The patch titled
Subject: mm, vmalloc: remove VM_VPAGES
has been added to the -mm tree. Its filename is
mm-vmalloc-remove-vm_vpages.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-vmalloc-remove-vm_vpages.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-vmalloc-remove-vm_vpages.patch
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------------------------------------------------------
From: David Rientjes <rientjes@xxxxxxxxxx>
Subject: mm, vmalloc: remove VM_VPAGES
VM_VPAGES is unnecessary, it's easier to check is_vmalloc_addr() when
reading /proc/vmallocinfo.
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/vmalloc.h | 1 -
mm/vmalloc.c | 3 +--
2 files changed, 1 insertion(+), 3 deletions(-)
diff -puN include/linux/vmalloc.h~mm-vmalloc-remove-vm_vpages include/linux/vmalloc.h
--- a/include/linux/vmalloc.h~mm-vmalloc-remove-vm_vpages
+++ a/include/linux/vmalloc.h
@@ -14,7 +14,6 @@ struct vm_area_struct; /* vma defining
#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 -puN mm/vmalloc.c~mm-vmalloc-remove-vm_vpages mm/vmalloc.c
--- a/mm/vmalloc.c~mm-vmalloc-remove-vm_vpages
+++ a/mm/vmalloc.c
@@ -1589,7 +1589,6 @@ static void *__vmalloc_area_node(struct
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);
}
@@ -2647,7 +2646,7 @@ static int s_show(struct seq_file *m, vo
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);
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
mm-vmalloc-remove-vm_vpages.patch
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