dm raid: add comments and fix typos (2527b56e) · Commits · e / devices / android_kernel_teracube_emerald

drivers/md/dm-raid.c

+13 −7

Original line number	Diff line number	Diff line
		@@ -1618,7 +1618,6 @@ static int rs_check_takeover(struct raid_set *rs)
		/* raid1 -> raid10 */
		if (mddev->new_level == 10)
		return 0;

		break;

		case 4:
		@@ -2424,8 +2423,8 @@ static int rs_adjust_data_offsets(struct raid_set *rs)
		* data is at offset rs->data_offset != 0 and
		* free space is at begin of each component LV
		*
		* - after reshape: data is at offset 0 if i was at offset != 0
		* of at offset != 0 if it was at offset 0
		* - after reshape: data is at offset 0 if it was at offset != 0
		* or at offset != 0 if it was at offset 0
		* on each component LV
		*
		*/
		@@ -2731,6 +2730,12 @@ static int raid_ctr(struct dm_target ti, unsigned argc, char *argv)

		rs->md.sync_super = super_sync;

		/*
		* Calculate ctr requested array and device sizes to allow
		* for superblock analysis needing device sizes defined.
		*
		* Any existing superblock will overwrite the array and device sizes
		*/
		r = rs_set_dev_and_array_sectors(rs, false);
		if (r)
		return r;
		@@ -2781,8 +2786,9 @@ static int raid_ctr(struct dm_target ti, unsigned argc, char *argv)
		}

		/*
		* If a takeover is needed, just set the level to
		* the new requested one and allow the raid set to run.
		* If a takeover is needed, userspace sets any additional
		* devices to rebuild, so just set the level to the new
		* requested one and allow the raid set to run
		*/
		r = rs_check_takeover(rs);
		if (r)
		@@ -2845,7 +2851,7 @@ static int raid_ctr(struct dm_target ti, unsigned argc, char *argv)
		}

		if (rs->md.raid_disks < rs->raid_disks)
		set_bit(MD_ARRAY_FIRST_USE, &rs->md.flags);
		set_bit(MD_ARRAY_FIRST_USE, &mddev->flags);

		rs_set_cur(rs);
		rs_setup_recovery(rs, MaxSector);
		@@ -2935,7 +2941,7 @@ static int raid_map(struct dm_target ti, struct bio bio)
		* mddev->array_sectors will differ during the process
		* (ti->len > mddev->array_sectors), so we have to requeue
		* bios with addresses > mddev->array_sectors here or
		* or there will occur accesses past EOD of the component
		* there will occur accesses past EOD of the component
		* data images thus erroring the raid set.
		*/
		if (unlikely(bio_end_sector(bio) > mddev->array_sectors))