[PATCH 4.9 148/164] PCI: hv: Allocate interrupt descriptors with GFP_ATOMIC

From	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups	linux.kernel
Subject	[PATCH 4.9 148/164] PCI: hv: Allocate interrupt descriptors with GFP_ATOMIC
Date	2017-05-23 23:30 +0200
Message-ID	<tKpxo-AI-35@gated-at.bofh.it> (permalink)
References	<tKoBk-8ko-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: K. Y. Srinivasan <kys@microsoft.com>

commit 59c58ceeea9cdc6144d7b0303753e6bd26d87455 upstream.

The memory allocation here needs to be non-blocking.  Fix the issue.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 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;

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[PATCH 4.9 148/164] PCI: hv: Allocate interrupt descriptors with GFP_ATOMIC Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-23 23:30 +0200

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