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authorChris Mason <chris.mason@oracle.com>2011-05-26 17:43:59 -0400
committerChris Mason <chris.mason@oracle.com>2011-05-26 17:52:44 -0400
commitc309df07868baa8b05d2a70637096465746fdbb5 (patch)
tree7c1749127d16aa07a1f3a296097f5f314b2a6a42 /fs
parent4cb5300bc839b8a943eb19c9f27f25470e22d0ca (diff)
downloadblackbird-op-linux-c309df07868baa8b05d2a70637096465746fdbb5.tar.gz
blackbird-op-linux-c309df07868baa8b05d2a70637096465746fdbb5.zip
Btrfs: return -ENOMEM in clear_extent_bit
The btrfs releasepage function depends on ENOMEM coming back when it is called atomic. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/extent_io.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index a90c4a12556b..0e0fe0f6ec75 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -485,7 +485,8 @@ int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
again:
if (!prealloc && (mask & __GFP_WAIT)) {
prealloc = alloc_extent_state(mask);
- BUG_ON(!prealloc);
+ if (!prealloc)
+ return -ENOMEM;
}
spin_lock(&tree->lock);
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