From: Gal Pressman <galpress@amazon.com>
Date: Mon, 10 Dec 2018 15:17:25 +0000 (+0200)
Subject: RDMA/vmw_pvrdma: Use atomic memory allocation in create AH
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bb97bd1891697d7cce8d03e71de238d043e9c086;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

RDMA/vmw_pvrdma: Use atomic memory allocation in create AH

[ Upstream commit a276a4d93bf1580d737f38d1810e5f4b166f3edd ]

Create address handle callback should not sleep, use GFP_ATOMIC instead of
GFP_KERNEL for memory allocation.

Fixes: 29c8d9eba550 ("IB: Add vmw_pvrdma driver")
Cc: Adit Ranadive <aditr@vmware.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c
index aa533f08e017..5c7aa6ff1538 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c
@@ -550,7 +550,7 @@ struct ib_ah *pvrdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr,
 	if (!atomic_add_unless(&dev->num_ahs, 1, dev->dsr->caps.max_ah))
 		return ERR_PTR(-ENOMEM);
 
-	ah = kzalloc(sizeof(*ah), GFP_KERNEL);
+	ah = kzalloc(sizeof(*ah), GFP_ATOMIC);
 	if (!ah) {
 		atomic_dec(&dev->num_ahs);
 		return ERR_PTR(-ENOMEM);