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dax: Use copy_from_iter_nocache
authorMatthew Wilcox <willy@linux.intel.com>
Fri, 3 Jul 2015 14:40:39 +0000 (10:40 -0400)
committerDan Duval <dan.duval@oracle.com>
Wed, 7 Dec 2016 17:18:56 +0000 (12:18 -0500)
commitdd8d1a97d16f7cb6894a47018f0c517cb993e099
tree23353cd12f131c4592467fca34dc27f69a56953ftree
parent14fffb3d1b30e3b3f293ea1f1e276a7a2d5f7e3fcommit | diff
dax: Use copy_from_iter_nocache

Orabug: 22913653

When userspace does a write, there's no need for the written data to
pollute the CPU cache.  This matches the original XIP code.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
(cherry picked from commit 872eb127e3a6cddcfca1410bb808d9b9bc773dc1)
Signed-off-by: Dan Duval <dan.duval@oracle.com>
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