From: Jiang Liu <liuj97@gmail.com>
Date: Tue, 7 Jan 2014 14:17:09 +0000 (+0800)
Subject: arm64: introduce interfaces to hotpatch kernel and module code
X-Git-Tag: v3.14-rc1~153^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ae16480785de1da84f21d1698f304a52f9790c49;p=pandora-kernel.git

arm64: introduce interfaces to hotpatch kernel and module code

Introduce three interfaces to patch kernel and module code:
aarch64_insn_patch_text_nosync():
	patch code without synchronization, it's caller's responsibility
	to synchronize all CPUs if needed.
aarch64_insn_patch_text_sync():
	patch code and always synchronize with stop_machine()
aarch64_insn_patch_text():
	patch code and synchronize with stop_machine() if needed

Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jiang Liu <liuj97@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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