Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[deliverable/linux.git] / drivers / md / raid10.c

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index ae12ceafe10c557fa79d4e6c367ceae44d144327..d0a2152e064f75430afa8117db184392c1a4ef3b 100644 (file)
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -796,12 +796,12 @@ static int make_request(struct request_queue *q, struct bio * bio)
        int i;
        int chunk_sects = conf->chunk_mask + 1;
        const int rw = bio_data_dir(bio);
-       const int do_sync = bio_sync(bio);
+       const bool do_sync = bio_rw_flagged(bio, BIO_RW_SYNCIO);
        struct bio_list bl;
        unsigned long flags;
        mdk_rdev_t *blocked_rdev;
 
-       if (unlikely(bio_barrier(bio))) {
+       if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
                bio_endio(bio, -EOPNOTSUPP);
                return 0;
        }
@@ -1151,8 +1151,8 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
        for ( ; mirror <= last ; mirror++)
                if ( !(p=conf->mirrors+mirror)->rdev) {
 
-                       blk_queue_stack_limits(mddev->queue,
-                                              rdev->bdev->bd_disk->queue);
+                       disk_stack_limits(mddev->gendisk, rdev->bdev,
+                                         rdev->data_offset << 9);
                        /* as we don't honour merge_bvec_fn, we must never risk
                         * violating it, so limit ->max_sector to one PAGE, as
                         * a one page request is never in violation.
@@ -1170,6 +1170,7 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
                        break;
                }
 
+       md_integrity_add_rdev(rdev, mddev);
        print_conf(conf);
        return err;
 }
@@ -1203,7 +1204,9 @@ static int raid10_remove_disk(mddev_t *mddev, int number)
                        /* lost the race, try later */
                        err = -EBUSY;
                        p->rdev = rdev;
+                       goto abort;
                }
+               md_integrity_register(mddev);
        }
 abort:
 
@@ -1607,7 +1610,7 @@ static void raid10d(mddev_t *mddev)
                                raid_end_bio_io(r10_bio);
                                bio_put(bio);
                        } else {
-                               const int do_sync = bio_sync(r10_bio->master_bio);
+                               const bool do_sync = bio_rw_flagged(r10_bio->master_bio, BIO_RW_SYNCIO);
                                bio_put(bio);
                                rdev = conf->mirrors[mirror].rdev;
                                if (printk_ratelimit())
@@ -2044,7 +2047,7 @@ raid10_size(mddev_t *mddev, sector_t sectors, int raid_disks)
 static int run(mddev_t *mddev)
 {
        conf_t *conf;
-       int i, disk_idx;
+       int i, disk_idx, chunk_size;
        mirror_info_t *disk;
        mdk_rdev_t *rdev;
        int nc, fc, fo;
@@ -2130,6 +2133,14 @@ static int run(mddev_t *mddev)
        spin_lock_init(&conf->device_lock);
        mddev->queue->queue_lock = &conf->device_lock;
 
+       chunk_size = mddev->chunk_sectors << 9;
+       blk_queue_io_min(mddev->queue, chunk_size);
+       if (conf->raid_disks % conf->near_copies)
+               blk_queue_io_opt(mddev->queue, chunk_size * conf->raid_disks);
+       else
+               blk_queue_io_opt(mddev->queue, chunk_size *
+                                (conf->raid_disks / conf->near_copies));
+
        list_for_each_entry(rdev, &mddev->disks, same_set) {
                disk_idx = rdev->raid_disk;
                if (disk_idx >= mddev->raid_disks
@@ -2138,9 +2149,8 @@ static int run(mddev_t *mddev)
                disk = conf->mirrors + disk_idx;
 
                disk->rdev = rdev;
-
-               blk_queue_stack_limits(mddev->queue,
-                                      rdev->bdev->bd_disk->queue);
+               disk_stack_limits(mddev->gendisk, rdev->bdev,
+                                 rdev->data_offset << 9);
                /* as we don't honour merge_bvec_fn, we must never risk
                 * violating it, so limit ->max_sector to one PAGE, as
                 * a one page request is never in violation.
@@ -2218,6 +2228,7 @@ static int run(mddev_t *mddev)
 
        if (conf->near_copies < mddev->raid_disks)
                blk_queue_merge_bvec(mddev->queue, raid10_mergeable_bvec);
+       md_integrity_register(mddev);
        return 0;
 
 out_free_conf: