From: Dave Kleikamp <shaggy@austin.ibm.com>
To: UZAIR LAKHANI <uzairr_bs1b@yahoo.com>
Cc: linux-fsdevel@vger.kernel.org
Subject: Re: Diff b/w generic_file_read & do_sync_read
Date: Wed, 23 Aug 2006 10:55:45 -0500 [thread overview]
Message-ID: <1156348545.9322.5.camel@kleikamp.austin.ibm.com> (raw)
In-Reply-To: <20060823141158.66808.qmail@web37507.mail.mud.yahoo.com>
On Wed, 2006-08-23 at 07:11 -0700, UZAIR LAKHANI wrote:
> Hello All,
>
> I want to find out the difference between
> generic_file_read and do_sync_read. The thing I have
> got upto now is that generic_file_read uses the page
> cache for doing read therefore we must implement
> readpage function with generic_file_read.
>
> On the other hand do_sync_read uses aio_read function
> for doing read. I want a little bit explanation about
> the difference b/w these two.
There really isn't too much difference between the two. There is a set
of patches in the -mm kernel that cleans up some of the duplicity and
removes generic_file_read completely:
http://marc.theaimsgroup.com/?l=linux-kernel&m=115214448319794&w=2
Shaggy
--
David Kleikamp
IBM Linux Technology Center
prev parent reply other threads:[~2006-08-23 15:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-23 14:11 Diff b/w generic_file_read & do_sync_read UZAIR LAKHANI
2006-08-23 15:55 ` Dave Kleikamp [this message]
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