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jbd2: 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 <[email protected]>
Cc: <[email protected]>
Cc: Alexey Dobriyan <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Denis V. Lunev 2008-04-29 01:02:11 -07:00 • committed by Linus Torvalds
commit 79da3664f6
1 changed files with 4 additions and 13 deletions
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17
fs/jbd2/journal.c
View file

@ -904,19 +904,10 @@ static void jbd2_stats_proc_init(journal_t *journal)
snprintf(name, sizeof(name) - 1, "%s", bdevname(journal->j_dev, name));
journal->j_proc_entry = proc_mkdir(name, proc_jbd2_stats);
if (journal->j_proc_entry) {
struct proc_dir_entry *p;
p = create_proc_entry("history", S_IRUGO,
journal->j_proc_entry);
if (p) {
p->proc_fops = &jbd2_seq_history_fops;
p->data = journal;
p = create_proc_entry("info", S_IRUGO,
journal->j_proc_entry);
if (p) {
p->proc_fops = &jbd2_seq_info_fops;
p->data = journal;
}
}
proc_create_data("history", S_IRUGO, journal->j_proc_entry,
&jbd2_seq_history_fops, journal);
proc_create_data("info", S_IRUGO, journal->j_proc_entry,
&jbd2_seq_info_fops, journal);
}
}