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[v7,11/13] Btrfs: don't return space for dedup extent

Message ID 1381726796-27191-12-git-send-email-bo.li.liu@oracle.com (mailing list archive)
State New, archived
Headers show

Commit Message

Liu Bo Oct. 14, 2013, 4:59 a.m. UTC 
If the ordered extent had an IOERR or something else went wrong we need to
return the space for this ordered extent back to the allocator, but if the
extent is marked as a dedup one, we don't free the space because we just
use the existing space instead of allocating new space.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
---
 fs/btrfs/inode.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
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Patch

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 00fd6e9..6ab6246 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3190,6 +3190,7 @@  out:
 		 * truncated case if we didn't write out the extent at all.
 		 */
 		if ((ret || !logical_len) &&
+		    !ordered_extent->dedup &&
 		    !test_bit(BTRFS_ORDERED_NOCOW, &ordered_extent->flags) &&
 		    !test_bit(BTRFS_ORDERED_PREALLOC, &ordered_extent->flags))
 			btrfs_free_reserved_extent(root, ordered_extent->start,