>From c16036b925f2929df6eaabeaa451fc5361ec7f0f Mon Sep 17 00:00:00 2001
From: Adam Kwolek <adam.kwolek@xxxxxxxxx>
Date: Thu, 18 Feb 2010 11:27:51 +0100
Subject: [PATCH] OLCE: Fix for bio I/O error
Changes to be committed:
modified: raid5.c
During OLCE/reshape when delta_disks is greatrer than 0, none of request was rescheduled.
This leads to bio I/O error as requests confilcts with reshape process
Signed-off-by: Adam Kwolek <adam.kwolek@xxxxxxxxx>
---
drivers/md/raid5.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 724798e..656a852 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3920,6 +3920,13 @@ static int make_request(struct request_queue *q, struct bio * bi)
spin_unlock_irq(&conf->device_lock);
schedule();
goto retry;
+ } else {
+ if ((mddev->delta_disks > 0) &&
+ (logical_sector < conf->reshape_safe)) {
+ spin_unlock_irq(&conf->device_lock);
+ schedule();
+ goto retry;
+ }
}
}
spin_unlock_irq(&conf->device_lock);
--
1.6.0.2
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