33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
From e1742195ff3dba97929f81af6b7633481a23397a Mon Sep 17 00:00:00 2001
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From: Adam Kwolek <adam.kwolek@intel.com>
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Date: Tue, 7 Feb 2012 15:03:51 +0100
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Subject: [PATCH 07/12] imsm: FIX: Chunk size migration problem
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When chunk size migration occurs (e.g. 128k->4k) first checkpoint cannot
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be set in md due to too small step. Correct migration record initialization
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to allow whole copy area usage and increase migration checkpoint step.
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Signed-off-by: Adam Kwolek <adam.kwolek@intel.com>
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Signed-off-by: NeilBrown <neilb@suse.de>
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---
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super-intel.c | 3 ++-
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1 files changed, 2 insertions(+), 1 deletions(-)
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diff --git a/super-intel.c b/super-intel.c
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index 19a2c84..f5762d8 100644
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--- a/super-intel.c
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+++ b/super-intel.c
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@@ -8913,7 +8913,8 @@ void init_migr_record_imsm(struct supertype *st, struct imsm_dev *dev,
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migr_rec->dest_depth_per_unit = GEN_MIGR_AREA_SIZE /
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max(map_dest->blocks_per_strip, map_src->blocks_per_strip);
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- migr_rec->dest_depth_per_unit *= map_dest->blocks_per_strip;
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+ migr_rec->dest_depth_per_unit *=
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+ max(map_dest->blocks_per_strip, map_src->blocks_per_strip);
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new_data_disks = imsm_num_data_members(dev, MAP_0);
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migr_rec->blocks_per_unit =
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__cpu_to_le32(migr_rec->dest_depth_per_unit * new_data_disks);
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--
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1.7.4.4
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