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ocfs2: lock the metaecc process for xattr bucket

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For other metadata in ocfs2, metaecc is checked in ocfs2_read_blocks
with io_mutex held. While for xattr bucket, it is calculated by
the whole buckets. So we have to add a spin_lock to prevent multiple
processes calculating metaecc.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
Tested-by: Tristan Ye <tristan.ye@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Tao Ma
2009-02-24 17:40:26 -08:00
committed by Mark Fasheh
parent 89a907afe0
commit c8b9cf9a7c
3 changed files with 8 additions and 0 deletions
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fs/ocfs2/super.c
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@@ -1747,6 +1747,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
INIT_LIST_HEAD(&osb->blocked_lock_list);
osb->blocked_lock_count = 0;
spin_lock_init(&osb->osb_lock);
spin_lock_init(&osb->osb_xattr_lock);
ocfs2_init_inode_steal_slot(osb);
atomic_set(&osb->alloc_stats.moves, 0);