Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx...

[firefly-linux-kernel-4.4.55.git] / drivers / md / raid5.c

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 1898eda60722594e4f52e7995f8e1b22553de5dd..94829804ab7fd2f68c839e0f481444bfaeb3be7a 100644 (file)
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2924,7 +2924,8 @@ static bool handle_stripe5(struct stripe_head *sh)
        rcu_read_lock();
        for (i=disks; i--; ) {
                mdk_rdev_t *rdev;
-               struct r5dev *dev = &sh->dev[i];
+
+               dev = &sh->dev[i];
                clear_bit(R5_Insync, &dev->flags);
 
                pr_debug("check %d: state 0x%lx toread %p read %p write %p "
@@ -3548,6 +3549,9 @@ static int raid5_congested(void *data, int bits)
        /* No difference between reads and writes.  Just check
         * how busy the stripe_cache is
         */
+
+       if (mddev_congested(mddev, bits))
+               return 1;
        if (conf->inactive_blocked)
                return 1;
        if (conf->quiesce)
@@ -3823,7 +3827,7 @@ static int make_request(struct request_queue *q, struct bio * bi)
        const int rw = bio_data_dir(bi);
        int cpu, remaining;
 
-       if (unlikely(bio_barrier(bi))) {
+       if (unlikely(bio_rw_flagged(bi, BIO_RW_BARRIER))) {
                bio_endio(bi, -EOPNOTSUPP);
                return 0;
        }
@@ -4097,7 +4101,7 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped
        INIT_LIST_HEAD(&stripes);
        for (i = 0; i < reshape_sectors; i += STRIPE_SECTORS) {
                int j;
-               int skipped = 0;
+               int skipped_disk = 0;
                sh = get_active_stripe(conf, stripe_addr+i, 0, 0, 1);
                set_bit(STRIPE_EXPANDING, &sh->state);
                atomic_inc(&conf->reshape_stripes);
@@ -4113,14 +4117,14 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped
                                continue;
                        s = compute_blocknr(sh, j, 0);
                        if (s < raid5_size(mddev, 0, 0)) {
-                               skipped = 1;
+                               skipped_disk = 1;
                                continue;
                        }
                        memset(page_address(sh->dev[j].page), 0, STRIPE_SIZE);
                        set_bit(R5_Expanded, &sh->dev[j].flags);
                        set_bit(R5_UPTODATE, &sh->dev[j].flags);
                }
-               if (!skipped) {
+               if (!skipped_disk) {
                        set_bit(STRIPE_EXPAND_READY, &sh->state);
                        set_bit(STRIPE_HANDLE, &sh->state);
                }
@@ -4798,7 +4802,7 @@ static raid5_conf_t *setup_conf(mddev_t *mddev)
                printk(KERN_INFO "raid5: allocated %dkB for %s\n",
                        memory, mdname(mddev));
 
-       conf->thread = md_register_thread(raid5d, mddev, "%s_raid5");
+       conf->thread = md_register_thread(raid5d, mddev, NULL);
        if (!conf->thread) {
                printk(KERN_ERR
                       "raid5: couldn't allocate thread for %s\n",
@@ -4964,7 +4968,7 @@ static int run(mddev_t *mddev)
                set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
                set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
                mddev->sync_thread = md_register_thread(md_do_sync, mddev,
-                                                       "%s_reshape");
+                                                       "reshape");
        }
 
        /* read-ahead size must cover two whole stripes, which is
@@ -5382,7 +5386,7 @@ static int raid5_start_reshape(mddev_t *mddev)
        set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
        set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
        mddev->sync_thread = md_register_thread(md_do_sync, mddev,
-                                               "%s_reshape");
+                                               "reshape");
        if (!mddev->sync_thread) {
                mddev->recovery = 0;
                spin_lock_irq(&conf->device_lock);