From c296861291669f305deef19b78042330d7135017 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Wed, 18 Feb 2009 14:48:12 -0800
Subject: [PATCH] vmalloc: add __get_vm_area_caller()
We have get_vm_area_caller() and __get_vm_area() but not
__get_vm_area_caller()
On powerpc, I use __get_vm_area() to separate the ranges of addresses
given to vmalloc vs. ioremap (various good reasons for that) so in order
to be able to implement the new caller tracking in /proc/vmallocinfo, I
need a "_caller" variant of it.
(akpm: needed for ongoing powerpc development, so merge it early)
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/vmalloc.h | 4 ++++
mm/vmalloc.c | 8 ++++++++
2 files changed, 12 insertions(+)
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 506e7620a9863..9c0890c7a06a3 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -84,6 +84,10 @@ extern struct vm_struct *get_vm_area_caller(unsigned long size,
unsigned long flags, void *caller);
extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
unsigned long start, unsigned long end);
+extern struct vm_struct *__get_vm_area_caller(unsigned long size,
+ unsigned long flags,
+ unsigned long start, unsigned long end,
+ void *caller);
extern struct vm_struct *get_vm_area_node(unsigned long size,
unsigned long flags, int node,
gfp_t gfp_mask);
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 75f49d312e8c1..4dd2636d0b926 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1106,6 +1106,14 @@ struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
}
EXPORT_SYMBOL_GPL(__get_vm_area);
+struct vm_struct *__get_vm_area_caller(unsigned long size, unsigned long flags,
+ unsigned long start, unsigned long end,
+ void *caller)
+{
+ return __get_vm_area_node(size, flags, start, end, -1, GFP_KERNEL,
+ caller);
+}
+
/**
* get_vm_area - reserve a contiguous kernel virtual area
* @size: size of the area
--
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