From: Christoph Lameter <clameter@sgi.com>
To: unlisted-recipients:; (no To-header on input)
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [11/17] GFP_VFALLBACK for zone wait table.
Date: Tue, 25 Sep 2007 16:42:15 -0700 [thread overview]
Message-ID: <20070925234251.740483810@sgi.com> (raw)
In-Reply-To: 20070925234204.546836393@sgi.com
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[-- Type: text/plain, Size: 1002 bytes --]
Currently vmalloc is used for the zone wait table possibly generating the need
to generate lots of TLBs to access the tables. We can now use GFP_VFALLBACK to
attempt the use of a physically contiguous page that can then use the large
kernel TLBs.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
---
mm/page_alloc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6/mm/page_alloc.c
===================================================================
--- linux-2.6.orig/mm/page_alloc.c 2007-09-24 18:48:06.000000000 -0700
+++ linux-2.6/mm/page_alloc.c 2007-09-24 18:48:16.000000000 -0700
@@ -2550,7 +2550,9 @@ int zone_wait_table_init(struct zone *zo
* To use this new node's memory, further consideration will be
* necessary.
*/
- zone->wait_table = (wait_queue_head_t *)vmalloc(alloc_size);
+ zone->wait_table = (wait_queue_head_t *)
+ __get_free_pages(GFP_VFALLBACK,
+ get_order(alloc_size));
}
if (!zone->wait_table)
return -ENOMEM;
--
next prev parent reply other threads:[~2007-09-25 23:46 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-25 23:42 [00/17] Virtual Compound Page Support V1 Christoph Lameter
2007-09-25 23:42 ` [01/17] Vmalloc: Move vmalloc_to_page to mm/vmalloc Christoph Lameter
2007-09-25 23:42 ` [02/17] vmalloc: add const Christoph Lameter
2007-09-25 23:42 ` [03/17] i386: Resolve dependency of asm-i386/pgtable.h on highmem.h Christoph Lameter
2007-09-25 23:42 ` [04/17] is_vmalloc_addr(): Check if an address is within the vmalloc boundaries Christoph Lameter
2007-09-25 23:42 ` [05/17] vmalloc: clean up page array indexing Christoph Lameter
2007-09-25 23:42 ` [06/17] vunmap: return page array passed on vmap() Christoph Lameter
2007-09-25 23:42 ` [07/17] vmalloc_address(): Determine vmalloc address from page struct Christoph Lameter
2007-09-25 23:42 ` [08/17] GFP_VFALLBACK: Allow fallback of compound pages to virtual mappings Christoph Lameter
2007-09-25 23:42 ` [09/17] VFALLBACK: Debugging aid Christoph Lameter
2007-09-25 23:42 ` [10/17] Use GFP_VFALLBACK for sparsemem Christoph Lameter
2007-09-25 23:42 ` Christoph Lameter [this message]
2007-09-25 23:42 ` [12/17] Virtual Compound page allocation from interrupt context Christoph Lameter
2007-09-25 23:42 ` [13/17] Virtual compound page freeing in " Christoph Lameter
2007-09-28 4:52 ` KAMEZAWA Hiroyuki
2007-09-28 17:35 ` Christoph Lameter
2007-09-28 23:58 ` KAMEZAWA Hiroyuki
2007-09-25 23:42 ` [14/17] Allow bit_waitqueue to wait on a bit in a vmalloc area Christoph Lameter
2007-09-25 23:42 ` [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK Christoph Lameter
2007-09-25 23:42 ` [16/17] Allow virtual fallback for buffer_heads Christoph Lameter
2007-09-25 23:42 ` [17/17] Allow virtual fallback for dentries Christoph Lameter
-- strict thread matches above, loose matches on Subject: below --
2007-09-19 3:36 [00/17] [RFC] Virtual Compound Page Support Christoph Lameter
2007-09-19 3:36 ` [11/17] GFP_VFALLBACK for zone wait table Christoph Lameter
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