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| author | Chris Mason <chris.mason@oracle.com> | 2008-07-17 12:54:40 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:04:04 -0400 |
| commit | ee6e6504e147a59a9f4d582662c105e9d72ae638 (patch) | |
| tree | be932cc04abb860ed76ab8d4c4c28353ed50bebb /fs/btrfs/extent-tree.c | |
| parent | ba1da2f442ec91a1534afa893f9bef7e33056ace (diff) | |
| download | op-kernel-dev-ee6e6504e147a59a9f4d582662c105e9d72ae638.zip op-kernel-dev-ee6e6504e147a59a9f4d582662c105e9d72ae638.tar.gz | |
Add a per-inode lock around btrfs_drop_extents
btrfs_drop_extents is always called with a range lock held on the inode.
But, it may operate on extents outside that range as it drops and splits
them.
This patch adds a per-inode mutex that is held while calling
btrfs_drop_extents and while inserting new extents into the tree. It
prevents races from two procs working against adjacent ranges in the tree.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 343d110..4036c62b 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -1671,6 +1671,8 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, ret = __free_extent(trans, root, bytenr, num_bytes, root_objectid, ref_generation, owner_objectid, owner_offset, pin, pin == 0); + + finish_current_insert(trans, root->fs_info->extent_root); pending_ret = del_pending_extents(trans, root->fs_info->extent_root); return ret ? ret : pending_ret; } |
