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From: Yannis Klonatos <klonatos@ics.forth.gr>
To: xfs@oss.sgi.com
Subject: xfs_buf and buffercache/pagecache connection
Date: Mon, 31 May 2010 19:31:39 +0300	[thread overview]
Message-ID: <4C03E46B.9040407@ics.forth.gr> (raw)

Hello,

         I was looking to add a kernel hook to my system in order to 
monitor buffer-cache hit and misses. Initially I was
planning to add my modifications to the __getblk(). However, i noticed 
that XFS does not directly use the buffer-cache
for its pages but it seems to implement its own buffer.
         What I am now looking for is 1) the place where XFS checks 
whether a page exists in its buffer or not and 2)
what are the possible interactions between xfs_buf and the Linux kernel 
buffer-cache.
         I would appreciate any information regarding the above issues.

Thanks in advance,
Yannis Klonatos





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             reply	other threads:[~2010-05-31 16:30 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-31 16:31 Yannis Klonatos [this message]
2010-05-31 18:04 ` xfs_buf and buffercache/pagecache connection Andi Kleen
2010-05-31 18:25   ` Yannis Klonatos
2010-05-31 22:06 ` Dave Chinner

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