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authorJan Kara <jack@suse.cz>2014-04-03 14:46:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-03 16:20:55 -0700
commit84d86f83f9d0e8431a3c9eae4c47e9d7ff49a411 (patch)
treef8708771a3316e70468d98691d14d1873ae69213 /fs/ocfs2/ocfs2.h
parente3a767b60fd8a9f5e133f42f4970cff77ec43173 (diff)
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ocfs2: avoid blocking in ocfs2_mark_lockres_freeing() in downconvert thread
If we are dropping last inode reference from downconvert thread, we will end up calling ocfs2_mark_lockres_freeing() which can block if the lock we are freeing is queued thus creating an A-A deadlock. Luckily, since we are the downconvert thread, we can immediately dequeue the lock and thus avoid waiting in this case. Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Mark Fasheh <mfasheh@suse.de> Reviewed-by: Srinivas Eeda <srinivas.eeda@oracle.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/ocfs2.h')
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