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Merge branch 'md-next' into md-linus

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This commit is contained in:
Shaohua Li
2016-12-13 12:40:15 -08:00
parent b78b499a67 2953079c69
commit 20737738d3
16 changed files with 3438 additions and 1271 deletions
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7
include/uapi/linux/raid/md_p.h
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@@ -84,6 +84,10 @@
#define MD_DISK_CANDIDATE 5 /* disk is added as spare (local) until confirmed
* For clustered enviroments only.
*/
#define MD_DISK_FAILFAST 10 /* Send REQ_FAILFAST if there are multiple
* devices available - and don't try to
* correct read errors.
*/
#define MD_DISK_WRITEMOSTLY 9 /* disk is "write-mostly" is RAID1 config.
* read requests will only be sent here in
@@ -265,8 +269,9 @@ struct mdp_superblock_1 {
__le32 dev_number; /* permanent identifier of this device - not role in raid */
__le32 cnt_corrected_read; /* number of read errors that were corrected by re-writing */
__u8 device_uuid[16]; /* user-space setable, ignored by kernel */
__u8 devflags; /* per-device flags. Only one defined...*/
__u8 devflags; /* per-device flags. Only two defined...*/
#define WriteMostly1 1 /* mask for writemostly flag in above */
#define FailFast1 2 /* Should avoid retries and fixups and just fail */
/* Bad block log. If there are any bad blocks the feature flag is set.
* If offset and size are non-zero, that space is reserved and available
*/