This is a note to let you know that I've just added the patch titled
ibmvscsis: Fix sleeping in interrupt context
to the 4.9-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:
ibmvscsis-fix-sleeping-in-interrupt-context.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a5b0e4062fb225155189e593699bbfcd0597f8b5 Mon Sep 17 00:00:00 2001
From: "Bryant G. Ly" <bryantly@xxxxxxxxxxxxxxxxxx>
Date: Wed, 11 Jan 2017 13:16:42 -0600
Subject: ibmvscsis: Fix sleeping in interrupt context
From: Bryant G. Ly <bryantly@xxxxxxxxxxxxxxxxxx>
commit a5b0e4062fb225155189e593699bbfcd0597f8b5 upstream.
Currently, dma_alloc_coherent is being called with a GFP_KERNEL
flag which allows it to sleep in an interrupt context, need to
change to GFP_ATOMIC.
Tested-by: Steven Royer <seroyer@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Michael Cyr <mikecyr@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Bryant G. Ly <bryantly@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
@@ -1239,7 +1239,7 @@ static long ibmvscsis_adapter_info(struc
}
info = dma_alloc_coherent(&vscsi->dma_dev->dev, sizeof(*info), &token,
- GFP_KERNEL);
+ GFP_ATOMIC);
if (!info) {
dev_err(&vscsi->dev, "bad dma_alloc_coherent %p\n",
iue->target);
@@ -1357,7 +1357,7 @@ static int ibmvscsis_cap_mad(struct scsi
}
cap = dma_alloc_coherent(&vscsi->dma_dev->dev, olen, &token,
- GFP_KERNEL);
+ GFP_ATOMIC);
if (!cap) {
dev_err(&vscsi->dev, "bad dma_alloc_coherent %p\n",
iue->target);
Patches currently in stable-queue which might be from bryantly@xxxxxxxxxxxxxxxxxx are
queue-4.9/ibmvscsis-fix-max-transfer-length.patch
queue-4.9/ibmvscsis-fix-sleeping-in-interrupt-context.patch
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