From: Christoph Lameter <clameter@sgi.com>
To: akpm@linux-foundation.org
Cc: linux-mm@kvack.org
Subject: [03/11] vmallocinfo: Support display of virtualized compound pages
Date: Tue, 29 Apr 2008 21:42:54 -0700 [thread overview]
Message-ID: <20080430044319.612279708@sgi.com> (raw)
In-Reply-To: 20080430044251.266380837@sgi.com
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[-- Type: text/plain, Size: 1678 bytes --]
Add another flag to the vmalloc subsystem to mark vmalloc areas used
for virtualized compound pages. Display vcompound in /proc/vmallocinfo.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
---
include/linux/vmalloc.h | 1 +
mm/vmalloc.c | 3 +++
2 files changed, 4 insertions(+)
Index: linux-2.6.25-rc8-mm2/include/linux/vmalloc.h
===================================================================
--- linux-2.6.25-rc8-mm2.orig/include/linux/vmalloc.h 2008-04-14 20:01:25.295741503 -0700
+++ linux-2.6.25-rc8-mm2/include/linux/vmalloc.h 2008-04-14 20:01:27.465740891 -0700
@@ -12,6 +12,7 @@ struct vm_area_struct;
#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_VCOMPOUND 0x00000020 /* Virtualized Compound Page */
/* bits [20..32] reserved for arch specific ioremap internals */
/*
Index: linux-2.6.25-rc8-mm2/mm/vmalloc.c
===================================================================
--- linux-2.6.25-rc8-mm2.orig/mm/vmalloc.c 2008-04-14 20:01:25.295741503 -0700
+++ linux-2.6.25-rc8-mm2/mm/vmalloc.c 2008-04-14 20:01:27.485750108 -0700
@@ -972,6 +972,9 @@ static int s_show(struct seq_file *m, vo
if (v->flags & VM_VPAGES)
seq_printf(m, " vpages");
+ if (v->flags & VM_VCOMPOUND)
+ seq_printf(m, " vcompound");
+
seq_putc(m, '\n');
return 0;
}
--
--
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next prev parent reply other threads:[~2008-04-30 4:42 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-30 4:42 [00/11] Virtualizable Compound Page Support V5 Christoph Lameter
2008-04-30 4:42 ` [01/11] vmalloc: Return page array on vunmap Christoph Lameter
2008-04-30 4:42 ` [02/11] vcompound: pageflags: Add PageVcompound() Christoph Lameter
2008-04-30 4:42 ` Christoph Lameter [this message]
2008-04-30 4:42 ` [04/11] vcompound: Core piece for virtualizable compound page allocation Christoph Lameter
2008-04-30 4:42 ` [05/11] vcompound: Debugging aid Christoph Lameter
2008-04-30 4:42 ` [06/11] sparsemem: Use virtualizable compound page Christoph Lameter
2008-04-30 4:42 ` [07/11] vcompound: bit waitqueue support Christoph Lameter
2008-04-30 4:42 ` [08/11] crypto: Use virtualizable compounds for temporary order 2 allocation Christoph Lameter
2008-04-30 4:43 ` [09/11] slub: Use virtualizable compound for buffer Christoph Lameter
2008-04-30 4:43 ` [10/11] vcompound: Fallback for zone wait table Christoph Lameter
2008-04-30 4:43 ` [11/11] e1000: Avoid vmalloc through virtualizable compound page Christoph Lameter
2008-04-30 4:43 ` Christoph Lameter
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