From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: nfs invalidates lose pte dirty bits
Date: Thu, 22 Dec 2005 18:30:49 -0500 [thread overview]
Message-ID: <1135294250.3685.16.camel@lade.trondhjem.org> (raw)
In-Reply-To: <20051222175550.GT9576@opteron.random>
On Thu, 2005-12-22 at 18:55 +0100, Andrea Arcangeli wrote:
> Hello Andrew,
>
> this is yet another problem exposed by the new invalidate_inode_pages2
> semantics.
>
> If a mapping has dirty data (pte dirty and page clean), and an
> invalidate triggers, the filemap_write_and_wait will do nothing, but the
> invalidate_inode_pages2 will destroy the pte dirty bit and discard the
> pagecache.
See the latest git release where we introduce the nfs_sync_mapping()
helper.
Cheers,
Trond
next prev parent reply other threads:[~2005-12-22 23:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-22 17:55 Andrea Arcangeli
2005-12-22 23:30 ` Trond Myklebust [this message]
2005-12-23 2:36 ` Andrea Arcangeli
2005-12-23 8:41 ` Trond Myklebust
2005-12-23 15:17 ` Andrea Arcangeli
2005-12-23 21:02 ` Trond Myklebust
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