From 2422547e99f99f952d1a37f26b63289f749d5fcd Mon Sep 17 00:00:00 2001 From: Johannes Thumshirn Date: Mon, 13 May 2024 18:01:43 +0200 Subject: btrfs: remove raid-stripe-tree encoding field from stripe_extent 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 Signed-off-by: David Sterba --- include/uapi/linux/btrfs_tree.h | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/btrfs_tree.h b/include/uapi/linux/btrfs_tree.h index c7636331e566..fc29d273845d 100644 --- a/include/uapi/linux/btrfs_tree.h +++ b/include/uapi/linux/btrfs_tree.h @@ -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) -- cgit v1.2.3