For all RAID profiles in btrfs_alloc_chunk() we're doing a sanity check if
the number of stripes is smaller than the minimal number of stripes
needed for this profile.
Consolidate this per-profile check to a single check after assigning the
number of stripes to further reduce code.
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>
---
volumes.c | 13 ++-----------
1 file changed, 2 insertions(+), 11 deletions(-)
diff --git a/volumes.c b/volumes.c
index 80b4b373f012..80144a763b72 100644
--- a/volumes.c
+++ b/volumes.c
@@ -1133,36 +1133,27 @@ int btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
ctl.type == BTRFS_RAID_RAID1C3 ||
ctl.type == BTRFS_RAID_RAID1C4) {
ctl.num_stripes = min(ctl.min_stripes, ctl.total_devs);
- if (ctl.num_stripes < ctl.min_stripes)
- return -ENOSPC;
}
if (ctl.type == BTRFS_RAID_RAID0) {
ctl.num_stripes = min(ctl.max_stripes, ctl.total_devs);
ctl.min_stripes = btrfs_raid_profile_table[ctl.type].min_stripes;
}
if (ctl.type == BTRFS_RAID_RAID10) {
- ctl.min_stripes = btrfs_raid_profile_table[ctl.type].min_stripes;
ctl.num_stripes = min(ctl.max_stripes, ctl.total_devs);
- if (ctl.num_stripes < ctl.min_stripes)
- return -ENOSPC;
ctl.num_stripes &= ~(u32)1;
}
if (ctl.type == BTRFS_RAID_RAID5) {
- ctl.min_stripes = btrfs_raid_profile_table[ctl.type].min_stripes;
ctl.num_stripes = min(ctl.max_stripes, ctl.total_devs);
- if (ctl.num_stripes < ctl.min_stripes)
- return -ENOSPC;
ctl.stripe_len = find_raid56_stripe_len(ctl.num_stripes - 1,
btrfs_super_stripesize(info->super_copy));
}
if (ctl.type == BTRFS_RAID_RAID6) {
- ctl.min_stripes = btrfs_raid_profile_table[ctl.type].min_stripes;
ctl.num_stripes = min(ctl.max_stripes, ctl.total_devs);
- if (ctl.num_stripes < ctl.min_stripes)
- return -ENOSPC;
ctl.stripe_len = find_raid56_stripe_len(ctl.num_stripes - 2,
btrfs_super_stripesize(info->super_copy));
}
+ if (ctl.num_stripes < ctl.min_stripes)
+ return -ENOSPC;
/* we don't want a chunk larger than 10% of the FS */
percent_max = div_factor(btrfs_super_total_bytes(info->super_copy), 1);
--
2.26.2
