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: [16/17] Allow virtual fallback for buffer_heads
Date: Tue, 25 Sep 2007 16:42:20 -0700 [thread overview]
Message-ID: <20070925234252.900513799@sgi.com> (raw)
In-Reply-To: 20070925234204.546836393@sgi.com
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This is in particular useful for large I/Os because it will allow > 100
allocs from the SLUB fast path without having to go to the page allocator.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
---
fs/buffer.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux-2.6/fs/buffer.c
===================================================================
--- linux-2.6.orig/fs/buffer.c 2007-09-18 15:44:37.000000000 -0700
+++ linux-2.6/fs/buffer.c 2007-09-18 15:44:51.000000000 -0700
@@ -3008,7 +3008,8 @@ void __init buffer_init(void)
int nrpages;
bh_cachep = KMEM_CACHE(buffer_head,
- SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|SLAB_MEM_SPREAD);
+ SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|SLAB_MEM_SPREAD|
+ SLAB_VFALLBACK);
/*
* Limit the bh occupancy to 10% of ZONE_NORMAL
--
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 ` [11/17] GFP_VFALLBACK for zone wait table Christoph Lameter
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 ` Christoph Lameter [this message]
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 ` [16/17] Allow virtual fallback for buffer_heads Christoph Lameter
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