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Btrfs: Simplify num_stripes's calculation logical for __btrfs_alloc_chunk()

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We can use this simple method to make source more readable.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Zhao Lei
2010-03-25 12:32:59 +00:00
committed by Chris Mason
parent ab59381ea4
commit f3eae7e8a5
1 changed files with 2 additions and 2 deletions
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4
fs/btrfs/volumes.c
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@@ -2198,9 +2198,9 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
min_stripes = 2; min_stripes = 2;
} }
if (type & (BTRFS_BLOCK_GROUP_RAID1)) { if (type & (BTRFS_BLOCK_GROUP_RAID1)) {
num_stripes = min_t(u64, 2, fs_devices->rw_devices); if (fs_devices->rw_devices < 2)
if (num_stripes < 2)
return -ENOSPC; return -ENOSPC;
num_stripes = 2;
min_stripes = 2; min_stripes = 2;
} }
if (type & (BTRFS_BLOCK_GROUP_RAID10)) { if (type & (BTRFS_BLOCK_GROUP_RAID10)) {