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authorYan <yanzheng@21cn.com>2008-07-24 12:18:16 -0400
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:04:05 -0400
commit974e35a82d022434efa50fe5f805ae14c542ba8c (patch)
treebe21c7139c573ad57d69cd81344161a6b5e21cef /fs/btrfs/extent-tree.c
parent45467261edb590fd5a2d676d9686edb82762fb3f (diff)
downloadop-kernel-dev-974e35a82d022434efa50fe5f805ae14c542ba8c.zip
op-kernel-dev-974e35a82d022434efa50fe5f805ae14c542ba8c.tar.gz
Btrfs: Properly release lock in pin_down_bytes
When buffer isn't uptodate, pin_down_bytes may leave the tree locked after it returns. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
-rw-r--r--fs/btrfs/extent-tree.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index e6a3ba9..cdfb4ff 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1485,8 +1485,8 @@ static int pin_down_bytes(struct btrfs_root *root, u64 bytenr, u32 num_bytes,
struct extent_buffer *buf;
buf = btrfs_find_tree_block(root, bytenr, num_bytes);
if (buf) {
- if (btrfs_try_tree_lock(buf) &&
- btrfs_buffer_uptodate(buf, 0)) {
+ if (btrfs_buffer_uptodate(buf, 0) &&
+ btrfs_try_tree_lock(buf)) {
u64 transid =
root->fs_info->running_transaction->transid;
u64 header_transid =
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