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From: Christoph Hellwig <hch@lst.de>
Subject: cleanup the page faul path
Date: Mon, 28 Aug 2017 08:36:57 +0200
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Cc: jack@suse.cz

Hi alļ,

these two patches simplify the xfs/iomap page fault path.  They came up in
the context of MAP_SYNC support, but are useful on their own, and might be
good to get into 4.14 before the real MAP_SYNC work starts hitting the
tree in some form.