From: Christoph Lameter <cl@linux-foundation.org>
To: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, rusty@rustcorp.com.au, jeremy@goop.org,
ebiederm@xmission.com, travis@sgi.com,
herbert@gondor.apana.org.au, xemul@openvz.org
Subject: Re: [patch 3/4] cpu alloc: The allocator
Date: Tue, 30 Sep 2008 06:38:00 -0500 [thread overview]
Message-ID: <48E20F98.4010106@linux-foundation.org> (raw)
In-Reply-To: <1222756559.10002.23.camel@penberg-laptop>
Pekka Enberg wrote:
>> +/*
>> + * Basic allocation unit. A bit map is created to track the use of each
>> + * UNIT_SIZE element in the cpu area.
>> + */
>> +#define UNIT_TYPE int
>> +#define UNIT_SIZE sizeof(UNIT_TYPE)
>> +
>> +int units; /* Actual available units */
>
> What is this thing? Otherwise looks good to me.
This is the number of units available from the cpu allocator. Its determined
on bootup and the bitmap is sized correspondingly.
next prev parent reply other threads:[~2008-09-30 11:39 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-29 19:35 [patch 0/4] Cpu alloc V6: Replace percpu allocator in modules.c Christoph Lameter
2008-09-29 19:35 ` [patch 1/4] Make the per cpu reserve configurable Christoph Lameter
2008-09-29 19:35 ` [patch 2/4] percpu: Rename variables PERCPU_ENOUGH_ROOM -> PERCPU_AREA_SIZE Christoph Lameter
2008-09-29 19:35 ` [patch 3/4] cpu alloc: The allocator Christoph Lameter
2008-09-30 6:35 ` Pekka Enberg
2008-09-30 11:38 ` Christoph Lameter [this message]
2008-09-30 11:48 ` Pekka Enberg
2008-09-30 12:12 ` Christoph Lameter
2008-10-03 7:33 ` Andrew Morton
2008-10-03 7:43 ` Pekka Enberg
2008-10-03 8:20 ` Andrew Morton
2008-10-03 14:15 ` Christoph Lameter
2008-10-03 12:48 ` Christoph Lameter
2008-10-05 21:10 ` Rusty Russell
2008-10-07 13:27 ` Christoph Lameter
2008-09-29 19:35 ` [patch 4/4] cpu alloc: Use cpu allocator instead of the builtin modules per cpu allocator Christoph Lameter
2008-09-30 22:28 ` Rusty Russell
2008-09-30 22:27 ` [patch 0/4] Cpu alloc V6: Replace percpu allocator in modules.c Rusty Russell
2008-10-07 23:34 ` Andrew Morton
2008-10-08 15:10 ` Christoph Lameter
-- strict thread matches above, loose matches on Subject: below --
2008-09-19 14:58 [patch 0/4] Cpu alloc V5: " Christoph Lameter
2008-09-19 14:59 ` [patch 3/4] cpu alloc: The allocator Christoph Lameter
2008-09-19 15:23 ` KOSAKI Motohiro
2008-09-19 16:27 ` Eric Dumazet
2008-09-19 16:49 ` Christoph Lameter
2008-09-19 17:00 ` Christoph Lameter
2008-09-19 20:32 ` 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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