linux-kernel - Re: userspace pagecache management tool

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Message-ID: <75b66ecd0703031716k5b9fd96br9ecd93f1fc3a6032@mail.gmail.com>
Date:	Sat, 3 Mar 2007 20:16:09 -0500
From:	"Lee Revell" <rlrevell@...-job.com>
To:	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: userspace pagecache management tool

On 3/3/07, Andrew Morton <akpm@...ux-foundation.org> wrote:
> The tool uses an LD_PRELOAD hack to intercept glibc's read(), pread(),
> write(), pwrite(), close() and dup2() functions.  pagecache control is done
> via posix_fadvise() and sync_file_range().
>

How could this have any effect on the updatedb problem?  updatedb does
not read() anything, it just open()s and stat()s every file on the
disk.

Lee
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