linux-kernel - Re: Re: [RFC/PATCH] revoke/frevoke system calls V2

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Message-Id: <1154017809.13509.64.camel@localhost.localdomain>
Date:	Thu, 27 Jul 2006 17:30:09 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Pekka J Enberg <penberg@...Helsinki.FI>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	akpm@...l.org, viro@...iv.linux.org.uk, tytso@....edu,
	tigran@...itas.com
Subject: Re: Re: [RFC/PATCH] revoke/frevoke system calls V2

Ar Iau, 2006-07-27 am 19:01 +0300, ysgrifennodd Pekka J Enberg:
> Yes revoke calls it too, but is that sufficient, or do we need ->revoke?
> Ouch. You are right. I need to stick that invalidate_inode_pages2 
> back in there. The do_fsync call takes care of writes only, obviously. 

Actually that isn't true either - it takes care of *regular file*
writes. Devices will need a revoke hook and thats really probably only
right. If they don't have one just -EOPNOTSUPP, you can check it before
you begin any other processing so its easy to check.

Alan
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