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authorJens Axboe <axboe@kernel.dk>2025-01-13 10:30:33 -0700
committerJens Axboe <axboe@kernel.dk>2025-01-13 10:30:33 -0700
commite7b94c5c6f3b6435206f0e4ef7c5aa4eceae42f9 (patch)
treec8e5e666eb5829d7cde3e2d5f2d66e792ac1cd4d /include
parent170e086ad3997f816d1f551f178a03a626a130b7 (diff)
parentc9b39e51a301af677a1faaab75567077ce902178 (diff)
Merge tag 'md-6.14-20250113' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux into for-6.14/block
Pull MD updates from Song: "1. Reintroduce md-linear, by Yu Kuai. 2. md-bitmap refactor and fix, by Yu Kuai. 3. Replace kmap_atomic with kmap_local_page, by David Reaver." * tag 'md-6.14-20250113' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux: md/md-bitmap: move bitmap_{start, end}write to md upper layer md/raid5: implement pers->bitmap_sector() md: add a new callback pers->bitmap_sector() md/md-bitmap: remove the last parameter for bimtap_ops->endwrite() md/md-bitmap: factor behind write counters out from bitmap_{start/end}write() md: Replace deprecated kmap_atomic() with kmap_local_page() md: reintroduce md-linear
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/raid/md_p.h2
-rw-r--r--include/uapi/linux/raid/md_u.h2
2 files changed, 3 insertions, 1 deletions
diff --git a/include/uapi/linux/raid/md_p.h b/include/uapi/linux/raid/md_p.h
index 5a43c23f53bf..ff47b6f0ba0f 100644
--- a/include/uapi/linux/raid/md_p.h
+++ b/include/uapi/linux/raid/md_p.h
@@ -233,7 +233,7 @@ struct mdp_superblock_1 {
char set_name[32]; /* set and interpreted by user-space */
__le64 ctime; /* lo 40 bits are seconds, top 24 are microseconds or 0*/
- __le32 level; /* 0,1,4,5 */
+ __le32 level; /* 0,1,4,5, -1 (linear) */
__le32 layout; /* only for raid5 and raid10 currently */
__le64 size; /* used size of component devices, in 512byte sectors */
diff --git a/include/uapi/linux/raid/md_u.h b/include/uapi/linux/raid/md_u.h
index 7be89a4906e7..a893010735fb 100644
--- a/include/uapi/linux/raid/md_u.h
+++ b/include/uapi/linux/raid/md_u.h
@@ -103,6 +103,8 @@ typedef struct mdu_array_info_s {
} mdu_array_info_t;
+#define LEVEL_LINEAR (-1)
+
/* we need a value for 'no level specified' and 0
* means 'raid0', so we need something else. This is
* for internal use only