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authorMartin K. Petersen <martin.petersen@oracle.com>2014-09-26 19:20:03 -0400
committerJens Axboe <axboe@fb.com>2014-09-27 09:14:51 -0600
commit3aec2f41a8baeb70aa77556a4e4dcec7d9d70b4d (patch)
tree2725a81cae556798bd3f363c4e8e5595c1ce1aaf /include/linux/blkdev.h
parent8288f496eb1b1905c425e92eaf1abbb29119217b (diff)
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block: Add a disk flag to block integrity profile
So far we have relied on the app tag size to determine whether a disk has been formatted with T10 protection information or not. However, not all target devices provide application tag storage. Add a flag to the block integrity profile that indicates whether the disk has been formatted with protection information. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Sagi Grimberg <sagig@dev.mellanox.co.il> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index cf92eb0..4600fc6 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1461,6 +1461,7 @@ static inline uint64_t rq_io_start_time_ns(struct request *req)
enum blk_integrity_flags {
BLK_INTEGRITY_VERIFY = 1 << 0,
BLK_INTEGRITY_GENERATE = 1 << 1,
+ BLK_INTEGRITY_DEVICE_CAPABLE = 1 << 2,
};
struct blk_integrity_iter {
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