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btrfs: use raid_attr table for btrfs_bg_type_to_factor
author
David Sterba
<dsterba@suse.com>
Fri, 17 May 2019 09:43:31 +0000
(11:43 +0200)
committer
David Sterba
<dsterba@suse.com>
Mon, 1 Jul 2019 11:34:57 +0000
(13:34 +0200)
The factor is the number of copies.
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/volumes.c
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diff --git
a/fs/btrfs/volumes.c
b/fs/btrfs/volumes.c
index
71add22
..
bbc195c
100644
(file)
--- a/
fs/btrfs/volumes.c
+++ b/
fs/btrfs/volumes.c
@@
-7586,10
+7586,9
@@
void btrfs_reset_fs_info_ptr(struct btrfs_fs_info *fs_info)
*/
int btrfs_bg_type_to_factor(u64 flags)
{
- if (flags & (BTRFS_BLOCK_GROUP_DUP | BTRFS_BLOCK_GROUP_RAID1 |
- BTRFS_BLOCK_GROUP_RAID10))
- return 2;
- return 1;
+ const int index = btrfs_bg_flags_to_raid_index(flags);
+
+ return btrfs_raid_array[index].ncopies;
}