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btrfs-progs: use minimal number of stripes from btrfs_raid_attr

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Both btrfs_raid_attr and btrfs_raid_profile define the minimal number of
stripes for each raid profile.

The difference is in btrfs_raid_attr the number of stripes is called
devs_min and in btrfs_raid_profile its called min_stripes.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Johannes Thumshirn 2020-06-23 16:10:17 +02:00 committed by David Sterba
parent 6b2d7c799c
commit 563d8a1b4f
1 changed files with 4 additions and 11 deletions
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15
volumes.c
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@ -1001,52 +1001,42 @@ error:
static const struct btrfs_raid_profile {
int num_stripes;
int max_stripes;
int min_stripes;
} btrfs_raid_profile_table[BTRFS_NR_RAID_TYPES] = {
[BTRFS_RAID_RAID10] = {
.num_stripes = 0,
.max_stripes = 0,
.min_stripes = 4,
},
[BTRFS_RAID_RAID1] = {
.num_stripes = 0,
.max_stripes = 0,
.min_stripes = 2,
},
[BTRFS_RAID_RAID1C3] = {
.num_stripes = 0,
.max_stripes = 0,
.min_stripes = 3,
},
[BTRFS_RAID_RAID1C4] = {
.num_stripes = 0,
.max_stripes = 0,
.min_stripes = 4,
},
[BTRFS_RAID_DUP] = {
.num_stripes = 2,
.max_stripes = 0,
.min_stripes = 2,
},
[BTRFS_RAID_RAID0] = {
.num_stripes = 0,
.max_stripes = 0,
.min_stripes = 2,
},
[BTRFS_RAID_SINGLE] = {
.num_stripes = 1,
.max_stripes = 0,
.min_stripes = 1,
},
[BTRFS_RAID_RAID5] = {
.num_stripes = 0,
.max_stripes = 0,
.min_stripes = 2,
},
[BTRFS_RAID_RAID6] = {
.num_stripes = 0,
.max_stripes = 0,
.min_stripes = 3,
},
};
@ -1056,11 +1046,14 @@ static void init_alloc_chunk_ctl(struct btrfs_fs_info *info,
int type = ctl->type;
ctl->num_stripes = btrfs_raid_profile_table[type].num_stripes;
ctl->min_stripes = btrfs_raid_profile_table[type].min_stripes;
ctl->min_stripes = btrfs_raid_array[type].devs_min;
ctl->sub_stripes = btrfs_raid_array[type].sub_stripes;
ctl->stripe_len = BTRFS_STRIPE_LEN;
switch (type) {
case BTRFS_RAID_DUP:
ctl->min_stripes = 2;
break;
case BTRFS_RAID_RAID1:
case BTRFS_RAID_RAID1C3:
case BTRFS_RAID_RAID1C4: