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Date: Sun, 11 Feb 2018 17:33:10 -0700 From: kys@...hange.microsoft.com To: gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org, devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com, vkuznets@...hat.com, jasowang@...hat.com, leann.ogasawara@...onical.com, marcelo.cerri@...onical.com, sthemmin@...rosoft.com Cc: Jia-Ju Bai <baijiaju1990@...il.com>, "K . Y . Srinivasan" <kys@...rosoft.com> Subject: [PATCH 02/12] hyper-v: use GFP_KERNEL for hv_context.hv_numa_map From: Jia-Ju Bai <baijiaju1990@...il.com> The kzalloc function is called with GFP_ATOMIC. But according to driver call graph, it is not in atomic context, namely no spinlock is held nor in an interrupt handler. This GFP_ATOMIC is unnecessary, and replace with GFP_KERNEL. Signed-off-by: Jia-Ju Bai <baijiaju1990@...il.com> Reviewed-by: Vitaly Kuznetsov <vkuznets@...hat.com> Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com> --- drivers/hv/hv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index fe96aab9e794..b6cacc4cccf2 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -147,7 +147,7 @@ int hv_synic_alloc(void) int cpu; hv_context.hv_numa_map = kzalloc(sizeof(struct cpumask) * nr_node_ids, - GFP_ATOMIC); + GFP_KERNEL); if (hv_context.hv_numa_map == NULL) { pr_err("Unable to allocate NUMA map\n"); goto err; -- 2.15.1
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