diff options
Diffstat (limited to 'fs/btrfs/volumes.c')
-rw-r--r-- | fs/btrfs/volumes.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 57ab755aca7..6d8dd4438c7 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1509,17 +1509,17 @@ again: if (map->type & BTRFS_BLOCK_GROUP_RAID1) { if (unplug_page || (rw & (1 << BIO_RW))) num_stripes = map->num_stripes; - else if (mirror_num) { + else if (mirror_num) stripe_index = mirror_num - 1; - } else { - u64 orig_stripe_nr = stripe_nr; - stripe_index = do_div(orig_stripe_nr, num_stripes); - } + else + stripe_index = current->pid % map->num_stripes; + } else if (map->type & BTRFS_BLOCK_GROUP_DUP) { if (rw & (1 << BIO_RW)) num_stripes = map->num_stripes; else if (mirror_num) stripe_index = mirror_num - 1; + } else if (map->type & BTRFS_BLOCK_GROUP_RAID10) { int factor = map->num_stripes / map->sub_stripes; @@ -1530,11 +1530,8 @@ again: num_stripes = map->sub_stripes; else if (mirror_num) stripe_index += mirror_num - 1; - else { - u64 orig_stripe_nr = stripe_nr; - stripe_index += do_div(orig_stripe_nr, - map->sub_stripes); - } + else + stripe_index += current->pid % map->sub_stripes; } else { /* * after this do_div call, stripe_nr is the number of stripes |