| To: | Dave Chinner <david@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: Directory fsync |
| From: | Christoph Hellwig <hch@xxxxxxxxxxxxx> |
| Date: | Sun, 25 Sep 2011 20:51:07 -0400 |
| Cc: | Michael Monnerie <michael.monnerie@xxxxxxxxxxxxxxxxxxx>, xfs@xxxxxxxxxxx, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Zhu Han <schumi.han@xxxxxxxxx> |
| In-reply-to: | <20110926002811.GA3159@dastard> |
| References: | <CAF7KpS8h2KDsLVzwAj=5ig-yuuiCwjQSVk0Nfy9UJ0qiyAqeCQ@xxxxxxxxxxxxxx> <20110923163354.GA24319@xxxxxxxxxxxxx> <201109240109.45532@xxxxxx> <20110926002811.GA3159@dastard> |
| User-agent: | Mutt/1.5.21 (2010-09-15) |
On Mon, Sep 26, 2011 at 10:28:11AM +1000, Dave Chinner wrote: > All it means is that the directory fsync() is a no-op that only > costs CPU time. Currently it also causes a superflous cache flush, but I have a patch in my QA queue to fix that and reduce the (already tiny) CPU overhead a bit more. |
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