]> git.kernelconcepts.de Git - karo-tx-linux.git/blobdiff - drivers/md/dm-raid.c
drm/panel: simple: add support for EDT ETM0700G0EDH6 7" WVGA panel
[karo-tx-linux.git] / drivers / md / dm-raid.c
index 2e10c2f13a34986c9d8d445e1b00ea94261b2628..5bfe285ea9d1c815ae8014064a29e4a08566d374 100644 (file)
@@ -208,6 +208,7 @@ struct raid_dev {
 #define RT_FLAG_RS_BITMAP_LOADED       2
 #define RT_FLAG_UPDATE_SBS             3
 #define RT_FLAG_RESHAPE_RS             4
+#define RT_FLAG_RS_SUSPENDED           5
 
 /* Array elements of 64 bit needed for rebuild/failed disk bits */
 #define DISKS_ARRAY_ELEMS ((MAX_RAID_DEVICES + (sizeof(uint64_t) * 8 - 1)) / sizeof(uint64_t) / 8)
@@ -564,9 +565,10 @@ static const char *raid10_md_layout_to_format(int layout)
        if (__raid10_near_copies(layout) > 1)
                return "near";
 
-       WARN_ON(__raid10_far_copies(layout) < 2);
+       if (__raid10_far_copies(layout) > 1)
+               return "far";
 
-       return "far";
+       return "unknown";
 }
 
 /* Return md raid10 algorithm for @name */
@@ -2540,11 +2542,6 @@ static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs)
        if (!freshest)
                return 0;
 
-       if (validate_raid_redundancy(rs)) {
-               rs->ti->error = "Insufficient redundancy to activate array";
-               return -EINVAL;
-       }
-
        /*
         * Validation of the freshest device provides the source of
         * validation for the remaining devices.
@@ -2553,6 +2550,11 @@ static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs)
        if (super_validate(rs, freshest))
                return -EINVAL;
 
+       if (validate_raid_redundancy(rs)) {
+               rs->ti->error = "Insufficient redundancy to activate array";
+               return -EINVAL;
+       }
+
        rdev_for_each(rdev, mddev)
                if (!test_bit(Journal, &rdev->flags) &&
                    rdev != freshest &&
@@ -3168,6 +3170,7 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
        }
 
        mddev_suspend(&rs->md);
+       set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags);
 
        /* Try to adjust the raid4/5/6 stripe cache size to the stripe size */
        if (rs_is_raid456(rs)) {
@@ -3625,7 +3628,7 @@ static void raid_postsuspend(struct dm_target *ti)
 {
        struct raid_set *rs = ti->private;
 
-       if (!rs->md.suspended)
+       if (!test_and_set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags))
                mddev_suspend(&rs->md);
 
        rs->md.ro = 1;
@@ -3759,7 +3762,7 @@ static int rs_start_reshape(struct raid_set *rs)
                return r;
 
        /* Need to be resumed to be able to start reshape, recovery is frozen until raid_resume() though */
-       if (mddev->suspended)
+       if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags))
                mddev_resume(mddev);
 
        /*
@@ -3786,8 +3789,8 @@ static int rs_start_reshape(struct raid_set *rs)
        }
 
        /* Suspend because a resume will happen in raid_resume() */
-       if (!mddev->suspended)
-               mddev_suspend(mddev);
+       set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags);
+       mddev_suspend(mddev);
 
        /*
         * Now reshape got set up, update superblocks to
@@ -3883,13 +3886,13 @@ static void raid_resume(struct dm_target *ti)
        if (!(rs->ctr_flags & RESUME_STAY_FROZEN_FLAGS))
                clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
 
-       if (mddev->suspended)
+       if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags))
                mddev_resume(mddev);
 }
 
 static struct target_type raid_target = {
        .name = "raid",
-       .version = {1, 11, 1},
+       .version = {1, 12, 1},
        .module = THIS_MODULE,
        .ctr = raid_ctr,
        .dtr = raid_dtr,