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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>
This commit is contained in:
Yan 2008-07-24 12:18:16 -04:00 committed by Chris Mason
parent 45467261ed
commit 974e35a82d
1 changed files with 2 additions and 2 deletions
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4
fs/btrfs/extent-tree.c
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@ -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 =