diff options
Diffstat (limited to 'include/linux/raid/raid10.h')
| -rw-r--r-- | include/linux/raid/raid10.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/raid/raid10.h b/include/linux/raid/raid10.h index b1103298a8c2cb..c41e56a7c09080 100644 --- a/include/linux/raid/raid10.h +++ b/include/linux/raid/raid10.h @@ -24,11 +24,16 @@ struct r10_private_data_s { int far_copies; /* number of copies layed out * at large strides across drives */ + int far_offset; /* far_copies are offset by 1 stripe + * instead of many + */ int copies; /* near_copies * far_copies. * must be <= raid_disks */ sector_t stride; /* distance between far copies. - * This is size / far_copies + * This is size / far_copies unless + * far_offset, in which case it is + * 1 stripe. */ int chunk_shift; /* shift from chunks to sectors */ |