block: seperate bio/request unplug and sync bits

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

2 files changed, 13 insertions, 7 deletions

diff --git a/include/linux/bio.h b/include/linux/bio.h
index 5175aa3103c6..f53568c5852e 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -163,12 +163,15 @@ struct bio {
 #define BIO_RW          0       /* Must match RW in req flags (blkdev.h) */
 #define BIO_RW_AHEAD    1       /* Must match FAILFAST in req flags */
 #define BIO_RW_BARRIER  2
-#define BIO_RW_SYNC     3
-#define BIO_RW_META     4
-#define BIO_RW_DISCARD  5
-#define BIO_RW_FAILFAST_DEV             6
-#define BIO_RW_FAILFAST_TRANSPORT       7
-#define BIO_RW_FAILFAST_DRIVER          8
+#define BIO_RW_SYNCIO   3
+#define BIO_RW_UNPLUG   4
+#define BIO_RW_META     5
+#define BIO_RW_DISCARD  6
+#define BIO_RW_FAILFAST_DEV             7
+#define BIO_RW_FAILFAST_TRANSPORT       8
+#define BIO_RW_FAILFAST_DRIVER          9
+
+#define BIO_RW_SYNC     (BIO_RW_SYNCIO | BIO_RW_UNPLUG)
 
 /*
  * upper 16 bits of bi_rw define the io priority of this bio
@@ -194,7 +197,8 @@ struct bio {
 #define bio_segments(bio)       ((bio)->bi_vcnt - (bio)->bi_idx)
 #define bio_sectors(bio)        ((bio)->bi_size >> 9)
 #define bio_barrier(bio)        ((bio)->bi_rw & (1 << BIO_RW_BARRIER))
-#define bio_sync(bio)           ((bio)->bi_rw & (1 << BIO_RW_SYNC))
+#define bio_sync(bio)           ((bio)->bi_rw & (1 << BIO_RW_SYNCIO))
+#define bio_unplug(bio)         ((bio)->bi_rw & (1 << BIO_RW_UNPLUG))
 #define bio_failfast_dev(bio)   ((bio)->bi_rw & (1 << BIO_RW_FAILFAST_DEV))
 #define bio_failfast_transport(bio)     \
         ((bio)->bi_rw & (1 << BIO_RW_FAILFAST_TRANSPORT))
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 044467ef7b11..75426e4b8cdf 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -108,6 +108,7 @@ 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_NR_BITS,          /* stops here */
 };
 
@@ -134,6 +135,7 @@ 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 BLK_MAX_CDB     16