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Date:	Sat, 18 Jul 2015 18:04:21 +0000
From:	"Dixit, Ashutosh" <ashutosh.dixit@...el.com>
To:	'Toshi Kani' <toshi.kani@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	"Dutt, Sudeep" <sudeep.dutt@...el.com>,
	"Rao, Nikhil" <nikhil.rao@...el.com>,
	"Williams, Dan J" <dan.j.williams@...el.com>
Subject: Regression in v4.2-rc1: vmalloc_to_page with ioremap

vmalloc_to_page with ioremap'd memory used to work correctly till v4.1. In
v4.2-rc1 when ioremap is done using huge pages vmalloc_to_page on ioremap'd
memory crashes. Are there plans to fix this?

An example of the use of vmalloc_to_page with ioremap is in the Intel MIC SCIF
driver (drivers/misc/mic/scif/scif_nodeqp.c) which dma map's the ioremap'd range
of one device to a second device.

Thanks,
Ashutosh
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