[PATCH v4 11/13] PM / Hibernate: Call flush_icache_range() on pages restored in-place

[Pavel Machek]

On Thu 2016-01-28 10:42:44, James Morse wrote:
> Some architectures require code written to memory as if it were data to be
> 'cleaned' from any data caches before the processor can fetch them as new
> instructions.
> 
> During resume from hibernate, the snapshot code copies some pages directly,
> meaning these architectures do not get a chance to perform their cache
> maintenance. Modify the read and decompress code to call
> flush_icache_range() on all pages that are restored, so that the restored
> in-place pages are guaranteed to be executable on these architectures.
> 
> Signed-off-by: James Morse <james.morse at arm.com>

Acked-by: Pavel Machek <pavel at ucw.cz>

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