From: Christoph Lameter <clameter@sgi.com>
To: akpm@linux-foundation.org
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [18/18] SLUB: Use fallback for table of callers/freers of a slab cache
Date: Wed, 03 Oct 2007 20:59:53 -0700 [thread overview]
Message-ID: <20071004040005.850376534@sgi.com> (raw)
In-Reply-To: 20071004035935.042951211@sgi.com
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[-- Type: text/plain, Size: 870 bytes --]
The caller table can get quite large if there are many call sites for a
particular slab. Add GFP_FALLBACK allows falling back to vmalloc in case
the caller table gets too big and memory is fragmented. Currently we
would fail the operation.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
---
mm/slub.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux-2.6/mm/slub.c
===================================================================
--- linux-2.6.orig/mm/slub.c 2007-10-03 20:00:23.000000000 -0700
+++ linux-2.6/mm/slub.c 2007-10-03 20:01:12.000000000 -0700
@@ -3003,7 +3003,8 @@ static int alloc_loc_track(struct loc_tr
order = get_order(sizeof(struct location) * max);
- l = (void *)__get_free_pages(flags, order);
+ l = (void *)__get_free_pages(flags | __GFP_COMP | __GFP_VFALLBACK,
+ order);
if (!l)
return 0;
--
prev parent reply other threads:[~2007-10-04 4:05 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-04 3:59 [00/18] Virtual Compound Page Support V2 Christoph Lameter
2007-10-04 3:59 ` [01/18] vmalloc: clean up page array indexing Christoph Lameter
2007-10-04 3:59 ` [02/18] vunmap: return page array passed on vmap() Christoph Lameter
2007-10-04 3:59 ` [03/18] vmalloc_address(): Determine vmalloc address from page struct Christoph Lameter
2007-10-04 3:59 ` [04/18] Vcompound: Smart up virt_to_head_page() Christoph Lameter
2007-10-04 3:59 ` [05/18] Page flags: Add PageVcompound() Christoph Lameter
2007-10-04 3:59 ` [06/18] Vcompound: Update page address determination Christoph Lameter
2007-10-04 3:59 ` [07/18] Vcompound: Add compound_nth_page() to determine nth base page Christoph Lameter
2007-10-13 16:46 ` Compiling kernel 2.6.23.1 HELP animesh saxena
2007-10-13 17:12 ` Willy Tarreau
2007-10-14 2:35 ` Kristoffer Ericson
2007-10-04 3:59 ` [08/18] GFP_VFALLBACK: Allow fallback of compound pages to virtual mappings Christoph Lameter
2007-10-04 3:59 ` [09/18] Vcompound: GFP_VFALLBACK debugging aid Christoph Lameter
2007-10-04 3:59 ` [10/18] Sparsemem: Use fallback for the memmap Christoph Lameter
2007-10-04 3:59 ` [11/18] Page allocator: Use a higher order allocation for the zone wait table Christoph Lameter
2007-10-04 3:59 ` [12/18] Wait: Allow bit_waitqueue to wait on a bit in a virtual compound page Christoph Lameter
2007-10-04 3:59 ` [13/18] x86_64: Allow fallback for the stack Christoph Lameter
2007-10-04 11:56 ` Andi Kleen
2007-10-04 12:08 ` Peter Zijlstra
2007-10-04 12:25 ` Andi Kleen
2007-10-04 12:30 ` Peter Zijlstra
2007-10-04 17:40 ` Christoph Lameter
2007-10-04 19:20 ` Christoph Lameter
2007-10-04 19:39 ` Rik van Riel
2007-10-04 21:20 ` Christoph Lameter
2007-10-07 7:35 ` Nick Piggin
2007-10-08 17:36 ` Christoph Lameter
2007-10-08 12:55 ` Nick Piggin
2007-10-09 18:39 ` Christoph Lameter
2007-10-09 8:46 ` Nick Piggin
2007-10-10 1:26 ` Christoph Lameter
2007-10-09 9:56 ` Nick Piggin
2007-10-06 18:53 ` Bill Davidsen
2007-10-04 3:59 ` [14/18] Configure stack size Christoph Lameter
2007-10-04 4:36 ` Arjan van de Ven
2007-10-04 4:43 ` David Miller
2007-10-04 19:34 ` Christoph Lameter
2007-10-04 9:11 ` Andi Kleen
2007-10-04 19:26 ` Christoph Lameter
2007-10-04 3:59 ` [15/18] Fallback for temporary order 2 allocation Christoph Lameter
2007-10-04 3:59 ` [16/18] Virtual Compound page allocation from interrupt context Christoph Lameter
2007-10-04 3:59 ` [17/18] Virtual compound page freeing in " Christoph Lameter
2007-10-04 3:59 ` Christoph Lameter [this message]
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