From: William Lee Irwin III <wli@holomorphy.com>
To: Andrew Morton <akpm@osdl.org>
Cc: riel@redhat.com, steiner@sgi.com, anton@samba.org,
jes@trained-monkey.org, viro@math.psu.edu,
linux-kernel@vger.kernel.org, jbarnes@sgi.com
Subject: Re: hash table sizes
Date: Tue, 25 Nov 2003 20:23:09 -0800 [thread overview]
Message-ID: <20031126042309.GG8039@holomorphy.com> (raw)
In-Reply-To: <20031125202545.7a4ca5d3.akpm@osdl.org>
William Lee Irwin III <wli@holomorphy.com> wrote:
>> -#define pfn_valid(pfn) ((pfn) < num_physpages)
>> +#define pfn_valid(pfn) \
>> +({ \
>> + unsigned long __pfn__ = pfn; \
>> + u8 __nid__ = pfn_to_nid(__pfn__); \
>> + pg_data_t *__pgdat__; \
>> + __pgdat__ = __nid__ < MAX_NUMNODES ? NODE_DATA(__nid__) : NULL; \
>> + __pgdat__ && \
>> + __pfn__ >= __pgdat__->node_start_pfn && \
>> + __pfn__ - __pgdat__->node_start_pfn \
>> + < __pgdat__->node_spanned_pages; \
>> +})
On Tue, Nov 25, 2003 at 08:25:45PM -0800, Andrew Morton wrote:
> Boggle.
> Does this evaulate to the same thing on non-discontigmem? (surely no)
> Can we please arrange for it to?
The non-discontigmem case is unaltered, as it's handled in
include/asm-i386/page.h under a #ifdef. The semantics agree.
-- wli
next prev parent reply other threads:[~2003-11-26 4:23 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-25 13:35 hash table sizes Jes Sorensen
2003-11-25 13:42 ` William Lee Irwin III
2003-11-25 13:54 ` Jes Sorensen
2003-11-25 16:25 ` Thomas Schlichter
2003-11-25 17:52 ` Antonio Vargas
2003-11-25 17:54 ` William Lee Irwin III
2003-11-25 20:48 ` Jack Steiner
2003-11-25 21:07 ` Andrew Morton
2003-11-25 21:14 ` Jesse Barnes
2003-11-25 21:24 ` Andrew Morton
2003-11-26 2:14 ` David S. Miller
2003-11-26 5:27 ` Matt Mackall
2003-11-28 14:15 ` Jes Sorensen
2003-11-28 14:52 ` Jack Steiner
2003-11-28 16:22 ` Jes Sorensen
2003-11-28 19:35 ` Jack Steiner
2003-11-28 21:18 ` Jörn Engel
2003-12-01 9:46 ` Jes Sorensen
2003-12-01 21:06 ` Anton Blanchard
2003-12-01 22:57 ` Martin J. Bligh
2003-11-25 21:16 ` Anton Blanchard
2003-11-25 23:11 ` Jack Steiner
2003-11-26 3:39 ` Rik van Riel
2003-11-26 3:59 ` William Lee Irwin III
2003-11-26 4:25 ` Andrew Morton
2003-11-26 4:23 ` William Lee Irwin III [this message]
2003-11-26 5:14 ` Martin J. Bligh
2003-11-26 9:51 ` William Lee Irwin III
2003-11-26 16:17 ` Martin J. Bligh
2003-11-26 7:25 ` Anton Blanchard
2003-11-26 5:53 Zhang, Yanmin
2003-11-29 10:39 Manfred Spraul
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=20031126042309.GG8039@holomorphy.com \
--to=wli@holomorphy.com \
--cc=akpm@osdl.org \
--cc=anton@samba.org \
--cc=jbarnes@sgi.com \
--cc=jes@trained-monkey.org \
--cc=linux-kernel@vger.kernel.org \
--cc=riel@redhat.com \
--cc=steiner@sgi.com \
--cc=viro@math.psu.edu \
/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).