From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Fri, 22 Feb 2019 05:46:01 +0000 (+0000)
Subject: habanalabs: use GFP_ATOMIC under spin lock
X-Git-Tag: v5.1-rc1~147^2~42
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=668ae7288e82aa8e7f7cc40b8e13248305d752e7;p=linux.git

habanalabs: use GFP_ATOMIC under spin lock

A spin lock is taken here so we should use GFP_ATOMIC.

Fixes: 0feaf86d4e69 ("habanalabs: add virtual memory and MMU modules")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/misc/habanalabs/memory.c b/drivers/misc/habanalabs/memory.c
index 9236e52852c6..9e3491dc3b55 100644
--- a/drivers/misc/habanalabs/memory.c
+++ b/drivers/misc/habanalabs/memory.c
@@ -120,7 +120,7 @@ static int alloc_device_memory(struct hl_ctx *ctx, struct hl_mem_in *args,
 
 	spin_lock(&vm->idr_lock);
 	handle = idr_alloc(&vm->phys_pg_pack_handles, phys_pg_pack, 1, 0,
-				GFP_KERNEL);
+				GFP_ATOMIC);
 	spin_unlock(&vm->idr_lock);
 
 	if (handle < 0) {