From: David Howells <dhowells@redhat.com>
To: Nick Piggin <npiggin@suse.de>
Cc: dhowells@redhat.com, torvalds@osdl.org,
linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: Should PAGE_CACHE_SIZE be discarded?
Date: Thu, 15 Nov 2007 12:05:03 +0000 [thread overview]
Message-ID: <311.1195128303@redhat.com> (raw)
In-Reply-To: <20071114213543.GC31048@wotan.suse.de>
Nick Piggin <npiggin@suse.de> wrote:
> It can be pretty well any power of 2 from PAGE_SIZE upwards, with
> compound pages. None of the filesystems should really care at all.
> It's not even a new concept, hugetlbfs uses HPAGE_SIZE...
Ummm... The filesystem has to care. If the VFS/VM says 'fill this page' you
do need to know how big the page is or whether it's even actually several
pages.
David
next prev parent reply other threads:[~2007-11-15 12:05 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-14 13:56 Should PAGE_CACHE_SIZE be discarded? David Howells
2007-11-14 15:23 ` Nick Piggin
2007-11-14 15:59 ` David Howells
2007-11-14 21:35 ` Nick Piggin
2007-11-15 12:05 ` David Howells [this message]
2007-11-15 14:15 ` Benny Halevy
2007-11-15 14:46 ` David Howells
2007-11-15 21:30 ` Nick Piggin
2007-11-15 17:09 ` Jörn Engel
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