| commit | fa1bcbe0a54c67a293c557a21641565516c96a8f | [log] [tgz] |
|---|---|---|
| author | David Sterba <dsterba@suse.com> | Mon Jun 12 17:29:36 2017 +0200 |
| committer | David Sterba <dsterba@suse.com> | Mon Jun 19 18:26:03 2017 +0200 |
| tree | 1acfdd3535294df2fe7030dda67aebd81148df1a | |
| parent | 1a63143dc18b2c6a2233d1c5afce95205d2676f4 [diff] [blame] |
btrfs: document mandatory order of bio in btrfs_io_bio Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 58b97b6..35327ef 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h
@@ -281,6 +281,10 @@ u8 *csum_allocated; btrfs_io_bio_end_io_t *end_io; struct bvec_iter iter; + /* + * This member must come last, bio_alloc_bioset will allocate enough + * bytes for entire btrfs_io_bio but relies on bio being last. + */ struct bio bio; };