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Re: xfs: untangle the direct I/O and DAX path, fix DAX locking

from [Boaz Harrosh] [Permanent Link][Original]
To: Christoph Hellwig <hch@xxxxxx>, Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: xfs: untangle the direct I/O and DAX path, fix DAX locking
From: Boaz Harrosh <boaz@xxxxxxxxxxxxx>
Date: Tue, 28 Jun 2016 16:27:03 +0300
Cc: xfs@xxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-nvdimm@xxxxxxxxxxx
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On 06/28/2016 04:10 PM, Christoph Hellwig wrote:
> On Sat, Jun 25, 2016 at 09:00:45AM +1000, Dave Chinner wrote:
<>
> 
> Right.  And an existing application can get DAX turned on under its
> back, and will now suddently get different synchronization behavior.
> That is if it's writes happen to be aligned to the fs block size.
> 

Is there an actual application that does that? or is this purely
theoretical right now?


Thanks
Boaz
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