diff options
Diffstat (limited to 'fs/btrfs/raid56.h')
| -rw-r--r-- | fs/btrfs/raid56.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/btrfs/raid56.h b/fs/btrfs/raid56.h index 9fae97b7a2a5..e38da4fa76d6 100644 --- a/fs/btrfs/raid56.h +++ b/fs/btrfs/raid56.h @@ -126,6 +126,17 @@ struct btrfs_raid_bio { /* Allocated with real_stripes-many pointers for finish_*() calls */ void **finish_pointers; + + /* + * The bitmap recording where IO errors happened. + * Each bit is corresponding to one sector in either bio_sectors[] or + * stripe_sectors[] array. + * + * The reason we don't use another bit in sector_ptr is, we have two + * arrays of sectors, and a lot of IO can use sectors in both arrays. + * Thus making it much harder to iterate. + */ + unsigned long *error_bitmap; }; /* |