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ext4: switch to seq_files 

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Alexey Dobriyan 2008-07-11 19:27:31 -04:00 committed by Theodore Ts'o
parent 07d45f1267
commit 91d9982779
1 changed files with 34 additions and 34 deletions
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68
fs/ext4/mballoc.c
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@ -2583,25 +2583,24 @@ ext4_mb_free_committed_blocks(struct super_block *sb)
#define MB_PROC_VALUE_READ(name) \
static int ext4_mb_read_##name(char *page, char **start, \
off_t off, int count, int *eof, void *data) \
#define MB_PROC_FOPS(name) \
static int ext4_mb_##name##_proc_show(struct seq_file *m, void *v) \
{ \
struct ext4_sb_info *sbi = data; \
int len; \
*eof = 1; \
if (off != 0) \
return 0; \
len = sprintf(page, "%ld\n", sbi->s_mb_##name); \
*start = page; \
return len; \
}
#define MB_PROC_VALUE_WRITE(name) \
static int ext4_mb_write_##name(struct file *file, \
const char __user *buf, unsigned long cnt, void *data) \
struct ext4_sb_info *sbi = m->private; \
\
seq_printf(m, "%ld\n", sbi->s_mb_##name); \
return 0; \
} \
\
static int ext4_mb_##name##_proc_open(struct inode *inode, struct file *file)\
{ \
struct ext4_sb_info *sbi = data; \
return single_open(file, ext4_mb_##name##_proc_show, PDE(inode)->data);\
} \
\
static ssize_t ext4_mb_##name##_proc_write(struct file *file, \
const char __user *buf, size_t cnt, loff_t *ppos) \
{ \
struct ext4_sb_info *sbi = PDE(file->f_path.dentry->d_inode)->data;\
char str[32]; \
long value; \
if (cnt >= sizeof(str)) \
@ -2613,31 +2612,32 @@ static int ext4_mb_write_##name(struct file *file, \
return -ERANGE; \
sbi->s_mb_##name = value; \
return cnt; \
}
} \
\
static const struct file_operations ext4_mb_##name##_proc_fops = { \
.owner = THIS_MODULE, \
.open = ext4_mb_##name##_proc_open, \
.read = seq_read, \
.llseek = seq_lseek, \
.release = single_release, \
.write = ext4_mb_##name##_proc_write, \
};
MB_PROC_VALUE_READ(stats);
MB_PROC_VALUE_WRITE(stats);
MB_PROC_VALUE_READ(max_to_scan);
MB_PROC_VALUE_WRITE(max_to_scan);
MB_PROC_VALUE_READ(min_to_scan);
MB_PROC_VALUE_WRITE(min_to_scan);
MB_PROC_VALUE_READ(order2_reqs);
MB_PROC_VALUE_WRITE(order2_reqs);
MB_PROC_VALUE_READ(stream_request);
MB_PROC_VALUE_WRITE(stream_request);
MB_PROC_VALUE_READ(group_prealloc);
MB_PROC_VALUE_WRITE(group_prealloc);
MB_PROC_FOPS(stats);
MB_PROC_FOPS(max_to_scan);
MB_PROC_FOPS(min_to_scan);
MB_PROC_FOPS(order2_reqs);
MB_PROC_FOPS(stream_request);
MB_PROC_FOPS(group_prealloc);
#define MB_PROC_HANDLER(name, var) \
do { \
proc = create_proc_entry(name, mode, sbi->s_mb_proc); \
proc = proc_create_data(name, mode, sbi->s_mb_proc, \
&ext4_mb_##var##_proc_fops, sbi); \
if (proc == NULL) { \
printk(KERN_ERR "EXT4-fs: can't to create %s\n", name); \
goto err_out; \
} \
proc->data = sbi; \
proc->read_proc = ext4_mb_read_##var ; \
proc->write_proc = ext4_mb_write_##var; \
} while (0)
static int ext4_mb_init_per_dev_proc(struct super_block *sb)