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| author | Yan Zheng <zheng.yan@oracle.com> | 2009-02-12 14:14:53 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2009-02-12 14:14:53 -0500 |
| commit | 2456242530a21cfee82646ebeeda65d3f74faa4c (patch) | |
| tree | c0e8f5eda96cefeb44a48f05a248ea22b4259ad2 /fs/btrfs/extent-tree.c | |
| parent | 4008c04a07c73ec3cb1be4c1391d2159a8f75d6d (diff) | |
| download | linux-2456242530a21cfee82646ebeeda65d3f74faa4c.tar.gz | |
Btrfs: hold trans_mutex when using btrfs_record_root_in_trans
btrfs_record_root_in_trans needs the trans_mutex held to make sure two callers don't race to setup the root in a given transaction. This adds it to all the places that were missing it. Signed-off-by: Yan Zheng <zheng.yan@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 cd86bffbdc9f..0a5d796c9f7e 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -5658,7 +5658,9 @@ static noinline int relocate_one_extent(struct btrfs_root *extent_root, prev_block = block_start; } + mutex_lock(&extent_root->fs_info->trans_mutex); btrfs_record_root_in_trans(found_root); + mutex_unlock(&extent_root->fs_info->trans_mutex); if (ref_path->owner_objectid >= BTRFS_FIRST_FREE_OBJECTID) { /* * try to update data extent references while |