This is a note to let you know that I've just added the patch titled
scsi: mpt3sas: Fix for block device of raid exists even after deleting raid disk
to the 4.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
scsi-mpt3sas-fix-for-block-device-of-raid-exists-even-after-deleting-raid-disk.patch
and it can be found in the queue-4.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6d3a56ed098566bc83d6c2afa74b4199c12ea074 Mon Sep 17 00:00:00 2001
From: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxx>
Date: Fri, 28 Oct 2016 10:09:12 +0530
Subject: scsi: mpt3sas: Fix for block device of raid exists even after deleting raid disk
From: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxx>
commit 6d3a56ed098566bc83d6c2afa74b4199c12ea074 upstream.
While merging mpt3sas & mpt2sas code, we added the is_warpdrive check
condition on the wrong line
---------------------------------------------------------------------------
scsih_target_alloc(struct scsi_target *starget)
sas_target_priv_data->handle = raid_device->handle;
sas_target_priv_data->sas_address = raid_device->wwid;
sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
- raid_device->starget = starget;
+ sas_target_priv_data->raid_device = raid_device;
+ if (ioc->is_warpdrive)
+ raid_device->starget = starget;
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
return 0;
------------------------------------------------------------------------------
That check should be for the line sas_target_priv_data->raid_device =
raid_device;
Due to above hunk, we are not initializing raid_device's starget for
raid volumes, and so during raid disk deletion driver is not calling
scsi_remove_target() API as driver observes starget field of
raid_device's structure as NULL.
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@xxxxxxxxxxxx>
Fixes: 7786ab6aff9 ("mpt3sas: Ported WarpDrive product SSS6200 support")
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -1273,9 +1273,9 @@ scsih_target_alloc(struct scsi_target *s
sas_target_priv_data->handle = raid_device->handle;
sas_target_priv_data->sas_address = raid_device->wwid;
sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
- sas_target_priv_data->raid_device = raid_device;
if (ioc->is_warpdrive)
- raid_device->starget = starget;
+ sas_target_priv_data->raid_device = raid_device;
+ raid_device->starget = starget;
}
spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
return 0;
Patches currently in stable-queue which might be from sreekanth.reddy@xxxxxxxxxxxx are
queue-4.8/scsi-mpt3sas-fix-for-block-device-of-raid-exists-even-after-deleting-raid-disk.patch
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