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Message-Id: <20200414131348.444715-23-hch@lst.de>
Date: Tue, 14 Apr 2020 15:13:41 +0200
From: Christoph Hellwig <hch@....de>
To: Andrew Morton <akpm@...ux-foundation.org>,
"K. Y. Srinivasan" <kys@...rosoft.com>,
Haiyang Zhang <haiyangz@...rosoft.com>,
Stephen Hemminger <sthemmin@...rosoft.com>,
Wei Liu <wei.liu@...nel.org>, x86@...nel.org,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Laura Abbott <labbott@...hat.com>,
Sumit Semwal <sumit.semwal@...aro.org>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Minchan Kim <minchan@...nel.org>,
Nitin Gupta <ngupta@...are.org>
Cc: Robin Murphy <robin.murphy@....com>,
Christophe Leroy <christophe.leroy@....fr>,
Peter Zijlstra <peterz@...radead.org>,
linuxppc-dev@...ts.ozlabs.org, linux-hyperv@...r.kernel.org,
dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org,
linux-arch@...r.kernel.org, linux-mm@...ck.org,
iommu@...ts.linux-foundation.org,
linux-arm-kernel@...ts.infradead.org, linux-s390@...r.kernel.org,
bpf@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 22/29] mm: remove the prot argument to __vmalloc_node
This is always PAGE_KERNEL now.
Signed-off-by: Christoph Hellwig <hch@....de>
Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>
---
mm/vmalloc.c | 35 ++++++++++++++---------------------
1 file changed, 14 insertions(+), 21 deletions(-)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 466a449b3a15..de7952959e82 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2401,8 +2401,7 @@ void *vmap(struct page **pages, unsigned int count,
EXPORT_SYMBOL(vmap);
static void *__vmalloc_node(unsigned long size, unsigned long align,
- gfp_t gfp_mask, pgprot_t prot,
- int node, const void *caller);
+ gfp_t gfp_mask, int node, const void *caller);
static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
pgprot_t prot, int node)
{
@@ -2420,7 +2419,7 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
/* Please note that the recursion is strictly bounded. */
if (array_size > PAGE_SIZE) {
pages = __vmalloc_node(array_size, 1, nested_gfp|highmem_mask,
- PAGE_KERNEL, node, area->caller);
+ node, area->caller);
} else {
pages = kmalloc_node(array_size, nested_gfp, node);
}
@@ -2539,13 +2538,11 @@ EXPORT_SYMBOL_GPL(__vmalloc_node_range);
* @size: allocation size
* @align: desired alignment
* @gfp_mask: flags for the page level allocator
- * @prot: protection mask for the allocated pages
* @node: node to use for allocation or NUMA_NO_NODE
* @caller: caller's return address
*
- * Allocate enough pages to cover @size from the page level
- * allocator with @gfp_mask flags. Map them into contiguous
- * kernel virtual space, using a pagetable protection of @prot.
+ * Allocate enough pages to cover @size from the page level allocator with
+ * @gfp_mask flags. Map them into contiguous kernel virtual space.
*
* Reclaim modifiers in @gfp_mask - __GFP_NORETRY, __GFP_RETRY_MAYFAIL
* and __GFP_NOFAIL are not supported
@@ -2556,16 +2553,15 @@ EXPORT_SYMBOL_GPL(__vmalloc_node_range);
* Return: pointer to the allocated memory or %NULL on error
*/
static void *__vmalloc_node(unsigned long size, unsigned long align,
- gfp_t gfp_mask, pgprot_t prot,
- int node, const void *caller)
+ gfp_t gfp_mask, int node, const void *caller)
{
return __vmalloc_node_range(size, align, VMALLOC_START, VMALLOC_END,
- gfp_mask, prot, 0, node, caller);
+ gfp_mask, PAGE_KERNEL, 0, node, caller);
}
void *__vmalloc(unsigned long size, gfp_t gfp_mask)
{
- return __vmalloc_node(size, 1, gfp_mask, PAGE_KERNEL, NUMA_NO_NODE,
+ return __vmalloc_node(size, 1, gfp_mask, NUMA_NO_NODE,
__builtin_return_address(0));
}
EXPORT_SYMBOL(__vmalloc);
@@ -2573,15 +2569,15 @@ EXPORT_SYMBOL(__vmalloc);
static inline void *__vmalloc_node_flags(unsigned long size,
int node, gfp_t flags)
{
- return __vmalloc_node(size, 1, flags, PAGE_KERNEL,
- node, __builtin_return_address(0));
+ return __vmalloc_node(size, 1, flags, node,
+ __builtin_return_address(0));
}
void *__vmalloc_node_flags_caller(unsigned long size, int node, gfp_t flags,
void *caller)
{
- return __vmalloc_node(size, 1, flags, PAGE_KERNEL, node, caller);
+ return __vmalloc_node(size, 1, flags, node, caller);
}
/**
@@ -2656,8 +2652,8 @@ EXPORT_SYMBOL(vmalloc_user);
*/
void *vmalloc_node(unsigned long size, int node)
{
- return __vmalloc_node(size, 1, GFP_KERNEL, PAGE_KERNEL,
- node, __builtin_return_address(0));
+ return __vmalloc_node(size, 1, GFP_KERNEL, node,
+ __builtin_return_address(0));
}
EXPORT_SYMBOL(vmalloc_node);
@@ -2670,9 +2666,6 @@ EXPORT_SYMBOL(vmalloc_node);
* allocator and map them into contiguous kernel virtual space.
* The memory allocated is set to zero.
*
- * For tight control over page level allocator and protection flags
- * use __vmalloc_node() instead.
- *
* Return: pointer to the allocated memory or %NULL on error
*/
void *vzalloc_node(unsigned long size, int node)
@@ -2745,8 +2738,8 @@ void *vmalloc_exec(unsigned long size)
*/
void *vmalloc_32(unsigned long size)
{
- return __vmalloc_node(size, 1, GFP_VMALLOC32, PAGE_KERNEL,
- NUMA_NO_NODE, __builtin_return_address(0));
+ return __vmalloc_node(size, 1, GFP_VMALLOC32, NUMA_NO_NODE,
+ __builtin_return_address(0));
}
EXPORT_SYMBOL(vmalloc_32);
--
2.25.1
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