linux-kernel - [Patch] percpu: use the right flag for get_vm

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Message-Id: <20090813060235.5516.12662.sendpatchset@localhost.localdomain>
Date:	Thu, 13 Aug 2009 02:00:13 -0400
From:	Amerigo Wang <amwang@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Tejun Heo <tj@...nel.org>, linux-mm@...ck.org,
	akpm@...ux-foundation.org, mingo@...e.hu,
	Amerigo Wang <amwang@...hat.com>
Subject: [Patch] percpu: use the right flag for get_vm_area()


get_vm_area() only accepts VM_* flags, not GFP_*.

And according to the doc of get_vm_area(), here should be
VM_ALLOC.

Signed-off-by: WANG Cong <amwang@...hat.com>
Cc: Tejun Heo <tj@...nel.org>
Cc: Ingo Molnar <mingo@...e.hu>

---
diff --git a/mm/percpu.c b/mm/percpu.c
index b70f2ac..3ef18c7 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -749,7 +749,7 @@ static struct pcpu_chunk *alloc_pcpu_chunk(void)
 	chunk->map[chunk->map_used++] = pcpu_unit_size;
 	chunk->page = chunk->page_ar;
 
-	chunk->vm = get_vm_area(pcpu_chunk_size, GFP_KERNEL);
+	chunk->vm = get_vm_area(pcpu_chunk_size, VM_ALLOC);
 	if (!chunk->vm) {
 		free_pcpu_chunk(chunk);
 		return NULL;
--
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