From: Christoph Lameter <clameter@sgi.com>
To: akpm@linux-foundation.org
Cc: linux-mm@kvack.org, Dan Williams <dan.j.williams@intel.com>
Subject: [08/11] crypto: Use virtualizable compounds for temporary order 2 allocation
Date: Tue, 29 Apr 2008 21:42:59 -0700 [thread overview]
Message-ID: <20080430044320.758185153@sgi.com> (raw)
In-Reply-To: <20080430044251.266380837@sgi.com>
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[-- Type: text/plain, Size: 1288 bytes --]
The crypto subsystem needs an order 2 allocation. This is a temporary buffer
for xoring data so we can safely allow the use of a virtualizable compound.
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
---
crypto/xor.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: linux-2.6.25-rc8-mm1/crypto/xor.c
===================================================================
--- linux-2.6.25-rc8-mm1.orig/crypto/xor.c 2008-04-01 12:44:26.000000000 -0700
+++ linux-2.6.25-rc8-mm1/crypto/xor.c 2008-04-02 20:53:25.634569955 -0700
@@ -101,7 +101,7 @@ calibrate_xor_blocks(void)
void *b1, *b2;
struct xor_block_template *f, *fastest;
- b1 = (void *) __get_free_pages(GFP_KERNEL, 2);
+ b1 = __alloc_vcompound(GFP_KERNEL, 2);
if (!b1) {
printk(KERN_WARNING "xor: Yikes! No memory available.\n");
return -ENOMEM;
@@ -140,7 +140,7 @@ calibrate_xor_blocks(void)
#undef xor_speed
- free_pages((unsigned long)b1, 2);
+ __free_vcompound(b1);
active_template = fastest;
return 0;
--
--
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next prev parent reply other threads:[~2008-04-30 4:42 UTC|newest]
Thread overview: 12+ 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 ` [03/11] vmallocinfo: Support display of virtualized compound pages Christoph Lameter
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 ` Christoph Lameter [this message]
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
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