Date: Wed, 21 May 2003 18:38:14 +0100
From: Christoph Hellwig <hch@infradead.org>
To: Ross Biro <rossb@google.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Patch FIOFLUSH
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	Ross Biro <rossb@google.com>, linux-kernel@vger.kernel.org
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In-Reply-To: <3ECBB723.7070707@google.com>; from rossb@google.com on Wed, May 21, 2003 at 10:28:03AM -0700
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On Wed, May 21, 2003 at 10:28:03AM -0700, Ross Biro wrote:
> 
> Here's a patch against 2.4.18 that allows user space to flush a file 
> from both the buffer cache and the page cache.  The reason for flushing 
> a file from the caches is to the read the file again to verify it made 
> it to more permanent storage correctly.  Someone may want to add 
> similiar code to 2.5.

This came up at SGI some time ago and the right solution is _not_ a new
ioctl but fadvise(..., POSIX_FADV_DONTNEED).   I'll submit a clean backport
once 2.4.21 is out (if that will ever happen)

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