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Message-Id: <1477629552-27404-1-git-send-email-Sreekanth.Reddy@broadcom.com>
Date: Fri, 28 Oct 2016 10:09:12 +0530
From: Sreekanth Reddy <sreekanth.reddy@...adcom.com>
To: jejb@...nel.org, hch@...radead.org
Cc: martin.petersen@...cle.com, linux-scsi@...r.kernel.org,
Sathya.Prakash@...adcom.com, linux-kernel@...r.kernel.org,
suganath-prabu.subramani@...adcom.com,
chaitra.basappa@...adcom.com, stable@...r.kernel.org,
Sreekanth Reddy <Sreekanth.Reddy@...adcom.com>
Subject: [PATCH RESEND] mpt3sas: Fix for block device of raid exists even after deleting raid disk
While merging mpt3sas & mpt2sas code, we posted below patch for WarpDrive
support,
mpt3sas: Ported WarpDrive product SSS6200 support
commit id is 7786ab6aff
In this patch and in the below hunk, we have added 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;
------------------------------------------------------------------------------
Actually that check should be for below 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@...adcom.com>
Cc: <stable@...r.kernel.org>
---
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 981be7b..618c9df8 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -1279,9 +1279,9 @@ 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;
- 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;
--
2.4.3
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