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| author | Josef Bacik <jbacik@fusionio.com> | 2013-10-25 16:19:08 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2013-11-11 22:07:49 -0500 |
| commit | 02ecd2c278471a3a7fd255662df92861c6759ebf (patch) | |
| tree | c0d87c47214726e180318fc12772cfb880e5edb0 /fs/btrfs/inode.c | |
| parent | 0ef8b726075aa6931ddf1c16f5bae043eef184f9 (diff) | |
| download | lwn-02ecd2c278471a3a7fd255662df92861c6759ebf.tar.gz lwn-02ecd2c278471a3a7fd255662df92861c6759ebf.zip | |
Btrfs: do not bug_on if we try to cow a free space cache inode
We can just return an error and we'll bail out properly. We still want to catch
this case to make sure we don't have a bug somewhere, so just warn if this pops
up. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index f1fbf903bf9b..a44ca6a4feff 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -843,7 +843,10 @@ static noinline int cow_file_range(struct inode *inode, struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree; int ret = 0; - BUG_ON(btrfs_is_free_space_inode(inode)); + if (btrfs_is_free_space_inode(inode)) { + WARN_ON_ONCE(1); + return -EINVAL; + } num_bytes = ALIGN(end - start + 1, blocksize); num_bytes = max(blocksize, num_bytes); |