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authorMiao Xie <miaox@cn.fujitsu.com>2010-02-02 03:46:44 -0500
committerChris Mason <chris.mason@oracle.com>2010-02-04 11:31:44 -0500
commitd7ce5843bb28ada6845ab2ae8510ba3f12d33154 (patch)
treec7468abdcaa1d59d789af027984abfdc1bda5248 /fs/btrfs/relocation.c
parent014e4ac4f7d9c981750491fa40ea35efadc9ed49 (diff)
Btrfs: remove BUG_ON() due to mounting bad filesystem
Mounting a bad filesystem caused a BUG_ON(). The following is steps to reproduce it. # mkfs.btrfs /dev/sda2 # mount /dev/sda2 /mnt # mkfs.btrfs /dev/sda1 /dev/sda2 (the program says that /dev/sda2 was mounted, and then exits. ) # umount /mnt # mount /dev/sda1 /mnt At the third step, mkfs.btrfs exited in the way of make filesystem. So the initialization of the filesystem didn't finish. So the filesystem was bad, and it caused BUG_ON() when mounting it. But BUG_ON() should be called by the wrong code, not user's operation, so I think it is a bug of btrfs. This patch fixes it. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/relocation.c')
-rw-r--r--fs/btrfs/relocation.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index ed3e4a2ec2c8..ab7ab5318745 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3764,7 +3764,8 @@ out:
3764 BTRFS_DATA_RELOC_TREE_OBJECTID); 3764 BTRFS_DATA_RELOC_TREE_OBJECTID);
3765 if (IS_ERR(fs_root)) 3765 if (IS_ERR(fs_root))
3766 err = PTR_ERR(fs_root); 3766 err = PTR_ERR(fs_root);
3767 btrfs_orphan_cleanup(fs_root); 3767 else
3768 btrfs_orphan_cleanup(fs_root);
3768 } 3769 }
3769 return err; 3770 return err;
3770} 3771}