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authorJens Axboe <jens.axboe@oracle.com>2009-04-07 08:59:11 +0200
committerJens Axboe <jens.axboe@oracle.com>2009-04-07 08:59:11 +0200
commit2385327725419a76cfbca7258abd95908b8ba9eb (patch)
treedee9c8167092707fbd3f1b1c5fdadc33ccf924a5
parent75e50984f062de2abc4bd84c642923e2c48ce2ae (diff)
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block: remove unused REQ_UNPLUG
The request inherits the unplug flag from the bio, but it isn't actually used. The bio flag stops at __make_request(), which tells it to unplug after submission. Passing it on to the request doesn't make any sense. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
-rw-r--r--block/blk-core.c2
-rw-r--r--include/linux/blkdev.h2
2 files changed, 0 insertions, 4 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index 3688abf..43fdedc 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1123,8 +1123,6 @@ void init_request_from_bio(struct request *req, struct bio *bio)
if (bio_sync(bio))
req->cmd_flags |= REQ_RW_SYNC;
- if (bio_unplug(bio))
- req->cmd_flags |= REQ_UNPLUG;
if (bio_rw_meta(bio))
req->cmd_flags |= REQ_RW_META;
if (bio_noidle(bio))
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index e036609..ba54c83 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -117,7 +117,6 @@ enum rq_flag_bits {
__REQ_RW_META, /* metadata io request */
__REQ_COPY_USER, /* contains copies of user pages */
__REQ_INTEGRITY, /* integrity metadata has been remapped */
- __REQ_UNPLUG, /* unplug queue on submission */
__REQ_NOIDLE, /* Don't anticipate more IO after this one */
__REQ_NR_BITS, /* stops here */
};
@@ -145,7 +144,6 @@ enum rq_flag_bits {
#define REQ_RW_META (1 << __REQ_RW_META)
#define REQ_COPY_USER (1 << __REQ_COPY_USER)
#define REQ_INTEGRITY (1 << __REQ_INTEGRITY)
-#define REQ_UNPLUG (1 << __REQ_UNPLUG)
#define REQ_NOIDLE (1 << __REQ_NOIDLE)
#define BLK_MAX_CDB 16