26 files changed, 77 insertions, 79 deletions

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index a5c08b082edb..0a8cd3484791 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1114,7 +1114,7 @@ static int atapi_drain_needed(struct request *rq)
         if (likely(rq->cmd_type != REQ_TYPE_BLOCK_PC))
                 return 0;
 
-        if (!blk_rq_bytes(rq) || (rq->cmd_flags & REQ_RW))
+        if (!blk_rq_bytes(rq) || (rq->cmd_flags & REQ_WRITE))
                 return 0;
 
         return atapi_cmd_type(rq->cmd[0]) == ATAPI_MISC;
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 035cefe4045a..65deffde60ac 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -173,7 +173,7 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio)
                 BUG();
                 bio_endio(bio, -ENXIO);
                 return 0;
-        } else if (bio_rw_flagged(bio, BIO_RW_BARRIER)) {
+        } else if (bio->bi_rw & REQ_HARDBARRIER) {
                 bio_endio(bio, -EOPNOTSUPP);
                 return 0;
         } else if (bio->bi_io_vec == NULL) {
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index f1bf79d9bc0a..1b218c6b6820 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -340,7 +340,7 @@ static int brd_make_request(struct request_queue *q, struct bio *bio)
                                                 get_capacity(bdev->bd_disk))
                 goto out;
 
-        if (unlikely(bio_rw_flagged(bio, BIO_RW_DISCARD))) {
+        if (unlikely(bio->bi_rw & REQ_DISCARD)) {
                 err = 0;
                 discard_from_brd(brd, sector, bio->bi_size);
                 goto out;
diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c
index df018990c422..9400845d602e 100644
--- a/drivers/block/drbd/drbd_actlog.c
+++ b/drivers/block/drbd/drbd_actlog.c
@@ -79,8 +79,8 @@ static int _drbd_md_sync_page_io(struct drbd_conf *mdev,
         md_io.error = 0;
 
         if ((rw & WRITE) && !test_bit(MD_NO_BARRIER, &mdev->flags))
-                rw |= (1 << BIO_RW_BARRIER);
-        rw |= ((1<<BIO_RW_UNPLUG) | (1<<BIO_RW_SYNCIO));
+                rw |= REQ_HARDBARRIER;
+        rw |= REQ_UNPLUG | REQ_SYNC;
 
  retry:
         bio = bio_alloc(GFP_NOIO, 1);
@@ -103,11 +103,11 @@ static int _drbd_md_sync_page_io(struct drbd_conf *mdev,
         /* check for unsupported barrier op.
          * would rather check on EOPNOTSUPP, but that is not reliable.
          * don't try again for ANY return value != 0 */
-        if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER) && !ok)) {
+        if (unlikely((bio->bi_rw & REQ_HARDBARRIER) && !ok)) {
                 /* Try again with no barrier */
                 dev_warn(DEV, "Barriers not supported on meta data device - disabling\n");
                 set_bit(MD_NO_BARRIER, &mdev->flags);
-                rw &= ~(1 << BIO_RW_BARRIER);
+                rw &= ~REQ_HARDBARRIER;
                 bio_put(bio);
                 goto retry;
         }
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 7258c95e895e..e2ab13d99d69 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -2425,15 +2425,15 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req)
         /* NOTE: no need to check if barriers supported here as we would
          *       not pass the test in make_request_common in that case
          */
-        if (bio_rw_flagged(req->master_bio, BIO_RW_BARRIER)) {
+        if (req->master_bio->bi_rw & REQ_HARDBARRIER) {
                 dev_err(DEV, "ASSERT FAILED would have set DP_HARDBARRIER\n");
                 /* dp_flags |= DP_HARDBARRIER; */
         }
-        if (bio_rw_flagged(req->master_bio, BIO_RW_SYNCIO))
+        if (req->master_bio->bi_rw & REQ_SYNC)
                 dp_flags |= DP_RW_SYNC;
         /* for now handle SYNCIO and UNPLUG
          * as if they still were one and the same flag */
-        if (bio_rw_flagged(req->master_bio, BIO_RW_UNPLUG))
+        if (req->master_bio->bi_rw & REQ_UNPLUG)
                 dp_flags |= DP_RW_SYNC;
         if (mdev->state.conn >= C_SYNC_SOURCE &&
             mdev->state.conn <= C_PAUSED_SYNC_T)
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index dff48701b84d..cba1deb7b271 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -1180,7 +1180,7 @@ next_bio:
         bio->bi_sector = sector;
         bio->bi_bdev = mdev->ldev->backing_bdev;
         /* we special case some flags in the multi-bio case, see below
-         * (BIO_RW_UNPLUG, BIO_RW_BARRIER) */
+         * (REQ_UNPLUG, REQ_HARDBARRIER) */
         bio->bi_rw = rw;
         bio->bi_private = e;
         bio->bi_end_io = drbd_endio_sec;
@@ -1209,16 +1209,16 @@ next_bio:
                 bios = bios->bi_next;
                 bio->bi_next = NULL;
 
-                /* strip off BIO_RW_UNPLUG unless it is the last bio */
+                /* strip off REQ_UNPLUG unless it is the last bio */
                 if (bios)
-                        bio->bi_rw &= ~(1<<BIO_RW_UNPLUG);
+                        bio->bi_rw &= ~REQ_UNPLUG;
 
                 drbd_generic_make_request(mdev, fault_type, bio);
 
-                /* strip off BIO_RW_BARRIER,
+                /* strip off REQ_HARDBARRIER,
                  * unless it is the first or last bio */
                 if (bios && bios->bi_next)
-                        bios->bi_rw &= ~(1<<BIO_RW_BARRIER);
+                        bios->bi_rw &= ~REQ_HARDBARRIER;
         } while (bios);
         maybe_kick_lo(mdev);
         return 0;
@@ -1233,7 +1233,7 @@ fail:
 }
 
 /**
- * w_e_reissue() - Worker callback; Resubmit a bio, without BIO_RW_BARRIER set
+ * w_e_reissue() - Worker callback; Resubmit a bio, without REQ_HARDBARRIER set
  * @mdev:       DRBD device.
  * @w:          work object.
  * @cancel:     The connection will be closed anyways (unused in this callback)
@@ -1245,7 +1245,7 @@ int w_e_reissue(struct drbd_conf *mdev, struct drbd_work *w, int cancel) __relea
            (and DE_BARRIER_IN_NEXT_EPOCH_ISSUED in the previous Epoch)
            so that we can finish that epoch in drbd_may_finish_epoch().
            That is necessary if we already have a long chain of Epochs, before
-           we realize that BIO_RW_BARRIER is actually not supported */
+           we realize that REQ_HARDBARRIER is actually not supported */
 
         /* As long as the -ENOTSUPP on the barrier is reported immediately
            that will never trigger. If it is reported late, we will just
@@ -1824,14 +1824,14 @@ static int receive_Data(struct drbd_conf *mdev, struct p_header *h)
                 epoch = list_entry(e->epoch->list.prev, struct drbd_epoch, list);
                 if (epoch == e->epoch) {
                         set_bit(DE_CONTAINS_A_BARRIER, &e->epoch->flags);
-                        rw |= (1<<BIO_RW_BARRIER);
+                        rw |= REQ_HARDBARRIER;
                         e->flags |= EE_IS_BARRIER;
                 } else {
                         if (atomic_read(&epoch->epoch_size) > 1 ||
                             !test_bit(DE_CONTAINS_A_BARRIER, &epoch->flags)) {
                                 set_bit(DE_BARRIER_IN_NEXT_EPOCH_ISSUED, &epoch->flags);
                                 set_bit(DE_CONTAINS_A_BARRIER, &e->epoch->flags);
-                                rw |= (1<<BIO_RW_BARRIER);
+                                rw |= REQ_HARDBARRIER;
                                 e->flags |= EE_IS_BARRIER;
                         }
                 }
@@ -1841,10 +1841,10 @@ static int receive_Data(struct drbd_conf *mdev, struct p_header *h)
         dp_flags = be32_to_cpu(p->dp_flags);
         if (dp_flags & DP_HARDBARRIER) {
                 dev_err(DEV, "ASSERT FAILED would have submitted barrier request\n");
-                /* rw |= (1<<BIO_RW_BARRIER); */
+                /* rw |= REQ_HARDBARRIER; */
         }
         if (dp_flags & DP_RW_SYNC)
-                rw |= (1<<BIO_RW_SYNCIO) | (1<<BIO_RW_UNPLUG);
+                rw |= REQ_SYNC | REQ_UNPLUG;
         if (dp_flags & DP_MAY_SET_IN_SYNC)
                 e->flags |= EE_MAY_SET_IN_SYNC;
 
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 654f1ef5cbb0..f761d98a4e90 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -997,7 +997,7 @@ int drbd_make_request_26(struct request_queue *q, struct bio *bio)
          * because of those XXX, this is not yet enabled,
          * i.e. in drbd_init_set_defaults we set the NO_BARRIER_SUPP bit.
          */
-        if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER) && test_bit(NO_BARRIER_SUPP, &mdev->flags))) {
+        if (unlikely(bio->bi_rw & REQ_HARDBARRIER) && test_bit(NO_BARRIER_SUPP, &mdev->flags)) {
                 /* dev_warn(DEV, "Rejecting barrier request as underlying device does not support\n"); */
                 bio_endio(bio, -EOPNOTSUPP);
                 return 0;
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 6120922f459f..fedfdb7d3cdf 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -476,7 +476,7 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio)
         pos = ((loff_t) bio->bi_sector << 9) + lo->lo_offset;
 
         if (bio_rw(bio) == WRITE) {
-                bool barrier = bio_rw_flagged(bio, BIO_RW_BARRIER);
+                bool barrier = (bio->bi_rw & REQ_HARDBARRIER);
                 struct file *file = lo->lo_backing_file;
 
                 if (barrier) {
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 8a549db2aa78..9f3e4454274b 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -1221,7 +1221,7 @@ static int pkt_start_recovery(struct packet_data *pkt)
         pkt->bio->bi_flags = 1 << BIO_UPTODATE;
         pkt->bio->bi_idx = 0;
 
-        BUG_ON(pkt->bio->bi_rw != (1 << BIO_RW));
+        BUG_ON(pkt->bio->bi_rw != REQ_WRITE);
         BUG_ON(pkt->bio->bi_vcnt != pkt->frames);
         BUG_ON(pkt->bio->bi_size != pkt->frames * CD_FRAMESIZE);
         BUG_ON(pkt->bio->bi_end_io != pkt_end_io_packet_write);
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index 2f9470ff8f7c..8be57151f5d6 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -478,7 +478,7 @@ static void process_page(unsigned long data)
                                 le32_to_cpu(desc->local_addr)>>9,
                                 le32_to_cpu(desc->transfer_size));
                         dump_dmastat(card, control);
-                } else if (test_bit(BIO_RW, &bio->bi_rw) &&
+                } else if ((bio->bi_rw & REQ_WRITE) &&
                            le32_to_cpu(desc->local_addr) >> 9 ==
                                 card->init_size) {
                         card->init_size += le32_to_cpu(desc->transfer_size) >> 9;
diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c
index 02712bf045c1..766b3deeb23c 100644
--- a/drivers/ide/ide-cd_ioctl.c
+++ b/drivers/ide/ide-cd_ioctl.c
@@ -454,7 +454,7 @@ int ide_cdrom_packet(struct cdrom_device_info *cdi,
            touch it at all. */
 
         if (cgc->data_direction == CGC_DATA_WRITE)
-                flags |= REQ_RW;
+                flags |= REQ_WRITE;
 
         if (cgc->sense)
                 memset(cgc->sense, 0, sizeof(struct request_sense));
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index c7d0737bb18a..5406b6ea3ad1 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -207,7 +207,7 @@ static void idefloppy_create_rw_cmd(ide_drive_t *drive,
         memcpy(rq->cmd, pc->c, 12);
 
         pc->rq = rq;
-        if (rq->cmd_flags & REQ_RW)
+        if (rq->cmd_flags & REQ_WRITE)
                 pc->flags |= PC_FLAG_WRITING;
 
         pc->flags |= PC_FLAG_DMA_OK;
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 10f457ca6af2..0590c75b0ab6 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -356,7 +356,7 @@ static void dispatch_io(int rw, unsigned int num_regions,
         BUG_ON(num_regions > DM_IO_MAX_REGIONS);
 
         if (sync)
-                rw |= (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG);
+                rw |= REQ_SYNC | REQ_UNPLUG;
 
         /*
          * For multiple regions we need to be careful to rewind
@@ -364,7 +364,7 @@ static void dispatch_io(int rw, unsigned int num_regions,
          */
         for (i = 0; i < num_regions; i++) {
                 *dp = old_pages;
-                if (where[i].count || (rw & (1 << BIO_RW_BARRIER)))
+                if (where[i].count || (rw & REQ_HARDBARRIER))
                         do_region(rw, i, where + i, dp, io);
         }
 
@@ -412,8 +412,8 @@ retry:
         }
         set_current_state(TASK_RUNNING);
 
-        if (io->eopnotsupp_bits && (rw & (1 << BIO_RW_BARRIER))) {
-                rw &= ~(1 << BIO_RW_BARRIER);
+        if (io->eopnotsupp_bits && (rw & REQ_HARDBARRIER)) {
+                rw &= ~REQ_HARDBARRIER;
                 goto retry;
         }
 
@@ -479,8 +479,8 @@ static int dp_init(struct dm_io_request *io_req, struct dpages *dp)
  * New collapsed (a)synchronous interface.
  *
  * If the IO is asynchronous (i.e. it has notify.fn), you must either unplug
- * the queue with blk_unplug() some time later or set the BIO_RW_SYNC bit in
- * io_req->bi_rw. If you fail to do one of these, the IO will be submitted to
+ * the queue with blk_unplug() some time later or set REQ_SYNC in
+io_req->bi_rw. If you fail to do one of these, the IO will be submitted to
  * the disk after q->unplug_delay, which defaults to 3ms in blk-settings.c.
  */
 int dm_io(struct dm_io_request *io_req, unsigned num_regions,
diff --git a/drivers/md/dm-kcopyd.c b/drivers/md/dm-kcopyd.c
index addf83475040..d8587bac5682 100644
--- a/drivers/md/dm-kcopyd.c
+++ b/drivers/md/dm-kcopyd.c
@@ -345,7 +345,7 @@ static int run_io_job(struct kcopyd_job *job)
 {
         int r;
         struct dm_io_request io_req = {
-                .bi_rw = job->rw | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG),
+                .bi_rw = job->rw | REQ_SYNC | REQ_UNPLUG,
                 .mem.type = DM_IO_PAGE_LIST,
                 .mem.ptr.pl = job->pages,
                 .mem.offset = job->offset,
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index ddda531723dc..74136262d654 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1211,7 +1211,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio,
         if (error == -EOPNOTSUPP)
                 goto out;
 
-        if ((error == -EWOULDBLOCK) && bio_rw_flagged(bio, BIO_RW_AHEAD))
+        if ((error == -EWOULDBLOCK) && (bio->bi_rw & REQ_RAHEAD))
                 goto out;
 
         if (unlikely(error)) {
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index e610725db766..d6e28d732b4d 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -284,7 +284,7 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio,
         if (!error)
                 return 0; /* I/O complete */
 
-        if ((error == -EWOULDBLOCK) && bio_rw_flagged(bio, BIO_RW_AHEAD))
+        if ((error == -EWOULDBLOCK) && (bio->bi_rw & REQ_RAHEAD))
                 return error;
 
         if (error == -EOPNOTSUPP)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 1e0e6dd51501..d6f77baeafd6 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -614,7 +614,7 @@ static void dec_pending(struct dm_io *io, int error)
                          */
                         spin_lock_irqsave(&md->deferred_lock, flags);
                         if (__noflush_suspending(md)) {
-                                if (!bio_rw_flagged(io->bio, BIO_RW_BARRIER))
+                                if (!(io->bio->bi_rw & REQ_HARDBARRIER))
                                         bio_list_add_head(&md->deferred,
                                                           io->bio);
                         } else
@@ -626,7 +626,7 @@ static void dec_pending(struct dm_io *io, int error)
                 io_error = io->error;
                 bio = io->bio;
 
-                if (bio_rw_flagged(bio, BIO_RW_BARRIER)) {
+                if (bio->bi_rw & REQ_HARDBARRIER) {
                         /*
                          * There can be just one barrier request so we use
                          * a per-device variable for error reporting.
@@ -1106,7 +1106,7 @@ static struct bio *split_bvec(struct bio *bio, sector_t sector,
 
         clone->bi_sector = sector;
         clone->bi_bdev = bio->bi_bdev;
-        clone->bi_rw = bio->bi_rw & ~(1 << BIO_RW_BARRIER);
+        clone->bi_rw = bio->bi_rw & ~REQ_HARDBARRIER;
         clone->bi_vcnt = 1;
         clone->bi_size = to_bytes(len);
         clone->bi_io_vec->bv_offset = offset;
@@ -1133,7 +1133,7 @@ static struct bio *clone_bio(struct bio *bio, sector_t sector,
 
         clone = bio_alloc_bioset(GFP_NOIO, bio->bi_max_vecs, bs);
         __bio_clone(clone, bio);
-        clone->bi_rw &= ~(1 << BIO_RW_BARRIER);
+        clone->bi_rw &= ~REQ_HARDBARRIER;
         clone->bi_destructor = dm_bio_destructor;
         clone->bi_sector = sector;
         clone->bi_idx = idx;
@@ -1301,7 +1301,7 @@ static void __split_and_process_bio(struct mapped_device *md, struct bio *bio)
 
         ci.map = dm_get_live_table(md);
         if (unlikely(!ci.map)) {
-                if (!bio_rw_flagged(bio, BIO_RW_BARRIER))
+                if (!(bio->bi_rw & REQ_HARDBARRIER))
                         bio_io_error(bio);
                 else
                         if (!md->barrier_error)
@@ -1414,7 +1414,7 @@ static int _dm_request(struct request_queue *q, struct bio *bio)
          * we have to queue this io for later.
          */
         if (unlikely(test_bit(DMF_QUEUE_IO_TO_THREAD, &md->flags)) ||
-            unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
+            unlikely(bio->bi_rw & REQ_HARDBARRIER)) {
                 up_read(&md->io_lock);
 
                 if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags)) &&
@@ -2296,7 +2296,7 @@ static void dm_wq_work(struct work_struct *work)
                 if (dm_request_based(md))
                         generic_make_request(c);
                 else {
-                        if (bio_rw_flagged(c, BIO_RW_BARRIER))
+                        if (c->bi_rw & REQ_HARDBARRIER)
                                 process_barrier(md, c);
                         else
                                 __split_and_process_bio(md, c);
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 7e0e057db9a7..ba19060bcf3f 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -294,7 +294,7 @@ static int linear_make_request (mddev_t *mddev, struct bio *bio)
         dev_info_t *tmp_dev;
         sector_t start_sector;
 
-        if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
+        if (unlikely(bio->bi_rw & REQ_HARDBARRIER)) {
                 md_barrier_request(mddev, bio);
                 return 0;
         }
diff --git a/drivers/md/md.c b/drivers/md/md.c
index cb20d0b0555a..1893af678779 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -353,7 +353,7 @@ static void md_submit_barrier(struct work_struct *ws)
                 /* an empty barrier - all done */
                 bio_endio(bio, 0);
         else {
-                bio->bi_rw &= ~(1<<BIO_RW_BARRIER);
+                bio->bi_rw &= ~REQ_HARDBARRIER;
                 if (mddev->pers->make_request(mddev, bio))
                         generic_make_request(bio);
                 mddev->barrier = POST_REQUEST_BARRIER;
@@ -675,11 +675,11 @@ void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev,
          * if zero is reached.
          * If an error occurred, call md_error
          *
-         * As we might need to resubmit the request if BIO_RW_BARRIER
+         * As we might need to resubmit the request if REQ_HARDBARRIER
          * causes ENOTSUPP, we allocate a spare bio...
          */
         struct bio *bio = bio_alloc(GFP_NOIO, 1);
-        int rw = (1<<BIO_RW) | (1<<BIO_RW_SYNCIO) | (1<<BIO_RW_UNPLUG);
+        int rw = REQ_WRITE | REQ_SYNC | REQ_UNPLUG;
 
         bio->bi_bdev = rdev->bdev;
         bio->bi_sector = sector;
@@ -691,7 +691,7 @@ void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev,
         atomic_inc(&mddev->pending_writes);
         if (!test_bit(BarriersNotsupp, &rdev->flags)) {
                 struct bio *rbio;
-                rw |= (1<<BIO_RW_BARRIER);
+                rw |= REQ_HARDBARRIER;
                 rbio = bio_clone(bio, GFP_NOIO);
                 rbio->bi_private = bio;
                 rbio->bi_end_io = super_written_barrier;
@@ -736,7 +736,7 @@ int sync_page_io(struct block_device *bdev, sector_t sector, int size,
         struct completion event;
         int ret;
 
-        rw |= (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG);
+        rw |= REQ_SYNC | REQ_UNPLUG;
 
         bio->bi_bdev = bdev;
         bio->bi_sector = sector;
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 10597bfec000..fc56e0f21c80 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -67,7 +67,7 @@ struct mdk_rdev_s
 #define Faulty          1               /* device is known to have a fault */
 #define In_sync         2               /* device is in_sync with rest of array */
 #define WriteMostly     4               /* Avoid reading if at all possible */
-#define BarriersNotsupp 5               /* BIO_RW_BARRIER is not supported */
+#define BarriersNotsupp 5               /* REQ_HARDBARRIER is not supported */
 #define AllReserved     6               /* If whole device is reserved for
                                          * one array */
 #define AutoDetected    7               /* added by auto-detect */
@@ -254,7 +254,7 @@ struct mddev_s
                                                          * fails.  Only supported
                                                          */
         struct bio                      *biolist;       /* bios that need to be retried
-                                                         * because BIO_RW_BARRIER is not supported
+                                                         * because REQ_HARDBARRIER is not supported
                                                          */
 
         atomic_t                        recovery_active; /* blocks scheduled, but not written */
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 410fb60699ac..0307d217e7a4 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -91,7 +91,7 @@ static void multipath_end_request(struct bio *bio, int error)
 
         if (uptodate)
                 multipath_end_bh_io(mp_bh, 0);
-        else if (!bio_rw_flagged(bio, BIO_RW_AHEAD)) {
+        else if (!(bio->bi_rw & REQ_RAHEAD)) {
                 /*
                  * oops, IO error:
                  */
@@ -142,7 +142,7 @@ static int multipath_make_request(mddev_t *mddev, struct bio * bio)
         struct multipath_bh * mp_bh;
         struct multipath_info *multipath;
 
-        if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
+        if (unlikely(bio->bi_rw & REQ_HARDBARRIER)) {
                 md_barrier_request(mddev, bio);
                 return 0;
         }
@@ -163,7 +163,7 @@ static int multipath_make_request(mddev_t *mddev, struct bio * bio)
         mp_bh->bio = *bio;
         mp_bh->bio.bi_sector += multipath->rdev->data_offset;
         mp_bh->bio.bi_bdev = multipath->rdev->bdev;
-        mp_bh->bio.bi_rw |= (1 << BIO_RW_FAILFAST_TRANSPORT);
+        mp_bh->bio.bi_rw |= REQ_FAILFAST_TRANSPORT;
         mp_bh->bio.bi_end_io = multipath_end_request;
         mp_bh->bio.bi_private = mp_bh;
         generic_make_request(&mp_bh->bio);
@@ -398,7 +398,7 @@ static void multipathd (mddev_t *mddev)
                         *bio = *(mp_bh->master_bio);
                         bio->bi_sector += conf->multipaths[mp_bh->path].rdev->data_offset;
                         bio->bi_bdev = conf->multipaths[mp_bh->path].rdev->bdev;
-                        bio->bi_rw |= (1 << BIO_RW_FAILFAST_TRANSPORT);
+                        bio->bi_rw |= REQ_FAILFAST_TRANSPORT;
                         bio->bi_end_io = multipath_end_request;
                         bio->bi_private = mp_bh;
                         generic_make_request(bio);
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 563abed5a2cb..6f7af46d623c 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -483,7 +483,7 @@ static int raid0_make_request(mddev_t *mddev, struct bio *bio)
         struct strip_zone *zone;
         mdk_rdev_t *tmp_dev;
 
-        if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
+        if (unlikely(bio->bi_rw & REQ_HARDBARRIER)) {
                 md_barrier_request(mddev, bio);
                 return 0;
         }
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index a948da8012de..73cc74ffc26b 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -787,7 +787,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
         struct bio_list bl;
         struct page **behind_pages = NULL;
         const int rw = bio_data_dir(bio);
-        const bool do_sync = bio_rw_flagged(bio, BIO_RW_SYNCIO);
+        const bool do_sync = (bio->bi_rw & REQ_SYNC);
         bool do_barriers;
         mdk_rdev_t *blocked_rdev;
 
@@ -822,7 +822,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
                 finish_wait(&conf->wait_barrier, &w);
         }
         if (unlikely(!mddev->barriers_work &&
-                     bio_rw_flagged(bio, BIO_RW_BARRIER))) {
+                     (bio->bi_rw & REQ_HARDBARRIER))) {
                 if (rw == WRITE)
                         md_write_end(mddev);
                 bio_endio(bio, -EOPNOTSUPP);
@@ -877,7 +877,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
                 read_bio->bi_sector = r1_bio->sector + mirror->rdev->data_offset;
                 read_bio->bi_bdev = mirror->rdev->bdev;
                 read_bio->bi_end_io = raid1_end_read_request;
-                read_bio->bi_rw = READ | (do_sync << BIO_RW_SYNCIO);
+                read_bio->bi_rw = READ | do_sync;
                 read_bio->bi_private = r1_bio;
 
                 generic_make_request(read_bio);
@@ -959,7 +959,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
         atomic_set(&r1_bio->remaining, 0);
         atomic_set(&r1_bio->behind_remaining, 0);
 
-        do_barriers = bio_rw_flagged(bio, BIO_RW_BARRIER);
+        do_barriers = bio->bi_rw & REQ_HARDBARRIER;
         if (do_barriers)
                 set_bit(R1BIO_Barrier, &r1_bio->state);
 
@@ -975,8 +975,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
                 mbio->bi_sector = r1_bio->sector + conf->mirrors[i].rdev->data_offset;
                 mbio->bi_bdev = conf->mirrors[i].rdev->bdev;
                 mbio->bi_end_io = raid1_end_write_request;
-                mbio->bi_rw = WRITE | (do_barriers << BIO_RW_BARRIER) |
-                        (do_sync << BIO_RW_SYNCIO);
+                mbio->bi_rw = WRITE | do_barriers | do_sync;
                 mbio->bi_private = r1_bio;
 
                 if (behind_pages) {
@@ -1633,7 +1632,7 @@ static void raid1d(mddev_t *mddev)
                         sync_request_write(mddev, r1_bio);
                         unplug = 1;
                 } else if (test_bit(R1BIO_BarrierRetry, &r1_bio->state)) {
-                        /* some requests in the r1bio were BIO_RW_BARRIER
+                        /* some requests in the r1bio were REQ_HARDBARRIER
                          * requests which failed with -EOPNOTSUPP.  Hohumm..
                          * Better resubmit without the barrier.
                          * We know which devices to resubmit for, because
@@ -1641,7 +1640,7 @@ static void raid1d(mddev_t *mddev)
                          * We already have a nr_pending reference on these rdevs.
                          */
                         int i;
-                        const bool do_sync = bio_rw_flagged(r1_bio->master_bio, BIO_RW_SYNCIO);
+                        const bool do_sync = (r1_bio->master_bio->bi_rw & REQ_SYNC);
                         clear_bit(R1BIO_BarrierRetry, &r1_bio->state);
                         clear_bit(R1BIO_Barrier, &r1_bio->state);
                         for (i=0; i < conf->raid_disks; i++)
@@ -1662,8 +1661,7 @@ static void raid1d(mddev_t *mddev)
                                                 conf->mirrors[i].rdev->data_offset;
                                         bio->bi_bdev = conf->mirrors[i].rdev->bdev;
                                         bio->bi_end_io = raid1_end_write_request;
-                                        bio->bi_rw = WRITE |
-                                                (do_sync << BIO_RW_SYNCIO);
+                                        bio->bi_rw = WRITE | do_sync;
                                         bio->bi_private = r1_bio;
                                         r1_bio->bios[i] = bio;
                                         generic_make_request(bio);
@@ -1698,7 +1696,7 @@ static void raid1d(mddev_t *mddev)
                                        (unsigned long long)r1_bio->sector);
                                 raid_end_bio_io(r1_bio);
                         } else {
-                                const bool do_sync = bio_rw_flagged(r1_bio->master_bio, BIO_RW_SYNCIO);
+                                const bool do_sync = r1_bio->master_bio->bi_rw & REQ_SYNC;
                                 r1_bio->bios[r1_bio->read_disk] =
                                         mddev->ro ? IO_BLOCKED : NULL;
                                 r1_bio->read_disk = disk;
@@ -1715,7 +1713,7 @@ static void raid1d(mddev_t *mddev)
                                 bio->bi_sector = r1_bio->sector + rdev->data_offset;
                                 bio->bi_bdev = rdev->bdev;
                                 bio->bi_end_io = raid1_end_read_request;
-                                bio->bi_rw = READ | (do_sync << BIO_RW_SYNCIO);
+                                bio->bi_rw = READ | do_sync;
                                 bio->bi_private = r1_bio;
                                 unplug = 1;
                                 generic_make_request(bio);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 42e64e4e5e25..62ecb6650fd0 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -799,12 +799,12 @@ static int make_request(mddev_t *mddev, struct bio * bio)
         int i;
         int chunk_sects = conf->chunk_mask + 1;
         const int rw = bio_data_dir(bio);
-        const bool do_sync = bio_rw_flagged(bio, BIO_RW_SYNCIO);
+        const bool do_sync = (bio->bi_rw & REQ_SYNC);
         struct bio_list bl;
         unsigned long flags;
         mdk_rdev_t *blocked_rdev;
 
-        if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
+        if (unlikely(bio->bi_rw & REQ_HARDBARRIER)) {
                 md_barrier_request(mddev, bio);
                 return 0;
         }
@@ -879,7 +879,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
                         mirror->rdev->data_offset;
                 read_bio->bi_bdev = mirror->rdev->bdev;
                 read_bio->bi_end_io = raid10_end_read_request;
-                read_bio->bi_rw = READ | (do_sync << BIO_RW_SYNCIO);
+                read_bio->bi_rw = READ | do_sync;
                 read_bio->bi_private = r10_bio;
 
                 generic_make_request(read_bio);
@@ -947,7 +947,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
                         conf->mirrors[d].rdev->data_offset;
                 mbio->bi_bdev = conf->mirrors[d].rdev->bdev;
                 mbio->bi_end_io = raid10_end_write_request;
-                mbio->bi_rw = WRITE | (do_sync << BIO_RW_SYNCIO);
+                mbio->bi_rw = WRITE | do_sync;
                 mbio->bi_private = r10_bio;
 
                 atomic_inc(&r10_bio->remaining);
@@ -1716,7 +1716,7 @@ static void raid10d(mddev_t *mddev)
                                 raid_end_bio_io(r10_bio);
                                 bio_put(bio);
                         } else {
-                                const bool do_sync = bio_rw_flagged(r10_bio->master_bio, BIO_RW_SYNCIO);
+                                const bool do_sync = (r10_bio->master_bio->bi_rw & REQ_SYNC);
                                 bio_put(bio);
                                 rdev = conf->mirrors[mirror].rdev;
                                 if (printk_ratelimit())
@@ -1730,7 +1730,7 @@ static void raid10d(mddev_t *mddev)
                                 bio->bi_sector = r10_bio->devs[r10_bio->read_slot].addr
                                         + rdev->data_offset;
                                 bio->bi_bdev = rdev->bdev;
-                                bio->bi_rw = READ | (do_sync << BIO_RW_SYNCIO);
+                                bio->bi_rw = READ | do_sync;
                                 bio->bi_private = r10_bio;
                                 bio->bi_end_io = raid10_end_read_request;
                                 unplug = 1;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 96c690279fc6..20ac2f14376a 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3958,7 +3958,7 @@ static int make_request(mddev_t *mddev, struct bio * bi)
         const int rw = bio_data_dir(bi);
         int remaining;
 
-        if (unlikely(bio_rw_flagged(bi, BIO_RW_BARRIER))) {
+        if (unlikely(bi->bi_rw & REQ_HARDBARRIER)) {
                 /* Drain all pending writes.  We only really need
                  * to ensure they have been submitted, but this is
                  * easier.
diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index ee4b6914667f..fda4de3440c4 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -716,7 +716,7 @@ static int _osd_req_list_objects(struct osd_request *or,
                 return PTR_ERR(bio);
         }
 
-        bio->bi_rw &= ~(1 << BIO_RW);
+        bio->bi_rw &= ~REQ_WRITE;
         or->in.bio = bio;
         or->in.total_bytes = bio->bi_size;
         return 0;
@@ -814,7 +814,7 @@ void osd_req_write(struct osd_request *or,
 {
         _osd_req_encode_common(or, OSD_ACT_WRITE, obj, offset, len);
         WARN_ON(or->out.bio || or->out.total_bytes);
-        WARN_ON(0 ==  bio_rw_flagged(bio, BIO_RW));
+        WARN_ON(0 == (bio->bi_rw & REQ_WRITE));
         or->out.bio = bio;
         or->out.total_bytes = len;
 }
@@ -829,7 +829,7 @@ int osd_req_write_kern(struct osd_request *or,
         if (IS_ERR(bio))
                 return PTR_ERR(bio);
 
-        bio->bi_rw |= (1 << BIO_RW); /* FIXME: bio_set_dir() */
+        bio->bi_rw |= REQ_WRITE; /* FIXME: bio_set_dir() */
         osd_req_write(or, obj, offset, bio, len);
         return 0;
 }
@@ -865,7 +865,7 @@ void osd_req_read(struct osd_request *or,
 {
         _osd_req_encode_common(or, OSD_ACT_READ, obj, offset, len);
         WARN_ON(or->in.bio || or->in.total_bytes);
-        WARN_ON(1 == bio_rw_flagged(bio, BIO_RW));
+        WARN_ON(1 == (bio->bi_rw & REQ_WRITE));
         or->in.bio = bio;
         or->in.total_bytes = len;
 }