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Message-Id: <1404424335-30128-4-git-send-email-n-horiguchi@ah.jp.nec.com>
Date: Thu, 3 Jul 2014 17:52:14 -0400
From: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Konstantin Khlebnikov <koct9i@...il.com>,
Wu Fengguang <fengguang.wu@...el.com>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Borislav Petkov <bp@...en8.de>,
"Kirill A. Shutemov" <kirill@...temov.name>,
Johannes Weiner <hannes@...xchg.org>,
Rusty Russell <rusty@...tcorp.com.au>,
David Miller <davem@...emloft.net>,
Andres Freund <andres@...quadrant.com>,
linux-kernel@...r.kernel.org, linux-mm@...ck.org,
Dave Hansen <dave.hansen@...el.com>,
Christoph Hellwig <hch@...radead.org>,
Michael Kerrisk <mtk.manpages@...il.com>,
Linux API <linux-api@...r.kernel.org>,
Naoya Horiguchi <nao.horiguchi@...il.com>
Subject: [PATCH v2 3/4] selftests/fincore: add test code for fincore()
This patch adds simple test programs for fincore(), which contains the
following testcase:
- test_smallfile_bytemap
- test_smallfile_pfn
- test_smallfile_multientry
- test_smallfile_pfn_skiphole
- test_smallfile_pagecache_tag
- test_largefile_pfn
- test_largefile_pfn_offset
- test_largefile_pfn_overrun
- test_largefile_pfn_skiphole
- test_tmpfs_pfn
- test_hugetlb_pfn
- test_invalid_start_address
- test_invalid_len
- test_invalid_mode
- test_unaligned_start_address_hugetlb
ChangeLog v2:
- include uapi/linux/pagecache.h
- add testcase test_invalid_start_address and test_invalid_len
- other small changes to adjust for the kernel's changes
Signed-off-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
---
tools/testing/selftests/Makefile | 1 +
tools/testing/selftests/fincore/Makefile | 31 ++
.../selftests/fincore/create_hugetlbfs_file.c | 49 +++
tools/testing/selftests/fincore/fincore.c | 166 +++++++++
tools/testing/selftests/fincore/run_fincoretests | 401 +++++++++++++++++++++
5 files changed, 648 insertions(+)
create mode 100644 tools/testing/selftests/fincore/Makefile
create mode 100644 tools/testing/selftests/fincore/create_hugetlbfs_file.c
create mode 100644 tools/testing/selftests/fincore/fincore.c
create mode 100644 tools/testing/selftests/fincore/run_fincoretests
diff --git v3.16-rc3.orig/tools/testing/selftests/Makefile v3.16-rc3/tools/testing/selftests/Makefile
index e66e710cc595..91e817b87a9e 100644
--- v3.16-rc3.orig/tools/testing/selftests/Makefile
+++ v3.16-rc3/tools/testing/selftests/Makefile
@@ -11,6 +11,7 @@ TARGETS += vm
TARGETS += powerpc
TARGETS += user
TARGETS += sysctl
+TARGETS += fincore
all:
for TARGET in $(TARGETS); do \
diff --git v3.16-rc3.orig/tools/testing/selftests/fincore/Makefile v3.16-rc3/tools/testing/selftests/fincore/Makefile
new file mode 100644
index 000000000000..ab4361c70da5
--- /dev/null
+++ v3.16-rc3/tools/testing/selftests/fincore/Makefile
@@ -0,0 +1,31 @@
+# Makefile for vm selftests
+
+uname_M := $(shell uname -m 2>/dev/null || echo not)
+ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/)
+ifeq ($(ARCH),i386)
+ ARCH := X86
+ CFLAGS := -DCONFIG_X86_32 -D__i386__
+endif
+ifeq ($(ARCH),x86_64)
+ ARCH := X86
+ CFLAGS := -DCONFIG_X86_64 -D__x86_64__
+endif
+
+CC = $(CROSS_COMPILE)gcc
+CFLAGS = -Wall
+CFLAGS += -I../../../../arch/x86/include/generated/
+CFLAGS += -I../../../../include/
+CFLAGS += -I../../../../usr/include/
+CFLAGS += -I../../../../arch/x86/include/
+
+BINARIES = fincore create_hugetlbfs_file
+
+all: $(BINARIES)
+%: %.c
+ $(CC) $(CFLAGS) -o $@ $^
+
+run_tests: all
+ @/bin/sh ./run_fincoretests || (echo "fincoretests: [FAIL]"; exit 1)
+
+clean:
+ $(RM) $(BINARIES)
diff --git v3.16-rc3.orig/tools/testing/selftests/fincore/create_hugetlbfs_file.c v3.16-rc3/tools/testing/selftests/fincore/create_hugetlbfs_file.c
new file mode 100644
index 000000000000..a46ccf0af5f2
--- /dev/null
+++ v3.16-rc3/tools/testing/selftests/fincore/create_hugetlbfs_file.c
@@ -0,0 +1,49 @@
+#define _GNU_SOURCE 1
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#define err(x) (perror(x), exit(1))
+
+unsigned long default_hugepage_size(void)
+{
+ unsigned long hps = 0;
+ char *line = NULL;
+ size_t linelen = 0;
+ FILE *f = fopen("/proc/meminfo", "r");
+ if (!f)
+ err("open /proc/meminfo");
+ while (getline(&line, &linelen, f) > 0) {
+ if (sscanf(line, "Hugepagesize: %lu kB", &hps) == 1) {
+ hps <<= 10;
+ break;
+ }
+ }
+ free(line);
+ return hps;
+}
+
+int main(int argc, char **argv)
+{
+ int ret;
+ int fd;
+ char *p;
+ unsigned long hpsize = default_hugepage_size();
+ fd = open(argv[1], O_RDWR|O_CREAT);
+ if (fd == -1)
+ err("open");
+ p = mmap(NULL, 10 * hpsize, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+ if (p == (void *)-1)
+ err("mmap");
+ memset(p, 'a', 3 * hpsize);
+ memset(p + 7 * hpsize, 'a', 3 * hpsize - 1);
+ ret = close(fd);
+ if (ret == -1)
+ err("close");
+ return 0;
+}
diff --git v3.16-rc3.orig/tools/testing/selftests/fincore/fincore.c v3.16-rc3/tools/testing/selftests/fincore/fincore.c
new file mode 100644
index 000000000000..5722622a3b75
--- /dev/null
+++ v3.16-rc3/tools/testing/selftests/fincore/fincore.c
@@ -0,0 +1,166 @@
+/*
+ * fincore(2) test program
+ */
+
+#define _GNU_SOURCE 1
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <uapi/linux/pagecache.h>
+
+#define err(x) (perror(x), exit(1))
+
+void usage(char *str)
+{
+ printf(
+ "Usage: %s [-s start] [-l len] [-m mode] [-p pagesize] file\n"
+ " -s: start offset (in bytes)\n"
+ " -l: length to scan (in bytes)\n"
+ " -m: fincore mode\n"
+ " -p: set page size (for hugepage)\n"
+ " -h: show this message\n"
+ , str);
+ exit(EXIT_SUCCESS);
+}
+
+static void show_fincore_buffer(long start, long nr_pages, int records_per_page,
+ int mode, unsigned char *buf)
+{
+ int i, j;
+ unsigned char *curuc = (unsigned char *)buf;
+ unsigned long *curul = (unsigned long *)buf;
+
+ for (i = 0; i < nr_pages; i++) {
+ j = 0;
+ if (mode & FINCORE_BMAP)
+ printf("buffer: 0x%lx\t%d", start + i, curuc[i + j]);
+ else if (mode & (FINCORE_LONGENTRY_MASK)) {
+ if (mode & FINCORE_PGOFF)
+ printf("buffer: 0x%lx",
+ curul[i * records_per_page + (j++)]);
+ else
+ printf("buffer: 0x%lx", start + i);
+ if (mode & FINCORE_PFN)
+ printf("\t0x%lx",
+ curul[i * records_per_page + (j++)]);
+ if (mode & FINCORE_PAGE_FLAGS)
+ printf("\t0x%lx",
+ curul[i * records_per_page + (j++)]);
+ if (mode & FINCORE_PAGECACHE_TAGS)
+ printf("\t0x%lx",
+ curul[i * records_per_page + (j++)]);
+ }
+ printf("\n");
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ char c;
+ int fd;
+ int ret;
+ int mode = FINCORE_PFN;
+ int width = sizeof(unsigned char);
+ int records_per_page = 1;
+ long pagesize = sysconf(_SC_PAGESIZE);
+ long nr_pages;
+ unsigned long start = 0;
+ int len_not_given = 1;
+ long len = 0;
+ long buffer_size = 0;
+ unsigned char *buf;
+ struct stat stat;
+ int extra = 0;
+ struct fincore_extra fe = {
+ .tags = PAGECACHE_TAG_DIRTY|PAGECACHE_TAG_WRITEBACK|
+ PAGECACHE_TAG_TOWRITE,
+ };
+
+ while ((c = getopt(argc, argv, "s:l:m:p:et:b:h")) != -1) {
+ switch (c) {
+ case 's':
+ start = strtoul(optarg, NULL, 0);
+ break;
+ case 'l':
+ len_not_given = 0;
+ len = strtol(optarg, NULL, 0);
+ break;
+ case 'm':
+ mode = strtoul(optarg, NULL, 0);
+ break;
+ case 'p':
+ pagesize = strtoul(optarg, NULL, 0);
+ break;
+ case 'e':
+ extra = 1;
+ break;
+ case 't':
+ fe.tags = strtoul(optarg, NULL, 0);
+ break;
+ case 'b':
+ buffer_size = strtoul(optarg, NULL, 0);
+ break;
+ case 'h':
+ default:
+ usage(argv[0]);
+ }
+ }
+
+ fd = open(argv[optind], O_RDWR);
+ if (fd == -1)
+ err("open failed.");
+
+ /* scan to the end of file by default */
+ if (len_not_given) {
+ ret = fstat(fd, &stat);
+ if (ret == -1)
+ err("fstat failed.");
+ len = stat.st_size - start;
+ }
+
+ if (mode & FINCORE_LONGENTRY_MASK) {
+ records_per_page = ((mode & FINCORE_PGOFF ? 1 : 0) +
+ (mode & FINCORE_PFN ? 1 : 0) +
+ (mode & FINCORE_PAGE_FLAGS ? 1 : 0) +
+ (mode & FINCORE_PAGECACHE_TAGS ? 1 : 0)
+ );
+ width = records_per_page * sizeof(unsigned long);
+ }
+
+ nr_pages = ((len + pagesize - 1) & (~(pagesize - 1))) / pagesize;
+ printf("start:0x%lx, len:%ld, mode:%d, pagesize:0x%lx, "
+ "tags:0x%lx,\n buffer_size:0x%lx, nr_pages:0x%lx, width:%d\n",
+ start, len, mode, pagesize, fe.tags,
+ buffer_size, nr_pages, width);
+ buf = malloc(buffer_size > 0 ? buffer_size : nr_pages * width);
+ if (!buf)
+ err("malloc");
+
+ ret = syscall(__NR_fincore, fd, start, nr_pages, mode, buf,
+ extra ? &fe : NULL);
+ if (ret < 0)
+ err("fincore");
+ /*
+ * print buffer to stdout, and parse it later for validation check.
+ * fincore() returns the number of entries written to the buffer.
+ */
+ show_fincore_buffer(start / pagesize, nr_pages, records_per_page,
+ mode, buf);
+
+ if (extra) {
+ printf("fincore_extra->nr_entries: %ld\n", fe.nr_entries);
+ printf("fincore_extra->tags: 0x%lx\n", fe.tags);
+ }
+
+ ret = close(fd);
+ if (ret < 0)
+ err("close");
+ return 0;
+}
diff --git v3.16-rc3.orig/tools/testing/selftests/fincore/run_fincoretests v3.16-rc3/tools/testing/selftests/fincore/run_fincoretests
new file mode 100644
index 000000000000..99c89f915b30
--- /dev/null
+++ v3.16-rc3/tools/testing/selftests/fincore/run_fincoretests
@@ -0,0 +1,401 @@
+#!/bin/bash
+
+WDIR=./fincore_work
+mkdir $WDIR 2> /dev/null
+TMPF=`mktemp --tmpdir=$WDIR -d`
+export LANG=C
+
+sysctl -q vm.nr_hugepages=50
+
+#
+# common routines
+#
+abort() {
+ echo "Test abort"
+ exit 1
+}
+
+create_small_file() {
+ dd if=/dev/urandom of=$WDIR/smallfile bs=4096 count=4 > /dev/null 2>&1
+ dd if=/dev/urandom of=$WDIR/smallfile bs=4096 count=4 seek=8> /dev/null 2>&1
+ date >> $WDIR/smallfile
+ sync
+}
+
+create_large_file() {
+ dd if=/dev/urandom of=$WDIR/largefile bs=4096 count=384 > /dev/null 2>&1
+ dd if=/dev/urandom of=$WDIR/largefile bs=4096 count=384 seek=640> /dev/null 2>&1
+ sync
+}
+
+create_tmpfs_file() {
+ dd if=/dev/urandom of=/tmp/tmpfile bs=4096 count=4 > /dev/null 2>&1
+ dd if=/dev/urandom of=/tmp/tmpfile bs=4096 count=4 seek=8> /dev/null 2>&1
+ date >> /tmp/tmpfile
+ sync
+}
+
+create_hugetlb_file() {
+ if mount | grep $WDIR/hugepages > /dev/null ; then
+ echo "$WDIR/hugepages already mounted"
+ else
+ mkdir -p $WDIR/hugepages 2> /dev/null
+ mount -t hugetlbfs none $WDIR/hugepages 2> /dev/null
+ if [ $? -ne 0 ] ; then
+ echo "Failed to mount hugetlbfs" >&2
+ return 1
+ fi
+ fi
+ local hptotal=$(grep HugePages_Total: /proc/meminfo | tr -s ' ' | cut -f2 -d' ')
+ if [ "$hptotal" -lt 10 ] ; then
+ echo "Hugepage pool size need to be >= 10" >&2
+ return 1
+ fi
+ ./create_hugetlbfs_file $WDIR/hugepages/file
+ if [ $? -ne 0 ] ; then
+ echo "Failed to create hugetlb file" >&2
+ return 1
+ fi
+ return 0;
+}
+
+get_buffer() {
+ cat "$1" | grep '^buffer:' | cut -f 2- -d ' '
+}
+
+get_fincore_extra_nr_entries() {
+ cat "$1" | grep '^fincore_extra->nr_entries' | cut -f 2 -d ' '
+}
+
+get_fincore_extra_tags() {
+ cat "$1" | grep '^fincore_extra->tags' | cut -f 2 -d ' '
+}
+
+nr_of_exist_should_be() {
+ if [ "$1" -ne "$2" ] ; then
+ echo "[FAIL] $3: Number of on-memory pages should be $1, but got $2"
+ return 1
+ fi
+ return 0
+}
+
+nr_of_nonexist_should_be() {
+ if [ "$1" -ne "$2" ] ; then
+ echo "[FAIL] $3: Number of hole entries should be $1, but got $2"
+ return 1
+ fi
+ return 0
+}
+
+nr_of_valid_entries_should_be() {
+ if [ "$1" -ne "$2" ] ; then
+ echo "[FAIL] $3: Number of valid entries should be $1, but got $2"
+ return 1
+ fi
+ return 0
+}
+
+check_einval() {
+ grep "fincore: Invalid argument" "$1" > /dev/null
+}
+
+#
+# Testcases
+#
+test_smallfile_bytemap() {
+ local exist
+ local nonexist
+ create_small_file
+
+ ./fincore -m 0x1 $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ exist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep 1 | wc -l)
+ nonexist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep 0 | wc -l)
+ nr_of_exist_should_be 9 "$exist" "$FUNCNAME" || return 1
+ nr_of_nonexist_should_be 4 "$nonexist" "$FUNCNAME" || return 1
+ echo "[PASS] $FUNCNAME"
+}
+
+test_smallfile_pfn() {
+ local exist
+ local nonexist
+ create_small_file
+
+ ./fincore -m 0x4 $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ exist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep -v 0x0 | wc -l)
+ nonexist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep 0x0 | wc -l)
+ nr_of_exist_should_be 9 "$exist" "$FUNCNAME" || return 1
+ nr_of_nonexist_should_be 4 "$nonexist" "$FUNCNAME" || return 1
+ echo "[PASS] $FUNCNAME"
+}
+
+test_smallfile_multientry() {
+ local exist
+ local nonexist
+ create_small_file
+
+ ./fincore -m 0x1c -e $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ exist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2,3,4 | grep -vP "0x0\t0x0\t0x0" | wc -l)
+ nonexist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2,3,4 | grep -P "0x0\t0x0\t0x0" | wc -l)
+ nr_of_exist_should_be 9 "$exist" "$FUNCNAME" || return 1
+ nr_of_nonexist_should_be 4 "$nonexist" "$FUNCNAME" || return 1
+ echo "[PASS] $FUNCNAME"
+}
+
+test_smallfile_pfn_skiphole() {
+ local exist
+ local nonexist
+ local nr_entries
+ create_small_file
+
+ ./fincore -m 0x6 -e $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ exist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep -v 0x0 | wc -l)
+ nonexist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep 0x0 | wc -l)
+ nr_entries=$(get_fincore_extra_nr_entries $TMPF/$FUNCNAME)
+ nr_of_exist_should_be 9 "$exist" "$FUNCNAME" || return 1
+ nr_of_nonexist_should_be 4 "$nonexist" "$FUNCNAME" || return 1
+ nr_of_valid_entries_should_be 9 "$nr_entries" "$FUNCNAME" || return 1
+ echo "[PASS] $FUNCNAME"
+}
+
+test_smallfile_pagecache_tag() {
+ local nr_dirty
+ local fincore_extra_tags
+ create_small_file
+
+ # dirty one page
+ date >> $WDIR/smallfile
+
+ ./fincore -m 0x10 -e -t 0xff $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ nr_dirty=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep 0x1 | wc -l)
+ fincore_extra_tags=$(get_fincore_extra_tags $TMPF/$FUNCNAME)
+ if [ "$nr_dirty" -ne 1 ] ; then
+ echo "[FAIL] $FUNCNAME: Number of dirty bit should be 1, but got $nr_dirty"
+ return 1
+ fi
+ if [ "$fincore_extra_tags" != 0x7 ] ; then
+ echo "[FAIL] $FUNCNAME: unsupported PAGECACHE_TAG_* should be ignored."
+ return 1
+ fi
+
+ # ignore only PAGECACHE_TAG_DIRTY
+ ./fincore -m 0x10 -e -t 0x6 $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ nr_dirty=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep 0x1 | wc -l)
+ fincore_extra_tags=$(get_fincore_extra_tags $TMPF/$FUNCNAME)
+ if [ "$nr_dirty" -ne 0 ] ; then
+ echo "[FAIL] $FUNCNAME: Number of dirty bit should be 0, but got $nr_dirty"
+ return 1
+ fi
+ if [ "$fincore_extra_tags" != 0x6 ] ; then
+ echo "[FAIL] $FUNCNAME: unsupported PAGECACHE_TAG_* should be ignored."
+ return 1
+ fi
+ echo "[PASS] $FUNCNAME"
+}
+
+# in-kernel function sys_fincore() repeat copy_to_user() per 256 entries,
+# so testing for large file is meaningful testcase.
+test_largefile_pfn() {
+ local exist
+ local nonexist
+ create_large_file
+
+ ./fincore -m 0x4 -e $WDIR/largefile > $TMPF/$FUNCNAME 2>&1
+ exist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep -v 0x0 | wc -l)
+ nonexist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep 0x0 | wc -l)
+ nr_of_exist_should_be 768 "$exist" "$FUNCNAME" || return 1
+ nr_of_nonexist_should_be 256 "$nonexist" "$FUNCNAME" || return 1
+ echo "[PASS] $FUNCNAME"
+}
+
+test_largefile_pfn_offset() {
+ local exist
+ local nonexist
+ create_large_file
+
+ ./fincore -m 0x4 -s 0x80000 $WDIR/largefile > $TMPF/$FUNCNAME 2>&1
+ exist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep -v 0x0 | wc -l)
+ nonexist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep 0x0 | wc -l)
+ nr_of_exist_should_be 640 "$exist" "$FUNCNAME" || return 1
+ nr_of_nonexist_should_be 256 "$nonexist" "$FUNCNAME" || return 1
+ echo "[PASS] $FUNCNAME"
+}
+
+test_largefile_pfn_overrun() {
+ local exist
+ local nonexist
+ local nr_entries
+ create_large_file
+
+ ./fincore -m 0x4 -s 0x80000 -l 0x400000 -e $WDIR/largefile > $TMPF/$FUNCNAME 2>&1
+ exist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep -v 0x0 | wc -l)
+ nonexist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep 0x0 | wc -l)
+ nr_entries=$(get_fincore_extra_nr_entries $TMPF/$FUNCNAME)
+ nr_of_exist_should_be 640 "$exist" "$FUNCNAME" || return 1
+ nr_of_nonexist_should_be 384 "$nonexist" "$FUNCNAME" || return 1
+ nr_of_valid_entries_should_be 896 "$nr_entries" "$FUNCNAME" || return 1
+ echo "[PASS] $FUNCNAME"
+}
+
+test_largefile_pfn_skiphole() {
+ local exist
+ local nonexist
+ create_large_file
+
+ ./fincore -m 0x6 -s 0x100000 -l 0x102000 -e $WDIR/largefile > $TMPF/$FUNCNAME 2>&1
+ exist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep -v 0x0 | wc -l)
+ nonexist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep 0x0 | wc -l)
+ nr_entries=$(get_fincore_extra_nr_entries $TMPF/$FUNCNAME)
+ nr_of_exist_should_be 258 "$exist" "$FUNCNAME" || return 1
+ nr_of_nonexist_should_be 0 "$nonexist" "$FUNCNAME" || return 1
+ nr_of_valid_entries_should_be 258 "$nr_entries" "$FUNCNAME" || return 1
+ echo "[PASS] $FUNCNAME"
+}
+
+test_tmpfs_pfn() {
+ local exist
+ local nonexist
+ create_tmpfs_file
+
+ ./fincore -m 0x4 /tmp/tmpfile > $TMPF/$FUNCNAME 2>&1
+ exist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep -v 0x0 | wc -l)
+ nonexist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep 0x0 | wc -l)
+ nr_of_exist_should_be 9 "$exist" "$FUNCNAME" || return 1
+ nr_of_nonexist_should_be 4 "$nonexist" "$FUNCNAME" || return 1
+ echo "[PASS] $FUNCNAME"
+}
+
+test_hugetlb_pfn() {
+ local exist
+ local nonexist
+ local exitcode=0
+ create_hugetlb_file
+ if [ $? -ne 0 ] ; then
+ echo "[FAIL] $FUNCNAME: fail to create a file on hugetlbfs"
+ return 1
+ fi
+ local hugepagesize=$[$(cat /proc/meminfo | grep Hugepagesize: | tr -s ' ' | cut -f2 -d' ') * 1024]
+ ./fincore -p $hugepagesize -m 0x4 -e $WDIR/hugepages/file > $TMPF/$FUNCNAME 2>&1
+ exist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep -v 0x0 | wc -l)
+ nonexist=$(get_buffer $TMPF/$FUNCNAME | cut -f 2 | grep 0x0 | wc -l)
+ nr_entries=$(get_fincore_extra_nr_entries $TMPF/$FUNCNAME)
+ nr_of_exist_should_be 6 "$exist" "$FUNCNAME" || return 1
+ nr_of_nonexist_should_be 4 "$nonexist" "$FUNCNAME" || return 1
+ nr_of_valid_entries_should_be 10 "$nr_entries" "$FUNCNAME" || return 1
+ rm -rf $WDIR/hugepages/file
+ echo "[PASS] $FUNCNAME"
+}
+
+test_invalid_start_address() {
+ create_small_file
+ ./fincore -m 0x4 -s -0x4000 -l 1 -e $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ if [ $? -eq 0 ] || ! check_einval $TMPF/$FUNCNAME ; then
+ echo "[FAIL] $FUNCNAME: negative start is invalid"
+ return 1
+ fi
+ ./fincore -m 0x4 -s 0x100000 -l 1 -e $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ if [ $? -eq 0 ] || ! check_einval $TMPF/$FUNCNAME ; then
+ echo "[FAIL] $FUNCNAME: too large start is invalid"
+ return 1
+ fi
+ ./fincore -m 0x4 -s 0x30 $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ if [ $? -eq 0 ] || ! check_einval $TMPF/$FUNCNAME ; then
+ echo "[FAIL] $FUNCNAME: fincore should fail for unaligned start address"
+ return 1
+ fi
+ echo "[PASS] $FUNCNAME"
+}
+
+test_invalid_len() {
+ create_small_file
+ ./fincore -m 0x4 -l 0 $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ if [ $? -eq 0 ] || ! check_einval $TMPF/$FUNCNAME ; then
+ echo "[FAIL] $FUNCNAME: zero len is invalid"
+ return 1
+ fi
+ ./fincore -m 0x4 -l -10 $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ if [ $? -eq 0 ] || ! check_einval $TMPF/$FUNCNAME ; then
+ echo "[FAIL] $FUNCNAME: negative len is invalid"
+ return 1
+ fi
+ echo "[PASS] $FUNCNAME"
+}
+
+test_invalid_mode() {
+ create_small_file
+ ./fincore -m 0x0 $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ if [ $? -eq 0 ] || ! check_einval $TMPF/$FUNCNAME ; then
+ echo "[FAIL] $FUNCNAME: mode == NULL is invalid mode"
+ return 1
+ fi
+ ./fincore -m 0x5 $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ if [ $? -eq 0 ] || ! check_einval $TMPF/$FUNCNAME ; then
+ echo "[FAIL] $FUNCNAME: mode == (FINCORE_BMAP|FINCORE_PFN) is invalid mode"
+ return 1
+ fi
+ ./fincore -m 0x3 $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ if [ $? -eq 0 ] || ! check_einval $TMPF/$FUNCNAME ; then
+ echo "[FAIL] $FUNCNAME: mode == (FINCORE_BMAP|FINCORE_PGOFF) is invalid mode"
+ return 1
+ fi
+ ./fincore -m 0x6 $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ if [ $? -ne 0 ] ; then
+ echo "[FAIL] $FUNCNAME: mode == (FINCORE_PGOFF|FINCORE_PFN) is valid mode"
+ return 1
+ fi
+ ./fincore -m 0x2 $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ if [ $? -ne 0 ] ; then
+ echo "[FAIL] $FUNCNAME: mode == (FINCORE_PGOFF) is valid mode"
+ return 1
+ fi
+ ./fincore -m 0x1004 $WDIR/smallfile > $TMPF/$FUNCNAME 2>&1
+ if [ $? -eq 0 ] || ! check_einval $TMPF/$FUNCNAME ; then
+ echo "[FAIL] $FUNCNAME: mode == (Unknown|FINCORE_PFN) is invalid mode"
+ return 1
+ fi
+ echo "[PASS] $FUNCNAME"
+}
+
+test_unaligned_start_address_hugetlb() {
+ local exist
+ local nonexist
+ local exitcode=0
+ create_hugetlb_file
+ if [ $? -ne 0 ] ; then
+ echo "[FAIL] $FUNCNAME: fail to create a file on hugetlbfs"
+ return 1
+ fi
+ local hugepagesize=$[$(cat /proc/meminfo | grep Hugepagesize: | tr -s ' ' | cut -f2 -d' ') * 1024]
+ ./fincore -p $hugepagesize -m 0x4 -s 0x1000 $WDIR/hugepages/file > $TMPF/$FUNCNAME 2>&1
+ if [ $? -eq 0 ] || ! check_einval $TMPF/$FUNCNAME ; then
+ echo "[FAIL] $FUNCNAME: fincore should fail for page-unaligned start address"
+ return 1
+ fi
+ ./fincore -p $hugepagesize -m 0x4 -s $hugepagesize $WDIR/hugepages/file > $TMPF/$FUNCNAME 2>&1
+ if [ $? -ne 0 ] ; then
+ echo "[FAIL] $FUNCNAME: fincore should pass for hugepage-aligned start address"
+ return 1
+ fi
+ echo "[PASS] $FUNCNAME"
+}
+
+test_smallfile_bytemap || abort
+test_smallfile_pfn || abort
+test_smallfile_multientry || abort
+test_smallfile_pfn_skiphole || abort
+test_smallfile_pagecache_tag || abort
+test_largefile_pfn || abort
+test_largefile_pfn_offset || abort
+test_largefile_pfn_overrun || abort
+test_largefile_pfn_skiphole || abort
+test_tmpfs_pfn || abort
+test_hugetlb_pfn || abort
+test_invalid_start_address || abort
+test_invalid_len || abort
+test_invalid_mode || abort
+test_unaligned_start_address_hugetlb || abort
+
+# cleanup
+rm -rf $WDIR/hugepages/file
+umount $WDIR/hugepages > /dev/null 2>&1
+
+exit 0
--
1.9.3
--
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