TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

btrfs: remove raid-stripe-tree encoding field from stripe_extent

Browse Source 
Remove the encoding field from 'struct btrfs_stripe_extent'. It was
originally intended to encode the RAID type as well as if we're a data
or a parity stripe.

But the RAID type can be inferred form the block-group and the data vs.
parity differentiation can be done easier with adding a new key type
for parity stripes in the RAID stripe tree.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Johannes Thumshirn
2024-05-13 18:01:43 +02:00
committed by David Sterba
parent e2c1887329
commit 2422547e99
6 changed files with 2 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/uapi/linux/btrfs_tree.h
+1 -13
View File
@@ -747,21 +747,9 @@ struct btrfs_raid_stride {
__le64 physical;
} __attribute__ ((__packed__));
/* The stripe_extent::encoding, 1:1 mapping of enum btrfs_raid_types. */
#define BTRFS_STRIPE_RAID0 1
#define BTRFS_STRIPE_RAID1 2
#define BTRFS_STRIPE_DUP 3
#define BTRFS_STRIPE_RAID10 4
#define BTRFS_STRIPE_RAID5 5
#define BTRFS_STRIPE_RAID6 6
#define BTRFS_STRIPE_RAID1C3 7
#define BTRFS_STRIPE_RAID1C4 8
struct btrfs_stripe_extent {
__u8 encoding;
__u8 reserved[7];
/* An array of raid strides this stripe is composed of. */
struct btrfs_raid_stride strides[];
__DECLARE_FLEX_ARRAY(struct btrfs_raid_stride, strides);
} __attribute__ ((__packed__));
#define BTRFS_HEADER_FLAG_WRITTEN (1ULL << 0)