38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
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From 4d75389962585d5a543cadb2742cb4dfe22dc807 Mon Sep 17 00:00:00 2001
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From: Nick Wang <nwang@suse.com>
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Date: Fri, 10 Jul 2015 17:20:04 +0800
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Subject: [Patch v2 01/10] drbd: Fix the wrong logic of moving history
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Logic of moving history is wrong. May overlap
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history when more than two history.
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If won't extent more that two history. The loop
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can be delete.
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Signed-off-by: Nick Wang <nwang@suse.com>
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CC: Philipp Reisner <philipp.reisner@linbit.com>
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CC: Lars Ellenberg <lars.ellenberg@linbit.com>
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CC: drbd-dev@lists.linbit.com
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CC: linux-kernel@vger.kernel.org
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---
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drbd/drbd_main.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/drbd/drbd_main.c b/drbd/drbd_main.c
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index 9871894..a3dc39e 100644
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--- a/drbd/drbd_main.c
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+++ b/drbd/drbd_main.c
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@@ -3466,8 +3466,8 @@ void drbd_uuid_move_history(struct drbd_device *device) __must_hold(local)
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{
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int i;
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- for (i = UI_HISTORY_START; i < UI_HISTORY_END; i++)
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- device->ldev->md.uuid[i+1] = device->ldev->md.uuid[i];
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+ for (i = UI_HISTORY_END; i > UI_HISTORY_START; i--)
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+ device->ldev->md.uuid[i] = device->ldev->md.uuid[i-1];
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}
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void __drbd_uuid_set(struct drbd_device *device, int idx, u64 val) __must_hold(local)
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--
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1.8.4.5
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