Commit 0e6e0271 authored Jun 09, 2009 by NeilBrown

md/raid5: fix bug in reshape code when chunk_size decreases.



Now that we support changing the chunksize, we calculate
"reshape_sectors" to be the max of number of sectors in old
and new chunk size.
However there is one please where we still use 'chunksize'
rather than 'reshape_sectors'.
This causes a reshape that reduces the size of chunks to freeze.

Signed-off-by: NeilBrown <neilb@suse.de>

parent a8c906ca

drivers/md/raid5.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -3916,7 +3916,7 @@ static sector_t reshape_request(mddev_t mddev, sector_t sector_nr, int skipped
		raid5_compute_sector(conf, stripe_addr*(new_data_disks),
		1, &dd_idx, NULL);
		last_sector =
		raid5_compute_sector(conf, ((stripe_addr+conf->chunk_size/512)
		raid5_compute_sector(conf, ((stripe_addr+reshape_sectors)
		*(new_data_disks) - 1),
		1, &dd_idx, NULL);
		if (last_sector >= mddev->dev_sectors)