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ext4: use non-racy method for proc entries creation

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Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data
be setup before gluing PDE to main tree.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Cc: <linux-ext4@vger.kernel.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Denis V. Lunev 2008-04-29 01:02:08 -07:00 committed by Linus Torvalds
parent 21ac295b42
commit 46fe74f2ae
1 changed files with 4 additions and 11 deletions
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15
fs/ext4/mballoc.c
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@ -2449,17 +2449,10 @@ static void ext4_mb_history_init(struct super_block *sb)
int i;
if (sbi->s_mb_proc != NULL) {
struct proc_dir_entry *p;
p = create_proc_entry("mb_history", S_IRUGO, sbi->s_mb_proc);
if (p) {
p->proc_fops = &ext4_mb_seq_history_fops;
p->data = sb;
}
p = create_proc_entry("mb_groups", S_IRUGO, sbi->s_mb_proc);
if (p) {
p->proc_fops = &ext4_mb_seq_groups_fops;
p->data = sb;
}
proc_create_data("mb_history", S_IRUGO, sbi->s_mb_proc,
&ext4_mb_seq_history_fops, sb);
proc_create_data("mb_groups", S_IRUGO, sbi->s_mb_proc,
&ext4_mb_seq_groups_fops, sb);
}
sbi->s_mb_history_max = 1000;