Signed-off-by: Kent Overstreet <koverstr...@google.com>
CC: Jens Axboe <ax...@kernel.dk>
CC: NeilBrown <ne...@suse.de>
---
 drivers/md/raid1.c | 24 ++++++------------------
 1 file changed, 6 insertions(+), 18 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 28f506a..4614b9e 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1851,7 +1851,7 @@ static int process_checks(struct r1bio *r1_bio)
                struct bio *sbio = r1_bio->bios[i];
                int size;
 
-               if (r1_bio->bios[i]->bi_end_io != end_sync_read)
+               if (sbio->bi_end_io != end_sync_read)
                        continue;
 
                if (test_bit(BIO_UPTODATE, &sbio->bi_flags)) {
@@ -1876,16 +1876,15 @@ static int process_checks(struct r1bio *r1_bio)
                        continue;
                }
                /* fixup the bio for reuse */
+               bio_reset(sbio);
                sbio->bi_vcnt = vcnt;
                sbio->bi_size = r1_bio->sectors << 9;
-               sbio->bi_idx = 0;
-               sbio->bi_phys_segments = 0;
-               sbio->bi_flags &= ~(BIO_POOL_MASK - 1);
-               sbio->bi_flags |= 1 << BIO_UPTODATE;
-               sbio->bi_next = NULL;
                sbio->bi_sector = r1_bio->sector +
                        conf->mirrors[i].rdev->data_offset;
                sbio->bi_bdev = conf->mirrors[i].rdev->bdev;
+               sbio->bi_end_io = end_sync_read;
+               sbio->bi_private = r1_bio;
+
                size = sbio->bi_size;
                for (j = 0; j < vcnt ; j++) {
                        struct bio_vec *bi;
@@ -2426,18 +2425,7 @@ static sector_t sync_request(struct mddev *mddev, 
sector_t sector_nr, int *skipp
        for (i = 0; i < conf->raid_disks * 2; i++) {
                struct md_rdev *rdev;
                bio = r1_bio->bios[i];
-
-               /* take from bio_init */
-               bio->bi_next = NULL;
-               bio->bi_flags &= ~(BIO_POOL_MASK-1);
-               bio->bi_flags |= 1 << BIO_UPTODATE;
-               bio->bi_rw = READ;
-               bio->bi_vcnt = 0;
-               bio->bi_idx = 0;
-               bio->bi_phys_segments = 0;
-               bio->bi_size = 0;
-               bio->bi_end_io = NULL;
-               bio->bi_private = NULL;
+               bio_reset(bio);
 
                rdev = rcu_dereference(conf->mirrors[i].rdev);
                if (rdev == NULL ||
-- 
1.7.12

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