mm/vmalloc: don't set area->caller twice

The caller address has already been set in set_vmalloc_vm(), there's no
need to set it again in __vmalloc_area_node.

Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index dea15e6..285f0e7 100644 (file)
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1546,7 +1546,7 @@ static void *__vmalloc_node(unsigned long size, unsigned long align,
                            gfp_t gfp_mask, pgprot_t prot,
                            int node, const void *caller);
 static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
-                                pgprot_t prot, int node, const void *caller)
+                                pgprot_t prot, int node)
 {
        const int order = 0;
        struct page **pages;
@@ -1560,13 +1560,12 @@ 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|__GFP_HIGHMEM,
-                               PAGE_KERNEL, node, caller);
+                               PAGE_KERNEL, node, area->caller);
                area->flags |= VM_VPAGES;
        } else {
                pages = kmalloc_node(array_size, nested_gfp, node);
        }
        area->pages = pages;
-       area->caller = caller;
        if (!area->pages) {
                remove_vm_area(area->addr);
                kfree(area);
@@ -1634,7 +1633,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
        if (!area)
                goto fail;
 
-       addr = __vmalloc_area_node(area, gfp_mask, prot, node, caller);
+       addr = __vmalloc_area_node(area, gfp_mask, prot, node);
        if (!addr)
                goto fail;