44 lines
1.3 KiB
Diff
44 lines
1.3 KiB
Diff
From 6a75c8ca79b4cf89a5d1ac24b484b75e8a7e9fb4 Mon Sep 17 00:00:00 2001
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From: Adam Kwolek <adam.kwolek@intel.com>
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Date: Thu, 9 Feb 2012 12:36:42 +1100
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Subject: [PATCH 09/12] imsm: FIX: use md position to reshape restart
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When reshape is broken it can occur that metadata is not saved properly.
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This can cause that reshape process is farther in md than metadata states.
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On restart save checkpoint to store current position /probably farther/
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that can be read from md.
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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 | 12 ++++++++++++
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1 files changed, 12 insertions(+), 0 deletions(-)
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diff --git a/super-intel.c b/super-intel.c
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index f5762d8..5f451f3 100644
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--- a/super-intel.c
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+++ b/super-intel.c
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@@ -10067,6 +10067,18 @@ static int imsm_manage_reshape(
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"are present in copy area.\n");
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goto abort;
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}
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+ /* Save checkpoint to update migration record for current
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+ * reshape position (in md). It can be farther than current
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+ * reshape position in metadata.
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+ */
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+ if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) {
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+ /* ignore error == 2, this can mean end of reshape here
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+ */
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+ dprintf("imsm: Cannot write checkpoint to "
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+ "migration record (UNIT_SRC_NORMAL, "
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+ "initial save)\n");
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+ goto abort;
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+ }
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}
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/* size for data */
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--
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1.7.4.4
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