Messages in this thread |  | | | Subject | Re: [PATCH 03/10] mm: Add support for a filesystem to control swap files | | From | Peter Zijlstra <> | | Date | Mon, 12 Sep 2011 11:04:45 +0200 |
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On Fri, 2011-09-09 at 09:36 -0400, Christoph Hellwig wrote: > The equivalent of ->direct_IO should be used for both reads and writes.
So the difference between DIO and swapIO is that swapIO needs the block map pinned in memory.. So at the very least you'll need those swap_{activate,deactivate} aops. The read/write-page thingies could indeed be shared with DIO.
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