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ocfs2: Push out dropping of dentry lock to ocfs2_wq

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Dropping of last reference to dentry lock is a complicated operation involving
dropping of reference to inode. This can get complicated and quota code in
particular needs to obtain some quota locks which leads to potential deadlock.
Thus we defer dropping of inode reference to ocfs2_wq.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Jan Kara
2009-01-12 23:20:31 +01:00
committed by Mark Fasheh
parent 27421e211a
commit ea455f8ab6
4 changed files with 56 additions and 4 deletions
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3
fs/ocfs2/super.c
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@@ -1887,6 +1887,9 @@ static int ocfs2_initialize_super(struct super_block *sb,
INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery);
journal->j_state = OCFS2_JOURNAL_FREE;
INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes);
osb->dentry_lock_list = NULL;
/* get some pseudo constants for clustersize bits */
osb->s_clustersize_bits =
le32_to_cpu(di->id2.i_super.s_clustersize_bits);