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jbd2: only create debugfs and stats entries if init is successful 

jbd2 debugfs and stats entries should only be created if cache initialisation
is successful.  At the moment they are being created unconditionally which
will leave them dangling if cache (and hence module) initialisation fails.

Signed-off-by: Duane Griffin <duaneg@dghda.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
hifive-unleashed-5.1
Duane Griffin 2008-04-29 22:02:47 -04:00 committed by Theodore Ts'o
parent 5648ba5b2d
commit 620de4e198
1 changed files with 5 additions and 3 deletions
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8
fs/jbd2/journal.c
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@ -2307,10 +2307,12 @@ static int __init journal_init(void)
BUILD_BUG_ON(sizeof(struct journal_superblock_s) != 1024);
ret = journal_init_caches();
if (ret != 0)
if (ret == 0) {
jbd2_create_debugfs_entry();
jbd2_create_jbd_stats_proc_entry();
} else {
jbd2_journal_destroy_caches();
jbd2_create_debugfs_entry();
jbd2_create_jbd_stats_proc_entry();
}
return ret;
}