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Message-ID: <20070115215305.GC5010@martell.zuzino.mipt.ru>
Date: Tue, 16 Jan 2007 00:53:05 +0300
From: Alexey Dobriyan <adobriyan@...il.com>
To: akpm@...l.org
Cc: linux-kernel@...r.kernel.org, jaharkes@...cmu.edu
Subject: [PATCH] seq_file conversion: coda
Compile-tested.
Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
---
fs/coda/sysctl.c | 76 ++++++++++++++++++++++++++++---------------------------
1 file changed, 39 insertions(+), 37 deletions(-)
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -15,6 +15,7 @@ #include <linux/time.h>
#include <linux/mm.h>
#include <linux/sysctl.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/ctype.h>
@@ -84,15 +85,11 @@ static int do_reset_coda_cache_inv_stats
return 0;
}
-static int coda_vfs_stats_get_info( char * buffer, char ** start,
- off_t offset, int length)
+static int proc_vfs_stats_show(struct seq_file *m, void *v)
{
- int len=0;
- off_t begin;
struct coda_vfs_stats * ps = & coda_vfs_stat;
- /* this works as long as we are below 1024 characters! */
- len += sprintf( buffer,
+ seq_printf(m,
"Coda VFS statistics\n"
"===================\n\n"
"File Operations:\n"
@@ -132,28 +129,14 @@ static int coda_vfs_stats_get_info( char
ps->rmdir,
ps->rename,
ps->permission);
-
- begin = offset;
- *start = buffer + begin;
- len -= begin;
-
- if ( len > length )
- len = length;
- if ( len < 0 )
- len = 0;
-
- return len;
+ return 0;
}
-static int coda_cache_inv_stats_get_info( char * buffer, char ** start,
- off_t offset, int length)
+static int proc_cache_inv_stats_show(struct seq_file *m, void *v)
{
- int len=0;
- off_t begin;
struct coda_cache_inv_stats * ps = & coda_cache_inv_stat;
- /* this works as long as we are below 1024 characters! */
- len += sprintf( buffer,
+ seq_printf(m,
"Coda cache invalidation statistics\n"
"==================================\n\n"
"flush\t\t%9d\n"
@@ -170,19 +153,35 @@ static int coda_cache_inv_stats_get_info
ps->zap_vnode,
ps->purge_fid,
ps->replace );
-
- begin = offset;
- *start = buffer + begin;
- len -= begin;
+ return 0;
+}
- if ( len > length )
- len = length;
- if ( len < 0 )
- len = 0;
+static int proc_vfs_stats_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, proc_vfs_stats_show, NULL);
+}
- return len;
+static int proc_cache_inv_stats_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, proc_cache_inv_stats_show, NULL);
}
+static const struct file_operations proc_vfs_stats_fops = {
+ .owner = THIS_MODULE,
+ .open = proc_vfs_stats_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations proc_cache_inv_stats_fops = {
+ .owner = THIS_MODULE,
+ .open = proc_cache_inv_stats_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
static ctl_table coda_table[] = {
{CODA_TIMEOUT, "timeout", &coda_timeout, sizeof(int), 0644, NULL, &proc_dointvec},
{CODA_HARD, "hard", &coda_hard, sizeof(int), 0644, NULL, &proc_dointvec},
@@ -212,9 +211,6 @@ static struct proc_dir_entry* proc_fs_co
#endif
-#define coda_proc_create(name,get_info) \
- create_proc_info_entry(name, 0, proc_fs_coda, get_info)
-
void coda_sysctl_init(void)
{
reset_coda_vfs_stats();
@@ -223,9 +219,15 @@ void coda_sysctl_init(void)
#ifdef CONFIG_PROC_FS
proc_fs_coda = proc_mkdir("coda", proc_root_fs);
if (proc_fs_coda) {
+ struct proc_dir_entry *pde;
+
proc_fs_coda->owner = THIS_MODULE;
- coda_proc_create("vfs_stats", coda_vfs_stats_get_info);
- coda_proc_create("cache_inv_stats", coda_cache_inv_stats_get_info);
+ pde = create_proc_entry("vfs_stats", 0, proc_fs_coda);
+ if (pde)
+ pde->proc_fops = &proc_vfs_stats_fops;
+ pde = create_proc_entry("cache_inv_stats", 0, proc_fs_coda);
+ if (pde)
+ pde->proc_fops = &proc_cache_inv_stats_fops;
}
#endif
-
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