forked from Minki/linux
[PATCH] md: set the unplug_fn and issue_flush_fn for md devices *after* committed to creation
We we set the too early, they may still be in place and possibly get called even though the array didn't get set up properly. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -462,10 +462,6 @@ static int multipath_run (mddev_t *mddev)
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}
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memset(conf->multipaths, 0, sizeof(struct multipath_info)*mddev->raid_disks);
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mddev->queue->unplug_fn = multipath_unplug;
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mddev->queue->issue_flush_fn = multipath_issue_flush;
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conf->working_disks = 0;
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ITERATE_RDEV(mddev,rdev,tmp) {
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disk_idx = rdev->raid_disk;
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@ -528,6 +524,10 @@ static int multipath_run (mddev_t *mddev)
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* Ok, everything is just fine now
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*/
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mddev->array_size = mddev->size;
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mddev->queue->unplug_fn = multipath_unplug;
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mddev->queue->issue_flush_fn = multipath_issue_flush;
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return 0;
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out_free_conf:
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@ -1197,10 +1197,6 @@ static int run(mddev_t *mddev)
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if (!conf->r1bio_pool)
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goto out_no_mem;
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mddev->queue->unplug_fn = raid1_unplug;
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mddev->queue->issue_flush_fn = raid1_issue_flush;
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ITERATE_RDEV(mddev, rdev, tmp) {
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disk_idx = rdev->raid_disk;
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if (disk_idx >= mddev->raid_disks
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@ -1282,6 +1278,9 @@ static int run(mddev_t *mddev)
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*/
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mddev->array_size = mddev->size;
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mddev->queue->unplug_fn = raid1_unplug;
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mddev->queue->issue_flush_fn = raid1_issue_flush;
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return 0;
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out_no_mem:
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@ -1639,9 +1639,6 @@ static int run(mddev_t *mddev)
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mdname(mddev));
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goto out_free_conf;
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}
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mddev->queue->unplug_fn = raid10_unplug;
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mddev->queue->issue_flush_fn = raid10_issue_flush;
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ITERATE_RDEV(mddev, rdev, tmp) {
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disk_idx = rdev->raid_disk;
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@ -1713,6 +1710,9 @@ static int run(mddev_t *mddev)
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mddev->array_size = size/2;
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mddev->resync_max_sectors = size;
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mddev->queue->unplug_fn = raid10_unplug;
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mddev->queue->issue_flush_fn = raid10_issue_flush;
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/* Calculate max read-ahead size.
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* We need to readahead at least twice a whole stripe....
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* maybe...
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@ -1620,9 +1620,6 @@ static int run (mddev_t *mddev)
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atomic_set(&conf->active_stripes, 0);
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atomic_set(&conf->preread_active_stripes, 0);
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mddev->queue->unplug_fn = raid5_unplug_device;
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mddev->queue->issue_flush_fn = raid5_issue_flush;
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PRINTK("raid5: run(%s) called.\n", mdname(mddev));
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ITERATE_RDEV(mddev,rdev,tmp) {
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@ -1728,6 +1725,10 @@ memory = conf->max_nr_stripes * (sizeof(struct stripe_head) +
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}
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/* Ok, everything is just fine now */
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mddev->queue->unplug_fn = raid5_unplug_device;
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mddev->queue->issue_flush_fn = raid5_issue_flush;
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mddev->array_size = mddev->size * (mddev->raid_disks - 1);
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return 0;
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abort:
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@ -1779,9 +1779,6 @@ static int run (mddev_t *mddev)
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atomic_set(&conf->active_stripes, 0);
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atomic_set(&conf->preread_active_stripes, 0);
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mddev->queue->unplug_fn = raid6_unplug_device;
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mddev->queue->issue_flush_fn = raid6_issue_flush;
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PRINTK("raid6: run(%s) called.\n", mdname(mddev));
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ITERATE_RDEV(mddev,rdev,tmp) {
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@ -1895,6 +1892,9 @@ static int run (mddev_t *mddev)
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/* Ok, everything is just fine now */
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mddev->array_size = mddev->size * (mddev->raid_disks - 2);
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mddev->queue->unplug_fn = raid6_unplug_device;
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mddev->queue->issue_flush_fn = raid6_issue_flush;
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return 0;
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abort:
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if (conf) {
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