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From: cai <junjiec@gmail.com>
To: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][fat] use mpage_readpage when cluster size is page-alignment
Date: Thu, 29 Dec 2005 15:38:02 +0900	[thread overview]
Message-ID: <43B3844A.5050401@gmail.com> (raw)
In-Reply-To: <87u0ctwf93.fsf@devron.myhome.or.jp>

hi,

>Can't we use mpage_readpage() always? IIRC, that should work fine
>without disadvantage.
>
>Thanks.
>  
>
it should work, but maybe some performance loses if the
cluster size is not page-alignment, for example, 4 sector/cluster
in a 4KB/page system.
because it will fall back to the block_read_full_page when
non-adjacent block found in do_mpage_readpage, i think.
the same applies to mpage_readpages too.

thanks.
                                      junjie


  reply	other threads:[~2005-12-29  6:34 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-28  7:56 [RFC][fat] use mpage_readpage when cluster size is page-alignment junjie cai
     [not found] ` <2cd57c900512280040g594ba003y@mail.gmail.com>
2005-12-28  9:36   ` junjie cai
2005-12-28 12:57 ` OGAWA Hirofumi
2005-12-29  6:38   ` cai [this message]
2005-12-29  8:06     ` Pekka Enberg
2005-12-29  8:52       ` cai
2005-12-29  9:12         ` Pekka J Enberg
2005-12-29  9:19     ` OGAWA Hirofumi
2005-12-29 10:24       ` cai

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