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Btrfs: Add delayed iput

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iput() can trigger new transactions if we are dropping the
final reference, so calling it in btrfs_commit_transaction
may end up deadlock. This patch adds delayed iput to avoid
the issue.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Yan, Zheng
2009-11-12 09:36:34 +00:00
committed by Chris Mason
parent f34f57a3ab
commit 24bbcf0442
9 changed files with 90 additions and 18 deletions
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4
fs/btrfs/super.c
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@@ -405,8 +405,8 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
return 0;
}
btrfs_start_delalloc_inodes(root);
btrfs_wait_ordered_extents(root, 0);
btrfs_start_delalloc_inodes(root, 0);
btrfs_wait_ordered_extents(root, 0, 0);
trans = btrfs_start_transaction(root, 1);
ret = btrfs_commit_transaction(trans, root);