From: David Howells <dhowells@redhat.com>
To: Matthew Wilcox <matthew@wil.cx>
Cc: Andrew Morton <akpm@zip.com.au>,
linux-mm@kvack.org, manfred@colorfullife.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Make slab use alloc_pages directly
Date: Mon, 24 Jan 2005 17:03:58 +0000 [thread overview]
Message-ID: <24391.1106586238@redhat.com> (raw)
In-Reply-To: <20050124165412.GL31455@parcelfarce.linux.theplanet.co.uk>
Matthew Wilcox <matthew@wil.cx> wrote:
> __get_free_pages() calls alloc_pages, finds the page_address() and
> throws away the struct page *. Slab then calls virt_to_page to get it
> back again. Much more efficient for slab to call alloc_pages itself,
> as well as making the NUMA and non-NUMA cases more similarr to each other.
Looks reasonable. Should also work in the NOMMU case.
David
WARNING: multiple messages have this Message-ID (diff)
From: David Howells <dhowells@redhat.com>
To: Matthew Wilcox <matthew@wil.cx>
Cc: Andrew Morton <akpm@zip.com.au>,
linux-mm@kvack.org, manfred@colorfullife.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Make slab use alloc_pages directly
Date: Mon, 24 Jan 2005 17:03:58 +0000 [thread overview]
Message-ID: <24391.1106586238@redhat.com> (raw)
In-Reply-To: <20050124165412.GL31455@parcelfarce.linux.theplanet.co.uk>
Matthew Wilcox <matthew@wil.cx> wrote:
> __get_free_pages() calls alloc_pages, finds the page_address() and
> throws away the struct page *. Slab then calls virt_to_page to get it
> back again. Much more efficient for slab to call alloc_pages itself,
> as well as making the NUMA and non-NUMA cases more similarr to each other.
Looks reasonable. Should also work in the NOMMU case.
David
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next prev parent reply other threads:[~2005-01-24 17:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-24 16:54 [PATCH] Make slab use alloc_pages directly Matthew Wilcox
2005-01-24 16:54 ` Matthew Wilcox
2005-01-24 17:03 ` David Howells [this message]
2005-01-24 17:03 ` David Howells
2005-01-24 19:30 ` Manfred Spraul
2005-01-24 19:30 ` Manfred Spraul
2005-01-25 0:58 ` [PATCH] Remove special case in kmem_getpages() Brian Gerst
2005-01-25 1:04 ` Matthew Wilcox
2005-01-25 1:04 ` Matthew Wilcox
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