From: Andrew Morton <akpm@linux-foundation.org>
To: Joe Jin <joe.jin@oracle.com>,
bill.irwin@oracle.com, linux-kernel@vger.kernel.org,
gurudas.pai@oracle.com
Cc: Paul Jackson <pj@sgi.com>
Subject: Re: [PATCH] Add nid sanity on alloc_pages_node
Date: Thu, 12 Jul 2007 23:57:07 -0700 [thread overview]
Message-ID: <20070712235707.a08f0d42.akpm@linux-foundation.org> (raw)
In-Reply-To: <20070712234938.c77f3a48.akpm@linux-foundation.org>
On Thu, 12 Jul 2007 23:49:38 -0700 Andrew Morton <akpm@linux-foundation.org> wrote:
> first_node(node_online_map);
Incidentally, we have a helper for this operation:
#if MAX_NUMNODES > 1
...
#define first_online_node first_node(node_online_map)
...
#else
...
#define first_online_node 0
...
#endif
So I suppose we should use that - it should generate better code for
non-NUMA builds.
It's a pretty sadly implemented helper though. It should be
"first_online_node()", not "first_online_node".
I'm scratching my head over that min_t in __first_node(), too. I don't think
it's possible for find_first_bit(..., N) to return anything >N _anyway_. And if
it does, we want to know about it.
<looks at Paul>
next prev parent reply other threads:[~2007-07-13 7:03 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-13 2:45 [PATCH] Add nid sanity on alloc_pages_node Joe Jin
2007-07-13 5:18 ` Andrew Morton
2007-07-13 6:40 ` Joe Jin
2007-07-13 6:49 ` Andrew Morton
2007-07-13 6:57 ` Andrew Morton [this message]
2007-07-13 8:29 ` Paul Jackson
2007-07-13 8:38 ` Andrew Morton
2007-07-13 8:43 ` Paul Jackson
2007-07-13 8:49 ` Andrew Morton
2007-07-13 8:54 ` Paul Jackson
2007-07-13 12:48 ` Benjamin Herrenschmidt
2007-07-13 8:03 ` Joe Jin
2007-07-13 8:15 ` Andrew Morton
2007-07-13 12:18 ` Joe Jin
2007-07-13 12:42 ` Paul Jackson
2007-07-14 17:40 ` Nish Aravamudan
2007-07-14 18:04 ` Andrew Morton
2007-07-14 20:47 ` Nish Aravamudan
2007-07-13 8:04 ` gurudas pai
2007-07-13 8:19 ` Andrew Morton
2007-07-13 12:37 ` gurudas pai
2007-07-13 8:37 ` Joe Jin
2007-07-13 8:44 ` Andrew Morton
2007-07-17 15:04 ` Hugh Dickins
2007-07-17 16:32 ` Andrew Morton
2007-07-17 17:26 ` Hugh Dickins
2007-07-17 18:58 ` Andrew Morton
2007-07-17 19:49 ` Hugh Dickins
2007-07-17 20:01 ` Andrew Morton
2007-07-17 20:35 ` Hugh Dickins
2007-07-18 1:40 ` Joe Jin
2007-07-18 4:49 ` Hugh Dickins
2007-07-18 5:45 ` Andrew Morton
2007-07-18 7:34 ` Joe Jin
2007-07-18 6:32 ` Joe Jin
2007-07-18 8:09 ` Joe Jin
2007-07-18 8:35 ` Hugh Dickins
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