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authorChristoph Hellwig <hch@lst.de>2016-10-20 15:12:11 +0200
committerJens Axboe <axboe@fb.com>2016-10-28 08:45:17 -0600
commit188bd2b16b3c6ea87a90df20f33db0adcdb75f0c (patch)
tree6ccc9bf7bd7dbd03f73e3ed54ea997259400e588 /include/linux
parentbd1c1c21741cbd6e894960bcbc8b36f719590064 (diff)
block: move REQ_RAHEAD to common flags
The information that am I/O is a read-ahead can be useful for drivers. In fact the NVMe driver already checks it, even if it won't ever be set at the moment. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Shaun Tancheff <shaun.tancheff@seagate.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/blk_types.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index b54142534793..44f9bca332e5 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -163,9 +163,9 @@ enum rq_flag_bits {
__REQ_INTEGRITY, /* I/O includes block integrity payload */
__REQ_FUA, /* forced unit access */
__REQ_PREFLUSH, /* request for cache flush */
+ __REQ_RAHEAD, /* read ahead, can fail anytime */
/* bio only flags */
- __REQ_RAHEAD, /* read ahead, can fail anytime */
__REQ_THROTTLED, /* This bio has already been subjected to
* throttling rules. Don't do it again. */
@@ -205,7 +205,7 @@ enum rq_flag_bits {
(REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER)
#define REQ_COMMON_MASK \
(REQ_FAILFAST_MASK | REQ_SYNC | REQ_META | REQ_PRIO | REQ_NOIDLE | \
- REQ_PREFLUSH | REQ_FUA | REQ_INTEGRITY | REQ_NOMERGE)
+ REQ_PREFLUSH | REQ_FUA | REQ_INTEGRITY | REQ_NOMERGE | REQ_RAHEAD)
#define REQ_CLONE_MASK REQ_COMMON_MASK
/* This mask is used for both bio and request merge checking */