diff options
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 177d2a7d7ce..fa608a1a5c2 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3241,12 +3241,13 @@ static void md_do_sync(mddev_t *mddev) mddev_t *mddev2; unsigned int currspeed = 0, window; - sector_t max_sectors,j; + sector_t max_sectors,j, io_sectors; unsigned long mark[SYNC_MARKS]; sector_t mark_cnt[SYNC_MARKS]; int last_mark,m; struct list_head *tmp; sector_t last_check; + int skipped = 0; /* just incase thread restarts... */ if (test_bit(MD_RECOVERY_DONE, &mddev->recovery)) @@ -3312,7 +3313,7 @@ static void md_do_sync(mddev_t *mddev) if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) /* resync follows the size requested by the personality, - * which default to physical size, but can be virtual size + * which defaults to physical size, but can be virtual size */ max_sectors = mddev->resync_max_sectors; else @@ -3331,9 +3332,10 @@ static void md_do_sync(mddev_t *mddev) j = mddev->recovery_cp; else j = 0; + io_sectors = 0; for (m = 0; m < SYNC_MARKS; m++) { mark[m] = jiffies; - mark_cnt[m] = j; + mark_cnt[m] = io_sectors; } last_mark = 0; mddev->resync_mark = mark[last_mark]; @@ -3358,21 +3360,29 @@ static void md_do_sync(mddev_t *mddev) } while (j < max_sectors) { - int sectors; + sector_t sectors; - sectors = mddev->pers->sync_request(mddev, j, currspeed < sysctl_speed_limit_min); - if (sectors < 0) { + skipped = 0; + sectors = mddev->pers->sync_request(mddev, j, &skipped, + currspeed < sysctl_speed_limit_min); + if (sectors == 0) { set_bit(MD_RECOVERY_ERR, &mddev->recovery); goto out; } - atomic_add(sectors, &mddev->recovery_active); + + if (!skipped) { /* actual IO requested */ + io_sectors += sectors; + atomic_add(sectors, &mddev->recovery_active); + } + j += sectors; if (j>1) mddev->curr_resync = j; - if (last_check + window > j || j == max_sectors) + + if (last_check + window > io_sectors || j == max_sectors) continue; - last_check = j; + last_check = io_sectors; if (test_bit(MD_RECOVERY_INTR, &mddev->recovery) || test_bit(MD_RECOVERY_ERR, &mddev->recovery)) @@ -3386,7 +3396,7 @@ static void md_do_sync(mddev_t *mddev) mddev->resync_mark = mark[next]; mddev->resync_mark_cnt = mark_cnt[next]; mark[next] = jiffies; - mark_cnt[next] = j - atomic_read(&mddev->recovery_active); + mark_cnt[next] = io_sectors - atomic_read(&mddev->recovery_active); last_mark = next; } @@ -3413,7 +3423,8 @@ static void md_do_sync(mddev_t *mddev) mddev->queue->unplug_fn(mddev->queue); cond_resched(); - currspeed = ((unsigned long)(j-mddev->resync_mark_cnt))/2/((jiffies-mddev->resync_mark)/HZ +1) +1; + currspeed = ((unsigned long)(io_sectors-mddev->resync_mark_cnt))/2 + /((jiffies-mddev->resync_mark)/HZ +1) +1; if (currspeed > sysctl_speed_limit_min) { if ((currspeed > sysctl_speed_limit_max) || @@ -3433,7 +3444,7 @@ static void md_do_sync(mddev_t *mddev) wait_event(mddev->recovery_wait, !atomic_read(&mddev->recovery_active)); /* tell personality that we are finished */ - mddev->pers->sync_request(mddev, max_sectors, 1); + mddev->pers->sync_request(mddev, max_sectors, &skipped, 1); if (!test_bit(MD_RECOVERY_ERR, &mddev->recovery) && mddev->curr_resync > 2 && |