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| author | Liu Bo <bo.li.liu@oracle.com> | 2013-03-04 16:25:40 +0000 |
|---|---|---|
| committer | Josef Bacik <jbacik@fusionio.com> | 2013-03-04 16:33:23 -0500 |
| commit | 0f788c58194e4ccc5b3ab23f872c5e18542335e4 (patch) | |
| tree | 5e950eb614b23cef93e0348e94ed3e65ff1abe64 | |
| parent | 288189471d7e12fb22c37870e151833f438deea8 (diff) | |
| download | linux-stable-0f788c58194e4ccc5b3ab23f872c5e18542335e4.tar.gz linux-stable-0f788c58194e4ccc5b3ab23f872c5e18542335e4.tar.bz2 linux-stable-0f788c58194e4ccc5b3ab23f872c5e18542335e4.zip | |
Btrfs: do not BUG_ON on aborted situation
Btrfs balance can easily hit BUG_ON in these places, but we want
to it bail out gracefully after we force the whole filesystem to
readonly. So we use btrfs_std_error hook in place of BUG_ON.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
| -rw-r--r-- | fs/btrfs/relocation.c | 6 | ||||
| -rw-r--r-- | fs/btrfs/volumes.c | 9 |
2 files changed, 12 insertions, 3 deletions
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index 9d13786eec73..3ebe87977aae 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -3771,7 +3771,11 @@ static noinline_for_stack int relocate_block_group(struct reloc_control *rc) while (1) { progress++; trans = btrfs_start_transaction(rc->extent_root, 0); - BUG_ON(IS_ERR(trans)); + if (IS_ERR(trans)) { + err = PTR_ERR(trans); + trans = NULL; + break; + } restart: if (update_backref_cache(trans, &rc->backref_cache)) { btrfs_end_transaction(trans, rc->extent_root); diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 35bb2d4ed29f..9ff454df6756 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2379,7 +2379,11 @@ static int btrfs_relocate_chunk(struct btrfs_root *root, return ret; trans = btrfs_start_transaction(root, 0); - BUG_ON(IS_ERR(trans)); + if (IS_ERR(trans)) { + ret = PTR_ERR(trans); + btrfs_std_error(root->fs_info, ret); + return ret; + } lock_chunks(root); @@ -3050,7 +3054,8 @@ static void __cancel_balance(struct btrfs_fs_info *fs_info) unset_balance_control(fs_info); ret = del_balance_item(fs_info->tree_root); - BUG_ON(ret); + if (ret) + btrfs_std_error(fs_info, ret); atomic_set(&fs_info->mutually_exclusive_operation_running, 0); } |