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| author | Liu Bo <bo.li.liu@oracle.com> | 2016-06-23 01:31:49 (GMT) |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-07-26 11:52:25 (GMT) |
| commit | 6f034ece3422d8d4fbe0afe7cd8c2ac6438e651e (patch) | |
| tree | 6fdb039ab1960d335bb981df75a8839d5421933b /fs/btrfs/extent_io.c | |
| parent | fba4b697710eb2a4bee456b9d39e9239c66f8bee (diff) | |
| download | linux-6f034ece3422d8d4fbe0afe7cd8c2ac6438e651e.tar.xz | |
Btrfs: cleanup BUG_ON in merge_bio
One can use btrfs-corrupt-block to hit BUG_ON() in merge_bio(),
thus this aims to stop anyone to panic the whole system by using
their btrfs.
Since the error in merge_bio can only come from __btrfs_map_block()
when chunk tree mapping has something insane and __btrfs_map_block()
has already had printed the reason, we can just return errors in
merge_bio.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent_io.c')
| -rw-r--r-- | fs/btrfs/extent_io.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 9aaa544..ea12d0e 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2756,7 +2756,6 @@ static int merge_bio(int rw, struct extent_io_tree *tree, struct page *page, if (tree->ops && tree->ops->merge_bio_hook) ret = tree->ops->merge_bio_hook(rw, page, offset, size, bio, bio_flags); - BUG_ON(ret < 0); return ret; } |