From: Andrew Morton <akpm@linux-foundation.org>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Gavin Shan <shangw@linux.vnet.ibm.com>,
David Miller <davem@davemloft.net>,
Yinghai Lu <yinghai@kernel.org>, Tejun Heo <tj@kernel.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 10/10] mm: remove sparsemem allocation details from the bootmem allocator
Date: Thu, 10 May 2012 14:44:39 -0700 [thread overview]
Message-ID: <20120510144439.eba9c486.akpm@linux-foundation.org> (raw)
In-Reply-To: <1336390672-14421-11-git-send-email-hannes@cmpxchg.org>
On Mon, 7 May 2012 13:37:52 +0200
Johannes Weiner <hannes@cmpxchg.org> wrote:
> alloc_bootmem_section() derives allocation area constraints from the
> specified sparsemem section. This is a bit specific for a generic
> memory allocator like bootmem, though, so move it over to sparsemem.
>
> As __alloc_bootmem_node_nopanic() already retries failed allocations
> with relaxed area constraints, the fallback code in sparsemem.c can be
> removed and the code becomes a bit more compact overall.
>
> ...
>
> @@ -332,9 +334,9 @@ static void __init check_usemap_section_nr(int nid, unsigned long *usemap)
> #else
> static unsigned long * __init
> sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat,
> - unsigned long count)
> + unsigned long size)
> {
> - return NULL;
> + return alloc_bootmem_node_nopanic(pgdat, size)
You've been bad. Your penance is to runtime test this code with
CONFIG_MEMORY_HOTREMOVE=n!
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2012-05-10 21:44 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-07 11:37 [patch 00/10] (no)bootmem bits for 3.5 Johannes Weiner
2012-05-07 11:37 ` [patch 01/10] mm: bootmem: fix checking the bitmap when finally freeing bootmem Johannes Weiner
2012-05-07 18:07 ` Tejun Heo
2012-05-07 11:37 ` [patch 02/10] mm: bootmem: remove redundant offset check " Johannes Weiner
2012-05-07 18:08 ` Tejun Heo
2012-05-07 11:37 ` [patch 03/10] mm: bootmem: rename alloc_bootmem_core to alloc_bootmem_bdata Johannes Weiner
2012-05-07 11:37 ` [patch 04/10] mm: bootmem: split out goal-to-node mapping from goal dropping Johannes Weiner
2012-05-07 11:37 ` [patch 05/10] mm: bootmem: allocate in order node+goal, goal, node, anywhere Johannes Weiner
2012-05-07 11:37 ` [patch 06/10] mm: bootmem: unify allocation policy of (non-)panicking node allocations Johannes Weiner
2012-05-07 11:37 ` [patch 07/10] mm: nobootmem: panic on node-specific allocation failure Johannes Weiner
2012-05-07 19:17 ` Yinghai Lu
2012-05-07 11:37 ` [patch 08/10] mm: nobootmem: unify allocation policy of (non-)panicking node allocations Johannes Weiner
2012-05-07 19:23 ` Yinghai Lu
2012-05-07 11:37 ` [patch 09/10] mm: bootmem: pass pgdat instead of pgdat->bdata down the stack Johannes Weiner
2012-05-07 11:37 ` [patch 10/10] mm: remove sparsemem allocation details from the bootmem allocator Johannes Weiner
2012-05-07 18:19 ` Tejun Heo
2012-05-07 18:21 ` David Miller
2012-05-10 21:44 ` Andrew Morton [this message]
2012-05-15 11:47 ` Johannes Weiner
2012-05-07 20:41 ` [patch 00/10] (no)bootmem bits for 3.5 Sam Ravnborg
2012-05-07 22:01 ` Johannes Weiner
2012-05-08 17:57 ` Sam Ravnborg
2012-05-09 17:35 ` Tejun Heo
2012-05-09 17:54 ` Christoph Lameter
2012-05-09 18:08 ` Tejun Heo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120510144439.eba9c486.akpm@linux-foundation.org \
--to=akpm@linux-foundation.org \
--cc=davem@davemloft.net \
--cc=hannes@cmpxchg.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=shangw@linux.vnet.ibm.com \
--cc=tj@kernel.org \
--cc=yinghai@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).