From 244d63ee345bd9d45c87f665ef5e3f7bcd5db45b Mon Sep 17 00:00:00 2001
From: David Rientjes <rientjes@google.com>
Date: Thu, 14 Jan 2016 15:19:35 -0800
Subject: [PATCH] mm, vmalloc: remove VM_VPAGES
VM_VPAGES is unnecessary, it's easier to check is_vmalloc_addr() when
reading /proc/vmallocinfo.
[akpm@linux-foundation.org: remove VM_VPAGES reference via kvfree()]
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/vmalloc.h | 1 -
mm/vmalloc.c | 8 ++------
2 files changed, 2 insertions(+), 7 deletions(-)
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 3bff87a25a42f..d1f1d338af205 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -14,7 +14,6 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */
#define VM_ALLOC 0x00000002 /* vmalloc() */
#define VM_MAP 0x00000004 /* vmap()ed pages */
#define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */
-#define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */
#define VM_UNINITIALIZED 0x00000020 /* vm_struct is not fully initialized */
#define VM_NO_GUARD 0x00000040 /* don't add guard page */
#define VM_KASAN 0x00000080 /* has allocated kasan shadow memory */
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 7007fe85840ee..58ceeb107960b 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1479,10 +1479,7 @@ static void __vunmap(const void *addr, int deallocate_pages)
__free_kmem_pages(page, 0);
}
- if (area->flags & VM_VPAGES)
- vfree(area->pages);
- else
- kfree(area->pages);
+ kvfree(area->pages);
}
kfree(area);
@@ -1592,7 +1589,6 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
if (array_size > PAGE_SIZE) {
pages = __vmalloc_node(array_size, 1, nested_gfp|__GFP_HIGHMEM,
PAGE_KERNEL, node, area->caller);
- area->flags |= VM_VPAGES;
} else {
pages = kmalloc_node(array_size, nested_gfp, node);
}
@@ -2650,7 +2646,7 @@ static int s_show(struct seq_file *m, void *p)
if (v->flags & VM_USERMAP)
seq_puts(m, " user");
- if (v->flags & VM_VPAGES)
+ if (is_vmalloc_addr(v->pages))
seq_puts(m, " vpages");
show_numa_info(m, v);
--
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