From: NeilBrown Date: Tue, 9 Jun 2009 06:32:22 +0000 (+1000) Subject: md/raid5: fix bug in reshape code when chunk_size decreases. X-Git-Tag: accepted/tizen/common/20141203.182822~15860^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0e6e0271a210817e202c8a4bfffbde3e3c0616d1;p=platform%2Fkernel%2Flinux-arm64.git 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 --- diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 59f2ec0..bb37fb1 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -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)