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-rw-r--r--fs/btrfs/super.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 2b44223e98a9..7d20856ae0c4 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1902,7 +1902,7 @@ static inline int btrfs_calc_avail_data_space(struct btrfs_fs_info *fs_info,
u64 type;
u64 avail_space;
u64 min_stripe_size;
- int min_stripes = 1, num_stripes = 1;
+ int min_stripes, num_stripes = 1;
int i = 0, nr_devices;
const struct btrfs_raid_attr *rattr;
@@ -1929,17 +1929,14 @@ static inline int btrfs_calc_avail_data_space(struct btrfs_fs_info *fs_info,
/* calc min stripe number for data space allocation */
type = btrfs_data_alloc_profile(fs_info);
rattr = &btrfs_raid_array[btrfs_bg_flags_to_raid_index(type)];
+ min_stripes = rattr->devs_min;
- if (type & BTRFS_BLOCK_GROUP_RAID0) {
- min_stripes = 2;
+ if (type & BTRFS_BLOCK_GROUP_RAID0)
num_stripes = nr_devices;
- } else if (type & BTRFS_BLOCK_GROUP_RAID1) {
- min_stripes = 2;
+ else if (type & BTRFS_BLOCK_GROUP_RAID1)
num_stripes = 2;
- } else if (type & BTRFS_BLOCK_GROUP_RAID10) {
- min_stripes = 4;
+ else if (type & BTRFS_BLOCK_GROUP_RAID10)
num_stripes = 4;
- }
/* Adjust for more than 1 stripe per device */
min_stripe_size = rattr->dev_stripes * BTRFS_STRIPE_LEN;