x86, mce: implement panic synchronization

[safe/jmp/linux-2.6] / drivers / md / md.c

diff --git a/drivers/md/md.c b/drivers/md/md.c
index aa79d55..641b211 100644 (file)
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3306,7 +3306,9 @@ static ssize_t
 action_show(mddev_t *mddev, char *page)
 {
        char *type = "idle";
-       if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) ||
+       if (test_bit(MD_RECOVERY_FROZEN, &mddev->recovery))
+               type = "frozen";
+       else if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) ||
            (!mddev->ro && test_bit(MD_RECOVERY_NEEDED, &mddev->recovery))) {
                if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))
                        type = "reshape";
@@ -3329,7 +3331,12 @@ action_store(mddev_t *mddev, const char *page, size_t len)
        if (!mddev->pers || !mddev->pers->sync_request)
                return -EINVAL;
 
-       if (cmd_match(page, "idle")) {
+       if (cmd_match(page, "frozen"))
+               set_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
+       else
+               clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
+
+       if (cmd_match(page, "idle") || cmd_match(page, "frozen")) {
                if (mddev->sync_thread) {
                        set_bit(MD_RECOVERY_INTR, &mddev->recovery);
                        md_unregister_thread(mddev->sync_thread);
@@ -3683,7 +3690,7 @@ array_size_store(mddev_t *mddev, const char *buf, size_t len)
                if (strict_blocks_to_sectors(buf, &sectors) < 0)
                        return -EINVAL;
                if (mddev->pers && mddev->pers->size(mddev, 0, 0) < sectors)
-                       return -EINVAL;
+                       return -E2BIG;
 
                mddev->external_size = 1;
        }
@@ -5560,7 +5567,7 @@ static struct block_device_operations md_fops =
        .owner          = THIS_MODULE,
        .open           = md_open,
        .release        = md_release,
-       .locked_ioctl   = md_ioctl,
+       .ioctl          = md_ioctl,
        .getgeo         = md_getgeo,
        .media_changed  = md_media_changed,
        .revalidate_disk= md_revalidate,
@@ -6355,12 +6362,13 @@ void md_do_sync(mddev_t *mddev)
 
                skipped = 0;
 
-               if ((mddev->curr_resync > mddev->curr_resync_completed &&
-                    (mddev->curr_resync - mddev->curr_resync_completed)
-                   > (max_sectors >> 4)) ||
-                   (j - mddev->curr_resync_completed)*2
-                   >= mddev->resync_max - mddev->curr_resync_completed
-                       ) {
+               if (!test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
+                   ((mddev->curr_resync > mddev->curr_resync_completed &&
+                     (mddev->curr_resync - mddev->curr_resync_completed)
+                     > (max_sectors >> 4)) ||
+                    (j - mddev->curr_resync_completed)*2
+                    >= mddev->resync_max - mddev->curr_resync_completed
+                           )) {
                        /* time to update curr_resync_completed */
                        blk_unplug(mddev->queue);
                        wait_event(mddev->recovery_wait,