quota: Fix WARN_ON in lookup_one_len

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We should hold i_mutex when looking up quota files for journaled quotas,
otherwise a WARN_ON in lookup_one_len triggers. The fact that we didn't
hold i_mutex previously probably could not lead to a real bug since the
filesystem is just being mounted / remounted read-write and thus the
root directory cannot change anyway but it's definitely cleaner with
i_mutex.

Reported-by: Bastien ROUCARIES <roucaries.bastien@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>

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Jan Kara 2009-11-12 15:42:08 +01:00

parent 1472da5fdc

commit c56818d7dc

1 changed files with 2 additions and 0 deletions

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fs/quota/dquot.c

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