From: Josef Bacik Date: Tue, 25 Sep 2012 19:26:16 +0000 (-0400) Subject: Btrfs: do not hold the file extent leaf locked when adding extent item X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=ce1953325662fa597197ce728e4195582fc21c8d;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git Btrfs: do not hold the file extent leaf locked when adding extent item For some reason we unlock everything except the leaf we are on, set the path blocking and then add the extent item for the extent we just finished writing. I can't for the life of me figure out why we would want to do this, and the history doesn't really indicate that there was a real reason for it, so just remove it. This will reduce our tree lock contention on heavy writes. Thanks, Signed-off-by: Josef Bacik --- diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index e355eb0aea1e..d24b65014612 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1822,10 +1822,8 @@ static int insert_reserved_file_extent(struct btrfs_trans_handle *trans, btrfs_set_file_extent_encryption(leaf, fi, encryption); btrfs_set_file_extent_other_encoding(leaf, fi, other_encoding); - btrfs_unlock_up_safe(path, 1); - btrfs_set_lock_blocking(leaf); - btrfs_mark_buffer_dirty(leaf); + btrfs_release_path(path); inode_add_bytes(inode, num_bytes);