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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6:
  jfs: remove DIRENTSIZ
  JFS: diAlloc() should return -EIO rather than EIO
  JFS: skip bad iput() call in error path
  JFS: switch to seq_files
  JFS: 0 is not valid errno value so return NULL from jfs_lookup
This commit is contained in:
Linus Torvalds 2008-07-15 11:03:19 -07:00
parent 14351760e3 ec1aef3366
commit e4e0fadcd9
10 changed files with 125 additions and 148 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
fs/jfs/jfs_debug.c
View File

@ -21,6 +21,7 @@
#include <linux/ctype.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
#include "jfs_incore.h"
#include "jfs_filsys.h"
@ -30,29 +31,19 @@
static struct proc_dir_entry *base;
#ifdef CONFIG_JFS_DEBUG
static int loglevel_read(char *page, char **start, off_t off,
int count, int *eof, void *data)
static int jfs_loglevel_proc_show(struct seq_file *m, void *v)
{
int len;
len = sprintf(page, "%d\n", jfsloglevel);
len -= off;
*start = page + off;
if (len > count)
len = count;
else
*eof = 1;
if (len < 0)
len = 0;
return len;
seq_printf(m, "%d\n", jfsloglevel);
return 0;
}
static int loglevel_write(struct file *file, const char __user *buffer,
unsigned long count, void *data)
static int jfs_loglevel_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, jfs_loglevel_proc_show, NULL);
}
static ssize_t jfs_loglevel_proc_write(struct file *file,
const char __user *buffer, size_t count, loff_t *ppos)
{
char c;
@ -65,22 +56,30 @@ static int loglevel_write(struct file *file, const char __user *buffer,
jfsloglevel = c - '0';
return count;
}
static const struct file_operations jfs_loglevel_proc_fops = {
.owner = THIS_MODULE,
.open = jfs_loglevel_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = jfs_loglevel_proc_write,
};
#endif
static struct {
const char *name;
read_proc_t *read_fn;
write_proc_t *write_fn;
const struct file_operations *proc_fops;
} Entries[] = {
#ifdef CONFIG_JFS_STATISTICS
{ "lmstats", jfs_lmstats_read, },
{ "txstats", jfs_txstats_read, },
{ "xtstat", jfs_xtstat_read, },
{ "mpstat", jfs_mpstat_read, },
{ "lmstats", &jfs_lmstats_proc_fops, },
{ "txstats", &jfs_txstats_proc_fops, },
{ "xtstat", &jfs_xtstat_proc_fops, },
{ "mpstat", &jfs_mpstat_proc_fops, },
#endif
#ifdef CONFIG_JFS_DEBUG
{ "TxAnchor", jfs_txanchor_read, },
{ "loglevel", loglevel_read, loglevel_write }
{ "TxAnchor", &jfs_txanchor_proc_fops, },
{ "loglevel", &jfs_loglevel_proc_fops }
#endif
};
#define NPROCENT ARRAY_SIZE(Entries)
@ -93,13 +92,8 @@ void jfs_proc_init(void)
return;
base->owner = THIS_MODULE;
for (i = 0; i < NPROCENT; i++) {
struct proc_dir_entry *p;
if ((p = create_proc_entry(Entries[i].name, 0, base))) {
p->read_proc = Entries[i].read_fn;
p->write_proc = Entries[i].write_fn;
}
}
for (i = 0; i < NPROCENT; i++)
proc_create(Entries[i].name, 0, base, Entries[i].proc_fops);
}
void jfs_proc_clean(void)

10
fs/jfs/jfs_debug.h
View File

@ -62,7 +62,7 @@ extern void jfs_proc_clean(void);
extern int jfsloglevel;
extern int jfs_txanchor_read(char *, char **, off_t, int, int *, void *);
extern const struct file_operations jfs_txanchor_proc_fops;
/* information message: e.g., configuration, major event */
#define jfs_info(fmt, arg...) do { \
@ -105,10 +105,10 @@ extern int jfs_txanchor_read(char *, char **, off_t, int, int *, void *);
* ----------
*/
#ifdef CONFIG_JFS_STATISTICS
extern int jfs_lmstats_read(char *, char **, off_t, int, int *, void *);
extern int jfs_txstats_read(char *, char **, off_t, int, int *, void *);
extern int jfs_mpstat_read(char *, char **, off_t, int, int *, void *);
extern int jfs_xtstat_read(char *, char **, off_t, int, int *, void *);
extern const struct file_operations jfs_lmstats_proc_fops;
extern const struct file_operations jfs_txstats_proc_fops;
extern const struct file_operations jfs_mpstat_proc_fops;
extern const struct file_operations jfs_xtstat_proc_fops;
#define INCREMENT(x) ((x)++)
#define DECREMENT(x) ((x)--)

3
fs/jfs/jfs_dtree.h
View File

@ -243,9 +243,6 @@ typedef union {
#define JFS_REMOVE 3
#define JFS_RENAME 4
#define DIRENTSIZ(namlen) \
( (sizeof(struct dirent) - 2*(JFS_NAME_MAX+1) + 2*((namlen)+1) + 3) &~ 3 )
/*
* Maximum file offset for directories.
*/

2
fs/jfs/jfs_imap.c
View File

@ -1520,7 +1520,7 @@ int diAlloc(struct inode *pip, bool dir, struct inode *ip)
jfs_error(ip->i_sb,
"diAlloc: can't find free bit "
"in wmap");
return EIO;
return -EIO;
}
/* determine the inode number within the

37
fs/jfs/jfs_logmgr.c
View File

@ -69,6 +69,7 @@
#include <linux/freezer.h>
#include <linux/delay.h>
#include <linux/mutex.h>
#include <linux/seq_file.h>
#include "jfs_incore.h"
#include "jfs_filsys.h"
#include "jfs_metapage.h"
@ -2503,13 +2504,9 @@ exit:
}
#ifdef CONFIG_JFS_STATISTICS
int jfs_lmstats_read(char *buffer, char **start, off_t offset, int length,
int *eof, void *data)
static int jfs_lmstats_proc_show(struct seq_file *m, void *v)
{
int len = 0;
off_t begin;
len += sprintf(buffer,
seq_printf(m,
"JFS Logmgr stats\n"
"================\n"
"commits = %d\n"
@ -2522,19 +2519,19 @@ int jfs_lmstats_read(char *buffer, char **start, off_t offset, int length,
lmStat.pagedone,
lmStat.full_page,
lmStat.partial_page);
begin = offset;
*start = buffer + begin;
len -= begin;
if (len > length)
len = length;
else
*eof = 1;
if (len < 0)
len = 0;
return len;
return 0;
}
static int jfs_lmstats_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, jfs_lmstats_proc_show, NULL);
}
const struct file_operations jfs_lmstats_proc_fops = {
.owner = THIS_MODULE,
.open = jfs_lmstats_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif /* CONFIG_JFS_STATISTICS */

38
fs/jfs/jfs_metapage.c
View File

@ -19,10 +19,12 @@
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/bio.h>
#include <linux/init.h>
#include <linux/buffer_head.h>
#include <linux/mempool.h>
#include <linux/seq_file.h>
#include "jfs_incore.h"
#include "jfs_superblock.h"
#include "jfs_filsys.h"
@ -804,13 +806,9 @@ void __invalidate_metapages(struct inode *ip, s64 addr, int len)
}
#ifdef CONFIG_JFS_STATISTICS
int jfs_mpstat_read(char *buffer, char **start, off_t offset, int length,
int *eof, void *data)
static int jfs_mpstat_proc_show(struct seq_file *m, void *v)
{
int len = 0;
off_t begin;
len += sprintf(buffer,
seq_printf(m,
"JFS Metapage statistics\n"
"=======================\n"
"page allocations = %d\n"
@ -819,19 +817,19 @@ int jfs_mpstat_read(char *buffer, char **start, off_t offset, int length,
mpStat.pagealloc,
mpStat.pagefree,
mpStat.lockwait);
begin = offset;
*start = buffer + begin;
len -= begin;
if (len > length)
len = length;
else
*eof = 1;
if (len < 0)
len = 0;
return len;
return 0;
}
static int jfs_mpstat_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, jfs_mpstat_proc_show, NULL);
}
const struct file_operations jfs_mpstat_proc_fops = {
.owner = THIS_MODULE,
.open = jfs_mpstat_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif

72
fs/jfs/jfs_txnmgr.c
View File

@ -49,6 +49,7 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kthread.h>
#include <linux/seq_file.h>
#include "jfs_incore.h"
#include "jfs_inode.h"
#include "jfs_filsys.h"
@ -3009,11 +3010,8 @@ int jfs_sync(void *arg)
}
#if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_DEBUG)
int jfs_txanchor_read(char *buffer, char **start, off_t offset, int length,
int *eof, void *data)
static int jfs_txanchor_proc_show(struct seq_file *m, void *v)
{
int len = 0;
off_t begin;
char *freewait;
char *freelockwait;
char *lowlockwait;
@ -3025,7 +3023,7 @@ int jfs_txanchor_read(char *buffer, char **start, off_t offset, int length,
lowlockwait =
waitqueue_active(&TxAnchor.lowlockwait) ? "active" : "empty";
len += sprintf(buffer,
seq_printf(m,
"JFS TxAnchor\n"
"============\n"
"freetid = %d\n"
@ -3044,31 +3042,27 @@ int jfs_txanchor_read(char *buffer, char **start, off_t offset, int length,
TxAnchor.tlocksInUse,
jfs_tlocks_low,
list_empty(&TxAnchor.unlock_queue) ? "" : "not ");
begin = offset;
*start = buffer + begin;
len -= begin;
if (len > length)
len = length;
else
*eof = 1;
if (len < 0)
len = 0;
return len;
return 0;
}
static int jfs_txanchor_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, jfs_txanchor_proc_show, NULL);
}
const struct file_operations jfs_txanchor_proc_fops = {
.owner = THIS_MODULE,
.open = jfs_txanchor_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif
#if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_STATISTICS)
int jfs_txstats_read(char *buffer, char **start, off_t offset, int length,
int *eof, void *data)
static int jfs_txstats_proc_show(struct seq_file *m, void *v)
{
int len = 0;
off_t begin;
len += sprintf(buffer,
seq_printf(m,
"JFS TxStats\n"
"===========\n"
"calls to txBegin = %d\n"
@ -3089,19 +3083,19 @@ int jfs_txstats_read(char *buffer, char **start, off_t offset, int length,
TxStat.txBeginAnon_lockslow,
TxStat.txLockAlloc,
TxStat.txLockAlloc_freelock);
begin = offset;
*start = buffer + begin;
len -= begin;
if (len > length)
len = length;
else
*eof = 1;
if (len < 0)
len = 0;
return len;
return 0;
}
static int jfs_txstats_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, jfs_txstats_proc_show, NULL);
}
const struct file_operations jfs_txstats_proc_fops = {
.owner = THIS_MODULE,
.open = jfs_txstats_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif

38
fs/jfs/jfs_xtree.c
View File

@ -20,7 +20,9 @@
*/
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/quotaops.h>
#include <linux/seq_file.h>
#include "jfs_incore.h"
#include "jfs_filsys.h"
#include "jfs_metapage.h"
@ -4134,13 +4136,9 @@ s64 xtTruncate_pmap(tid_t tid, struct inode *ip, s64 committed_size)
}
#ifdef CONFIG_JFS_STATISTICS
int jfs_xtstat_read(char *buffer, char **start, off_t offset, int length,
int *eof, void *data)
static int jfs_xtstat_proc_show(struct seq_file *m, void *v)
{
int len = 0;
off_t begin;
len += sprintf(buffer,
seq_printf(m,
"JFS Xtree statistics\n"
"====================\n"
"searches = %d\n"
@ -4149,19 +4147,19 @@ int jfs_xtstat_read(char *buffer, char **start, off_t offset, int length,
xtStat.search,
xtStat.fastSearch,
xtStat.split);
begin = offset;
*start = buffer + begin;
len -= begin;
if (len > length)
len = length;
else
*eof = 1;
if (len < 0)
len = 0;
return len;
return 0;
}
static int jfs_xtstat_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, jfs_xtstat_proc_show, NULL);
}
const struct file_operations jfs_xtstat_proc_fops = {
.owner = THIS_MODULE,
.open = jfs_xtstat_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif

2
fs/jfs/namei.c
View File

@ -1455,7 +1455,7 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc
free_UCSname(&key);
if (rc == -ENOENT) {
d_add(dentry, NULL);
return ERR_PTR(0);
return NULL;
} else if (rc) {
jfs_err("jfs_lookup: dtSearch returned %d", rc);
return ERR_PTR(rc);

7
fs/jfs/super.c
View File

@ -499,7 +499,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
inode = jfs_iget(sb, ROOT_I);
if (IS_ERR(inode)) {
ret = PTR_ERR(inode);
goto out_no_root;
goto out_no_rw;
}
sb->s_root = d_alloc_root(inode);
if (!sb->s_root)
@ -521,9 +521,8 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
return 0;
out_no_root:
jfs_err("jfs_read_super: get root inode failed");
if (inode)
iput(inode);
jfs_err("jfs_read_super: get root dentry failed");
iput(inode);
out_no_rw:
rc = jfs_umount(sb);