powerpc/slb: Add documentation on runtime patching of SLB encoding
authorAnshuman Khandual <khandual@linux.vnet.ibm.com>
Wed, 29 Jul 2015 07:10:02 +0000 (12:40 +0530)
committerMichael Ellerman <mpe@ellerman.id.au>
Wed, 12 Aug 2015 05:04:52 +0000 (15:04 +1000)
This patch adds some documentation to patch_slb_encoding() explaining
how it works.

Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
[mpe: Update change log and mention the signedness of the immediate]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/mm/slb.c

Simple merge