From: Mike Christie <mchri...@redhat.com>

Separate the op from the rq_flag_bits and have md
set/get the bio using bio_set_op_attrs/bio_op.

Signed-off-by: Mike Christie <mchri...@redhat.com>
Reviewed-by: Christoph Hellwig <h...@lst.de>
Reviewed-by: Hannes Reinecke <h...@suse.com>
---
 drivers/md/bitmap.c      |  2 +-
 drivers/md/dm-raid.c     |  5 +++--
 drivers/md/linear.c      |  2 +-
 drivers/md/md.c          | 12 ++++++------
 drivers/md/md.h          |  3 ++-
 drivers/md/raid0.c       |  2 +-
 drivers/md/raid1.c       | 32 +++++++++++++++-----------------
 drivers/md/raid10.c      | 48 +++++++++++++++++++++++-------------------------
 drivers/md/raid5-cache.c | 26 ++++++++++++++++----------
 drivers/md/raid5.c       | 40 ++++++++++++++++++++--------------------
 10 files changed, 88 insertions(+), 84 deletions(-)

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index bc6dced..6fff794 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -162,7 +162,7 @@ static int read_sb_page(struct mddev *mddev, loff_t offset,
 
                if (sync_page_io(rdev, target,
                                 roundup(size, 
bdev_logical_block_size(rdev->bdev)),
-                                page, READ, true)) {
+                                page, REQ_OP_READ, 0, true)) {
                        page->index = index;
                        return 0;
                }
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 5253274..8cbac62 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -792,7 +792,7 @@ static int read_disk_sb(struct md_rdev *rdev, int size)
        if (rdev->sb_loaded)
                return 0;
 
-       if (!sync_page_io(rdev, 0, size, rdev->sb_page, READ, 1)) {
+       if (!sync_page_io(rdev, 0, size, rdev->sb_page, REQ_OP_READ, 0, 1)) {
                DMERR("Failed to read superblock of device at position %d",
                      rdev->raid_disk);
                md_error(rdev->mddev, rdev);
@@ -1651,7 +1651,8 @@ static void attempt_restore_of_faulty_devices(struct 
raid_set *rs)
        for (i = 0; i < rs->md.raid_disks; i++) {
                r = &rs->dev[i].rdev;
                if (test_bit(Faulty, &r->flags) && r->sb_page &&
-                   sync_page_io(r, 0, r->sb_size, r->sb_page, READ, 1)) {
+                   sync_page_io(r, 0, r->sb_size, r->sb_page, REQ_OP_READ, 0,
+                                1)) {
                        DMINFO("Faulty %s device #%d has readable super block."
                               "  Attempting to revive it.",
                               rs->raid_type->name, i);
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index b7fe7e9..1ad3f48 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -252,7 +252,7 @@ static void linear_make_request(struct mddev *mddev, struct 
bio *bio)
                split->bi_iter.bi_sector = split->bi_iter.bi_sector -
                        start_sector + data_offset;
 
-               if (unlikely((split->bi_rw & REQ_DISCARD) &&
+               if (unlikely((bio_op(split) == REQ_OP_DISCARD) &&
                         !blk_queue_discard(bdev_get_queue(split->bi_bdev)))) {
                        /* Just ignore it */
                        bio_endio(split);
diff --git a/drivers/md/md.c b/drivers/md/md.c
index fb3950b..bd4844f 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -394,7 +394,7 @@ static void submit_flushes(struct work_struct *ws)
                        bi->bi_end_io = md_end_flush;
                        bi->bi_private = rdev;
                        bi->bi_bdev = rdev->bdev;
-                       bi->bi_rw = WRITE_FLUSH;
+                       bio_set_op_attrs(bi, REQ_OP_WRITE, WRITE_FLUSH);
                        atomic_inc(&mddev->flush_pending);
                        submit_bio(bi);
                        rcu_read_lock();
@@ -743,7 +743,7 @@ void md_super_write(struct mddev *mddev, struct md_rdev 
*rdev,
        bio_add_page(bio, page, size, 0);
        bio->bi_private = rdev;
        bio->bi_end_io = super_written;
-       bio->bi_rw = WRITE_FLUSH_FUA;
+       bio_set_op_attrs(bio, REQ_OP_WRITE, WRITE_FLUSH_FUA);
 
        atomic_inc(&mddev->pending_writes);
        submit_bio(bio);
@@ -756,14 +756,14 @@ void md_super_wait(struct mddev *mddev)
 }
 
 int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
-                struct page *page, int rw, bool metadata_op)
+                struct page *page, int op, int op_flags, bool metadata_op)
 {
        struct bio *bio = bio_alloc_mddev(GFP_NOIO, 1, rdev->mddev);
        int ret;
 
        bio->bi_bdev = (metadata_op && rdev->meta_bdev) ?
                rdev->meta_bdev : rdev->bdev;
-       bio->bi_rw = rw;
+       bio_set_op_attrs(bio, op, op_flags);
        if (metadata_op)
                bio->bi_iter.bi_sector = sector + rdev->sb_start;
        else if (rdev->mddev->reshape_position != MaxSector &&
@@ -789,7 +789,7 @@ static int read_disk_sb(struct md_rdev *rdev, int size)
        if (rdev->sb_loaded)
                return 0;
 
-       if (!sync_page_io(rdev, 0, size, rdev->sb_page, READ, true))
+       if (!sync_page_io(rdev, 0, size, rdev->sb_page, REQ_OP_READ, 0, true))
                goto fail;
        rdev->sb_loaded = 1;
        return 0;
@@ -1475,7 +1475,7 @@ static int super_1_load(struct md_rdev *rdev, struct 
md_rdev *refdev, int minor_
                        return -EINVAL;
                bb_sector = (long long)offset;
                if (!sync_page_io(rdev, bb_sector, sectors << 9,
-                                 rdev->bb_page, READ, true))
+                                 rdev->bb_page, REQ_OP_READ, 0, true))
                        return -EIO;
                bbp = (u64 *)page_address(rdev->bb_page);
                rdev->badblocks.shift = sb->bblog_shift;
diff --git a/drivers/md/md.h b/drivers/md/md.h
index b5c4be7..2e0918f 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -618,7 +618,8 @@ extern void md_super_write(struct mddev *mddev, struct 
md_rdev *rdev,
                           sector_t sector, int size, struct page *page);
 extern void md_super_wait(struct mddev *mddev);
 extern int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
-                       struct page *page, int rw, bool metadata_op);
+                       struct page *page, int op, int op_flags,
+                       bool metadata_op);
 extern void md_do_sync(struct md_thread *thread);
 extern void md_new_event(struct mddev *mddev);
 extern int md_allow_write(struct mddev *mddev);
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 34783a3..051a10c 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -488,7 +488,7 @@ static void raid0_make_request(struct mddev *mddev, struct 
bio *bio)
                split->bi_iter.bi_sector = sector + zone->dev_start +
                        tmp_dev->data_offset;
 
-               if (unlikely((split->bi_rw & REQ_DISCARD) &&
+               if (unlikely((bio_op(split) == REQ_OP_DISCARD) &&
                         !blk_queue_discard(bdev_get_queue(split->bi_bdev)))) {
                        /* Just ignore it */
                        bio_endio(split);
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index bc95d4d..a342723 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -759,7 +759,7 @@ static void flush_pending_writes(struct r1conf *conf)
                while (bio) { /* submit pending writes */
                        struct bio *next = bio->bi_next;
                        bio->bi_next = NULL;
-                       if (unlikely((bio->bi_rw & REQ_DISCARD) &&
+                       if (unlikely((bio_op(bio) == REQ_OP_DISCARD) &&
                            !blk_queue_discard(bdev_get_queue(bio->bi_bdev))))
                                /* Just ignore it */
                                bio_endio(bio);
@@ -1033,7 +1033,7 @@ static void raid1_unplug(struct blk_plug_cb *cb, bool 
from_schedule)
        while (bio) { /* submit pending writes */
                struct bio *next = bio->bi_next;
                bio->bi_next = NULL;
-               if (unlikely((bio->bi_rw & REQ_DISCARD) &&
+               if (unlikely((bio_op(bio) == REQ_OP_DISCARD) &&
                    !blk_queue_discard(bdev_get_queue(bio->bi_bdev))))
                        /* Just ignore it */
                        bio_endio(bio);
@@ -1053,12 +1053,11 @@ static void raid1_make_request(struct mddev *mddev, 
struct bio * bio)
        int i, disks;
        struct bitmap *bitmap;
        unsigned long flags;
+       const int op = bio_op(bio);
        const int rw = bio_data_dir(bio);
        const unsigned long do_sync = (bio->bi_rw & REQ_SYNC);
        const unsigned long do_flush_fua = (bio->bi_rw & (REQ_FLUSH | REQ_FUA));
-       const unsigned long do_discard = (bio->bi_rw
-                                         & (REQ_DISCARD | REQ_SECURE));
-       const unsigned long do_same = (bio->bi_rw & REQ_WRITE_SAME);
+       const unsigned long do_sec = (bio->bi_rw & REQ_SECURE);
        struct md_rdev *blocked_rdev;
        struct blk_plug_cb *cb;
        struct raid1_plug_cb *plug = NULL;
@@ -1166,7 +1165,7 @@ read_again:
                        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_set_op_attrs(read_bio, op, do_sync);
                read_bio->bi_private = r1_bio;
 
                if (max_sectors < r1_bio->sectors) {
@@ -1376,8 +1375,7 @@ read_again:
                                   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_flush_fua | do_sync | do_discard | do_same;
+               bio_set_op_attrs(mbio, op, do_flush_fua | do_sync | do_sec);
                mbio->bi_private = r1_bio;
 
                atomic_inc(&r1_bio->remaining);
@@ -1771,7 +1769,7 @@ static void end_sync_write(struct bio *bio)
 static int r1_sync_page_io(struct md_rdev *rdev, sector_t sector,
                            int sectors, struct page *page, int rw)
 {
-       if (sync_page_io(rdev, sector, sectors << 9, page, rw, false))
+       if (sync_page_io(rdev, sector, sectors << 9, page, rw, 0, false))
                /* success */
                return 1;
        if (rw == WRITE) {
@@ -1825,7 +1823,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
                                rdev = conf->mirrors[d].rdev;
                                if (sync_page_io(rdev, sect, s<<9,
                                                 bio->bi_io_vec[idx].bv_page,
-                                                READ, false)) {
+                                                REQ_OP_READ, 0, false)) {
                                        success = 1;
                                        break;
                                }
@@ -2030,7 +2028,7 @@ static void sync_request_write(struct mddev *mddev, 
struct r1bio *r1_bio)
                      !test_bit(MD_RECOVERY_SYNC, &mddev->recovery))))
                        continue;
 
-               wbio->bi_rw = WRITE;
+               bio_set_op_attrs(wbio, REQ_OP_WRITE, 0);
                wbio->bi_end_io = end_sync_write;
                atomic_inc(&r1_bio->remaining);
                md_sync_acct(conf->mirrors[i].rdev->bdev, bio_sectors(wbio));
@@ -2090,7 +2088,7 @@ static void fix_read_error(struct r1conf *conf, int 
read_disk,
                            is_badblock(rdev, sect, s,
                                        &first_bad, &bad_sectors) == 0 &&
                            sync_page_io(rdev, sect, s<<9,
-                                        conf->tmppage, READ, false))
+                                        conf->tmppage, REQ_OP_READ, 0, false))
                                success = 1;
                        else {
                                d++;
@@ -2201,7 +2199,7 @@ static int narrow_write_error(struct r1bio *r1_bio, int i)
                        wbio = bio_clone_mddev(r1_bio->master_bio, GFP_NOIO, 
mddev);
                }
 
-               wbio->bi_rw = WRITE;
+               bio_set_op_attrs(wbio, REQ_OP_WRITE, 0);
                wbio->bi_iter.bi_sector = r1_bio->sector;
                wbio->bi_iter.bi_size = r1_bio->sectors << 9;
 
@@ -2344,7 +2342,7 @@ read_more:
                bio->bi_iter.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_set_op_attrs(bio, REQ_OP_READ, do_sync);
                bio->bi_private = r1_bio;
                if (max_sectors < r1_bio->sectors) {
                        /* Drat - have to split this up more */
@@ -2572,7 +2570,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, 
sector_t sector_nr,
                        if (i < conf->raid_disks)
                                still_degraded = 1;
                } else if (!test_bit(In_sync, &rdev->flags)) {
-                       bio->bi_rw = WRITE;
+                       bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
                        bio->bi_end_io = end_sync_write;
                        write_targets ++;
                } else {
@@ -2599,7 +2597,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, 
sector_t sector_nr,
                                        if (disk < 0)
                                                disk = i;
                                }
-                               bio->bi_rw = READ;
+                               bio_set_op_attrs(bio, REQ_OP_READ, 0);
                                bio->bi_end_io = end_sync_read;
                                read_targets++;
                        } else if (!test_bit(WriteErrorSeen, &rdev->flags) &&
@@ -2611,7 +2609,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, 
sector_t sector_nr,
                                 * if we are doing resync or repair. Otherwise, 
leave
                                 * this device alone for this sync request.
                                 */
-                               bio->bi_rw = WRITE;
+                               bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
                                bio->bi_end_io = end_sync_write;
                                write_targets++;
                        }
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 0be6497..615045a 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -865,7 +865,7 @@ static void flush_pending_writes(struct r10conf *conf)
                while (bio) { /* submit pending writes */
                        struct bio *next = bio->bi_next;
                        bio->bi_next = NULL;
-                       if (unlikely((bio->bi_rw & REQ_DISCARD) &&
+                       if (unlikely((bio_op(bio) ==  REQ_OP_DISCARD) &&
                            !blk_queue_discard(bdev_get_queue(bio->bi_bdev))))
                                /* Just ignore it */
                                bio_endio(bio);
@@ -1041,7 +1041,7 @@ static void raid10_unplug(struct blk_plug_cb *cb, bool 
from_schedule)
        while (bio) { /* submit pending writes */
                struct bio *next = bio->bi_next;
                bio->bi_next = NULL;
-               if (unlikely((bio->bi_rw & REQ_DISCARD) &&
+               if (unlikely((bio_op(bio) ==  REQ_OP_DISCARD) &&
                    !blk_queue_discard(bdev_get_queue(bio->bi_bdev))))
                        /* Just ignore it */
                        bio_endio(bio);
@@ -1058,12 +1058,11 @@ static void __make_request(struct mddev *mddev, struct 
bio *bio)
        struct r10bio *r10_bio;
        struct bio *read_bio;
        int i;
+       const int op = bio_op(bio);
        const int rw = bio_data_dir(bio);
        const unsigned long do_sync = (bio->bi_rw & REQ_SYNC);
        const unsigned long do_fua = (bio->bi_rw & REQ_FUA);
-       const unsigned long do_discard = (bio->bi_rw
-                                         & (REQ_DISCARD | REQ_SECURE));
-       const unsigned long do_same = (bio->bi_rw & REQ_WRITE_SAME);
+       const unsigned long do_sec = (bio->bi_rw & REQ_SECURE);
        unsigned long flags;
        struct md_rdev *blocked_rdev;
        struct blk_plug_cb *cb;
@@ -1156,7 +1155,7 @@ read_again:
                        choose_data_offset(r10_bio, rdev);
                read_bio->bi_bdev = rdev->bdev;
                read_bio->bi_end_io = raid10_end_read_request;
-               read_bio->bi_rw = READ | do_sync;
+               bio_set_op_attrs(read_bio, op, do_sync);
                read_bio->bi_private = r10_bio;
 
                if (max_sectors < r10_bio->sectors) {
@@ -1363,8 +1362,7 @@ retry_write:
                                                              rdev));
                        mbio->bi_bdev = rdev->bdev;
                        mbio->bi_end_io = raid10_end_write_request;
-                       mbio->bi_rw =
-                               WRITE | do_sync | do_fua | do_discard | do_same;
+                       bio_set_op_attrs(mbio, op, do_sync | do_fua | do_sec);
                        mbio->bi_private = r10_bio;
 
                        atomic_inc(&r10_bio->remaining);
@@ -1406,8 +1404,7 @@ retry_write:
                                                   r10_bio, rdev));
                        mbio->bi_bdev = rdev->bdev;
                        mbio->bi_end_io = raid10_end_write_request;
-                       mbio->bi_rw =
-                               WRITE | do_sync | do_fua | do_discard | do_same;
+                       bio_set_op_attrs(mbio, op, do_sync | do_fua | do_sec);
                        mbio->bi_private = r10_bio;
 
                        atomic_inc(&r10_bio->remaining);
@@ -1992,10 +1989,10 @@ static void sync_request_write(struct mddev *mddev, 
struct r10bio *r10_bio)
 
                tbio->bi_vcnt = vcnt;
                tbio->bi_iter.bi_size = fbio->bi_iter.bi_size;
-               tbio->bi_rw = WRITE;
                tbio->bi_private = r10_bio;
                tbio->bi_iter.bi_sector = r10_bio->devs[i].addr;
                tbio->bi_end_io = end_sync_write;
+               bio_set_op_attrs(tbio, REQ_OP_WRITE, 0);
 
                bio_copy_data(tbio, fbio);
 
@@ -2078,7 +2075,7 @@ static void fix_recovery_read_error(struct r10bio 
*r10_bio)
                                  addr,
                                  s << 9,
                                  bio->bi_io_vec[idx].bv_page,
-                                 READ, false);
+                                 REQ_OP_READ, 0, false);
                if (ok) {
                        rdev = conf->mirrors[dw].rdev;
                        addr = r10_bio->devs[1].addr + sect;
@@ -2086,7 +2083,7 @@ static void fix_recovery_read_error(struct r10bio 
*r10_bio)
                                          addr,
                                          s << 9,
                                          bio->bi_io_vec[idx].bv_page,
-                                         WRITE, false);
+                                         REQ_OP_WRITE, 0, false);
                        if (!ok) {
                                set_bit(WriteErrorSeen, &rdev->flags);
                                if (!test_and_set_bit(WantReplacement,
@@ -2213,7 +2210,7 @@ static int r10_sync_page_io(struct md_rdev *rdev, 
sector_t sector,
        if (is_badblock(rdev, sector, sectors, &first_bad, &bad_sectors)
            && (rw == READ || test_bit(WriteErrorSeen, &rdev->flags)))
                return -1;
-       if (sync_page_io(rdev, sector, sectors << 9, page, rw, false))
+       if (sync_page_io(rdev, sector, sectors << 9, page, rw, 0, false))
                /* success */
                return 1;
        if (rw == WRITE) {
@@ -2299,7 +2296,8 @@ static void fix_read_error(struct r10conf *conf, struct 
mddev *mddev, struct r10
                                                       r10_bio->devs[sl].addr +
                                                       sect,
                                                       s<<9,
-                                                      conf->tmppage, READ, 
false);
+                                                      conf->tmppage,
+                                                      REQ_OP_READ, 0, false);
                                rdev_dec_pending(rdev, mddev);
                                rcu_read_lock();
                                if (success)
@@ -2474,7 +2472,7 @@ static int narrow_write_error(struct r10bio *r10_bio, int 
i)
                                   choose_data_offset(r10_bio, rdev) +
                                   (sector - r10_bio->sector));
                wbio->bi_bdev = rdev->bdev;
-               wbio->bi_rw = WRITE;
+               bio_set_op_attrs(wbio, REQ_OP_WRITE, 0);
 
                if (submit_bio_wait(wbio) < 0)
                        /* Failure! */
@@ -2550,7 +2548,7 @@ read_more:
        bio->bi_iter.bi_sector = r10_bio->devs[slot].addr
                + choose_data_offset(r10_bio, rdev);
        bio->bi_bdev = rdev->bdev;
-       bio->bi_rw = READ | do_sync;
+       bio_set_op_attrs(bio, REQ_OP_READ, do_sync);
        bio->bi_private = r10_bio;
        bio->bi_end_io = raid10_end_read_request;
        if (max_sectors < r10_bio->sectors) {
@@ -3040,7 +3038,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, 
sector_t sector_nr,
                                biolist = bio;
                                bio->bi_private = r10_bio;
                                bio->bi_end_io = end_sync_read;
-                               bio->bi_rw = READ;
+                               bio_set_op_attrs(bio, REQ_OP_READ, 0);
                                from_addr = r10_bio->devs[j].addr;
                                bio->bi_iter.bi_sector = from_addr +
                                        rdev->data_offset;
@@ -3066,7 +3064,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, 
sector_t sector_nr,
                                        biolist = bio;
                                        bio->bi_private = r10_bio;
                                        bio->bi_end_io = end_sync_write;
-                                       bio->bi_rw = WRITE;
+                                       bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
                                        bio->bi_iter.bi_sector = to_addr
                                                + rdev->data_offset;
                                        bio->bi_bdev = rdev->bdev;
@@ -3095,7 +3093,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, 
sector_t sector_nr,
                                biolist = bio;
                                bio->bi_private = r10_bio;
                                bio->bi_end_io = end_sync_write;
-                               bio->bi_rw = WRITE;
+                               bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
                                bio->bi_iter.bi_sector = to_addr +
                                        rdev->data_offset;
                                bio->bi_bdev = rdev->bdev;
@@ -3215,7 +3213,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, 
sector_t sector_nr,
                        biolist = bio;
                        bio->bi_private = r10_bio;
                        bio->bi_end_io = end_sync_read;
-                       bio->bi_rw = READ;
+                       bio_set_op_attrs(bio, REQ_OP_READ, 0);
                        bio->bi_iter.bi_sector = sector +
                                conf->mirrors[d].rdev->data_offset;
                        bio->bi_bdev = conf->mirrors[d].rdev->bdev;
@@ -3237,7 +3235,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, 
sector_t sector_nr,
                        biolist = bio;
                        bio->bi_private = r10_bio;
                        bio->bi_end_io = end_sync_write;
-                       bio->bi_rw = WRITE;
+                       bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
                        bio->bi_iter.bi_sector = sector +
                                conf->mirrors[d].replacement->data_offset;
                        bio->bi_bdev = conf->mirrors[d].replacement->bdev;
@@ -4322,7 +4320,7 @@ read_more:
                               + rdev->data_offset);
        read_bio->bi_private = r10_bio;
        read_bio->bi_end_io = end_sync_read;
-       read_bio->bi_rw = READ;
+       bio_set_op_attrs(read_bio, REQ_OP_READ, 0);
        read_bio->bi_flags &= (~0UL << BIO_RESET_BITS);
        read_bio->bi_error = 0;
        read_bio->bi_vcnt = 0;
@@ -4356,7 +4354,7 @@ read_more:
                        rdev2->new_data_offset;
                b->bi_private = r10_bio;
                b->bi_end_io = end_reshape_write;
-               b->bi_rw = WRITE;
+               bio_set_op_attrs(b, REQ_OP_WRITE, 0);
                b->bi_next = blist;
                blist = b;
        }
@@ -4524,7 +4522,7 @@ static int handle_reshape_read_error(struct mddev *mddev,
                                               addr,
                                               s << 9,
                                               bvec[idx].bv_page,
-                                              READ, false);
+                                              REQ_OP_READ, 0, false);
                        if (success)
                                break;
                failed:
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
index 0b01453..9265138 100644
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -261,7 +261,7 @@ static struct bio *r5l_bio_alloc(struct r5l_log *log)
 {
        struct bio *bio = bio_alloc_bioset(GFP_NOIO, BIO_MAX_PAGES, log->bs);
 
-       bio->bi_rw = WRITE;
+       bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
        bio->bi_bdev = log->rdev->bdev;
        bio->bi_iter.bi_sector = log->rdev->data_offset + log->log_start;
 
@@ -686,7 +686,7 @@ void r5l_flush_stripe_to_raid(struct r5l_log *log)
        bio_reset(&log->flush_bio);
        log->flush_bio.bi_bdev = log->rdev->bdev;
        log->flush_bio.bi_end_io = r5l_log_flush_endio;
-       log->flush_bio.bi_rw = WRITE_FLUSH;
+       bio_set_op_attrs(&log->flush_bio, REQ_OP_WRITE, WRITE_FLUSH);
        submit_bio(&log->flush_bio);
 }
 
@@ -882,7 +882,8 @@ static int r5l_read_meta_block(struct r5l_log *log,
        struct r5l_meta_block *mb;
        u32 crc, stored_crc;
 
-       if (!sync_page_io(log->rdev, ctx->pos, PAGE_SIZE, page, READ, false))
+       if (!sync_page_io(log->rdev, ctx->pos, PAGE_SIZE, page, REQ_OP_READ, 0,
+                         false))
                return -EIO;
 
        mb = page_address(page);
@@ -927,7 +928,8 @@ static int r5l_recovery_flush_one_stripe(struct r5l_log 
*log,
                                             &disk_index, sh);
 
                        sync_page_io(log->rdev, *log_offset, PAGE_SIZE,
-                                    sh->dev[disk_index].page, READ, false);
+                                    sh->dev[disk_index].page, REQ_OP_READ, 0,
+                                    false);
                        sh->dev[disk_index].log_checksum =
                                le32_to_cpu(payload->checksum[0]);
                        set_bit(R5_Wantwrite, &sh->dev[disk_index].flags);
@@ -935,7 +937,8 @@ static int r5l_recovery_flush_one_stripe(struct r5l_log 
*log,
                } else {
                        disk_index = sh->pd_idx;
                        sync_page_io(log->rdev, *log_offset, PAGE_SIZE,
-                                    sh->dev[disk_index].page, READ, false);
+                                    sh->dev[disk_index].page, REQ_OP_READ, 0,
+                                    false);
                        sh->dev[disk_index].log_checksum =
                                le32_to_cpu(payload->checksum[0]);
                        set_bit(R5_Wantwrite, &sh->dev[disk_index].flags);
@@ -945,7 +948,7 @@ static int r5l_recovery_flush_one_stripe(struct r5l_log 
*log,
                                sync_page_io(log->rdev,
                                             r5l_ring_add(log, *log_offset, 
BLOCK_SECTORS),
                                             PAGE_SIZE, 
sh->dev[disk_index].page,
-                                            READ, false);
+                                            REQ_OP_READ, 0, false);
                                sh->dev[disk_index].log_checksum =
                                        le32_to_cpu(payload->checksum[1]);
                                set_bit(R5_Wantwrite,
@@ -987,11 +990,13 @@ static int r5l_recovery_flush_one_stripe(struct r5l_log 
*log,
                rdev = rcu_dereference(conf->disks[disk_index].rdev);
                if (rdev)
                        sync_page_io(rdev, stripe_sect, PAGE_SIZE,
-                                    sh->dev[disk_index].page, WRITE, false);
+                                    sh->dev[disk_index].page, REQ_OP_WRITE, 0,
+                                    false);
                rrdev = rcu_dereference(conf->disks[disk_index].replacement);
                if (rrdev)
                        sync_page_io(rrdev, stripe_sect, PAGE_SIZE,
-                                    sh->dev[disk_index].page, WRITE, false);
+                                    sh->dev[disk_index].page, REQ_OP_WRITE, 0,
+                                    false);
        }
        raid5_release_stripe(sh);
        return 0;
@@ -1063,7 +1068,8 @@ static int r5l_log_write_empty_meta_block(struct r5l_log 
*log, sector_t pos,
        crc = crc32c_le(log->uuid_checksum, mb, PAGE_SIZE);
        mb->checksum = cpu_to_le32(crc);
 
-       if (!sync_page_io(log->rdev, pos, PAGE_SIZE, page, WRITE_FUA, false)) {
+       if (!sync_page_io(log->rdev, pos, PAGE_SIZE, page, REQ_OP_WRITE,
+                         WRITE_FUA, false)) {
                __free_page(page);
                return -EIO;
        }
@@ -1138,7 +1144,7 @@ static int r5l_load_log(struct r5l_log *log)
        if (!page)
                return -ENOMEM;
 
-       if (!sync_page_io(rdev, cp, PAGE_SIZE, page, READ, false)) {
+       if (!sync_page_io(rdev, cp, PAGE_SIZE, page, REQ_OP_READ, 0, false)) {
                ret = -EIO;
                goto ioerr;
        }
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 8959e6d..e35c163 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -806,7 +806,8 @@ static void stripe_add_to_batch_list(struct r5conf *conf, 
struct stripe_head *sh
        dd_idx = 0;
        while (dd_idx == sh->pd_idx || dd_idx == sh->qd_idx)
                dd_idx++;
-       if (head->dev[dd_idx].towrite->bi_rw != sh->dev[dd_idx].towrite->bi_rw)
+       if (head->dev[dd_idx].towrite->bi_rw != sh->dev[dd_idx].towrite->bi_rw 
||
+           bio_op(head->dev[dd_idx].towrite) != 
bio_op(sh->dev[dd_idx].towrite))
                goto unlock_out;
 
        if (head->batch_head) {
@@ -891,29 +892,28 @@ static void ops_run_io(struct stripe_head *sh, struct 
stripe_head_state *s)
        if (r5l_write_stripe(conf->log, sh) == 0)
                return;
        for (i = disks; i--; ) {
-               int rw;
+               int op, op_flags = 0;
                int replace_only = 0;
                struct bio *bi, *rbi;
                struct md_rdev *rdev, *rrdev = NULL;
 
                sh = head_sh;
                if (test_and_clear_bit(R5_Wantwrite, &sh->dev[i].flags)) {
+                       op = REQ_OP_WRITE;
                        if (test_and_clear_bit(R5_WantFUA, &sh->dev[i].flags))
-                               rw = WRITE_FUA;
-                       else
-                               rw = WRITE;
+                               op_flags = WRITE_FUA;
                        if (test_bit(R5_Discard, &sh->dev[i].flags))
-                               rw |= REQ_DISCARD;
+                               op = REQ_OP_DISCARD;
                } else if (test_and_clear_bit(R5_Wantread, &sh->dev[i].flags))
-                       rw = READ;
+                       op = REQ_OP_READ;
                else if (test_and_clear_bit(R5_WantReplace,
                                            &sh->dev[i].flags)) {
-                       rw = WRITE;
+                       op = REQ_OP_WRITE;
                        replace_only = 1;
                } else
                        continue;
                if (test_and_clear_bit(R5_SyncIO, &sh->dev[i].flags))
-                       rw |= REQ_SYNC;
+                       op_flags |= REQ_SYNC;
 
 again:
                bi = &sh->dev[i].req;
@@ -927,7 +927,7 @@ again:
                        rdev = rrdev;
                        rrdev = NULL;
                }
-               if (rw & WRITE) {
+               if (op_is_write(op)) {
                        if (replace_only)
                                rdev = NULL;
                        if (rdev == rrdev)
@@ -953,7 +953,7 @@ again:
                 * need to check for writes.  We never accept write errors
                 * on the replacement, so we don't to check rrdev.
                 */
-               while ((rw & WRITE) && rdev &&
+               while (op_is_write(op) && rdev &&
                       test_bit(WriteErrorSeen, &rdev->flags)) {
                        sector_t first_bad;
                        int bad_sectors;
@@ -995,8 +995,8 @@ again:
 
                        bio_reset(bi);
                        bi->bi_bdev = rdev->bdev;
-                       bi->bi_rw = rw;
-                       bi->bi_end_io = (rw & WRITE)
+                       bio_set_op_attrs(bi, op, op_flags);
+                       bi->bi_end_io = op_is_write(op)
                                ? raid5_end_write_request
                                : raid5_end_read_request;
                        bi->bi_private = sh;
@@ -1027,7 +1027,7 @@ again:
                         * If this is discard request, set bi_vcnt 0. We don't
                         * want to confuse SCSI because SCSI will replace 
payload
                         */
-                       if (rw & REQ_DISCARD)
+                       if (op == REQ_OP_DISCARD)
                                bi->bi_vcnt = 0;
                        if (rrdev)
                                set_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags);
@@ -1047,8 +1047,8 @@ again:
 
                        bio_reset(rbi);
                        rbi->bi_bdev = rrdev->bdev;
-                       rbi->bi_rw = rw;
-                       BUG_ON(!(rw & WRITE));
+                       bio_set_op_attrs(rbi, op, op_flags);
+                       BUG_ON(!op_is_write(op));
                        rbi->bi_end_io = raid5_end_write_request;
                        rbi->bi_private = sh;
 
@@ -1076,7 +1076,7 @@ again:
                         * If this is discard request, set bi_vcnt 0. We don't
                         * want to confuse SCSI because SCSI will replace 
payload
                         */
-                       if (rw & REQ_DISCARD)
+                       if (op == REQ_OP_DISCARD)
                                rbi->bi_vcnt = 0;
                        if (conf->mddev->gendisk)
                                
trace_block_bio_remap(bdev_get_queue(rbi->bi_bdev),
@@ -1085,7 +1085,7 @@ again:
                        generic_make_request(rbi);
                }
                if (!rdev && !rrdev) {
-                       if (rw & WRITE)
+                       if (op_is_write(op))
                                set_bit(STRIPE_DEGRADED, &sh->state);
                        pr_debug("skip op %ld on disc %d for sector %llu\n",
                                bi->bi_rw, i, (unsigned long long)sh->sector);
@@ -1623,7 +1623,7 @@ again:
                                        set_bit(R5_WantFUA, &dev->flags);
                                if (wbi->bi_rw & REQ_SYNC)
                                        set_bit(R5_SyncIO, &dev->flags);
-                               if (wbi->bi_rw & REQ_DISCARD)
+                               if (bio_op(wbi) == REQ_OP_DISCARD)
                                        set_bit(R5_Discard, &dev->flags);
                                else {
                                        tx = async_copy_data(1, wbi, &dev->page,
@@ -5176,7 +5176,7 @@ static void raid5_make_request(struct mddev *mddev, 
struct bio * bi)
                        return;
        }
 
-       if (unlikely(bi->bi_rw & REQ_DISCARD)) {
+       if (unlikely(bio_op(bi) == REQ_OP_DISCARD)) {
                make_discard_request(mddev, bi);
                return;
        }
-- 
2.7.2

--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to