diff options
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 01c6fca..f935fad 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1822,6 +1822,10 @@ static void btrfs_clear_bit_hook(struct inode *inode, /* * extent_io.c merge_bio_hook, this must check the chunk tree to make sure * we don't create bios that span stripes or chunks + * + * return 1 if page cannot be merged to bio + * return 0 if page can be merged to bio + * return error otherwise */ int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset, size_t size, struct bio *bio, @@ -1840,8 +1844,8 @@ int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset, map_length = length; ret = btrfs_map_block(root->fs_info, rw, logical, &map_length, NULL, 0); - /* Will always return 0 with map_multi == NULL */ - BUG_ON(ret < 0); + if (ret < 0) + return ret; if (map_length < length + size) return 1; return 0; |
