This is a note to let you know that I've just added the patch titled
PCI: hv: Allocate interrupt descriptors with GFP_ATOMIC
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:
pci-hv-allocate-interrupt-descriptors-with-gfp_atomic.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 59c58ceeea9cdc6144d7b0303753e6bd26d87455 Mon Sep 17 00:00:00 2001
From: "K. Y. Srinivasan" <kys@xxxxxxxxxxxxx>
Date: Fri, 24 Mar 2017 11:07:22 -0700
Subject: PCI: hv: Allocate interrupt descriptors with GFP_ATOMIC
From: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
commit 59c58ceeea9cdc6144d7b0303753e6bd26d87455 upstream.
The memory allocation here needs to be non-blocking. Fix the issue.
Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Reviewed-by: Long Li <longli@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pci/host/pci-hyperv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/pci/host/pci-hyperv.c
+++ b/drivers/pci/host/pci-hyperv.c
@@ -868,7 +868,7 @@ static void hv_compose_msi_msg(struct ir
hv_int_desc_free(hpdev, int_desc);
}
- int_desc = kzalloc(sizeof(*int_desc), GFP_KERNEL);
+ int_desc = kzalloc(sizeof(*int_desc), GFP_ATOMIC);
if (!int_desc)
goto drop_reference;
Patches currently in stable-queue which might be from kys@xxxxxxxxxxxxx are
queue-4.9/pci-hv-allocate-interrupt-descriptors-with-gfp_atomic.patch
queue-4.9/pci-hv-specify-cpu_affinity_all-for-msi-affinity-when-32-cpus.patch