block: seperate bio/request unplug and sync bits

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

1 files changed, 11 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))