From: Christoph Lameter <cl@linux-foundation.org>
To: Eric Dumazet <dada1@cosmosbay.com>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, jeremy@goop.org, ebiederm@xmission.com,
travis@sgi.com, herbert@gondor.apana.org.au, xemul@openvz.org,
penberg@cs.helsinki.fi
Subject: Re: [patch 3/4] cpu alloc: The allocator
Date: Fri, 19 Sep 2008 12:00:53 -0500 [thread overview]
Message-ID: <48D3DAC5.9090308@linux-foundation.org> (raw)
In-Reply-To: <48D3D836.40306@linux-foundation.org>
Completely wrong. We need this patch that Eric suggested:
Subject: cpu_alloc: Allow alignment < UNIT_SIZE
Limit the minimum alignment to UNIT_SIZE.
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Index: linux-2.6/mm/cpu_alloc.c
===================================================================
--- linux-2.6.orig/mm/cpu_alloc.c 2008-09-19 11:47:30.000000000 -0500
+++ linux-2.6/mm/cpu_alloc.c 2008-09-19 11:56:47.000000000 -0500
@@ -86,6 +86,9 @@
WARN_ON(align > PAGE_SIZE);
+ if (align < UNIT_SIZE)
+ align = UNIT_SIZE;
+
spin_lock_irqsave(&cpu_alloc_map_lock, flags);
first = 1
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Lameter <cl@linux-foundation.org>
To: Eric Dumazet <dada1@cosmosbay.com>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, jeremy@goop.org, ebiederm@xmission.com,
travis@sgi.com, herbert@gondor.apana.org.au, xemul@openvz.org,
penberg@cs.helsinki.fi
Subject: Re: [patch 3/4] cpu alloc: The allocator
Date: Fri, 19 Sep 2008 12:00:53 -0500 [thread overview]
Message-ID: <48D3DAC5.9090308@linux-foundation.org> (raw)
In-Reply-To: <48D3D836.40306@linux-foundation.org>
Completely wrong. We need this patch that Eric suggested:
Subject: cpu_alloc: Allow alignment < UNIT_SIZE
Limit the minimum alignment to UNIT_SIZE.
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Index: linux-2.6/mm/cpu_alloc.c
===================================================================
--- linux-2.6.orig/mm/cpu_alloc.c 2008-09-19 11:47:30.000000000 -0500
+++ linux-2.6/mm/cpu_alloc.c 2008-09-19 11:56:47.000000000 -0500
@@ -86,6 +86,9 @@
WARN_ON(align > PAGE_SIZE);
+ if (align < UNIT_SIZE)
+ align = UNIT_SIZE;
+
spin_lock_irqsave(&cpu_alloc_map_lock, flags);
first = 1
--
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next prev parent reply other threads:[~2008-09-19 17:02 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-19 14:58 [patch 0/4] Cpu alloc V5: Replace percpu allocator in modules.c Christoph Lameter
2008-09-19 14:58 ` Christoph Lameter
2008-09-19 14:59 ` [patch 1/4] Make the per cpu reserve configurable Christoph Lameter
2008-09-19 14:59 ` Christoph Lameter
2008-09-20 3:55 ` KAMEZAWA Hiroyuki
2008-09-20 3:55 ` KAMEZAWA Hiroyuki
2008-09-20 23:15 ` Christoph Lameter
2008-09-20 23:15 ` Christoph Lameter
2008-09-19 14:59 ` [patch 2/4] percpu: Rename variables PERCPU_ENOUGH_ROOM -> PERCPU_AREA_SIZE Christoph Lameter
2008-09-19 14:59 ` Christoph Lameter
2008-09-19 14:59 ` [patch 3/4] cpu alloc: The allocator Christoph Lameter
2008-09-19 14:59 ` Christoph Lameter
2008-09-19 15:23 ` KOSAKI Motohiro
2008-09-19 15:23 ` KOSAKI Motohiro
2008-09-19 16:27 ` Eric Dumazet
2008-09-19 16:27 ` Eric Dumazet
2008-09-19 16:49 ` Christoph Lameter
2008-09-19 16:49 ` Christoph Lameter
2008-09-19 17:00 ` Christoph Lameter [this message]
2008-09-19 17:00 ` Christoph Lameter
2008-09-19 20:32 ` Christoph Lameter
2008-09-19 20:32 ` Christoph Lameter
2008-09-19 14:59 ` [patch 4/4] cpu alloc: Use cpu allocator instead of the builtin modules per cpu allocator Christoph Lameter
2008-09-19 14:59 ` Christoph Lameter
2008-09-19 15:28 ` [patch 0/4] Cpu alloc V5: Replace percpu allocator in modules.c KOSAKI Motohiro
2008-09-19 15:28 ` KOSAKI Motohiro
2008-09-19 15:50 ` Christoph Lameter
2008-09-19 15:50 ` Christoph Lameter
-- strict thread matches above, loose matches on Subject: below --
2008-09-29 19:35 [patch 0/4] Cpu alloc V6: " Christoph Lameter
2008-09-29 19:35 ` [patch 3/4] cpu alloc: The allocator Christoph Lameter
2008-09-29 19:35 ` Christoph Lameter
2008-09-30 6:35 ` Pekka Enberg
2008-09-30 6:35 ` Pekka Enberg
2008-09-30 11:38 ` Christoph Lameter
2008-09-30 11:38 ` Christoph Lameter
2008-09-30 11:48 ` Pekka Enberg
2008-09-30 11:48 ` Pekka Enberg
2008-09-30 12:12 ` Christoph Lameter
2008-09-30 12:12 ` Christoph Lameter
2008-10-03 7:33 ` Andrew Morton
2008-10-03 7:33 ` Andrew Morton
2008-10-03 7:43 ` Pekka Enberg
2008-10-03 7:43 ` Pekka Enberg
2008-10-03 8:20 ` Andrew Morton
2008-10-03 8:20 ` Andrew Morton
2008-10-03 14:15 ` Christoph Lameter
2008-10-03 14:15 ` Christoph Lameter
2008-10-03 12:48 ` Christoph Lameter
2008-10-03 12:48 ` Christoph Lameter
2008-10-05 21:10 ` Rusty Russell
2008-10-05 21:10 ` Rusty Russell
2008-10-07 13:27 ` Christoph Lameter
2008-10-07 13:27 ` Christoph Lameter
2008-09-18 23:36 [patch 0/4] Cpu alloc V4: Replace percpu allocator in modules.c Christoph Lameter
2008-09-18 23:36 ` [patch 3/4] cpu alloc: The allocator Christoph Lameter
2008-09-19 7:58 ` Pekka Enberg
2008-09-19 13:11 ` Christoph Lameter
2008-09-19 14:12 ` Pekka Enberg
2008-09-19 14:27 ` Christoph Lameter
2008-09-19 14:35 ` Pekka Enberg
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