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s390: avoid z13 cache aliasing
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 14 Jan 2015 16:51:17 +0000 (17:51 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Thu, 22 Jan 2015 11:15:59 +0000 (12:15 +0100)
Avoid cache aliasing on z13 by aligning shared objects to multiples
of 512K. The virtual addresses of a page from a shared file needs
to have identical bits in the range 2^12 to 2^18.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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