CC: Lin Ming <ming.m.lin@intel.com>
CC: Nick Piggin <nickpiggin@yahoo.com.au>
CC: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
 Documentation/vm/.gitignore |    1 
 Documentation/vm/Makefile   |    8 
 Documentation/vm/slabinfo.c | 1364 ----------------------------------
 Documentation/vm/slqbinfo.c | 1047 --------------------------
 Documentation/vm/slub.txt   |    2 
 tools/vm/.gitignore         |    2 
 tools/vm/Makefile           |    2 
 tools/vm/slabinfo.c         | 1364 ++++++++++++++++++++++++++++++++++
 tools/vm/slqbinfo.c         | 1047 ++++++++++++++++++++++++++
 9 files changed, 2415 insertions(+), 2422 deletions(-)

--- linux-mm.orig/Documentation/vm/slabinfo.c	2009-09-02 11:27:38.000000000 +0800
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,1364 +0,0 @@
-/*
- * Slabinfo: Tool to get reports about slabs
- *
- * (C) 2007 sgi, Christoph Lameter
- *
- * Compile by:
- *
- * gcc -o slabinfo slabinfo.c
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <strings.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdarg.h>
-#include <getopt.h>
-#include <regex.h>
-#include <errno.h>
-
-#define MAX_SLABS 500
-#define MAX_ALIASES 500
-#define MAX_NODES 1024
-
-struct slabinfo {
-	char *name;
-	int alias;
-	int refs;
-	int aliases, align, cache_dma, cpu_slabs, destroy_by_rcu;
-	int hwcache_align, object_size, objs_per_slab;
-	int sanity_checks, slab_size, store_user, trace;
-	int order, poison, reclaim_account, red_zone;
-	unsigned long partial, objects, slabs, objects_partial, objects_total;
-	unsigned long alloc_fastpath, alloc_slowpath;
-	unsigned long free_fastpath, free_slowpath;
-	unsigned long free_frozen, free_add_partial, free_remove_partial;
-	unsigned long alloc_from_partial, alloc_slab, free_slab, alloc_refill;
-	unsigned long cpuslab_flush, deactivate_full, deactivate_empty;
-	unsigned long deactivate_to_head, deactivate_to_tail;
-	unsigned long deactivate_remote_frees, order_fallback;
-	int numa[MAX_NODES];
-	int numa_partial[MAX_NODES];
-} slabinfo[MAX_SLABS];
-
-struct aliasinfo {
-	char *name;
-	char *ref;
-	struct slabinfo *slab;
-} aliasinfo[MAX_ALIASES];
-
-int slabs = 0;
-int actual_slabs = 0;
-int aliases = 0;
-int alias_targets = 0;
-int highest_node = 0;
-
-char buffer[4096];
-
-int show_empty = 0;
-int show_report = 0;
-int show_alias = 0;
-int show_slab = 0;
-int skip_zero = 1;
-int show_numa = 0;
-int show_track = 0;
-int show_first_alias = 0;
-int validate = 0;
-int shrink = 0;
-int show_inverted = 0;
-int show_single_ref = 0;
-int show_totals = 0;
-int sort_size = 0;
-int sort_active = 0;
-int set_debug = 0;
-int show_ops = 0;
-int show_activity = 0;
-
-/* Debug options */
-int sanity = 0;
-int redzone = 0;
-int poison = 0;
-int tracking = 0;
-int tracing = 0;
-
-int page_size;
-
-regex_t pattern;
-
-static void fatal(const char *x, ...)
-{
-	va_list ap;
-
-	va_start(ap, x);
-	vfprintf(stderr, x, ap);
-	va_end(ap);
-	exit(EXIT_FAILURE);
-}
-
-static void usage(void)
-{
-	printf("slabinfo 5/7/2007. (c) 2007 sgi.\n\n"
-		"slabinfo [-ahnpvtsz] [-d debugopts] [slab-regexp]\n"
-		"-a|--aliases           Show aliases\n"
-		"-A|--activity          Most active slabs first\n"
-		"-d<options>|--debug=<options> Set/Clear Debug options\n"
-		"-D|--display-active    Switch line format to activity\n"
-		"-e|--empty             Show empty slabs\n"
-		"-f|--first-alias       Show first alias\n"
-		"-h|--help              Show usage information\n"
-		"-i|--inverted          Inverted list\n"
-		"-l|--slabs             Show slabs\n"
-		"-n|--numa              Show NUMA information\n"
-		"-o|--ops		Show kmem_cache_ops\n"
-		"-s|--shrink            Shrink slabs\n"
-		"-r|--report		Detailed report on single slabs\n"
-		"-S|--Size              Sort by size\n"
-		"-t|--tracking          Show alloc/free information\n"
-		"-T|--Totals            Show summary information\n"
-		"-v|--validate          Validate slabs\n"
-		"-z|--zero              Include empty slabs\n"
-		"-1|--1ref              Single reference\n"
-		"\nValid debug options (FZPUT may be combined)\n"
-		"a / A          Switch on all debug options (=FZUP)\n"
-		"-              Switch off all debug options\n"
-		"f / F          Sanity Checks (SLAB_DEBUG_FREE)\n"
-		"z / Z          Redzoning\n"
-		"p / P          Poisoning\n"
-		"u / U          Tracking\n"
-		"t / T          Tracing\n"
-	);
-}
-
-static unsigned long read_obj(const char *name)
-{
-	FILE *f = fopen(name, "r");
-
-	if (!f)
-		buffer[0] = 0;
-	else {
-		if (!fgets(buffer, sizeof(buffer), f))
-			buffer[0] = 0;
-		fclose(f);
-		if (buffer[strlen(buffer)] == '\n')
-			buffer[strlen(buffer)] = 0;
-	}
-	return strlen(buffer);
-}
-
-
-/*
- * Get the contents of an attribute
- */
-static unsigned long get_obj(const char *name)
-{
-	if (!read_obj(name))
-		return 0;
-
-	return atol(buffer);
-}
-
-static unsigned long get_obj_and_str(const char *name, char **x)
-{
-	unsigned long result = 0;
-	char *p;
-
-	*x = NULL;
-
-	if (!read_obj(name)) {
-		x = NULL;
-		return 0;
-	}
-	result = strtoul(buffer, &p, 10);
-	while (*p == ' ')
-		p++;
-	if (*p)
-		*x = strdup(p);
-	return result;
-}
-
-static void set_obj(struct slabinfo *s, const char *name, int n)
-{
-	char x[100];
-	FILE *f;
-
-	snprintf(x, 100, "%s/%s", s->name, name);
-	f = fopen(x, "w");
-	if (!f)
-		fatal("Cannot write to %s\n", x);
-
-	fprintf(f, "%d\n", n);
-	fclose(f);
-}
-
-static unsigned long read_slab_obj(struct slabinfo *s, const char *name)
-{
-	char x[100];
-	FILE *f;
-	size_t l;
-
-	snprintf(x, 100, "%s/%s", s->name, name);
-	f = fopen(x, "r");
-	if (!f) {
-		buffer[0] = 0;
-		l = 0;
-	} else {
-		l = fread(buffer, 1, sizeof(buffer), f);
-		buffer[l] = 0;
-		fclose(f);
-	}
-	return l;
-}
-
-
-/*
- * Put a size string together
- */
-static int store_size(char *buffer, unsigned long value)
-{
-	unsigned long divisor = 1;
-	char trailer = 0;
-	int n;
-
-	if (value > 1000000000UL) {
-		divisor = 100000000UL;
-		trailer = 'G';
-	} else if (value > 1000000UL) {
-		divisor = 100000UL;
-		trailer = 'M';
-	} else if (value > 1000UL) {
-		divisor = 100;
-		trailer = 'K';
-	}
-
-	value /= divisor;
-	n = sprintf(buffer, "%ld",value);
-	if (trailer) {
-		buffer[n] = trailer;
-		n++;
-		buffer[n] = 0;
-	}
-	if (divisor != 1) {
-		memmove(buffer + n - 2, buffer + n - 3, 4);
-		buffer[n-2] = '.';
-		n++;
-	}
-	return n;
-}
-
-static void decode_numa_list(int *numa, char *t)
-{
-	int node;
-	int nr;
-
-	memset(numa, 0, MAX_NODES * sizeof(int));
-
-	if (!t)
-		return;
-
-	while (*t == 'N') {
-		t++;
-		node = strtoul(t, &t, 10);
-		if (*t == '=') {
-			t++;
-			nr = strtoul(t, &t, 10);
-			numa[node] = nr;
-			if (node > highest_node)
-				highest_node = node;
-		}
-		while (*t == ' ')
-			t++;
-	}
-}
-
-static void slab_validate(struct slabinfo *s)
-{
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	set_obj(s, "validate", 1);
-}
-
-static void slab_shrink(struct slabinfo *s)
-{
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	set_obj(s, "shrink", 1);
-}
-
-int line = 0;
-
-static void first_line(void)
-{
-	if (show_activity)
-		printf("Name                   Objects      Alloc       Free   %%Fast Fallb O\n");
-	else
-		printf("Name                   Objects Objsize    Space "
-			"Slabs/Part/Cpu  O/S O %%Fr %%Ef Flg\n");
-}
-
-/*
- * Find the shortest alias of a slab
- */
-static struct aliasinfo *find_one_alias(struct slabinfo *find)
-{
-	struct aliasinfo *a;
-	struct aliasinfo *best = NULL;
-
-	for(a = aliasinfo;a < aliasinfo + aliases; a++) {
-		if (a->slab == find &&
-			(!best || strlen(best->name) < strlen(a->name))) {
-				best = a;
-				if (strncmp(a->name,"kmall", 5) == 0)
-					return best;
-			}
-	}
-	return best;
-}
-
-static unsigned long slab_size(struct slabinfo *s)
-{
-	return 	s->slabs * (page_size << s->order);
-}
-
-static unsigned long slab_activity(struct slabinfo *s)
-{
-	return 	s->alloc_fastpath + s->free_fastpath +
-		s->alloc_slowpath + s->free_slowpath;
-}
-
-static void slab_numa(struct slabinfo *s, int mode)
-{
-	int node;
-
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	if (!highest_node) {
-		printf("\n%s: No NUMA information available.\n", s->name);
-		return;
-	}
-
-	if (skip_zero && !s->slabs)
-		return;
-
-	if (!line) {
-		printf("\n%-21s:", mode ? "NUMA nodes" : "Slab");
-		for(node = 0; node <= highest_node; node++)
-			printf(" %4d", node);
-		printf("\n----------------------");
-		for(node = 0; node <= highest_node; node++)
-			printf("-----");
-		printf("\n");
-	}
-	printf("%-21s ", mode ? "All slabs" : s->name);
-	for(node = 0; node <= highest_node; node++) {
-		char b[20];
-
-		store_size(b, s->numa[node]);
-		printf(" %4s", b);
-	}
-	printf("\n");
-	if (mode) {
-		printf("%-21s ", "Partial slabs");
-		for(node = 0; node <= highest_node; node++) {
-			char b[20];
-
-			store_size(b, s->numa_partial[node]);
-			printf(" %4s", b);
-		}
-		printf("\n");
-	}
-	line++;
-}
-
-static void show_tracking(struct slabinfo *s)
-{
-	printf("\n%s: Kernel object allocation\n", s->name);
-	printf("-----------------------------------------------------------------------\n");
-	if (read_slab_obj(s, "alloc_calls"))
-		printf(buffer);
-	else
-		printf("No Data\n");
-
-	printf("\n%s: Kernel object freeing\n", s->name);
-	printf("------------------------------------------------------------------------\n");
-	if (read_slab_obj(s, "free_calls"))
-		printf(buffer);
-	else
-		printf("No Data\n");
-
-}
-
-static void ops(struct slabinfo *s)
-{
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	if (read_slab_obj(s, "ops")) {
-		printf("\n%s: kmem_cache operations\n", s->name);
-		printf("--------------------------------------------\n");
-		printf(buffer);
-	} else
-		printf("\n%s has no kmem_cache operations\n", s->name);
-}
-
-static const char *onoff(int x)
-{
-	if (x)
-		return "On ";
-	return "Off";
-}
-
-static void slab_stats(struct slabinfo *s)
-{
-	unsigned long total_alloc;
-	unsigned long total_free;
-	unsigned long total;
-
-	if (!s->alloc_slab)
-		return;
-
-	total_alloc = s->alloc_fastpath + s->alloc_slowpath;
-	total_free = s->free_fastpath + s->free_slowpath;
-
-	if (!total_alloc)
-		return;
-
-	printf("\n");
-	printf("Slab Perf Counter       Alloc     Free %%Al %%Fr\n");
-	printf("--------------------------------------------------\n");
-	printf("Fastpath             %8lu %8lu %3lu %3lu\n",
-		s->alloc_fastpath, s->free_fastpath,
-		s->alloc_fastpath * 100 / total_alloc,
-		s->free_fastpath * 100 / total_free);
-	printf("Slowpath             %8lu %8lu %3lu %3lu\n",
-		total_alloc - s->alloc_fastpath, s->free_slowpath,
-		(total_alloc - s->alloc_fastpath) * 100 / total_alloc,
-		s->free_slowpath * 100 / total_free);
-	printf("Page Alloc           %8lu %8lu %3lu %3lu\n",
-		s->alloc_slab, s->free_slab,
-		s->alloc_slab * 100 / total_alloc,
-		s->free_slab * 100 / total_free);
-	printf("Add partial          %8lu %8lu %3lu %3lu\n",
-		s->deactivate_to_head + s->deactivate_to_tail,
-		s->free_add_partial,
-		(s->deactivate_to_head + s->deactivate_to_tail) * 100 / total_alloc,
-		s->free_add_partial * 100 / total_free);
-	printf("Remove partial       %8lu %8lu %3lu %3lu\n",
-		s->alloc_from_partial, s->free_remove_partial,
-		s->alloc_from_partial * 100 / total_alloc,
-		s->free_remove_partial * 100 / total_free);
-
-	printf("RemoteObj/SlabFrozen %8lu %8lu %3lu %3lu\n",
-		s->deactivate_remote_frees, s->free_frozen,
-		s->deactivate_remote_frees * 100 / total_alloc,
-		s->free_frozen * 100 / total_free);
-
-	printf("Total                %8lu %8lu\n\n", total_alloc, total_free);
-
-	if (s->cpuslab_flush)
-		printf("Flushes %8lu\n", s->cpuslab_flush);
-
-	if (s->alloc_refill)
-		printf("Refill %8lu\n", s->alloc_refill);
-
-	total = s->deactivate_full + s->deactivate_empty +
-			s->deactivate_to_head + s->deactivate_to_tail;
-
-	if (total)
-		printf("Deactivate Full=%lu(%lu%%) Empty=%lu(%lu%%) "
-			"ToHead=%lu(%lu%%) ToTail=%lu(%lu%%)\n",
-			s->deactivate_full, (s->deactivate_full * 100) / total,
-			s->deactivate_empty, (s->deactivate_empty * 100) / total,
-			s->deactivate_to_head, (s->deactivate_to_head * 100) / total,
-			s->deactivate_to_tail, (s->deactivate_to_tail * 100) / total);
-}
-
-static void report(struct slabinfo *s)
-{
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	printf("\nSlabcache: %-20s  Aliases: %2d Order : %2d Objects: %lu\n",
-		s->name, s->aliases, s->order, s->objects);
-	if (s->hwcache_align)
-		printf("** Hardware cacheline aligned\n");
-	if (s->cache_dma)
-		printf("** Memory is allocated in a special DMA zone\n");
-	if (s->destroy_by_rcu)
-		printf("** Slabs are destroyed via RCU\n");
-	if (s->reclaim_account)
-		printf("** Reclaim accounting active\n");
-
-	printf("\nSizes (bytes)     Slabs              Debug                Memory\n");
-	printf("------------------------------------------------------------------------\n");
-	printf("Object : %7d  Total  : %7ld   Sanity Checks : %s  Total: %7ld\n",
-			s->object_size, s->slabs, onoff(s->sanity_checks),
-			s->slabs * (page_size << s->order));
-	printf("SlabObj: %7d  Full   : %7ld   Redzoning     : %s  Used : %7ld\n",
-			s->slab_size, s->slabs - s->partial - s->cpu_slabs,
-			onoff(s->red_zone), s->objects * s->object_size);
-	printf("SlabSiz: %7d  Partial: %7ld   Poisoning     : %s  Loss : %7ld\n",
-			page_size << s->order, s->partial, onoff(s->poison),
-			s->slabs * (page_size << s->order) - s->objects * s->object_size);
-	printf("Loss   : %7d  CpuSlab: %7d   Tracking      : %s  Lalig: %7ld\n",
-			s->slab_size - s->object_size, s->cpu_slabs, onoff(s->store_user),
-			(s->slab_size - s->object_size) * s->objects);
-	printf("Align  : %7d  Objects: %7d   Tracing       : %s  Lpadd: %7ld\n",
-			s->align, s->objs_per_slab, onoff(s->trace),
-			((page_size << s->order) - s->objs_per_slab * s->slab_size) *
-			s->slabs);
-
-	ops(s);
-	show_tracking(s);
-	slab_numa(s, 1);
-	slab_stats(s);
-}
-
-static void slabcache(struct slabinfo *s)
-{
-	char size_str[20];
-	char dist_str[40];
-	char flags[20];
-	char *p = flags;
-
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	if (actual_slabs == 1) {
-		report(s);
-		return;
-	}
-
-	if (skip_zero && !show_empty && !s->slabs)
-		return;
-
-	if (show_empty && s->slabs)
-		return;
-
-	store_size(size_str, slab_size(s));
-	snprintf(dist_str, 40, "%lu/%lu/%d", s->slabs - s->cpu_slabs,
-						s->partial, s->cpu_slabs);
-
-	if (!line++)
-		first_line();
-
-	if (s->aliases)
-		*p++ = '*';
-	if (s->cache_dma)
-		*p++ = 'd';
-	if (s->hwcache_align)
-		*p++ = 'A';
-	if (s->poison)
-		*p++ = 'P';
-	if (s->reclaim_account)
-		*p++ = 'a';
-	if (s->red_zone)
-		*p++ = 'Z';
-	if (s->sanity_checks)
-		*p++ = 'F';
-	if (s->store_user)
-		*p++ = 'U';
-	if (s->trace)
-		*p++ = 'T';
-
-	*p = 0;
-	if (show_activity) {
-		unsigned long total_alloc;
-		unsigned long total_free;
-
-		total_alloc = s->alloc_fastpath + s->alloc_slowpath;
-		total_free = s->free_fastpath + s->free_slowpath;
-
-		printf("%-21s %8ld %10ld %10ld %3ld %3ld %5ld %1d\n",
-			s->name, s->objects,
-			total_alloc, total_free,
-			total_alloc ? (s->alloc_fastpath * 100 / total_alloc) : 0,
-			total_free ? (s->free_fastpath * 100 / total_free) : 0,
-			s->order_fallback, s->order);
-	}
-	else
-		printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s\n",
-			s->name, s->objects, s->object_size, size_str, dist_str,
-			s->objs_per_slab, s->order,
-			s->slabs ? (s->partial * 100) / s->slabs : 100,
-			s->slabs ? (s->objects * s->object_size * 100) /
-				(s->slabs * (page_size << s->order)) : 100,
-			flags);
-}
-
-/*
- * Analyze debug options. Return false if something is amiss.
- */
-static int debug_opt_scan(char *opt)
-{
-	if (!opt || !opt[0] || strcmp(opt, "-") == 0)
-		return 1;
-
-	if (strcasecmp(opt, "a") == 0) {
-		sanity = 1;
-		poison = 1;
-		redzone = 1;
-		tracking = 1;
-		return 1;
-	}
-
-	for ( ; *opt; opt++)
-	 	switch (*opt) {
-		case 'F' : case 'f':
-			if (sanity)
-				return 0;
-			sanity = 1;
-			break;
-		case 'P' : case 'p':
-			if (poison)
-				return 0;
-			poison = 1;
-			break;
-
-		case 'Z' : case 'z':
-			if (redzone)
-				return 0;
-			redzone = 1;
-			break;
-
-		case 'U' : case 'u':
-			if (tracking)
-				return 0;
-			tracking = 1;
-			break;
-
-		case 'T' : case 't':
-			if (tracing)
-				return 0;
-			tracing = 1;
-			break;
-		default:
-			return 0;
-		}
-	return 1;
-}
-
-static int slab_empty(struct slabinfo *s)
-{
-	if (s->objects > 0)
-		return 0;
-
-	/*
-	 * We may still have slabs even if there are no objects. Shrinking will
-	 * remove them.
-	 */
-	if (s->slabs != 0)
-		set_obj(s, "shrink", 1);
-
-	return 1;
-}
-
-static void slab_debug(struct slabinfo *s)
-{
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	if (sanity && !s->sanity_checks) {
-		set_obj(s, "sanity", 1);
-	}
-	if (!sanity && s->sanity_checks) {
-		if (slab_empty(s))
-			set_obj(s, "sanity", 0);
-		else
-			fprintf(stderr, "%s not empty cannot disable sanity checks\n", s->name);
-	}
-	if (redzone && !s->red_zone) {
-		if (slab_empty(s))
-			set_obj(s, "red_zone", 1);
-		else
-			fprintf(stderr, "%s not empty cannot enable redzoning\n", s->name);
-	}
-	if (!redzone && s->red_zone) {
-		if (slab_empty(s))
-			set_obj(s, "red_zone", 0);
-		else
-			fprintf(stderr, "%s not empty cannot disable redzoning\n", s->name);
-	}
-	if (poison && !s->poison) {
-		if (slab_empty(s))
-			set_obj(s, "poison", 1);
-		else
-			fprintf(stderr, "%s not empty cannot enable poisoning\n", s->name);
-	}
-	if (!poison && s->poison) {
-		if (slab_empty(s))
-			set_obj(s, "poison", 0);
-		else
-			fprintf(stderr, "%s not empty cannot disable poisoning\n", s->name);
-	}
-	if (tracking && !s->store_user) {
-		if (slab_empty(s))
-			set_obj(s, "store_user", 1);
-		else
-			fprintf(stderr, "%s not empty cannot enable tracking\n", s->name);
-	}
-	if (!tracking && s->store_user) {
-		if (slab_empty(s))
-			set_obj(s, "store_user", 0);
-		else
-			fprintf(stderr, "%s not empty cannot disable tracking\n", s->name);
-	}
-	if (tracing && !s->trace) {
-		if (slabs == 1)
-			set_obj(s, "trace", 1);
-		else
-			fprintf(stderr, "%s can only enable trace for one slab at a time\n", s->name);
-	}
-	if (!tracing && s->trace)
-		set_obj(s, "trace", 1);
-}
-
-static void totals(void)
-{
-	struct slabinfo *s;
-
-	int used_slabs = 0;
-	char b1[20], b2[20], b3[20], b4[20];
-	unsigned long long max = 1ULL << 63;
-
-	/* Object size */
-	unsigned long long min_objsize = max, max_objsize = 0, avg_objsize;
-
-	/* Number of partial slabs in a slabcache */
-	unsigned long long min_partial = max, max_partial = 0,
-				avg_partial, total_partial = 0;
-
-	/* Number of slabs in a slab cache */
-	unsigned long long min_slabs = max, max_slabs = 0,
-				avg_slabs, total_slabs = 0;
-
-	/* Size of the whole slab */
-	unsigned long long min_size = max, max_size = 0,
-				avg_size, total_size = 0;
-
-	/* Bytes used for object storage in a slab */
-	unsigned long long min_used = max, max_used = 0,
-				avg_used, total_used = 0;
-
-	/* Waste: Bytes used for alignment and padding */
-	unsigned long long min_waste = max, max_waste = 0,
-				avg_waste, total_waste = 0;
-	/* Number of objects in a slab */
-	unsigned long long min_objects = max, max_objects = 0,
-				avg_objects, total_objects = 0;
-	/* Waste per object */
-	unsigned long long min_objwaste = max,
-				max_objwaste = 0, avg_objwaste,
-				total_objwaste = 0;
-
-	/* Memory per object */
-	unsigned long long min_memobj = max,
-				max_memobj = 0, avg_memobj,
-				total_objsize = 0;
-
-	/* Percentage of partial slabs per slab */
-	unsigned long min_ppart = 100, max_ppart = 0,
-				avg_ppart, total_ppart = 0;
-
-	/* Number of objects in partial slabs */
-	unsigned long min_partobj = max, max_partobj = 0,
-				avg_partobj, total_partobj = 0;
-
-	/* Percentage of partial objects of all objects in a slab */
-	unsigned long min_ppartobj = 100, max_ppartobj = 0,
-				avg_ppartobj, total_ppartobj = 0;
-
-
-	for (s = slabinfo; s < slabinfo + slabs; s++) {
-		unsigned long long size;
-		unsigned long used;
-		unsigned long long wasted;
-		unsigned long long objwaste;
-		unsigned long percentage_partial_slabs;
-		unsigned long percentage_partial_objs;
-
-		if (!s->slabs || !s->objects)
-			continue;
-
-		used_slabs++;
-
-		size = slab_size(s);
-		used = s->objects * s->object_size;
-		wasted = size - used;
-		objwaste = s->slab_size - s->object_size;
-
-		percentage_partial_slabs = s->partial * 100 / s->slabs;
-		if (percentage_partial_slabs > 100)
-			percentage_partial_slabs = 100;
-
-		percentage_partial_objs = s->objects_partial * 100
-							/ s->objects;
-
-		if (percentage_partial_objs > 100)
-			percentage_partial_objs = 100;
-
-		if (s->object_size < min_objsize)
-			min_objsize = s->object_size;
-		if (s->partial < min_partial)
-			min_partial = s->partial;
-		if (s->slabs < min_slabs)
-			min_slabs = s->slabs;
-		if (size < min_size)
-			min_size = size;
-		if (wasted < min_waste)
-			min_waste = wasted;
-		if (objwaste < min_objwaste)
-			min_objwaste = objwaste;
-		if (s->objects < min_objects)
-			min_objects = s->objects;
-		if (used < min_used)
-			min_used = used;
-		if (s->objects_partial < min_partobj)
-			min_partobj = s->objects_partial;
-		if (percentage_partial_slabs < min_ppart)
-			min_ppart = percentage_partial_slabs;
-		if (percentage_partial_objs < min_ppartobj)
-			min_ppartobj = percentage_partial_objs;
-		if (s->slab_size < min_memobj)
-			min_memobj = s->slab_size;
-
-		if (s->object_size > max_objsize)
-			max_objsize = s->object_size;
-		if (s->partial > max_partial)
-			max_partial = s->partial;
-		if (s->slabs > max_slabs)
-			max_slabs = s->slabs;
-		if (size > max_size)
-			max_size = size;
-		if (wasted > max_waste)
-			max_waste = wasted;
-		if (objwaste > max_objwaste)
-			max_objwaste = objwaste;
-		if (s->objects > max_objects)
-			max_objects = s->objects;
-		if (used > max_used)
-			max_used = used;
-		if (s->objects_partial > max_partobj)
-			max_partobj = s->objects_partial;
-		if (percentage_partial_slabs > max_ppart)
-			max_ppart = percentage_partial_slabs;
-		if (percentage_partial_objs > max_ppartobj)
-			max_ppartobj = percentage_partial_objs;
-		if (s->slab_size > max_memobj)
-			max_memobj = s->slab_size;
-
-		total_partial += s->partial;
-		total_slabs += s->slabs;
-		total_size += size;
-		total_waste += wasted;
-
-		total_objects += s->objects;
-		total_used += used;
-		total_partobj += s->objects_partial;
-		total_ppart += percentage_partial_slabs;
-		total_ppartobj += percentage_partial_objs;
-
-		total_objwaste += s->objects * objwaste;
-		total_objsize += s->objects * s->slab_size;
-	}
-
-	if (!total_objects) {
-		printf("No objects\n");
-		return;
-	}
-	if (!used_slabs) {
-		printf("No slabs\n");
-		return;
-	}
-
-	/* Per slab averages */
-	avg_partial = total_partial / used_slabs;
-	avg_slabs = total_slabs / used_slabs;
-	avg_size = total_size / used_slabs;
-	avg_waste = total_waste / used_slabs;
-
-	avg_objects = total_objects / used_slabs;
-	avg_used = total_used / used_slabs;
-	avg_partobj = total_partobj / used_slabs;
-	avg_ppart = total_ppart / used_slabs;
-	avg_ppartobj = total_ppartobj / used_slabs;
-
-	/* Per object object sizes */
-	avg_objsize = total_used / total_objects;
-	avg_objwaste = total_objwaste / total_objects;
-	avg_partobj = total_partobj * 100 / total_objects;
-	avg_memobj = total_objsize / total_objects;
-
-	printf("Slabcache Totals\n");
-	printf("----------------\n");
-	printf("Slabcaches : %3d      Aliases  : %3d->%-3d Active: %3d\n",
-			slabs, aliases, alias_targets, used_slabs);
-
-	store_size(b1, total_size);store_size(b2, total_waste);
-	store_size(b3, total_waste * 100 / total_used);
-	printf("Memory used: %6s   # Loss   : %6s   MRatio:%6s%%\n", b1, b2, b3);
-
-	store_size(b1, total_objects);store_size(b2, total_partobj);
-	store_size(b3, total_partobj * 100 / total_objects);
-	printf("# Objects  : %6s   # PartObj: %6s   ORatio:%6s%%\n", b1, b2, b3);
-
-	printf("\n");
-	printf("Per Cache    Average         Min         Max       Total\n");
-	printf("---------------------------------------------------------\n");
-
-	store_size(b1, avg_objects);store_size(b2, min_objects);
-	store_size(b3, max_objects);store_size(b4, total_objects);
-	printf("#Objects  %10s  %10s  %10s  %10s\n",
-			b1,	b2,	b3,	b4);
-
-	store_size(b1, avg_slabs);store_size(b2, min_slabs);
-	store_size(b3, max_slabs);store_size(b4, total_slabs);
-	printf("#Slabs    %10s  %10s  %10s  %10s\n",
-			b1,	b2,	b3,	b4);
-
-	store_size(b1, avg_partial);store_size(b2, min_partial);
-	store_size(b3, max_partial);store_size(b4, total_partial);
-	printf("#PartSlab %10s  %10s  %10s  %10s\n",
-			b1,	b2,	b3,	b4);
-	store_size(b1, avg_ppart);store_size(b2, min_ppart);
-	store_size(b3, max_ppart);
-	store_size(b4, total_partial * 100  / total_slabs);
-	printf("%%PartSlab%10s%% %10s%% %10s%% %10s%%\n",
-			b1,	b2,	b3,	b4);
-
-	store_size(b1, avg_partobj);store_size(b2, min_partobj);
-	store_size(b3, max_partobj);
-	store_size(b4, total_partobj);
-	printf("PartObjs  %10s  %10s  %10s  %10s\n",
-			b1,	b2,	b3,	b4);
-
-	store_size(b1, avg_ppartobj);store_size(b2, min_ppartobj);
-	store_size(b3, max_ppartobj);
-	store_size(b4, total_partobj * 100 / total_objects);
-	printf("%% PartObj%10s%% %10s%% %10s%% %10s%%\n",
-			b1,	b2,	b3,	b4);
-
-	store_size(b1, avg_size);store_size(b2, min_size);
-	store_size(b3, max_size);store_size(b4, total_size);
-	printf("Memory    %10s  %10s  %10s  %10s\n",
-			b1,	b2,	b3,	b4);
-
-	store_size(b1, avg_used);store_size(b2, min_used);
-	store_size(b3, max_used);store_size(b4, total_used);
-	printf("Used      %10s  %10s  %10s  %10s\n",
-			b1,	b2,	b3,	b4);
-
-	store_size(b1, avg_waste);store_size(b2, min_waste);
-	store_size(b3, max_waste);store_size(b4, total_waste);
-	printf("Loss      %10s  %10s  %10s  %10s\n",
-			b1,	b2,	b3,	b4);
-
-	printf("\n");
-	printf("Per Object   Average         Min         Max\n");
-	printf("---------------------------------------------\n");
-
-	store_size(b1, avg_memobj);store_size(b2, min_memobj);
-	store_size(b3, max_memobj);
-	printf("Memory    %10s  %10s  %10s\n",
-			b1,	b2,	b3);
-	store_size(b1, avg_objsize);store_size(b2, min_objsize);
-	store_size(b3, max_objsize);
-	printf("User      %10s  %10s  %10s\n",
-			b1,	b2,	b3);
-
-	store_size(b1, avg_objwaste);store_size(b2, min_objwaste);
-	store_size(b3, max_objwaste);
-	printf("Loss      %10s  %10s  %10s\n",
-			b1,	b2,	b3);
-}
-
-static void sort_slabs(void)
-{
-	struct slabinfo *s1,*s2;
-
-	for (s1 = slabinfo; s1 < slabinfo + slabs; s1++) {
-		for (s2 = s1 + 1; s2 < slabinfo + slabs; s2++) {
-			int result;
-
-			if (sort_size)
-				result = slab_size(s1) < slab_size(s2);
-			else if (sort_active)
-				result = slab_activity(s1) < slab_activity(s2);
-			else
-				result = strcasecmp(s1->name, s2->name);
-
-			if (show_inverted)
-				result = -result;
-
-			if (result > 0) {
-				struct slabinfo t;
-
-				memcpy(&t, s1, sizeof(struct slabinfo));
-				memcpy(s1, s2, sizeof(struct slabinfo));
-				memcpy(s2, &t, sizeof(struct slabinfo));
-			}
-		}
-	}
-}
-
-static void sort_aliases(void)
-{
-	struct aliasinfo *a1,*a2;
-
-	for (a1 = aliasinfo; a1 < aliasinfo + aliases; a1++) {
-		for (a2 = a1 + 1; a2 < aliasinfo + aliases; a2++) {
-			char *n1, *n2;
-
-			n1 = a1->name;
-			n2 = a2->name;
-			if (show_alias && !show_inverted) {
-				n1 = a1->ref;
-				n2 = a2->ref;
-			}
-			if (strcasecmp(n1, n2) > 0) {
-				struct aliasinfo t;
-
-				memcpy(&t, a1, sizeof(struct aliasinfo));
-				memcpy(a1, a2, sizeof(struct aliasinfo));
-				memcpy(a2, &t, sizeof(struct aliasinfo));
-			}
-		}
-	}
-}
-
-static void link_slabs(void)
-{
-	struct aliasinfo *a;
-	struct slabinfo *s;
-
-	for (a = aliasinfo; a < aliasinfo + aliases; a++) {
-
-		for (s = slabinfo; s < slabinfo + slabs; s++)
-			if (strcmp(a->ref, s->name) == 0) {
-				a->slab = s;
-				s->refs++;
-				break;
-			}
-		if (s == slabinfo + slabs)
-			fatal("Unresolved alias %s\n", a->ref);
-	}
-}
-
-static void alias(void)
-{
-	struct aliasinfo *a;
-	char *active = NULL;
-
-	sort_aliases();
-	link_slabs();
-
-	for(a = aliasinfo; a < aliasinfo + aliases; a++) {
-
-		if (!show_single_ref && a->slab->refs == 1)
-			continue;
-
-		if (!show_inverted) {
-			if (active) {
-				if (strcmp(a->slab->name, active) == 0) {
-					printf(" %s", a->name);
-					continue;
-				}
-			}
-			printf("\n%-12s <- %s", a->slab->name, a->name);
-			active = a->slab->name;
-		}
-		else
-			printf("%-20s -> %s\n", a->name, a->slab->name);
-	}
-	if (active)
-		printf("\n");
-}
-
-
-static void rename_slabs(void)
-{
-	struct slabinfo *s;
-	struct aliasinfo *a;
-
-	for (s = slabinfo; s < slabinfo + slabs; s++) {
-		if (*s->name != ':')
-			continue;
-
-		if (s->refs > 1 && !show_first_alias)
-			continue;
-
-		a = find_one_alias(s);
-
-		if (a)
-			s->name = a->name;
-		else {
-			s->name = "*";
-			actual_slabs--;
-		}
-	}
-}
-
-static int slab_mismatch(char *slab)
-{
-	return regexec(&pattern, slab, 0, NULL, 0);
-}
-
-static void read_slab_dir(void)
-{
-	DIR *dir;
-	struct dirent *de;
-	struct slabinfo *slab = slabinfo;
-	struct aliasinfo *alias = aliasinfo;
-	char *p;
-	char *t;
-	int count;
-
-	if (chdir("/sys/kernel/slab") && chdir("/sys/slab"))
-		fatal("SYSFS support for SLUB not active\n");
-
-	dir = opendir(".");
-	while ((de = readdir(dir))) {
-		if (de->d_name[0] == '.' ||
-			(de->d_name[0] != ':' && slab_mismatch(de->d_name)))
-				continue;
-		switch (de->d_type) {
-		   case DT_LNK:
-		   	alias->name = strdup(de->d_name);
-			count = readlink(de->d_name, buffer, sizeof(buffer));
-
-			if (count < 0)
-				fatal("Cannot read symlink %s\n", de->d_name);
-
-			buffer[count] = 0;
-			p = buffer + count;
-			while (p > buffer && p[-1] != '/')
-				p--;
-			alias->ref = strdup(p);
-			alias++;
-			break;
-		   case DT_DIR:
-			if (chdir(de->d_name))
-				fatal("Unable to access slab %s\n", slab->name);
-		   	slab->name = strdup(de->d_name);
-			slab->alias = 0;
-			slab->refs = 0;
-			slab->aliases = get_obj("aliases");
-			slab->align = get_obj("align");
-			slab->cache_dma = get_obj("cache_dma");
-			slab->cpu_slabs = get_obj("cpu_slabs");
-			slab->destroy_by_rcu = get_obj("destroy_by_rcu");
-			slab->hwcache_align = get_obj("hwcache_align");
-			slab->object_size = get_obj("object_size");
-			slab->objects = get_obj("objects");
-			slab->objects_partial = get_obj("objects_partial");
-			slab->objects_total = get_obj("objects_total");
-			slab->objs_per_slab = get_obj("objs_per_slab");
-			slab->order = get_obj("order");
-			slab->partial = get_obj("partial");
-			slab->partial = get_obj_and_str("partial", &t);
-			decode_numa_list(slab->numa_partial, t);
-			free(t);
-			slab->poison = get_obj("poison");
-			slab->reclaim_account = get_obj("reclaim_account");
-			slab->red_zone = get_obj("red_zone");
-			slab->sanity_checks = get_obj("sanity_checks");
-			slab->slab_size = get_obj("slab_size");
-			slab->slabs = get_obj_and_str("slabs", &t);
-			decode_numa_list(slab->numa, t);
-			free(t);
-			slab->store_user = get_obj("store_user");
-			slab->trace = get_obj("trace");
-			slab->alloc_fastpath = get_obj("alloc_fastpath");
-			slab->alloc_slowpath = get_obj("alloc_slowpath");
-			slab->free_fastpath = get_obj("free_fastpath");
-			slab->free_slowpath = get_obj("free_slowpath");
-			slab->free_frozen= get_obj("free_frozen");
-			slab->free_add_partial = get_obj("free_add_partial");
-			slab->free_remove_partial = get_obj("free_remove_partial");
-			slab->alloc_from_partial = get_obj("alloc_from_partial");
-			slab->alloc_slab = get_obj("alloc_slab");
-			slab->alloc_refill = get_obj("alloc_refill");
-			slab->free_slab = get_obj("free_slab");
-			slab->cpuslab_flush = get_obj("cpuslab_flush");
-			slab->deactivate_full = get_obj("deactivate_full");
-			slab->deactivate_empty = get_obj("deactivate_empty");
-			slab->deactivate_to_head = get_obj("deactivate_to_head");
-			slab->deactivate_to_tail = get_obj("deactivate_to_tail");
-			slab->deactivate_remote_frees = get_obj("deactivate_remote_frees");
-			slab->order_fallback = get_obj("order_fallback");
-			chdir("..");
-			if (slab->name[0] == ':')
-				alias_targets++;
-			slab++;
-			break;
-		   default :
-			fatal("Unknown file type %lx\n", de->d_type);
-		}
-	}
-	closedir(dir);
-	slabs = slab - slabinfo;
-	actual_slabs = slabs;
-	aliases = alias - aliasinfo;
-	if (slabs > MAX_SLABS)
-		fatal("Too many slabs\n");
-	if (aliases > MAX_ALIASES)
-		fatal("Too many aliases\n");
-}
-
-static void output_slabs(void)
-{
-	struct slabinfo *slab;
-
-	for (slab = slabinfo; slab < slabinfo + slabs; slab++) {
-
-		if (slab->alias)
-			continue;
-
-
-		if (show_numa)
-			slab_numa(slab, 0);
-		else if (show_track)
-			show_tracking(slab);
-		else if (validate)
-			slab_validate(slab);
-		else if (shrink)
-			slab_shrink(slab);
-		else if (set_debug)
-			slab_debug(slab);
-		else if (show_ops)
-			ops(slab);
-		else if (show_slab)
-			slabcache(slab);
-		else if (show_report)
-			report(slab);
-	}
-}
-
-struct option opts[] = {
-	{ "aliases", 0, NULL, 'a' },
-	{ "activity", 0, NULL, 'A' },
-	{ "debug", 2, NULL, 'd' },
-	{ "display-activity", 0, NULL, 'D' },
-	{ "empty", 0, NULL, 'e' },
-	{ "first-alias", 0, NULL, 'f' },
-	{ "help", 0, NULL, 'h' },
-	{ "inverted", 0, NULL, 'i'},
-	{ "numa", 0, NULL, 'n' },
-	{ "ops", 0, NULL, 'o' },
-	{ "report", 0, NULL, 'r' },
-	{ "shrink", 0, NULL, 's' },
-	{ "slabs", 0, NULL, 'l' },
-	{ "track", 0, NULL, 't'},
-	{ "validate", 0, NULL, 'v' },
-	{ "zero", 0, NULL, 'z' },
-	{ "1ref", 0, NULL, '1'},
-	{ NULL, 0, NULL, 0 }
-};
-
-int main(int argc, char *argv[])
-{
-	int c;
-	int err;
-	char *pattern_source;
-
-	page_size = getpagesize();
-
-	while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTS",
-						opts, NULL)) != -1)
-		switch (c) {
-		case '1':
-			show_single_ref = 1;
-			break;
-		case 'a':
-			show_alias = 1;
-			break;
-		case 'A':
-			sort_active = 1;
-			break;
-		case 'd':
-			set_debug = 1;
-			if (!debug_opt_scan(optarg))
-				fatal("Invalid debug option '%s'\n", optarg);
-			break;
-		case 'D':
-			show_activity = 1;
-			break;
-		case 'e':
-			show_empty = 1;
-			break;
-		case 'f':
-			show_first_alias = 1;
-			break;
-		case 'h':
-			usage();
-			return 0;
-		case 'i':
-			show_inverted = 1;
-			break;
-		case 'n':
-			show_numa = 1;
-			break;
-		case 'o':
-			show_ops = 1;
-			break;
-		case 'r':
-			show_report = 1;
-			break;
-		case 's':
-			shrink = 1;
-			break;
-		case 'l':
-			show_slab = 1;
-			break;
-		case 't':
-			show_track = 1;
-			break;
-		case 'v':
-			validate = 1;
-			break;
-		case 'z':
-			skip_zero = 0;
-			break;
-		case 'T':
-			show_totals = 1;
-			break;
-		case 'S':
-			sort_size = 1;
-			break;
-
-		default:
-			fatal("%s: Invalid option '%c'\n", argv[0], optopt);
-
-	}
-
-	if (!show_slab && !show_alias && !show_track && !show_report
-		&& !validate && !shrink && !set_debug && !show_ops)
-			show_slab = 1;
-
-	if (argc > optind)
-		pattern_source = argv[optind];
-	else
-		pattern_source = ".*";
-
-	err = regcomp(&pattern, pattern_source, REG_ICASE|REG_NOSUB);
-	if (err)
-		fatal("%s: Invalid pattern '%s' code %d\n",
-			argv[0], pattern_source, err);
-	read_slab_dir();
-	if (show_alias)
-		alias();
-	else
-	if (show_totals)
-		totals();
-	else {
-		link_slabs();
-		rename_slabs();
-		sort_slabs();
-		output_slabs();
-	}
-	return 0;
-}
--- linux-mm.orig/Documentation/vm/slqbinfo.c	2009-09-02 11:27:38.000000000 +0800
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,1047 +0,0 @@
-/*
- * Slabinfo: Tool to get reports about slabs
- *
- * (C) 2007 sgi, Christoph Lameter
- *
- * Reworked by Lin Ming <ming.m.lin@intel.com> for SLQB
- *
- * Compile by:
- *
- * gcc -o slabinfo slabinfo.c
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <strings.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdarg.h>
-#include <getopt.h>
-#include <regex.h>
-#include <errno.h>
-
-#define MAX_SLABS 500
-#define MAX_ALIASES 500
-#define MAX_NODES 1024
-
-struct slabinfo {
-	char *name;
-	int align, cache_dma, destroy_by_rcu;
-	int hwcache_align, object_size, objs_per_slab;
-	int slab_size, store_user;
-	int order, poison, reclaim_account, red_zone;
-	int batch;
-	unsigned long objects, slabs, total_objects;
-	unsigned long alloc, alloc_slab_fill, alloc_slab_new;
-	unsigned long free, free_remote;
-	unsigned long claim_remote_list, claim_remote_list_objects;
-	unsigned long flush_free_list, flush_free_list_objects, flush_free_list_remote;
-	unsigned long flush_rfree_list, flush_rfree_list_objects;
-	unsigned long flush_slab_free, flush_slab_partial;
-	int numa[MAX_NODES];
-	int numa_partial[MAX_NODES];
-} slabinfo[MAX_SLABS];
-
-int slabs = 0;
-int actual_slabs = 0;
-int highest_node = 0;
-
-char buffer[4096];
-
-int show_empty = 0;
-int show_report = 0;
-int show_slab = 0;
-int skip_zero = 1;
-int show_numa = 0;
-int show_track = 0;
-int validate = 0;
-int shrink = 0;
-int show_inverted = 0;
-int show_totals = 0;
-int sort_size = 0;
-int sort_active = 0;
-int set_debug = 0;
-int show_ops = 0;
-int show_activity = 0;
-
-/* Debug options */
-int sanity = 0;
-int redzone = 0;
-int poison = 0;
-int tracking = 0;
-int tracing = 0;
-
-int page_size;
-
-regex_t pattern;
-
-void fatal(const char *x, ...)
-{
-	va_list ap;
-
-	va_start(ap, x);
-	vfprintf(stderr, x, ap);
-	va_end(ap);
-	exit(EXIT_FAILURE);
-}
-
-void usage(void)
-{
-	printf("slabinfo 5/7/2007. (c) 2007 sgi.\n\n"
-		"slabinfo [-ahnpvtsz] [-d debugopts] [slab-regexp]\n"
-		"-A|--activity          Most active slabs first\n"
-		"-d<options>|--debug=<options> Set/Clear Debug options\n"
-		"-D|--display-active    Switch line format to activity\n"
-		"-e|--empty             Show empty slabs\n"
-		"-h|--help              Show usage information\n"
-		"-i|--inverted          Inverted list\n"
-		"-l|--slabs             Show slabs\n"
-		"-n|--numa              Show NUMA information\n"
-		"-o|--ops		Show kmem_cache_ops\n"
-		"-s|--shrink            Shrink slabs\n"
-		"-r|--report		Detailed report on single slabs\n"
-		"-S|--Size              Sort by size\n"
-		"-t|--tracking          Show alloc/free information\n"
-		"-T|--Totals            Show summary information\n"
-		"-v|--validate          Validate slabs\n"
-		"-z|--zero              Include empty slabs\n"
-		"\nValid debug options (FZPUT may be combined)\n"
-		"a / A          Switch on all debug options (=FZUP)\n"
-		"-              Switch off all debug options\n"
-		"f / F          Sanity Checks (SLAB_DEBUG_FREE)\n"
-		"z / Z          Redzoning\n"
-		"p / P          Poisoning\n"
-		"u / U          Tracking\n"
-		"t / T          Tracing\n"
-	);
-}
-
-unsigned long read_obj(const char *name)
-{
-	FILE *f = fopen(name, "r");
-
-	if (!f)
-		buffer[0] = 0;
-	else {
-		if (!fgets(buffer, sizeof(buffer), f))
-			buffer[0] = 0;
-		fclose(f);
-		if (buffer[strlen(buffer)] == '\n')
-			buffer[strlen(buffer)] = 0;
-	}
-	return strlen(buffer);
-}
-
-
-/*
- * Get the contents of an attribute
- */
-unsigned long get_obj(const char *name)
-{
-	if (!read_obj(name))
-		return 0;
-
-	return atol(buffer);
-}
-
-unsigned long get_obj_and_str(const char *name, char **x)
-{
-	unsigned long result = 0;
-	char *p;
-
-	*x = NULL;
-
-	if (!read_obj(name)) {
-		x = NULL;
-		return 0;
-	}
-	result = strtoul(buffer, &p, 10);
-	while (*p == ' ')
-		p++;
-	if (*p)
-		*x = strdup(p);
-	return result;
-}
-
-void set_obj(struct slabinfo *s, const char *name, int n)
-{
-	char x[100];
-	FILE *f;
-
-	snprintf(x, 100, "%s/%s", s->name, name);
-	f = fopen(x, "w");
-	if (!f)
-		fatal("Cannot write to %s\n", x);
-
-	fprintf(f, "%d\n", n);
-	fclose(f);
-}
-
-unsigned long read_slab_obj(struct slabinfo *s, const char *name)
-{
-	char x[100];
-	FILE *f;
-	size_t l;
-
-	snprintf(x, 100, "%s/%s", s->name, name);
-	f = fopen(x, "r");
-	if (!f) {
-		buffer[0] = 0;
-		l = 0;
-	} else {
-		l = fread(buffer, 1, sizeof(buffer), f);
-		buffer[l] = 0;
-		fclose(f);
-	}
-	return l;
-}
-
-
-/*
- * Put a size string together
- */
-int store_size(char *buffer, unsigned long value)
-{
-	unsigned long divisor = 1;
-	char trailer = 0;
-	int n;
-
-	if (value > 1000000000UL) {
-		divisor = 100000000UL;
-		trailer = 'G';
-	} else if (value > 1000000UL) {
-		divisor = 100000UL;
-		trailer = 'M';
-	} else if (value > 1000UL) {
-		divisor = 100;
-		trailer = 'K';
-	}
-
-	value /= divisor;
-	n = sprintf(buffer, "%ld",value);
-	if (trailer) {
-		buffer[n] = trailer;
-		n++;
-		buffer[n] = 0;
-	}
-	if (divisor != 1) {
-		memmove(buffer + n - 2, buffer + n - 3, 4);
-		buffer[n-2] = '.';
-		n++;
-	}
-	return n;
-}
-
-void decode_numa_list(int *numa, char *t)
-{
-	int node;
-	int nr;
-
-	memset(numa, 0, MAX_NODES * sizeof(int));
-
-	if (!t)
-		return;
-
-	while (*t == 'N') {
-		t++;
-		node = strtoul(t, &t, 10);
-		if (*t == '=') {
-			t++;
-			nr = strtoul(t, &t, 10);
-			numa[node] = nr;
-			if (node > highest_node)
-				highest_node = node;
-		}
-		while (*t == ' ')
-			t++;
-	}
-}
-
-void slab_validate(struct slabinfo *s)
-{
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	set_obj(s, "validate", 1);
-}
-
-void slab_shrink(struct slabinfo *s)
-{
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	set_obj(s, "shrink", 1);
-}
-
-int line = 0;
-
-void first_line(void)
-{
-	if (show_activity)
-		printf("Name                   Objects      Alloc       Free   %%Fill %%New  "
-			"FlushR %%FlushR FlushR_Objs O\n");
-	else
-		printf("Name                   Objects Objsize    Space "
-			" O/S O %%Ef Batch Flg\n");
-}
-
-unsigned long slab_size(struct slabinfo *s)
-{
-	return 	s->slabs * (page_size << s->order);
-}
-
-unsigned long slab_activity(struct slabinfo *s)
-{
-	return 	s->alloc + s->free;
-}
-
-void slab_numa(struct slabinfo *s, int mode)
-{
-	int node;
-
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	if (!highest_node) {
-		printf("\n%s: No NUMA information available.\n", s->name);
-		return;
-	}
-
-	if (skip_zero && !s->slabs)
-		return;
-
-	if (!line) {
-		printf("\n%-21s:", mode ? "NUMA nodes" : "Slab");
-		for(node = 0; node <= highest_node; node++)
-			printf(" %4d", node);
-		printf("\n----------------------");
-		for(node = 0; node <= highest_node; node++)
-			printf("-----");
-		printf("\n");
-	}
-	printf("%-21s ", mode ? "All slabs" : s->name);
-	for(node = 0; node <= highest_node; node++) {
-		char b[20];
-
-		store_size(b, s->numa[node]);
-		printf(" %4s", b);
-	}
-	printf("\n");
-	if (mode) {
-		printf("%-21s ", "Partial slabs");
-		for(node = 0; node <= highest_node; node++) {
-			char b[20];
-
-			store_size(b, s->numa_partial[node]);
-			printf(" %4s", b);
-		}
-		printf("\n");
-	}
-	line++;
-}
-
-void show_tracking(struct slabinfo *s)
-{
-	printf("\n%s: Kernel object allocation\n", s->name);
-	printf("-----------------------------------------------------------------------\n");
-	if (read_slab_obj(s, "alloc_calls"))
-		printf(buffer);
-	else
-		printf("No Data\n");
-
-	printf("\n%s: Kernel object freeing\n", s->name);
-	printf("------------------------------------------------------------------------\n");
-	if (read_slab_obj(s, "free_calls"))
-		printf(buffer);
-	else
-		printf("No Data\n");
-
-}
-
-void ops(struct slabinfo *s)
-{
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	if (read_slab_obj(s, "ops")) {
-		printf("\n%s: kmem_cache operations\n", s->name);
-		printf("--------------------------------------------\n");
-		printf(buffer);
-	} else
-		printf("\n%s has no kmem_cache operations\n", s->name);
-}
-
-const char *onoff(int x)
-{
-	if (x)
-		return "On ";
-	return "Off";
-}
-
-void slab_stats(struct slabinfo *s)
-{
-	unsigned long total_alloc;
-	unsigned long total_free;
-
-	total_alloc = s->alloc;
-	total_free = s->free;
-
-	if (!total_alloc)
-		return;
-
-	printf("\n");
-	printf("Slab Perf Counter\n");
-	printf("------------------------------------------------------------------------\n");
-	printf("Alloc: %8lu, partial %8lu, page allocator %8lu\n",
-		total_alloc,
-		s->alloc_slab_fill, s->alloc_slab_new);
-	printf("Free:  %8lu, partial %8lu, page allocator %8lu, remote %5lu\n",
-		total_free,
-		s->flush_slab_partial,
-		s->flush_slab_free,
-		s->free_remote);
-	printf("Claim: %8lu, objects %8lu\n",
-		s->claim_remote_list,
-		s->claim_remote_list_objects);
-	printf("Flush: %8lu, objects %8lu, remote: %8lu\n",
-		s->flush_free_list,
-		s->flush_free_list_objects,
-		s->flush_free_list_remote);
-	printf("FlushR:%8lu, objects %8lu\n",
-		s->flush_rfree_list,
-		s->flush_rfree_list_objects);
-}
-
-void report(struct slabinfo *s)
-{
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	printf("\nSlabcache: %-20s  Order : %2d Objects: %lu\n",
-		s->name, s->order, s->objects);
-	if (s->hwcache_align)
-		printf("** Hardware cacheline aligned\n");
-	if (s->cache_dma)
-		printf("** Memory is allocated in a special DMA zone\n");
-	if (s->destroy_by_rcu)
-		printf("** Slabs are destroyed via RCU\n");
-	if (s->reclaim_account)
-		printf("** Reclaim accounting active\n");
-
-	printf("\nSizes (bytes)     Slabs              Debug                Memory\n");
-	printf("------------------------------------------------------------------------\n");
-	printf("Object : %7d  Total  : %7ld   Sanity Checks : %s  Total: %7ld\n",
-			s->object_size, s->slabs, "N/A",
-			s->slabs * (page_size << s->order));
-	printf("SlabObj: %7d  Full   : %7s   Redzoning     : %s  Used : %7ld\n",
-			s->slab_size, "N/A",
-			onoff(s->red_zone), s->objects * s->object_size);
-	printf("SlabSiz: %7d  Partial: %7s   Poisoning     : %s  Loss : %7ld\n",
-			page_size << s->order, "N/A", onoff(s->poison),
-			s->slabs * (page_size << s->order) - s->objects * s->object_size);
-	printf("Loss   : %7d  CpuSlab: %7s   Tracking      : %s  Lalig: %7ld\n",
-			s->slab_size - s->object_size, "N/A", onoff(s->store_user),
-			(s->slab_size - s->object_size) * s->objects);
-	printf("Align  : %7d  Objects: %7d   Tracing       : %s  Lpadd: %7ld\n",
-			s->align, s->objs_per_slab, "N/A",
-			((page_size << s->order) - s->objs_per_slab * s->slab_size) *
-			s->slabs);
-
-	ops(s);
-	show_tracking(s);
-	slab_numa(s, 1);
-	slab_stats(s);
-}
-
-void slabcache(struct slabinfo *s)
-{
-	char size_str[20];
-	char flags[20];
-	char *p = flags;
-
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	if (actual_slabs == 1) {
-		report(s);
-		return;
-	}
-
-	if (skip_zero && !show_empty && !s->slabs)
-		return;
-
-	if (show_empty && s->slabs)
-		return;
-
-	store_size(size_str, slab_size(s));
-
-	if (!line++)
-		first_line();
-
-	if (s->cache_dma)
-		*p++ = 'd';
-	if (s->hwcache_align)
-		*p++ = 'A';
-	if (s->poison)
-		*p++ = 'P';
-	if (s->reclaim_account)
-		*p++ = 'a';
-	if (s->red_zone)
-		*p++ = 'Z';
-	if (s->store_user)
-		*p++ = 'U';
-
-	*p = 0;
-	if (show_activity) {
-		unsigned long total_alloc;
-		unsigned long total_free;
-
-		total_alloc = s->alloc;
-		total_free = s->free;
-
-		printf("%-21s %8ld %10ld %10ld %5ld %5ld %7ld %5ld %7ld %8d\n",
-			s->name, s->objects,
-			total_alloc, total_free,
-			total_alloc ? (s->alloc_slab_fill * 100 / total_alloc) : 0,
-			total_alloc ? (s->alloc_slab_new * 100 / total_alloc) : 0,
-			s->flush_rfree_list,
-			s->flush_rfree_list * 100 / (total_alloc + total_free),
-			s->flush_rfree_list_objects,
-			s->order);
-	}
-	else
-		printf("%-21s %8ld %7d %8s %4d %1d %3ld %4d %s\n",
-			s->name, s->objects, s->object_size, size_str,
-			s->objs_per_slab, s->order,
-			s->slabs ? (s->objects * s->object_size * 100) /
-				(s->slabs * (page_size << s->order)) : 100,
-			s->batch, flags);
-}
-
-/*
- * Analyze debug options. Return false if something is amiss.
- */
-int debug_opt_scan(char *opt)
-{
-	if (!opt || !opt[0] || strcmp(opt, "-") == 0)
-		return 1;
-
-	if (strcasecmp(opt, "a") == 0) {
-		sanity = 1;
-		poison = 1;
-		redzone = 1;
-		tracking = 1;
-		return 1;
-	}
-
-	for ( ; *opt; opt++)
-	 	switch (*opt) {
-		case 'F' : case 'f':
-			if (sanity)
-				return 0;
-			sanity = 1;
-			break;
-		case 'P' : case 'p':
-			if (poison)
-				return 0;
-			poison = 1;
-			break;
-
-		case 'Z' : case 'z':
-			if (redzone)
-				return 0;
-			redzone = 1;
-			break;
-
-		case 'U' : case 'u':
-			if (tracking)
-				return 0;
-			tracking = 1;
-			break;
-
-		case 'T' : case 't':
-			if (tracing)
-				return 0;
-			tracing = 1;
-			break;
-		default:
-			return 0;
-		}
-	return 1;
-}
-
-int slab_empty(struct slabinfo *s)
-{
-	if (s->objects > 0)
-		return 0;
-
-	/*
-	 * We may still have slabs even if there are no objects. Shrinking will
-	 * remove them.
-	 */
-	if (s->slabs != 0)
-		set_obj(s, "shrink", 1);
-
-	return 1;
-}
-
-void slab_debug(struct slabinfo *s)
-{
-	if (strcmp(s->name, "*") == 0)
-		return;
-
-	if (redzone && !s->red_zone) {
-		if (slab_empty(s))
-			set_obj(s, "red_zone", 1);
-		else
-			fprintf(stderr, "%s not empty cannot enable redzoning\n", s->name);
-	}
-	if (!redzone && s->red_zone) {
-		if (slab_empty(s))
-			set_obj(s, "red_zone", 0);
-		else
-			fprintf(stderr, "%s not empty cannot disable redzoning\n", s->name);
-	}
-	if (poison && !s->poison) {
-		if (slab_empty(s))
-			set_obj(s, "poison", 1);
-		else
-			fprintf(stderr, "%s not empty cannot enable poisoning\n", s->name);
-	}
-	if (!poison && s->poison) {
-		if (slab_empty(s))
-			set_obj(s, "poison", 0);
-		else
-			fprintf(stderr, "%s not empty cannot disable poisoning\n", s->name);
-	}
-	if (tracking && !s->store_user) {
-		if (slab_empty(s))
-			set_obj(s, "store_user", 1);
-		else
-			fprintf(stderr, "%s not empty cannot enable tracking\n", s->name);
-	}
-	if (!tracking && s->store_user) {
-		if (slab_empty(s))
-			set_obj(s, "store_user", 0);
-		else
-			fprintf(stderr, "%s not empty cannot disable tracking\n", s->name);
-	}
-}
-
-void totals(void)
-{
-	struct slabinfo *s;
-
-	int used_slabs = 0;
-	char b1[20], b2[20], b3[20], b4[20];
-	unsigned long long max = 1ULL << 63;
-
-	/* Object size */
-	unsigned long long min_objsize = max, max_objsize = 0, avg_objsize;
-
-	/* Number of slabs in a slab cache */
-	unsigned long long min_slabs = max, max_slabs = 0,
-				avg_slabs, total_slabs = 0;
-
-	/* Size of the whole slab */
-	unsigned long long min_size = max, max_size = 0,
-				avg_size, total_size = 0;
-
-	/* Bytes used for object storage in a slab */
-	unsigned long long min_used = max, max_used = 0,
-				avg_used, total_used = 0;
-
-	/* Waste: Bytes used for alignment and padding */
-	unsigned long long min_waste = max, max_waste = 0,
-				avg_waste, total_waste = 0;
-	/* Number of objects in a slab */
-	unsigned long long min_objects = max, max_objects = 0,
-				avg_objects, total_objects = 0;
-	/* Waste per object */
-	unsigned long long min_objwaste = max,
-				max_objwaste = 0, avg_objwaste,
-				total_objwaste = 0;
-
-	/* Memory per object */
-	unsigned long long min_memobj = max,
-				max_memobj = 0, avg_memobj,
-				total_objsize = 0;
-
-	for (s = slabinfo; s < slabinfo + slabs; s++) {
-		unsigned long long size;
-		unsigned long used;
-		unsigned long long wasted;
-		unsigned long long objwaste;
-
-		if (!s->slabs || !s->objects)
-			continue;
-
-		used_slabs++;
-
-		size = slab_size(s);
-		used = s->objects * s->object_size;
-		wasted = size - used;
-		objwaste = s->slab_size - s->object_size;
-
-		if (s->object_size < min_objsize)
-			min_objsize = s->object_size;
-		if (s->slabs < min_slabs)
-			min_slabs = s->slabs;
-		if (size < min_size)
-			min_size = size;
-		if (wasted < min_waste)
-			min_waste = wasted;
-		if (objwaste < min_objwaste)
-			min_objwaste = objwaste;
-		if (s->objects < min_objects)
-			min_objects = s->objects;
-		if (used < min_used)
-			min_used = used;
-		if (s->slab_size < min_memobj)
-			min_memobj = s->slab_size;
-
-		if (s->object_size > max_objsize)
-			max_objsize = s->object_size;
-		if (s->slabs > max_slabs)
-			max_slabs = s->slabs;
-		if (size > max_size)
-			max_size = size;
-		if (wasted > max_waste)
-			max_waste = wasted;
-		if (objwaste > max_objwaste)
-			max_objwaste = objwaste;
-		if (s->objects > max_objects)
-			max_objects = s->objects;
-		if (used > max_used)
-			max_used = used;
-		if (s->slab_size > max_memobj)
-			max_memobj = s->slab_size;
-
-		total_slabs += s->slabs;
-		total_size += size;
-		total_waste += wasted;
-
-		total_objects += s->objects;
-		total_used += used;
-
-		total_objwaste += s->objects * objwaste;
-		total_objsize += s->objects * s->slab_size;
-	}
-
-	if (!total_objects) {
-		printf("No objects\n");
-		return;
-	}
-	if (!used_slabs) {
-		printf("No slabs\n");
-		return;
-	}
-
-	/* Per slab averages */
-	avg_slabs = total_slabs / used_slabs;
-	avg_size = total_size / used_slabs;
-	avg_waste = total_waste / used_slabs;
-
-	avg_objects = total_objects / used_slabs;
-	avg_used = total_used / used_slabs;
-
-	/* Per object object sizes */
-	avg_objsize = total_used / total_objects;
-	avg_objwaste = total_objwaste / total_objects;
-	avg_memobj = total_objsize / total_objects;
-
-	printf("Slabcache Totals\n");
-	printf("----------------\n");
-	printf("Slabcaches : %3d      Active: %3d\n",
-			slabs, used_slabs);
-
-	store_size(b1, total_size);store_size(b2, total_waste);
-	store_size(b3, total_waste * 100 / total_used);
-	printf("Memory used: %6s   # Loss   : %6s   MRatio:%6s%%\n", b1, b2, b3);
-
-	store_size(b1, total_objects);
-	printf("# Objects  : %6s\n", b1);
-
-	printf("\n");
-	printf("Per Cache    Average         Min         Max       Total\n");
-	printf("---------------------------------------------------------\n");
-
-	store_size(b1, avg_objects);store_size(b2, min_objects);
-	store_size(b3, max_objects);store_size(b4, total_objects);
-	printf("#Objects  %10s  %10s  %10s  %10s\n",
-			b1,	b2,	b3,	b4);
-
-	store_size(b1, avg_slabs);store_size(b2, min_slabs);
-	store_size(b3, max_slabs);store_size(b4, total_slabs);
-	printf("#Slabs    %10s  %10s  %10s  %10s\n",
-			b1,	b2,	b3,	b4);
-
-	store_size(b1, avg_size);store_size(b2, min_size);
-	store_size(b3, max_size);store_size(b4, total_size);
-	printf("Memory    %10s  %10s  %10s  %10s\n",
-			b1,	b2,	b3,	b4);
-
-	store_size(b1, avg_used);store_size(b2, min_used);
-	store_size(b3, max_used);store_size(b4, total_used);
-	printf("Used      %10s  %10s  %10s  %10s\n",
-			b1,	b2,	b3,	b4);
-
-	store_size(b1, avg_waste);store_size(b2, min_waste);
-	store_size(b3, max_waste);store_size(b4, total_waste);
-	printf("Loss      %10s  %10s  %10s  %10s\n",
-			b1,	b2,	b3,	b4);
-
-	printf("\n");
-	printf("Per Object   Average         Min         Max\n");
-	printf("---------------------------------------------\n");
-
-	store_size(b1, avg_memobj);store_size(b2, min_memobj);
-	store_size(b3, max_memobj);
-	printf("Memory    %10s  %10s  %10s\n",
-			b1,	b2,	b3);
-	store_size(b1, avg_objsize);store_size(b2, min_objsize);
-	store_size(b3, max_objsize);
-	printf("User      %10s  %10s  %10s\n",
-			b1,	b2,	b3);
-
-	store_size(b1, avg_objwaste);store_size(b2, min_objwaste);
-	store_size(b3, max_objwaste);
-	printf("Loss      %10s  %10s  %10s\n",
-			b1,	b2,	b3);
-}
-
-void sort_slabs(void)
-{
-	struct slabinfo *s1,*s2;
-
-	for (s1 = slabinfo; s1 < slabinfo + slabs; s1++) {
-		for (s2 = s1 + 1; s2 < slabinfo + slabs; s2++) {
-			int result;
-
-			if (sort_size)
-				result = slab_size(s1) < slab_size(s2);
-			else if (sort_active)
-				result = slab_activity(s1) < slab_activity(s2);
-			else
-				result = strcasecmp(s1->name, s2->name);
-
-			if (show_inverted)
-				result = -result;
-
-			if (result > 0) {
-				struct slabinfo t;
-
-				memcpy(&t, s1, sizeof(struct slabinfo));
-				memcpy(s1, s2, sizeof(struct slabinfo));
-				memcpy(s2, &t, sizeof(struct slabinfo));
-			}
-		}
-	}
-}
-
-int slab_mismatch(char *slab)
-{
-	return regexec(&pattern, slab, 0, NULL, 0);
-}
-
-void read_slab_dir(void)
-{
-	DIR *dir;
-	struct dirent *de;
-	struct slabinfo *slab = slabinfo;
-	char *t;
-
-	if (chdir("/sys/kernel/slab") && chdir("/sys/slab"))
-		fatal("SYSFS support for SLUB not active\n");
-
-	dir = opendir(".");
-	while ((de = readdir(dir))) {
-		if (de->d_name[0] == '.' ||
-			(de->d_name[0] != ':' && slab_mismatch(de->d_name)))
-				continue;
-		switch (de->d_type) {
-		   case DT_DIR:
-			if (chdir(de->d_name))
-				fatal("Unable to access slab %s\n", slab->name);
-		   	slab->name = strdup(de->d_name);
-			slab->align = get_obj("align");
-			slab->cache_dma = get_obj("cache_dma");
-			slab->destroy_by_rcu = get_obj("destroy_by_rcu");
-			slab->hwcache_align = get_obj("hwcache_align");
-			slab->object_size = get_obj("object_size");
-			slab->objects = get_obj("objects");
-			slab->total_objects = get_obj("total_objects");
-			slab->objs_per_slab = get_obj("objs_per_slab");
-			slab->order = get_obj("order");
-			slab->poison = get_obj("poison");
-			slab->reclaim_account = get_obj("reclaim_account");
-			slab->red_zone = get_obj("red_zone");
-			slab->slab_size = get_obj("slab_size");
-			slab->slabs = get_obj_and_str("slabs", &t);
-			decode_numa_list(slab->numa, t);
-			free(t);
-			slab->store_user = get_obj("store_user");
-			slab->batch = get_obj("batch");
-			slab->alloc = get_obj("alloc");
-			slab->alloc_slab_fill = get_obj("alloc_slab_fill");
-			slab->alloc_slab_new = get_obj("alloc_slab_new");
-			slab->free = get_obj("free");
-			slab->free_remote = get_obj("free_remote");
-			slab->claim_remote_list = get_obj("claim_remote_list");
-			slab->claim_remote_list_objects = get_obj("claim_remote_list_objects");
-			slab->flush_free_list = get_obj("flush_free_list");
-			slab->flush_free_list_objects = get_obj("flush_free_list_objects");
-			slab->flush_free_list_remote = get_obj("flush_free_list_remote");
-			slab->flush_rfree_list = get_obj("flush_rfree_list");
-			slab->flush_rfree_list_objects = get_obj("flush_rfree_list_objects");
-			slab->flush_slab_free = get_obj("flush_slab_free");
-			slab->flush_slab_partial = get_obj("flush_slab_partial");
-			
-			chdir("..");
-			slab++;
-			break;
-		   default :
-			fatal("Unknown file type %lx\n", de->d_type);
-		}
-	}
-	closedir(dir);
-	slabs = slab - slabinfo;
-	actual_slabs = slabs;
-	if (slabs > MAX_SLABS)
-		fatal("Too many slabs\n");
-}
-
-void output_slabs(void)
-{
-	struct slabinfo *slab;
-
-	for (slab = slabinfo; slab < slabinfo + slabs; slab++) {
-
-		if (show_numa)
-			slab_numa(slab, 0);
-		else if (show_track)
-			show_tracking(slab);
-		else if (validate)
-			slab_validate(slab);
-		else if (shrink)
-			slab_shrink(slab);
-		else if (set_debug)
-			slab_debug(slab);
-		else if (show_ops)
-			ops(slab);
-		else if (show_slab)
-			slabcache(slab);
-		else if (show_report)
-			report(slab);
-	}
-}
-
-struct option opts[] = {
-	{ "activity", 0, NULL, 'A' },
-	{ "debug", 2, NULL, 'd' },
-	{ "display-activity", 0, NULL, 'D' },
-	{ "empty", 0, NULL, 'e' },
-	{ "help", 0, NULL, 'h' },
-	{ "inverted", 0, NULL, 'i'},
-	{ "numa", 0, NULL, 'n' },
-	{ "ops", 0, NULL, 'o' },
-	{ "report", 0, NULL, 'r' },
-	{ "shrink", 0, NULL, 's' },
-	{ "slabs", 0, NULL, 'l' },
-	{ "track", 0, NULL, 't'},
-	{ "validate", 0, NULL, 'v' },
-	{ "zero", 0, NULL, 'z' },
-	{ "1ref", 0, NULL, '1'},
-	{ NULL, 0, NULL, 0 }
-};
-
-int main(int argc, char *argv[])
-{
-	int c;
-	int err;
-	char *pattern_source;
-
-	page_size = getpagesize();
-
-	while ((c = getopt_long(argc, argv, "Ad::Dehil1noprstvzTS",
-						opts, NULL)) != -1)
-		switch (c) {
-		case 'A':
-			sort_active = 1;
-			break;
-		case 'd':
-			set_debug = 1;
-			if (!debug_opt_scan(optarg))
-				fatal("Invalid debug option '%s'\n", optarg);
-			break;
-		case 'D':
-			show_activity = 1;
-			break;
-		case 'e':
-			show_empty = 1;
-			break;
-		case 'h':
-			usage();
-			return 0;
-		case 'i':
-			show_inverted = 1;
-			break;
-		case 'n':
-			show_numa = 1;
-			break;
-		case 'o':
-			show_ops = 1;
-			break;
-		case 'r':
-			show_report = 1;
-			break;
-		case 's':
-			shrink = 1;
-			break;
-		case 'l':
-			show_slab = 1;
-			break;
-		case 't':
-			show_track = 1;
-			break;
-		case 'v':
-			validate = 1;
-			break;
-		case 'z':
-			skip_zero = 0;
-			break;
-		case 'T':
-			show_totals = 1;
-			break;
-		case 'S':
-			sort_size = 1;
-			break;
-
-		default:
-			fatal("%s: Invalid option '%c'\n", argv[0], optopt);
-
-	}
-
-	if (!show_slab && !show_track && !show_report
-		&& !validate && !shrink && !set_debug && !show_ops)
-			show_slab = 1;
-
-	if (argc > optind)
-		pattern_source = argv[optind];
-	else
-		pattern_source = ".*";
-
-	err = regcomp(&pattern, pattern_source, REG_ICASE|REG_NOSUB);
-	if (err)
-		fatal("%s: Invalid pattern '%s' code %d\n",
-			argv[0], pattern_source, err);
-	read_slab_dir();
-	if (show_totals)
-		totals();
-	else {
-		sort_slabs();
-		output_slabs();
-	}
-	return 0;
-}
--- linux-mm.orig/Documentation/vm/slub.txt	2009-09-02 11:27:38.000000000 +0800
+++ linux-mm/Documentation/vm/slub.txt	2009-09-02 11:29:47.000000000 +0800
@@ -17,7 +17,7 @@ data and perform operation on the slabs.
 slabs that have data in them. See "slabinfo -h" for more options when
 running the command. slabinfo can be compiled with
 
-gcc -o slabinfo Documentation/vm/slabinfo.c
+gcc -o slabinfo tools/vm/slabinfo.c
 
 Some of the modes of operation of slabinfo require that slub debugging
 be enabled on the command line. F.e. no tracking information will be
--- linux-mm.orig/tools/vm/.gitignore	2009-09-02 11:27:38.000000000 +0800
+++ linux-mm/tools/vm/.gitignore	2009-09-02 11:29:47.000000000 +0800
@@ -1 +1,3 @@
 page-types
+slabinfo
+slqbinfo
--- linux-mm.orig/tools/vm/Makefile	2009-09-02 11:27:38.000000000 +0800
+++ linux-mm/tools/vm/Makefile	2009-09-02 11:29:47.000000000 +0800
@@ -1,5 +1,5 @@
 # List of programs to build
-hostprogs-y := page-types
+hostprogs-y := page-types slabinfo slqbinfo
 
 # Tell kbuild to always build the programs
 always := $(hostprogs-y)
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-mm/tools/vm/slabinfo.c	2009-09-02 11:29:47.000000000 +0800
@@ -0,0 +1,1364 @@
+/*
+ * Slabinfo: Tool to get reports about slabs
+ *
+ * (C) 2007 sgi, Christoph Lameter
+ *
+ * Compile by:
+ *
+ * gcc -o slabinfo slabinfo.c
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <strings.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <getopt.h>
+#include <regex.h>
+#include <errno.h>
+
+#define MAX_SLABS 500
+#define MAX_ALIASES 500
+#define MAX_NODES 1024
+
+struct slabinfo {
+	char *name;
+	int alias;
+	int refs;
+	int aliases, align, cache_dma, cpu_slabs, destroy_by_rcu;
+	int hwcache_align, object_size, objs_per_slab;
+	int sanity_checks, slab_size, store_user, trace;
+	int order, poison, reclaim_account, red_zone;
+	unsigned long partial, objects, slabs, objects_partial, objects_total;
+	unsigned long alloc_fastpath, alloc_slowpath;
+	unsigned long free_fastpath, free_slowpath;
+	unsigned long free_frozen, free_add_partial, free_remove_partial;
+	unsigned long alloc_from_partial, alloc_slab, free_slab, alloc_refill;
+	unsigned long cpuslab_flush, deactivate_full, deactivate_empty;
+	unsigned long deactivate_to_head, deactivate_to_tail;
+	unsigned long deactivate_remote_frees, order_fallback;
+	int numa[MAX_NODES];
+	int numa_partial[MAX_NODES];
+} slabinfo[MAX_SLABS];
+
+struct aliasinfo {
+	char *name;
+	char *ref;
+	struct slabinfo *slab;
+} aliasinfo[MAX_ALIASES];
+
+int slabs = 0;
+int actual_slabs = 0;
+int aliases = 0;
+int alias_targets = 0;
+int highest_node = 0;
+
+char buffer[4096];
+
+int show_empty = 0;
+int show_report = 0;
+int show_alias = 0;
+int show_slab = 0;
+int skip_zero = 1;
+int show_numa = 0;
+int show_track = 0;
+int show_first_alias = 0;
+int validate = 0;
+int shrink = 0;
+int show_inverted = 0;
+int show_single_ref = 0;
+int show_totals = 0;
+int sort_size = 0;
+int sort_active = 0;
+int set_debug = 0;
+int show_ops = 0;
+int show_activity = 0;
+
+/* Debug options */
+int sanity = 0;
+int redzone = 0;
+int poison = 0;
+int tracking = 0;
+int tracing = 0;
+
+int page_size;
+
+regex_t pattern;
+
+static void fatal(const char *x, ...)
+{
+	va_list ap;
+
+	va_start(ap, x);
+	vfprintf(stderr, x, ap);
+	va_end(ap);
+	exit(EXIT_FAILURE);
+}
+
+static void usage(void)
+{
+	printf("slabinfo 5/7/2007. (c) 2007 sgi.\n\n"
+		"slabinfo [-ahnpvtsz] [-d debugopts] [slab-regexp]\n"
+		"-a|--aliases           Show aliases\n"
+		"-A|--activity          Most active slabs first\n"
+		"-d<options>|--debug=<options> Set/Clear Debug options\n"
+		"-D|--display-active    Switch line format to activity\n"
+		"-e|--empty             Show empty slabs\n"
+		"-f|--first-alias       Show first alias\n"
+		"-h|--help              Show usage information\n"
+		"-i|--inverted          Inverted list\n"
+		"-l|--slabs             Show slabs\n"
+		"-n|--numa              Show NUMA information\n"
+		"-o|--ops		Show kmem_cache_ops\n"
+		"-s|--shrink            Shrink slabs\n"
+		"-r|--report		Detailed report on single slabs\n"
+		"-S|--Size              Sort by size\n"
+		"-t|--tracking          Show alloc/free information\n"
+		"-T|--Totals            Show summary information\n"
+		"-v|--validate          Validate slabs\n"
+		"-z|--zero              Include empty slabs\n"
+		"-1|--1ref              Single reference\n"
+		"\nValid debug options (FZPUT may be combined)\n"
+		"a / A          Switch on all debug options (=FZUP)\n"
+		"-              Switch off all debug options\n"
+		"f / F          Sanity Checks (SLAB_DEBUG_FREE)\n"
+		"z / Z          Redzoning\n"
+		"p / P          Poisoning\n"
+		"u / U          Tracking\n"
+		"t / T          Tracing\n"
+	);
+}
+
+static unsigned long read_obj(const char *name)
+{
+	FILE *f = fopen(name, "r");
+
+	if (!f)
+		buffer[0] = 0;
+	else {
+		if (!fgets(buffer, sizeof(buffer), f))
+			buffer[0] = 0;
+		fclose(f);
+		if (buffer[strlen(buffer)] == '\n')
+			buffer[strlen(buffer)] = 0;
+	}
+	return strlen(buffer);
+}
+
+
+/*
+ * Get the contents of an attribute
+ */
+static unsigned long get_obj(const char *name)
+{
+	if (!read_obj(name))
+		return 0;
+
+	return atol(buffer);
+}
+
+static unsigned long get_obj_and_str(const char *name, char **x)
+{
+	unsigned long result = 0;
+	char *p;
+
+	*x = NULL;
+
+	if (!read_obj(name)) {
+		x = NULL;
+		return 0;
+	}
+	result = strtoul(buffer, &p, 10);
+	while (*p == ' ')
+		p++;
+	if (*p)
+		*x = strdup(p);
+	return result;
+}
+
+static void set_obj(struct slabinfo *s, const char *name, int n)
+{
+	char x[100];
+	FILE *f;
+
+	snprintf(x, 100, "%s/%s", s->name, name);
+	f = fopen(x, "w");
+	if (!f)
+		fatal("Cannot write to %s\n", x);
+
+	fprintf(f, "%d\n", n);
+	fclose(f);
+}
+
+static unsigned long read_slab_obj(struct slabinfo *s, const char *name)
+{
+	char x[100];
+	FILE *f;
+	size_t l;
+
+	snprintf(x, 100, "%s/%s", s->name, name);
+	f = fopen(x, "r");
+	if (!f) {
+		buffer[0] = 0;
+		l = 0;
+	} else {
+		l = fread(buffer, 1, sizeof(buffer), f);
+		buffer[l] = 0;
+		fclose(f);
+	}
+	return l;
+}
+
+
+/*
+ * Put a size string together
+ */
+static int store_size(char *buffer, unsigned long value)
+{
+	unsigned long divisor = 1;
+	char trailer = 0;
+	int n;
+
+	if (value > 1000000000UL) {
+		divisor = 100000000UL;
+		trailer = 'G';
+	} else if (value > 1000000UL) {
+		divisor = 100000UL;
+		trailer = 'M';
+	} else if (value > 1000UL) {
+		divisor = 100;
+		trailer = 'K';
+	}
+
+	value /= divisor;
+	n = sprintf(buffer, "%ld",value);
+	if (trailer) {
+		buffer[n] = trailer;
+		n++;
+		buffer[n] = 0;
+	}
+	if (divisor != 1) {
+		memmove(buffer + n - 2, buffer + n - 3, 4);
+		buffer[n-2] = '.';
+		n++;
+	}
+	return n;
+}
+
+static void decode_numa_list(int *numa, char *t)
+{
+	int node;
+	int nr;
+
+	memset(numa, 0, MAX_NODES * sizeof(int));
+
+	if (!t)
+		return;
+
+	while (*t == 'N') {
+		t++;
+		node = strtoul(t, &t, 10);
+		if (*t == '=') {
+			t++;
+			nr = strtoul(t, &t, 10);
+			numa[node] = nr;
+			if (node > highest_node)
+				highest_node = node;
+		}
+		while (*t == ' ')
+			t++;
+	}
+}
+
+static void slab_validate(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	set_obj(s, "validate", 1);
+}
+
+static void slab_shrink(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	set_obj(s, "shrink", 1);
+}
+
+int line = 0;
+
+static void first_line(void)
+{
+	if (show_activity)
+		printf("Name                   Objects      Alloc       Free   %%Fast Fallb O\n");
+	else
+		printf("Name                   Objects Objsize    Space "
+			"Slabs/Part/Cpu  O/S O %%Fr %%Ef Flg\n");
+}
+
+/*
+ * Find the shortest alias of a slab
+ */
+static struct aliasinfo *find_one_alias(struct slabinfo *find)
+{
+	struct aliasinfo *a;
+	struct aliasinfo *best = NULL;
+
+	for(a = aliasinfo;a < aliasinfo + aliases; a++) {
+		if (a->slab == find &&
+			(!best || strlen(best->name) < strlen(a->name))) {
+				best = a;
+				if (strncmp(a->name,"kmall", 5) == 0)
+					return best;
+			}
+	}
+	return best;
+}
+
+static unsigned long slab_size(struct slabinfo *s)
+{
+	return 	s->slabs * (page_size << s->order);
+}
+
+static unsigned long slab_activity(struct slabinfo *s)
+{
+	return 	s->alloc_fastpath + s->free_fastpath +
+		s->alloc_slowpath + s->free_slowpath;
+}
+
+static void slab_numa(struct slabinfo *s, int mode)
+{
+	int node;
+
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	if (!highest_node) {
+		printf("\n%s: No NUMA information available.\n", s->name);
+		return;
+	}
+
+	if (skip_zero && !s->slabs)
+		return;
+
+	if (!line) {
+		printf("\n%-21s:", mode ? "NUMA nodes" : "Slab");
+		for(node = 0; node <= highest_node; node++)
+			printf(" %4d", node);
+		printf("\n----------------------");
+		for(node = 0; node <= highest_node; node++)
+			printf("-----");
+		printf("\n");
+	}
+	printf("%-21s ", mode ? "All slabs" : s->name);
+	for(node = 0; node <= highest_node; node++) {
+		char b[20];
+
+		store_size(b, s->numa[node]);
+		printf(" %4s", b);
+	}
+	printf("\n");
+	if (mode) {
+		printf("%-21s ", "Partial slabs");
+		for(node = 0; node <= highest_node; node++) {
+			char b[20];
+
+			store_size(b, s->numa_partial[node]);
+			printf(" %4s", b);
+		}
+		printf("\n");
+	}
+	line++;
+}
+
+static void show_tracking(struct slabinfo *s)
+{
+	printf("\n%s: Kernel object allocation\n", s->name);
+	printf("-----------------------------------------------------------------------\n");
+	if (read_slab_obj(s, "alloc_calls"))
+		printf(buffer);
+	else
+		printf("No Data\n");
+
+	printf("\n%s: Kernel object freeing\n", s->name);
+	printf("------------------------------------------------------------------------\n");
+	if (read_slab_obj(s, "free_calls"))
+		printf(buffer);
+	else
+		printf("No Data\n");
+
+}
+
+static void ops(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	if (read_slab_obj(s, "ops")) {
+		printf("\n%s: kmem_cache operations\n", s->name);
+		printf("--------------------------------------------\n");
+		printf(buffer);
+	} else
+		printf("\n%s has no kmem_cache operations\n", s->name);
+}
+
+static const char *onoff(int x)
+{
+	if (x)
+		return "On ";
+	return "Off";
+}
+
+static void slab_stats(struct slabinfo *s)
+{
+	unsigned long total_alloc;
+	unsigned long total_free;
+	unsigned long total;
+
+	if (!s->alloc_slab)
+		return;
+
+	total_alloc = s->alloc_fastpath + s->alloc_slowpath;
+	total_free = s->free_fastpath + s->free_slowpath;
+
+	if (!total_alloc)
+		return;
+
+	printf("\n");
+	printf("Slab Perf Counter       Alloc     Free %%Al %%Fr\n");
+	printf("--------------------------------------------------\n");
+	printf("Fastpath             %8lu %8lu %3lu %3lu\n",
+		s->alloc_fastpath, s->free_fastpath,
+		s->alloc_fastpath * 100 / total_alloc,
+		s->free_fastpath * 100 / total_free);
+	printf("Slowpath             %8lu %8lu %3lu %3lu\n",
+		total_alloc - s->alloc_fastpath, s->free_slowpath,
+		(total_alloc - s->alloc_fastpath) * 100 / total_alloc,
+		s->free_slowpath * 100 / total_free);
+	printf("Page Alloc           %8lu %8lu %3lu %3lu\n",
+		s->alloc_slab, s->free_slab,
+		s->alloc_slab * 100 / total_alloc,
+		s->free_slab * 100 / total_free);
+	printf("Add partial          %8lu %8lu %3lu %3lu\n",
+		s->deactivate_to_head + s->deactivate_to_tail,
+		s->free_add_partial,
+		(s->deactivate_to_head + s->deactivate_to_tail) * 100 / total_alloc,
+		s->free_add_partial * 100 / total_free);
+	printf("Remove partial       %8lu %8lu %3lu %3lu\n",
+		s->alloc_from_partial, s->free_remove_partial,
+		s->alloc_from_partial * 100 / total_alloc,
+		s->free_remove_partial * 100 / total_free);
+
+	printf("RemoteObj/SlabFrozen %8lu %8lu %3lu %3lu\n",
+		s->deactivate_remote_frees, s->free_frozen,
+		s->deactivate_remote_frees * 100 / total_alloc,
+		s->free_frozen * 100 / total_free);
+
+	printf("Total                %8lu %8lu\n\n", total_alloc, total_free);
+
+	if (s->cpuslab_flush)
+		printf("Flushes %8lu\n", s->cpuslab_flush);
+
+	if (s->alloc_refill)
+		printf("Refill %8lu\n", s->alloc_refill);
+
+	total = s->deactivate_full + s->deactivate_empty +
+			s->deactivate_to_head + s->deactivate_to_tail;
+
+	if (total)
+		printf("Deactivate Full=%lu(%lu%%) Empty=%lu(%lu%%) "
+			"ToHead=%lu(%lu%%) ToTail=%lu(%lu%%)\n",
+			s->deactivate_full, (s->deactivate_full * 100) / total,
+			s->deactivate_empty, (s->deactivate_empty * 100) / total,
+			s->deactivate_to_head, (s->deactivate_to_head * 100) / total,
+			s->deactivate_to_tail, (s->deactivate_to_tail * 100) / total);
+}
+
+static void report(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	printf("\nSlabcache: %-20s  Aliases: %2d Order : %2d Objects: %lu\n",
+		s->name, s->aliases, s->order, s->objects);
+	if (s->hwcache_align)
+		printf("** Hardware cacheline aligned\n");
+	if (s->cache_dma)
+		printf("** Memory is allocated in a special DMA zone\n");
+	if (s->destroy_by_rcu)
+		printf("** Slabs are destroyed via RCU\n");
+	if (s->reclaim_account)
+		printf("** Reclaim accounting active\n");
+
+	printf("\nSizes (bytes)     Slabs              Debug                Memory\n");
+	printf("------------------------------------------------------------------------\n");
+	printf("Object : %7d  Total  : %7ld   Sanity Checks : %s  Total: %7ld\n",
+			s->object_size, s->slabs, onoff(s->sanity_checks),
+			s->slabs * (page_size << s->order));
+	printf("SlabObj: %7d  Full   : %7ld   Redzoning     : %s  Used : %7ld\n",
+			s->slab_size, s->slabs - s->partial - s->cpu_slabs,
+			onoff(s->red_zone), s->objects * s->object_size);
+	printf("SlabSiz: %7d  Partial: %7ld   Poisoning     : %s  Loss : %7ld\n",
+			page_size << s->order, s->partial, onoff(s->poison),
+			s->slabs * (page_size << s->order) - s->objects * s->object_size);
+	printf("Loss   : %7d  CpuSlab: %7d   Tracking      : %s  Lalig: %7ld\n",
+			s->slab_size - s->object_size, s->cpu_slabs, onoff(s->store_user),
+			(s->slab_size - s->object_size) * s->objects);
+	printf("Align  : %7d  Objects: %7d   Tracing       : %s  Lpadd: %7ld\n",
+			s->align, s->objs_per_slab, onoff(s->trace),
+			((page_size << s->order) - s->objs_per_slab * s->slab_size) *
+			s->slabs);
+
+	ops(s);
+	show_tracking(s);
+	slab_numa(s, 1);
+	slab_stats(s);
+}
+
+static void slabcache(struct slabinfo *s)
+{
+	char size_str[20];
+	char dist_str[40];
+	char flags[20];
+	char *p = flags;
+
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	if (actual_slabs == 1) {
+		report(s);
+		return;
+	}
+
+	if (skip_zero && !show_empty && !s->slabs)
+		return;
+
+	if (show_empty && s->slabs)
+		return;
+
+	store_size(size_str, slab_size(s));
+	snprintf(dist_str, 40, "%lu/%lu/%d", s->slabs - s->cpu_slabs,
+						s->partial, s->cpu_slabs);
+
+	if (!line++)
+		first_line();
+
+	if (s->aliases)
+		*p++ = '*';
+	if (s->cache_dma)
+		*p++ = 'd';
+	if (s->hwcache_align)
+		*p++ = 'A';
+	if (s->poison)
+		*p++ = 'P';
+	if (s->reclaim_account)
+		*p++ = 'a';
+	if (s->red_zone)
+		*p++ = 'Z';
+	if (s->sanity_checks)
+		*p++ = 'F';
+	if (s->store_user)
+		*p++ = 'U';
+	if (s->trace)
+		*p++ = 'T';
+
+	*p = 0;
+	if (show_activity) {
+		unsigned long total_alloc;
+		unsigned long total_free;
+
+		total_alloc = s->alloc_fastpath + s->alloc_slowpath;
+		total_free = s->free_fastpath + s->free_slowpath;
+
+		printf("%-21s %8ld %10ld %10ld %3ld %3ld %5ld %1d\n",
+			s->name, s->objects,
+			total_alloc, total_free,
+			total_alloc ? (s->alloc_fastpath * 100 / total_alloc) : 0,
+			total_free ? (s->free_fastpath * 100 / total_free) : 0,
+			s->order_fallback, s->order);
+	}
+	else
+		printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s\n",
+			s->name, s->objects, s->object_size, size_str, dist_str,
+			s->objs_per_slab, s->order,
+			s->slabs ? (s->partial * 100) / s->slabs : 100,
+			s->slabs ? (s->objects * s->object_size * 100) /
+				(s->slabs * (page_size << s->order)) : 100,
+			flags);
+}
+
+/*
+ * Analyze debug options. Return false if something is amiss.
+ */
+static int debug_opt_scan(char *opt)
+{
+	if (!opt || !opt[0] || strcmp(opt, "-") == 0)
+		return 1;
+
+	if (strcasecmp(opt, "a") == 0) {
+		sanity = 1;
+		poison = 1;
+		redzone = 1;
+		tracking = 1;
+		return 1;
+	}
+
+	for ( ; *opt; opt++)
+	 	switch (*opt) {
+		case 'F' : case 'f':
+			if (sanity)
+				return 0;
+			sanity = 1;
+			break;
+		case 'P' : case 'p':
+			if (poison)
+				return 0;
+			poison = 1;
+			break;
+
+		case 'Z' : case 'z':
+			if (redzone)
+				return 0;
+			redzone = 1;
+			break;
+
+		case 'U' : case 'u':
+			if (tracking)
+				return 0;
+			tracking = 1;
+			break;
+
+		case 'T' : case 't':
+			if (tracing)
+				return 0;
+			tracing = 1;
+			break;
+		default:
+			return 0;
+		}
+	return 1;
+}
+
+static int slab_empty(struct slabinfo *s)
+{
+	if (s->objects > 0)
+		return 0;
+
+	/*
+	 * We may still have slabs even if there are no objects. Shrinking will
+	 * remove them.
+	 */
+	if (s->slabs != 0)
+		set_obj(s, "shrink", 1);
+
+	return 1;
+}
+
+static void slab_debug(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	if (sanity && !s->sanity_checks) {
+		set_obj(s, "sanity", 1);
+	}
+	if (!sanity && s->sanity_checks) {
+		if (slab_empty(s))
+			set_obj(s, "sanity", 0);
+		else
+			fprintf(stderr, "%s not empty cannot disable sanity checks\n", s->name);
+	}
+	if (redzone && !s->red_zone) {
+		if (slab_empty(s))
+			set_obj(s, "red_zone", 1);
+		else
+			fprintf(stderr, "%s not empty cannot enable redzoning\n", s->name);
+	}
+	if (!redzone && s->red_zone) {
+		if (slab_empty(s))
+			set_obj(s, "red_zone", 0);
+		else
+			fprintf(stderr, "%s not empty cannot disable redzoning\n", s->name);
+	}
+	if (poison && !s->poison) {
+		if (slab_empty(s))
+			set_obj(s, "poison", 1);
+		else
+			fprintf(stderr, "%s not empty cannot enable poisoning\n", s->name);
+	}
+	if (!poison && s->poison) {
+		if (slab_empty(s))
+			set_obj(s, "poison", 0);
+		else
+			fprintf(stderr, "%s not empty cannot disable poisoning\n", s->name);
+	}
+	if (tracking && !s->store_user) {
+		if (slab_empty(s))
+			set_obj(s, "store_user", 1);
+		else
+			fprintf(stderr, "%s not empty cannot enable tracking\n", s->name);
+	}
+	if (!tracking && s->store_user) {
+		if (slab_empty(s))
+			set_obj(s, "store_user", 0);
+		else
+			fprintf(stderr, "%s not empty cannot disable tracking\n", s->name);
+	}
+	if (tracing && !s->trace) {
+		if (slabs == 1)
+			set_obj(s, "trace", 1);
+		else
+			fprintf(stderr, "%s can only enable trace for one slab at a time\n", s->name);
+	}
+	if (!tracing && s->trace)
+		set_obj(s, "trace", 1);
+}
+
+static void totals(void)
+{
+	struct slabinfo *s;
+
+	int used_slabs = 0;
+	char b1[20], b2[20], b3[20], b4[20];
+	unsigned long long max = 1ULL << 63;
+
+	/* Object size */
+	unsigned long long min_objsize = max, max_objsize = 0, avg_objsize;
+
+	/* Number of partial slabs in a slabcache */
+	unsigned long long min_partial = max, max_partial = 0,
+				avg_partial, total_partial = 0;
+
+	/* Number of slabs in a slab cache */
+	unsigned long long min_slabs = max, max_slabs = 0,
+				avg_slabs, total_slabs = 0;
+
+	/* Size of the whole slab */
+	unsigned long long min_size = max, max_size = 0,
+				avg_size, total_size = 0;
+
+	/* Bytes used for object storage in a slab */
+	unsigned long long min_used = max, max_used = 0,
+				avg_used, total_used = 0;
+
+	/* Waste: Bytes used for alignment and padding */
+	unsigned long long min_waste = max, max_waste = 0,
+				avg_waste, total_waste = 0;
+	/* Number of objects in a slab */
+	unsigned long long min_objects = max, max_objects = 0,
+				avg_objects, total_objects = 0;
+	/* Waste per object */
+	unsigned long long min_objwaste = max,
+				max_objwaste = 0, avg_objwaste,
+				total_objwaste = 0;
+
+	/* Memory per object */
+	unsigned long long min_memobj = max,
+				max_memobj = 0, avg_memobj,
+				total_objsize = 0;
+
+	/* Percentage of partial slabs per slab */
+	unsigned long min_ppart = 100, max_ppart = 0,
+				avg_ppart, total_ppart = 0;
+
+	/* Number of objects in partial slabs */
+	unsigned long min_partobj = max, max_partobj = 0,
+				avg_partobj, total_partobj = 0;
+
+	/* Percentage of partial objects of all objects in a slab */
+	unsigned long min_ppartobj = 100, max_ppartobj = 0,
+				avg_ppartobj, total_ppartobj = 0;
+
+
+	for (s = slabinfo; s < slabinfo + slabs; s++) {
+		unsigned long long size;
+		unsigned long used;
+		unsigned long long wasted;
+		unsigned long long objwaste;
+		unsigned long percentage_partial_slabs;
+		unsigned long percentage_partial_objs;
+
+		if (!s->slabs || !s->objects)
+			continue;
+
+		used_slabs++;
+
+		size = slab_size(s);
+		used = s->objects * s->object_size;
+		wasted = size - used;
+		objwaste = s->slab_size - s->object_size;
+
+		percentage_partial_slabs = s->partial * 100 / s->slabs;
+		if (percentage_partial_slabs > 100)
+			percentage_partial_slabs = 100;
+
+		percentage_partial_objs = s->objects_partial * 100
+							/ s->objects;
+
+		if (percentage_partial_objs > 100)
+			percentage_partial_objs = 100;
+
+		if (s->object_size < min_objsize)
+			min_objsize = s->object_size;
+		if (s->partial < min_partial)
+			min_partial = s->partial;
+		if (s->slabs < min_slabs)
+			min_slabs = s->slabs;
+		if (size < min_size)
+			min_size = size;
+		if (wasted < min_waste)
+			min_waste = wasted;
+		if (objwaste < min_objwaste)
+			min_objwaste = objwaste;
+		if (s->objects < min_objects)
+			min_objects = s->objects;
+		if (used < min_used)
+			min_used = used;
+		if (s->objects_partial < min_partobj)
+			min_partobj = s->objects_partial;
+		if (percentage_partial_slabs < min_ppart)
+			min_ppart = percentage_partial_slabs;
+		if (percentage_partial_objs < min_ppartobj)
+			min_ppartobj = percentage_partial_objs;
+		if (s->slab_size < min_memobj)
+			min_memobj = s->slab_size;
+
+		if (s->object_size > max_objsize)
+			max_objsize = s->object_size;
+		if (s->partial > max_partial)
+			max_partial = s->partial;
+		if (s->slabs > max_slabs)
+			max_slabs = s->slabs;
+		if (size > max_size)
+			max_size = size;
+		if (wasted > max_waste)
+			max_waste = wasted;
+		if (objwaste > max_objwaste)
+			max_objwaste = objwaste;
+		if (s->objects > max_objects)
+			max_objects = s->objects;
+		if (used > max_used)
+			max_used = used;
+		if (s->objects_partial > max_partobj)
+			max_partobj = s->objects_partial;
+		if (percentage_partial_slabs > max_ppart)
+			max_ppart = percentage_partial_slabs;
+		if (percentage_partial_objs > max_ppartobj)
+			max_ppartobj = percentage_partial_objs;
+		if (s->slab_size > max_memobj)
+			max_memobj = s->slab_size;
+
+		total_partial += s->partial;
+		total_slabs += s->slabs;
+		total_size += size;
+		total_waste += wasted;
+
+		total_objects += s->objects;
+		total_used += used;
+		total_partobj += s->objects_partial;
+		total_ppart += percentage_partial_slabs;
+		total_ppartobj += percentage_partial_objs;
+
+		total_objwaste += s->objects * objwaste;
+		total_objsize += s->objects * s->slab_size;
+	}
+
+	if (!total_objects) {
+		printf("No objects\n");
+		return;
+	}
+	if (!used_slabs) {
+		printf("No slabs\n");
+		return;
+	}
+
+	/* Per slab averages */
+	avg_partial = total_partial / used_slabs;
+	avg_slabs = total_slabs / used_slabs;
+	avg_size = total_size / used_slabs;
+	avg_waste = total_waste / used_slabs;
+
+	avg_objects = total_objects / used_slabs;
+	avg_used = total_used / used_slabs;
+	avg_partobj = total_partobj / used_slabs;
+	avg_ppart = total_ppart / used_slabs;
+	avg_ppartobj = total_ppartobj / used_slabs;
+
+	/* Per object object sizes */
+	avg_objsize = total_used / total_objects;
+	avg_objwaste = total_objwaste / total_objects;
+	avg_partobj = total_partobj * 100 / total_objects;
+	avg_memobj = total_objsize / total_objects;
+
+	printf("Slabcache Totals\n");
+	printf("----------------\n");
+	printf("Slabcaches : %3d      Aliases  : %3d->%-3d Active: %3d\n",
+			slabs, aliases, alias_targets, used_slabs);
+
+	store_size(b1, total_size);store_size(b2, total_waste);
+	store_size(b3, total_waste * 100 / total_used);
+	printf("Memory used: %6s   # Loss   : %6s   MRatio:%6s%%\n", b1, b2, b3);
+
+	store_size(b1, total_objects);store_size(b2, total_partobj);
+	store_size(b3, total_partobj * 100 / total_objects);
+	printf("# Objects  : %6s   # PartObj: %6s   ORatio:%6s%%\n", b1, b2, b3);
+
+	printf("\n");
+	printf("Per Cache    Average         Min         Max       Total\n");
+	printf("---------------------------------------------------------\n");
+
+	store_size(b1, avg_objects);store_size(b2, min_objects);
+	store_size(b3, max_objects);store_size(b4, total_objects);
+	printf("#Objects  %10s  %10s  %10s  %10s\n",
+			b1,	b2,	b3,	b4);
+
+	store_size(b1, avg_slabs);store_size(b2, min_slabs);
+	store_size(b3, max_slabs);store_size(b4, total_slabs);
+	printf("#Slabs    %10s  %10s  %10s  %10s\n",
+			b1,	b2,	b3,	b4);
+
+	store_size(b1, avg_partial);store_size(b2, min_partial);
+	store_size(b3, max_partial);store_size(b4, total_partial);
+	printf("#PartSlab %10s  %10s  %10s  %10s\n",
+			b1,	b2,	b3,	b4);
+	store_size(b1, avg_ppart);store_size(b2, min_ppart);
+	store_size(b3, max_ppart);
+	store_size(b4, total_partial * 100  / total_slabs);
+	printf("%%PartSlab%10s%% %10s%% %10s%% %10s%%\n",
+			b1,	b2,	b3,	b4);
+
+	store_size(b1, avg_partobj);store_size(b2, min_partobj);
+	store_size(b3, max_partobj);
+	store_size(b4, total_partobj);
+	printf("PartObjs  %10s  %10s  %10s  %10s\n",
+			b1,	b2,	b3,	b4);
+
+	store_size(b1, avg_ppartobj);store_size(b2, min_ppartobj);
+	store_size(b3, max_ppartobj);
+	store_size(b4, total_partobj * 100 / total_objects);
+	printf("%% PartObj%10s%% %10s%% %10s%% %10s%%\n",
+			b1,	b2,	b3,	b4);
+
+	store_size(b1, avg_size);store_size(b2, min_size);
+	store_size(b3, max_size);store_size(b4, total_size);
+	printf("Memory    %10s  %10s  %10s  %10s\n",
+			b1,	b2,	b3,	b4);
+
+	store_size(b1, avg_used);store_size(b2, min_used);
+	store_size(b3, max_used);store_size(b4, total_used);
+	printf("Used      %10s  %10s  %10s  %10s\n",
+			b1,	b2,	b3,	b4);
+
+	store_size(b1, avg_waste);store_size(b2, min_waste);
+	store_size(b3, max_waste);store_size(b4, total_waste);
+	printf("Loss      %10s  %10s  %10s  %10s\n",
+			b1,	b2,	b3,	b4);
+
+	printf("\n");
+	printf("Per Object   Average         Min         Max\n");
+	printf("---------------------------------------------\n");
+
+	store_size(b1, avg_memobj);store_size(b2, min_memobj);
+	store_size(b3, max_memobj);
+	printf("Memory    %10s  %10s  %10s\n",
+			b1,	b2,	b3);
+	store_size(b1, avg_objsize);store_size(b2, min_objsize);
+	store_size(b3, max_objsize);
+	printf("User      %10s  %10s  %10s\n",
+			b1,	b2,	b3);
+
+	store_size(b1, avg_objwaste);store_size(b2, min_objwaste);
+	store_size(b3, max_objwaste);
+	printf("Loss      %10s  %10s  %10s\n",
+			b1,	b2,	b3);
+}
+
+static void sort_slabs(void)
+{
+	struct slabinfo *s1,*s2;
+
+	for (s1 = slabinfo; s1 < slabinfo + slabs; s1++) {
+		for (s2 = s1 + 1; s2 < slabinfo + slabs; s2++) {
+			int result;
+
+			if (sort_size)
+				result = slab_size(s1) < slab_size(s2);
+			else if (sort_active)
+				result = slab_activity(s1) < slab_activity(s2);
+			else
+				result = strcasecmp(s1->name, s2->name);
+
+			if (show_inverted)
+				result = -result;
+
+			if (result > 0) {
+				struct slabinfo t;
+
+				memcpy(&t, s1, sizeof(struct slabinfo));
+				memcpy(s1, s2, sizeof(struct slabinfo));
+				memcpy(s2, &t, sizeof(struct slabinfo));
+			}
+		}
+	}
+}
+
+static void sort_aliases(void)
+{
+	struct aliasinfo *a1,*a2;
+
+	for (a1 = aliasinfo; a1 < aliasinfo + aliases; a1++) {
+		for (a2 = a1 + 1; a2 < aliasinfo + aliases; a2++) {
+			char *n1, *n2;
+
+			n1 = a1->name;
+			n2 = a2->name;
+			if (show_alias && !show_inverted) {
+				n1 = a1->ref;
+				n2 = a2->ref;
+			}
+			if (strcasecmp(n1, n2) > 0) {
+				struct aliasinfo t;
+
+				memcpy(&t, a1, sizeof(struct aliasinfo));
+				memcpy(a1, a2, sizeof(struct aliasinfo));
+				memcpy(a2, &t, sizeof(struct aliasinfo));
+			}
+		}
+	}
+}
+
+static void link_slabs(void)
+{
+	struct aliasinfo *a;
+	struct slabinfo *s;
+
+	for (a = aliasinfo; a < aliasinfo + aliases; a++) {
+
+		for (s = slabinfo; s < slabinfo + slabs; s++)
+			if (strcmp(a->ref, s->name) == 0) {
+				a->slab = s;
+				s->refs++;
+				break;
+			}
+		if (s == slabinfo + slabs)
+			fatal("Unresolved alias %s\n", a->ref);
+	}
+}
+
+static void alias(void)
+{
+	struct aliasinfo *a;
+	char *active = NULL;
+
+	sort_aliases();
+	link_slabs();
+
+	for(a = aliasinfo; a < aliasinfo + aliases; a++) {
+
+		if (!show_single_ref && a->slab->refs == 1)
+			continue;
+
+		if (!show_inverted) {
+			if (active) {
+				if (strcmp(a->slab->name, active) == 0) {
+					printf(" %s", a->name);
+					continue;
+				}
+			}
+			printf("\n%-12s <- %s", a->slab->name, a->name);
+			active = a->slab->name;
+		}
+		else
+			printf("%-20s -> %s\n", a->name, a->slab->name);
+	}
+	if (active)
+		printf("\n");
+}
+
+
+static void rename_slabs(void)
+{
+	struct slabinfo *s;
+	struct aliasinfo *a;
+
+	for (s = slabinfo; s < slabinfo + slabs; s++) {
+		if (*s->name != ':')
+			continue;
+
+		if (s->refs > 1 && !show_first_alias)
+			continue;
+
+		a = find_one_alias(s);
+
+		if (a)
+			s->name = a->name;
+		else {
+			s->name = "*";
+			actual_slabs--;
+		}
+	}
+}
+
+static int slab_mismatch(char *slab)
+{
+	return regexec(&pattern, slab, 0, NULL, 0);
+}
+
+static void read_slab_dir(void)
+{
+	DIR *dir;
+	struct dirent *de;
+	struct slabinfo *slab = slabinfo;
+	struct aliasinfo *alias = aliasinfo;
+	char *p;
+	char *t;
+	int count;
+
+	if (chdir("/sys/kernel/slab") && chdir("/sys/slab"))
+		fatal("SYSFS support for SLUB not active\n");
+
+	dir = opendir(".");
+	while ((de = readdir(dir))) {
+		if (de->d_name[0] == '.' ||
+			(de->d_name[0] != ':' && slab_mismatch(de->d_name)))
+				continue;
+		switch (de->d_type) {
+		   case DT_LNK:
+		   	alias->name = strdup(de->d_name);
+			count = readlink(de->d_name, buffer, sizeof(buffer));
+
+			if (count < 0)
+				fatal("Cannot read symlink %s\n", de->d_name);
+
+			buffer[count] = 0;
+			p = buffer + count;
+			while (p > buffer && p[-1] != '/')
+				p--;
+			alias->ref = strdup(p);
+			alias++;
+			break;
+		   case DT_DIR:
+			if (chdir(de->d_name))
+				fatal("Unable to access slab %s\n", slab->name);
+		   	slab->name = strdup(de->d_name);
+			slab->alias = 0;
+			slab->refs = 0;
+			slab->aliases = get_obj("aliases");
+			slab->align = get_obj("align");
+			slab->cache_dma = get_obj("cache_dma");
+			slab->cpu_slabs = get_obj("cpu_slabs");
+			slab->destroy_by_rcu = get_obj("destroy_by_rcu");
+			slab->hwcache_align = get_obj("hwcache_align");
+			slab->object_size = get_obj("object_size");
+			slab->objects = get_obj("objects");
+			slab->objects_partial = get_obj("objects_partial");
+			slab->objects_total = get_obj("objects_total");
+			slab->objs_per_slab = get_obj("objs_per_slab");
+			slab->order = get_obj("order");
+			slab->partial = get_obj("partial");
+			slab->partial = get_obj_and_str("partial", &t);
+			decode_numa_list(slab->numa_partial, t);
+			free(t);
+			slab->poison = get_obj("poison");
+			slab->reclaim_account = get_obj("reclaim_account");
+			slab->red_zone = get_obj("red_zone");
+			slab->sanity_checks = get_obj("sanity_checks");
+			slab->slab_size = get_obj("slab_size");
+			slab->slabs = get_obj_and_str("slabs", &t);
+			decode_numa_list(slab->numa, t);
+			free(t);
+			slab->store_user = get_obj("store_user");
+			slab->trace = get_obj("trace");
+			slab->alloc_fastpath = get_obj("alloc_fastpath");
+			slab->alloc_slowpath = get_obj("alloc_slowpath");
+			slab->free_fastpath = get_obj("free_fastpath");
+			slab->free_slowpath = get_obj("free_slowpath");
+			slab->free_frozen= get_obj("free_frozen");
+			slab->free_add_partial = get_obj("free_add_partial");
+			slab->free_remove_partial = get_obj("free_remove_partial");
+			slab->alloc_from_partial = get_obj("alloc_from_partial");
+			slab->alloc_slab = get_obj("alloc_slab");
+			slab->alloc_refill = get_obj("alloc_refill");
+			slab->free_slab = get_obj("free_slab");
+			slab->cpuslab_flush = get_obj("cpuslab_flush");
+			slab->deactivate_full = get_obj("deactivate_full");
+			slab->deactivate_empty = get_obj("deactivate_empty");
+			slab->deactivate_to_head = get_obj("deactivate_to_head");
+			slab->deactivate_to_tail = get_obj("deactivate_to_tail");
+			slab->deactivate_remote_frees = get_obj("deactivate_remote_frees");
+			slab->order_fallback = get_obj("order_fallback");
+			chdir("..");
+			if (slab->name[0] == ':')
+				alias_targets++;
+			slab++;
+			break;
+		   default :
+			fatal("Unknown file type %lx\n", de->d_type);
+		}
+	}
+	closedir(dir);
+	slabs = slab - slabinfo;
+	actual_slabs = slabs;
+	aliases = alias - aliasinfo;
+	if (slabs > MAX_SLABS)
+		fatal("Too many slabs\n");
+	if (aliases > MAX_ALIASES)
+		fatal("Too many aliases\n");
+}
+
+static void output_slabs(void)
+{
+	struct slabinfo *slab;
+
+	for (slab = slabinfo; slab < slabinfo + slabs; slab++) {
+
+		if (slab->alias)
+			continue;
+
+
+		if (show_numa)
+			slab_numa(slab, 0);
+		else if (show_track)
+			show_tracking(slab);
+		else if (validate)
+			slab_validate(slab);
+		else if (shrink)
+			slab_shrink(slab);
+		else if (set_debug)
+			slab_debug(slab);
+		else if (show_ops)
+			ops(slab);
+		else if (show_slab)
+			slabcache(slab);
+		else if (show_report)
+			report(slab);
+	}
+}
+
+struct option opts[] = {
+	{ "aliases", 0, NULL, 'a' },
+	{ "activity", 0, NULL, 'A' },
+	{ "debug", 2, NULL, 'd' },
+	{ "display-activity", 0, NULL, 'D' },
+	{ "empty", 0, NULL, 'e' },
+	{ "first-alias", 0, NULL, 'f' },
+	{ "help", 0, NULL, 'h' },
+	{ "inverted", 0, NULL, 'i'},
+	{ "numa", 0, NULL, 'n' },
+	{ "ops", 0, NULL, 'o' },
+	{ "report", 0, NULL, 'r' },
+	{ "shrink", 0, NULL, 's' },
+	{ "slabs", 0, NULL, 'l' },
+	{ "track", 0, NULL, 't'},
+	{ "validate", 0, NULL, 'v' },
+	{ "zero", 0, NULL, 'z' },
+	{ "1ref", 0, NULL, '1'},
+	{ NULL, 0, NULL, 0 }
+};
+
+int main(int argc, char *argv[])
+{
+	int c;
+	int err;
+	char *pattern_source;
+
+	page_size = getpagesize();
+
+	while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTS",
+						opts, NULL)) != -1)
+		switch (c) {
+		case '1':
+			show_single_ref = 1;
+			break;
+		case 'a':
+			show_alias = 1;
+			break;
+		case 'A':
+			sort_active = 1;
+			break;
+		case 'd':
+			set_debug = 1;
+			if (!debug_opt_scan(optarg))
+				fatal("Invalid debug option '%s'\n", optarg);
+			break;
+		case 'D':
+			show_activity = 1;
+			break;
+		case 'e':
+			show_empty = 1;
+			break;
+		case 'f':
+			show_first_alias = 1;
+			break;
+		case 'h':
+			usage();
+			return 0;
+		case 'i':
+			show_inverted = 1;
+			break;
+		case 'n':
+			show_numa = 1;
+			break;
+		case 'o':
+			show_ops = 1;
+			break;
+		case 'r':
+			show_report = 1;
+			break;
+		case 's':
+			shrink = 1;
+			break;
+		case 'l':
+			show_slab = 1;
+			break;
+		case 't':
+			show_track = 1;
+			break;
+		case 'v':
+			validate = 1;
+			break;
+		case 'z':
+			skip_zero = 0;
+			break;
+		case 'T':
+			show_totals = 1;
+			break;
+		case 'S':
+			sort_size = 1;
+			break;
+
+		default:
+			fatal("%s: Invalid option '%c'\n", argv[0], optopt);
+
+	}
+
+	if (!show_slab && !show_alias && !show_track && !show_report
+		&& !validate && !shrink && !set_debug && !show_ops)
+			show_slab = 1;
+
+	if (argc > optind)
+		pattern_source = argv[optind];
+	else
+		pattern_source = ".*";
+
+	err = regcomp(&pattern, pattern_source, REG_ICASE|REG_NOSUB);
+	if (err)
+		fatal("%s: Invalid pattern '%s' code %d\n",
+			argv[0], pattern_source, err);
+	read_slab_dir();
+	if (show_alias)
+		alias();
+	else
+	if (show_totals)
+		totals();
+	else {
+		link_slabs();
+		rename_slabs();
+		sort_slabs();
+		output_slabs();
+	}
+	return 0;
+}
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-mm/tools/vm/slqbinfo.c	2009-09-02 11:29:47.000000000 +0800
@@ -0,0 +1,1047 @@
+/*
+ * Slabinfo: Tool to get reports about slabs
+ *
+ * (C) 2007 sgi, Christoph Lameter
+ *
+ * Reworked by Lin Ming <ming.m.lin@intel.com> for SLQB
+ *
+ * Compile by:
+ *
+ * gcc -o slabinfo slabinfo.c
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <strings.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <getopt.h>
+#include <regex.h>
+#include <errno.h>
+
+#define MAX_SLABS 500
+#define MAX_ALIASES 500
+#define MAX_NODES 1024
+
+struct slabinfo {
+	char *name;
+	int align, cache_dma, destroy_by_rcu;
+	int hwcache_align, object_size, objs_per_slab;
+	int slab_size, store_user;
+	int order, poison, reclaim_account, red_zone;
+	int batch;
+	unsigned long objects, slabs, total_objects;
+	unsigned long alloc, alloc_slab_fill, alloc_slab_new;
+	unsigned long free, free_remote;
+	unsigned long claim_remote_list, claim_remote_list_objects;
+	unsigned long flush_free_list, flush_free_list_objects, flush_free_list_remote;
+	unsigned long flush_rfree_list, flush_rfree_list_objects;
+	unsigned long flush_slab_free, flush_slab_partial;
+	int numa[MAX_NODES];
+	int numa_partial[MAX_NODES];
+} slabinfo[MAX_SLABS];
+
+int slabs = 0;
+int actual_slabs = 0;
+int highest_node = 0;
+
+char buffer[4096];
+
+int show_empty = 0;
+int show_report = 0;
+int show_slab = 0;
+int skip_zero = 1;
+int show_numa = 0;
+int show_track = 0;
+int validate = 0;
+int shrink = 0;
+int show_inverted = 0;
+int show_totals = 0;
+int sort_size = 0;
+int sort_active = 0;
+int set_debug = 0;
+int show_ops = 0;
+int show_activity = 0;
+
+/* Debug options */
+int sanity = 0;
+int redzone = 0;
+int poison = 0;
+int tracking = 0;
+int tracing = 0;
+
+int page_size;
+
+regex_t pattern;
+
+void fatal(const char *x, ...)
+{
+	va_list ap;
+
+	va_start(ap, x);
+	vfprintf(stderr, x, ap);
+	va_end(ap);
+	exit(EXIT_FAILURE);
+}
+
+void usage(void)
+{
+	printf("slabinfo 5/7/2007. (c) 2007 sgi.\n\n"
+		"slabinfo [-ahnpvtsz] [-d debugopts] [slab-regexp]\n"
+		"-A|--activity          Most active slabs first\n"
+		"-d<options>|--debug=<options> Set/Clear Debug options\n"
+		"-D|--display-active    Switch line format to activity\n"
+		"-e|--empty             Show empty slabs\n"
+		"-h|--help              Show usage information\n"
+		"-i|--inverted          Inverted list\n"
+		"-l|--slabs             Show slabs\n"
+		"-n|--numa              Show NUMA information\n"
+		"-o|--ops		Show kmem_cache_ops\n"
+		"-s|--shrink            Shrink slabs\n"
+		"-r|--report		Detailed report on single slabs\n"
+		"-S|--Size              Sort by size\n"
+		"-t|--tracking          Show alloc/free information\n"
+		"-T|--Totals            Show summary information\n"
+		"-v|--validate          Validate slabs\n"
+		"-z|--zero              Include empty slabs\n"
+		"\nValid debug options (FZPUT may be combined)\n"
+		"a / A          Switch on all debug options (=FZUP)\n"
+		"-              Switch off all debug options\n"
+		"f / F          Sanity Checks (SLAB_DEBUG_FREE)\n"
+		"z / Z          Redzoning\n"
+		"p / P          Poisoning\n"
+		"u / U          Tracking\n"
+		"t / T          Tracing\n"
+	);
+}
+
+unsigned long read_obj(const char *name)
+{
+	FILE *f = fopen(name, "r");
+
+	if (!f)
+		buffer[0] = 0;
+	else {
+		if (!fgets(buffer, sizeof(buffer), f))
+			buffer[0] = 0;
+		fclose(f);
+		if (buffer[strlen(buffer)] == '\n')
+			buffer[strlen(buffer)] = 0;
+	}
+	return strlen(buffer);
+}
+
+
+/*
+ * Get the contents of an attribute
+ */
+unsigned long get_obj(const char *name)
+{
+	if (!read_obj(name))
+		return 0;
+
+	return atol(buffer);
+}
+
+unsigned long get_obj_and_str(const char *name, char **x)
+{
+	unsigned long result = 0;
+	char *p;
+
+	*x = NULL;
+
+	if (!read_obj(name)) {
+		x = NULL;
+		return 0;
+	}
+	result = strtoul(buffer, &p, 10);
+	while (*p == ' ')
+		p++;
+	if (*p)
+		*x = strdup(p);
+	return result;
+}
+
+void set_obj(struct slabinfo *s, const char *name, int n)
+{
+	char x[100];
+	FILE *f;
+
+	snprintf(x, 100, "%s/%s", s->name, name);
+	f = fopen(x, "w");
+	if (!f)
+		fatal("Cannot write to %s\n", x);
+
+	fprintf(f, "%d\n", n);
+	fclose(f);
+}
+
+unsigned long read_slab_obj(struct slabinfo *s, const char *name)
+{
+	char x[100];
+	FILE *f;
+	size_t l;
+
+	snprintf(x, 100, "%s/%s", s->name, name);
+	f = fopen(x, "r");
+	if (!f) {
+		buffer[0] = 0;
+		l = 0;
+	} else {
+		l = fread(buffer, 1, sizeof(buffer), f);
+		buffer[l] = 0;
+		fclose(f);
+	}
+	return l;
+}
+
+
+/*
+ * Put a size string together
+ */
+int store_size(char *buffer, unsigned long value)
+{
+	unsigned long divisor = 1;
+	char trailer = 0;
+	int n;
+
+	if (value > 1000000000UL) {
+		divisor = 100000000UL;
+		trailer = 'G';
+	} else if (value > 1000000UL) {
+		divisor = 100000UL;
+		trailer = 'M';
+	} else if (value > 1000UL) {
+		divisor = 100;
+		trailer = 'K';
+	}
+
+	value /= divisor;
+	n = sprintf(buffer, "%ld",value);
+	if (trailer) {
+		buffer[n] = trailer;
+		n++;
+		buffer[n] = 0;
+	}
+	if (divisor != 1) {
+		memmove(buffer + n - 2, buffer + n - 3, 4);
+		buffer[n-2] = '.';
+		n++;
+	}
+	return n;
+}
+
+void decode_numa_list(int *numa, char *t)
+{
+	int node;
+	int nr;
+
+	memset(numa, 0, MAX_NODES * sizeof(int));
+
+	if (!t)
+		return;
+
+	while (*t == 'N') {
+		t++;
+		node = strtoul(t, &t, 10);
+		if (*t == '=') {
+			t++;
+			nr = strtoul(t, &t, 10);
+			numa[node] = nr;
+			if (node > highest_node)
+				highest_node = node;
+		}
+		while (*t == ' ')
+			t++;
+	}
+}
+
+void slab_validate(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	set_obj(s, "validate", 1);
+}
+
+void slab_shrink(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	set_obj(s, "shrink", 1);
+}
+
+int line = 0;
+
+void first_line(void)
+{
+	if (show_activity)
+		printf("Name                   Objects      Alloc       Free   %%Fill %%New  "
+			"FlushR %%FlushR FlushR_Objs O\n");
+	else
+		printf("Name                   Objects Objsize    Space "
+			" O/S O %%Ef Batch Flg\n");
+}
+
+unsigned long slab_size(struct slabinfo *s)
+{
+	return 	s->slabs * (page_size << s->order);
+}
+
+unsigned long slab_activity(struct slabinfo *s)
+{
+	return 	s->alloc + s->free;
+}
+
+void slab_numa(struct slabinfo *s, int mode)
+{
+	int node;
+
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	if (!highest_node) {
+		printf("\n%s: No NUMA information available.\n", s->name);
+		return;
+	}
+
+	if (skip_zero && !s->slabs)
+		return;
+
+	if (!line) {
+		printf("\n%-21s:", mode ? "NUMA nodes" : "Slab");
+		for(node = 0; node <= highest_node; node++)
+			printf(" %4d", node);
+		printf("\n----------------------");
+		for(node = 0; node <= highest_node; node++)
+			printf("-----");
+		printf("\n");
+	}
+	printf("%-21s ", mode ? "All slabs" : s->name);
+	for(node = 0; node <= highest_node; node++) {
+		char b[20];
+
+		store_size(b, s->numa[node]);
+		printf(" %4s", b);
+	}
+	printf("\n");
+	if (mode) {
+		printf("%-21s ", "Partial slabs");
+		for(node = 0; node <= highest_node; node++) {
+			char b[20];
+
+			store_size(b, s->numa_partial[node]);
+			printf(" %4s", b);
+		}
+		printf("\n");
+	}
+	line++;
+}
+
+void show_tracking(struct slabinfo *s)
+{
+	printf("\n%s: Kernel object allocation\n", s->name);
+	printf("-----------------------------------------------------------------------\n");
+	if (read_slab_obj(s, "alloc_calls"))
+		printf(buffer);
+	else
+		printf("No Data\n");
+
+	printf("\n%s: Kernel object freeing\n", s->name);
+	printf("------------------------------------------------------------------------\n");
+	if (read_slab_obj(s, "free_calls"))
+		printf(buffer);
+	else
+		printf("No Data\n");
+
+}
+
+void ops(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	if (read_slab_obj(s, "ops")) {
+		printf("\n%s: kmem_cache operations\n", s->name);
+		printf("--------------------------------------------\n");
+		printf(buffer);
+	} else
+		printf("\n%s has no kmem_cache operations\n", s->name);
+}
+
+const char *onoff(int x)
+{
+	if (x)
+		return "On ";
+	return "Off";
+}
+
+void slab_stats(struct slabinfo *s)
+{
+	unsigned long total_alloc;
+	unsigned long total_free;
+
+	total_alloc = s->alloc;
+	total_free = s->free;
+
+	if (!total_alloc)
+		return;
+
+	printf("\n");
+	printf("Slab Perf Counter\n");
+	printf("------------------------------------------------------------------------\n");
+	printf("Alloc: %8lu, partial %8lu, page allocator %8lu\n",
+		total_alloc,
+		s->alloc_slab_fill, s->alloc_slab_new);
+	printf("Free:  %8lu, partial %8lu, page allocator %8lu, remote %5lu\n",
+		total_free,
+		s->flush_slab_partial,
+		s->flush_slab_free,
+		s->free_remote);
+	printf("Claim: %8lu, objects %8lu\n",
+		s->claim_remote_list,
+		s->claim_remote_list_objects);
+	printf("Flush: %8lu, objects %8lu, remote: %8lu\n",
+		s->flush_free_list,
+		s->flush_free_list_objects,
+		s->flush_free_list_remote);
+	printf("FlushR:%8lu, objects %8lu\n",
+		s->flush_rfree_list,
+		s->flush_rfree_list_objects);
+}
+
+void report(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	printf("\nSlabcache: %-20s  Order : %2d Objects: %lu\n",
+		s->name, s->order, s->objects);
+	if (s->hwcache_align)
+		printf("** Hardware cacheline aligned\n");
+	if (s->cache_dma)
+		printf("** Memory is allocated in a special DMA zone\n");
+	if (s->destroy_by_rcu)
+		printf("** Slabs are destroyed via RCU\n");
+	if (s->reclaim_account)
+		printf("** Reclaim accounting active\n");
+
+	printf("\nSizes (bytes)     Slabs              Debug                Memory\n");
+	printf("------------------------------------------------------------------------\n");
+	printf("Object : %7d  Total  : %7ld   Sanity Checks : %s  Total: %7ld\n",
+			s->object_size, s->slabs, "N/A",
+			s->slabs * (page_size << s->order));
+	printf("SlabObj: %7d  Full   : %7s   Redzoning     : %s  Used : %7ld\n",
+			s->slab_size, "N/A",
+			onoff(s->red_zone), s->objects * s->object_size);
+	printf("SlabSiz: %7d  Partial: %7s   Poisoning     : %s  Loss : %7ld\n",
+			page_size << s->order, "N/A", onoff(s->poison),
+			s->slabs * (page_size << s->order) - s->objects * s->object_size);
+	printf("Loss   : %7d  CpuSlab: %7s   Tracking      : %s  Lalig: %7ld\n",
+			s->slab_size - s->object_size, "N/A", onoff(s->store_user),
+			(s->slab_size - s->object_size) * s->objects);
+	printf("Align  : %7d  Objects: %7d   Tracing       : %s  Lpadd: %7ld\n",
+			s->align, s->objs_per_slab, "N/A",
+			((page_size << s->order) - s->objs_per_slab * s->slab_size) *
+			s->slabs);
+
+	ops(s);
+	show_tracking(s);
+	slab_numa(s, 1);
+	slab_stats(s);
+}
+
+void slabcache(struct slabinfo *s)
+{
+	char size_str[20];
+	char flags[20];
+	char *p = flags;
+
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	if (actual_slabs == 1) {
+		report(s);
+		return;
+	}
+
+	if (skip_zero && !show_empty && !s->slabs)
+		return;
+
+	if (show_empty && s->slabs)
+		return;
+
+	store_size(size_str, slab_size(s));
+
+	if (!line++)
+		first_line();
+
+	if (s->cache_dma)
+		*p++ = 'd';
+	if (s->hwcache_align)
+		*p++ = 'A';
+	if (s->poison)
+		*p++ = 'P';
+	if (s->reclaim_account)
+		*p++ = 'a';
+	if (s->red_zone)
+		*p++ = 'Z';
+	if (s->store_user)
+		*p++ = 'U';
+
+	*p = 0;
+	if (show_activity) {
+		unsigned long total_alloc;
+		unsigned long total_free;
+
+		total_alloc = s->alloc;
+		total_free = s->free;
+
+		printf("%-21s %8ld %10ld %10ld %5ld %5ld %7ld %5ld %7ld %8d\n",
+			s->name, s->objects,
+			total_alloc, total_free,
+			total_alloc ? (s->alloc_slab_fill * 100 / total_alloc) : 0,
+			total_alloc ? (s->alloc_slab_new * 100 / total_alloc) : 0,
+			s->flush_rfree_list,
+			s->flush_rfree_list * 100 / (total_alloc + total_free),
+			s->flush_rfree_list_objects,
+			s->order);
+	}
+	else
+		printf("%-21s %8ld %7d %8s %4d %1d %3ld %4d %s\n",
+			s->name, s->objects, s->object_size, size_str,
+			s->objs_per_slab, s->order,
+			s->slabs ? (s->objects * s->object_size * 100) /
+				(s->slabs * (page_size << s->order)) : 100,
+			s->batch, flags);
+}
+
+/*
+ * Analyze debug options. Return false if something is amiss.
+ */
+int debug_opt_scan(char *opt)
+{
+	if (!opt || !opt[0] || strcmp(opt, "-") == 0)
+		return 1;
+
+	if (strcasecmp(opt, "a") == 0) {
+		sanity = 1;
+		poison = 1;
+		redzone = 1;
+		tracking = 1;
+		return 1;
+	}
+
+	for ( ; *opt; opt++)
+	 	switch (*opt) {
+		case 'F' : case 'f':
+			if (sanity)
+				return 0;
+			sanity = 1;
+			break;
+		case 'P' : case 'p':
+			if (poison)
+				return 0;
+			poison = 1;
+			break;
+
+		case 'Z' : case 'z':
+			if (redzone)
+				return 0;
+			redzone = 1;
+			break;
+
+		case 'U' : case 'u':
+			if (tracking)
+				return 0;
+			tracking = 1;
+			break;
+
+		case 'T' : case 't':
+			if (tracing)
+				return 0;
+			tracing = 1;
+			break;
+		default:
+			return 0;
+		}
+	return 1;
+}
+
+int slab_empty(struct slabinfo *s)
+{
+	if (s->objects > 0)
+		return 0;
+
+	/*
+	 * We may still have slabs even if there are no objects. Shrinking will
+	 * remove them.
+	 */
+	if (s->slabs != 0)
+		set_obj(s, "shrink", 1);
+
+	return 1;
+}
+
+void slab_debug(struct slabinfo *s)
+{
+	if (strcmp(s->name, "*") == 0)
+		return;
+
+	if (redzone && !s->red_zone) {
+		if (slab_empty(s))
+			set_obj(s, "red_zone", 1);
+		else
+			fprintf(stderr, "%s not empty cannot enable redzoning\n", s->name);
+	}
+	if (!redzone && s->red_zone) {
+		if (slab_empty(s))
+			set_obj(s, "red_zone", 0);
+		else
+			fprintf(stderr, "%s not empty cannot disable redzoning\n", s->name);
+	}
+	if (poison && !s->poison) {
+		if (slab_empty(s))
+			set_obj(s, "poison", 1);
+		else
+			fprintf(stderr, "%s not empty cannot enable poisoning\n", s->name);
+	}
+	if (!poison && s->poison) {
+		if (slab_empty(s))
+			set_obj(s, "poison", 0);
+		else
+			fprintf(stderr, "%s not empty cannot disable poisoning\n", s->name);
+	}
+	if (tracking && !s->store_user) {
+		if (slab_empty(s))
+			set_obj(s, "store_user", 1);
+		else
+			fprintf(stderr, "%s not empty cannot enable tracking\n", s->name);
+	}
+	if (!tracking && s->store_user) {
+		if (slab_empty(s))
+			set_obj(s, "store_user", 0);
+		else
+			fprintf(stderr, "%s not empty cannot disable tracking\n", s->name);
+	}
+}
+
+void totals(void)
+{
+	struct slabinfo *s;
+
+	int used_slabs = 0;
+	char b1[20], b2[20], b3[20], b4[20];
+	unsigned long long max = 1ULL << 63;
+
+	/* Object size */
+	unsigned long long min_objsize = max, max_objsize = 0, avg_objsize;
+
+	/* Number of slabs in a slab cache */
+	unsigned long long min_slabs = max, max_slabs = 0,
+				avg_slabs, total_slabs = 0;
+
+	/* Size of the whole slab */
+	unsigned long long min_size = max, max_size = 0,
+				avg_size, total_size = 0;
+
+	/* Bytes used for object storage in a slab */
+	unsigned long long min_used = max, max_used = 0,
+				avg_used, total_used = 0;
+
+	/* Waste: Bytes used for alignment and padding */
+	unsigned long long min_waste = max, max_waste = 0,
+				avg_waste, total_waste = 0;
+	/* Number of objects in a slab */
+	unsigned long long min_objects = max, max_objects = 0,
+				avg_objects, total_objects = 0;
+	/* Waste per object */
+	unsigned long long min_objwaste = max,
+				max_objwaste = 0, avg_objwaste,
+				total_objwaste = 0;
+
+	/* Memory per object */
+	unsigned long long min_memobj = max,
+				max_memobj = 0, avg_memobj,
+				total_objsize = 0;
+
+	for (s = slabinfo; s < slabinfo + slabs; s++) {
+		unsigned long long size;
+		unsigned long used;
+		unsigned long long wasted;
+		unsigned long long objwaste;
+
+		if (!s->slabs || !s->objects)
+			continue;
+
+		used_slabs++;
+
+		size = slab_size(s);
+		used = s->objects * s->object_size;
+		wasted = size - used;
+		objwaste = s->slab_size - s->object_size;
+
+		if (s->object_size < min_objsize)
+			min_objsize = s->object_size;
+		if (s->slabs < min_slabs)
+			min_slabs = s->slabs;
+		if (size < min_size)
+			min_size = size;
+		if (wasted < min_waste)
+			min_waste = wasted;
+		if (objwaste < min_objwaste)
+			min_objwaste = objwaste;
+		if (s->objects < min_objects)
+			min_objects = s->objects;
+		if (used < min_used)
+			min_used = used;
+		if (s->slab_size < min_memobj)
+			min_memobj = s->slab_size;
+
+		if (s->object_size > max_objsize)
+			max_objsize = s->object_size;
+		if (s->slabs > max_slabs)
+			max_slabs = s->slabs;
+		if (size > max_size)
+			max_size = size;
+		if (wasted > max_waste)
+			max_waste = wasted;
+		if (objwaste > max_objwaste)
+			max_objwaste = objwaste;
+		if (s->objects > max_objects)
+			max_objects = s->objects;
+		if (used > max_used)
+			max_used = used;
+		if (s->slab_size > max_memobj)
+			max_memobj = s->slab_size;
+
+		total_slabs += s->slabs;
+		total_size += size;
+		total_waste += wasted;
+
+		total_objects += s->objects;
+		total_used += used;
+
+		total_objwaste += s->objects * objwaste;
+		total_objsize += s->objects * s->slab_size;
+	}
+
+	if (!total_objects) {
+		printf("No objects\n");
+		return;
+	}
+	if (!used_slabs) {
+		printf("No slabs\n");
+		return;
+	}
+
+	/* Per slab averages */
+	avg_slabs = total_slabs / used_slabs;
+	avg_size = total_size / used_slabs;
+	avg_waste = total_waste / used_slabs;
+
+	avg_objects = total_objects / used_slabs;
+	avg_used = total_used / used_slabs;
+
+	/* Per object object sizes */
+	avg_objsize = total_used / total_objects;
+	avg_objwaste = total_objwaste / total_objects;
+	avg_memobj = total_objsize / total_objects;
+
+	printf("Slabcache Totals\n");
+	printf("----------------\n");
+	printf("Slabcaches : %3d      Active: %3d\n",
+			slabs, used_slabs);
+
+	store_size(b1, total_size);store_size(b2, total_waste);
+	store_size(b3, total_waste * 100 / total_used);
+	printf("Memory used: %6s   # Loss   : %6s   MRatio:%6s%%\n", b1, b2, b3);
+
+	store_size(b1, total_objects);
+	printf("# Objects  : %6s\n", b1);
+
+	printf("\n");
+	printf("Per Cache    Average         Min         Max       Total\n");
+	printf("---------------------------------------------------------\n");
+
+	store_size(b1, avg_objects);store_size(b2, min_objects);
+	store_size(b3, max_objects);store_size(b4, total_objects);
+	printf("#Objects  %10s  %10s  %10s  %10s\n",
+			b1,	b2,	b3,	b4);
+
+	store_size(b1, avg_slabs);store_size(b2, min_slabs);
+	store_size(b3, max_slabs);store_size(b4, total_slabs);
+	printf("#Slabs    %10s  %10s  %10s  %10s\n",
+			b1,	b2,	b3,	b4);
+
+	store_size(b1, avg_size);store_size(b2, min_size);
+	store_size(b3, max_size);store_size(b4, total_size);
+	printf("Memory    %10s  %10s  %10s  %10s\n",
+			b1,	b2,	b3,	b4);
+
+	store_size(b1, avg_used);store_size(b2, min_used);
+	store_size(b3, max_used);store_size(b4, total_used);
+	printf("Used      %10s  %10s  %10s  %10s\n",
+			b1,	b2,	b3,	b4);
+
+	store_size(b1, avg_waste);store_size(b2, min_waste);
+	store_size(b3, max_waste);store_size(b4, total_waste);
+	printf("Loss      %10s  %10s  %10s  %10s\n",
+			b1,	b2,	b3,	b4);
+
+	printf("\n");
+	printf("Per Object   Average         Min         Max\n");
+	printf("---------------------------------------------\n");
+
+	store_size(b1, avg_memobj);store_size(b2, min_memobj);
+	store_size(b3, max_memobj);
+	printf("Memory    %10s  %10s  %10s\n",
+			b1,	b2,	b3);
+	store_size(b1, avg_objsize);store_size(b2, min_objsize);
+	store_size(b3, max_objsize);
+	printf("User      %10s  %10s  %10s\n",
+			b1,	b2,	b3);
+
+	store_size(b1, avg_objwaste);store_size(b2, min_objwaste);
+	store_size(b3, max_objwaste);
+	printf("Loss      %10s  %10s  %10s\n",
+			b1,	b2,	b3);
+}
+
+void sort_slabs(void)
+{
+	struct slabinfo *s1,*s2;
+
+	for (s1 = slabinfo; s1 < slabinfo + slabs; s1++) {
+		for (s2 = s1 + 1; s2 < slabinfo + slabs; s2++) {
+			int result;
+
+			if (sort_size)
+				result = slab_size(s1) < slab_size(s2);
+			else if (sort_active)
+				result = slab_activity(s1) < slab_activity(s2);
+			else
+				result = strcasecmp(s1->name, s2->name);
+
+			if (show_inverted)
+				result = -result;
+
+			if (result > 0) {
+				struct slabinfo t;
+
+				memcpy(&t, s1, sizeof(struct slabinfo));
+				memcpy(s1, s2, sizeof(struct slabinfo));
+				memcpy(s2, &t, sizeof(struct slabinfo));
+			}
+		}
+	}
+}
+
+int slab_mismatch(char *slab)
+{
+	return regexec(&pattern, slab, 0, NULL, 0);
+}
+
+void read_slab_dir(void)
+{
+	DIR *dir;
+	struct dirent *de;
+	struct slabinfo *slab = slabinfo;
+	char *t;
+
+	if (chdir("/sys/kernel/slab") && chdir("/sys/slab"))
+		fatal("SYSFS support for SLUB not active\n");
+
+	dir = opendir(".");
+	while ((de = readdir(dir))) {
+		if (de->d_name[0] == '.' ||
+			(de->d_name[0] != ':' && slab_mismatch(de->d_name)))
+				continue;
+		switch (de->d_type) {
+		   case DT_DIR:
+			if (chdir(de->d_name))
+				fatal("Unable to access slab %s\n", slab->name);
+		   	slab->name = strdup(de->d_name);
+			slab->align = get_obj("align");
+			slab->cache_dma = get_obj("cache_dma");
+			slab->destroy_by_rcu = get_obj("destroy_by_rcu");
+			slab->hwcache_align = get_obj("hwcache_align");
+			slab->object_size = get_obj("object_size");
+			slab->objects = get_obj("objects");
+			slab->total_objects = get_obj("total_objects");
+			slab->objs_per_slab = get_obj("objs_per_slab");
+			slab->order = get_obj("order");
+			slab->poison = get_obj("poison");
+			slab->reclaim_account = get_obj("reclaim_account");
+			slab->red_zone = get_obj("red_zone");
+			slab->slab_size = get_obj("slab_size");
+			slab->slabs = get_obj_and_str("slabs", &t);
+			decode_numa_list(slab->numa, t);
+			free(t);
+			slab->store_user = get_obj("store_user");
+			slab->batch = get_obj("batch");
+			slab->alloc = get_obj("alloc");
+			slab->alloc_slab_fill = get_obj("alloc_slab_fill");
+			slab->alloc_slab_new = get_obj("alloc_slab_new");
+			slab->free = get_obj("free");
+			slab->free_remote = get_obj("free_remote");
+			slab->claim_remote_list = get_obj("claim_remote_list");
+			slab->claim_remote_list_objects = get_obj("claim_remote_list_objects");
+			slab->flush_free_list = get_obj("flush_free_list");
+			slab->flush_free_list_objects = get_obj("flush_free_list_objects");
+			slab->flush_free_list_remote = get_obj("flush_free_list_remote");
+			slab->flush_rfree_list = get_obj("flush_rfree_list");
+			slab->flush_rfree_list_objects = get_obj("flush_rfree_list_objects");
+			slab->flush_slab_free = get_obj("flush_slab_free");
+			slab->flush_slab_partial = get_obj("flush_slab_partial");
+
+			chdir("..");
+			slab++;
+			break;
+		   default :
+			fatal("Unknown file type %lx\n", de->d_type);
+		}
+	}
+	closedir(dir);
+	slabs = slab - slabinfo;
+	actual_slabs = slabs;
+	if (slabs > MAX_SLABS)
+		fatal("Too many slabs\n");
+}
+
+void output_slabs(void)
+{
+	struct slabinfo *slab;
+
+	for (slab = slabinfo; slab < slabinfo + slabs; slab++) {
+
+		if (show_numa)
+			slab_numa(slab, 0);
+		else if (show_track)
+			show_tracking(slab);
+		else if (validate)
+			slab_validate(slab);
+		else if (shrink)
+			slab_shrink(slab);
+		else if (set_debug)
+			slab_debug(slab);
+		else if (show_ops)
+			ops(slab);
+		else if (show_slab)
+			slabcache(slab);
+		else if (show_report)
+			report(slab);
+	}
+}
+
+struct option opts[] = {
+	{ "activity", 0, NULL, 'A' },
+	{ "debug", 2, NULL, 'd' },
+	{ "display-activity", 0, NULL, 'D' },
+	{ "empty", 0, NULL, 'e' },
+	{ "help", 0, NULL, 'h' },
+	{ "inverted", 0, NULL, 'i'},
+	{ "numa", 0, NULL, 'n' },
+	{ "ops", 0, NULL, 'o' },
+	{ "report", 0, NULL, 'r' },
+	{ "shrink", 0, NULL, 's' },
+	{ "slabs", 0, NULL, 'l' },
+	{ "track", 0, NULL, 't'},
+	{ "validate", 0, NULL, 'v' },
+	{ "zero", 0, NULL, 'z' },
+	{ "1ref", 0, NULL, '1'},
+	{ NULL, 0, NULL, 0 }
+};
+
+int main(int argc, char *argv[])
+{
+	int c;
+	int err;
+	char *pattern_source;
+
+	page_size = getpagesize();
+
+	while ((c = getopt_long(argc, argv, "Ad::Dehil1noprstvzTS",
+						opts, NULL)) != -1)
+		switch (c) {
+		case 'A':
+			sort_active = 1;
+			break;
+		case 'd':
+			set_debug = 1;
+			if (!debug_opt_scan(optarg))
+				fatal("Invalid debug option '%s'\n", optarg);
+			break;
+		case 'D':
+			show_activity = 1;
+			break;
+		case 'e':
+			show_empty = 1;
+			break;
+		case 'h':
+			usage();
+			return 0;
+		case 'i':
+			show_inverted = 1;
+			break;
+		case 'n':
+			show_numa = 1;
+			break;
+		case 'o':
+			show_ops = 1;
+			break;
+		case 'r':
+			show_report = 1;
+			break;
+		case 's':
+			shrink = 1;
+			break;
+		case 'l':
+			show_slab = 1;
+			break;
+		case 't':
+			show_track = 1;
+			break;
+		case 'v':
+			validate = 1;
+			break;
+		case 'z':
+			skip_zero = 0;
+			break;
+		case 'T':
+			show_totals = 1;
+			break;
+		case 'S':
+			sort_size = 1;
+			break;
+
+		default:
+			fatal("%s: Invalid option '%c'\n", argv[0], optopt);
+
+	}
+
+	if (!show_slab && !show_track && !show_report
+		&& !validate && !shrink && !set_debug && !show_ops)
+			show_slab = 1;
+
+	if (argc > optind)
+		pattern_source = argv[optind];
+	else
+		pattern_source = ".*";
+
+	err = regcomp(&pattern, pattern_source, REG_ICASE|REG_NOSUB);
+	if (err)
+		fatal("%s: Invalid pattern '%s' code %d\n",
+			argv[0], pattern_source, err);
+	read_slab_dir();
+	if (show_totals)
+		totals();
+	else {
+		sort_slabs();
+		output_slabs();
+	}
+	return 0;
+}
--- linux-mm.orig/Documentation/vm/Makefile	2009-09-02 11:27:38.000000000 +0800
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,8 +0,0 @@
-# kbuild trick to avoid linker error. Can be omitted if a module is built.
-obj- := dummy.o
-
-# List of programs to build
-hostprogs-y := slabinfo
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
--- linux-mm.orig/Documentation/vm/.gitignore	2009-09-02 11:31:30.000000000 +0800
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1 +0,0 @@
-slabinfo

-- 

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