From: Dave Hansen Date: Tue, 18 Nov 2014 18:23:49 +0000 (-0800) Subject: x86: Cleanly separate use of asm-generic/mm_hooks.h X-Git-Tag: omap-for-v3.19/fixes-rc1~161^2~2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1ea1c032b8f8c23d86ef4db6d061527e9417f19;p=pandora-kernel.git x86: Cleanly separate use of asm-generic/mm_hooks.h asm-generic/mm_hooks.h provides some generic fillers for the 90% of architectures that do not need to hook some mmap-manipulation functions. A comment inside says: > Define generic no-op hooks for arch_dup_mmap and > arch_exit_mmap, to be included in asm-FOO/mmu_context.h > for any arch FOO which doesn't need to hook these. So, does x86 need to hook these? It depends on CONFIG_PARAVIRT. We *conditionally* include this generic header if we have CONFIG_PARAVIRT=n. That's madness. With this patch, x86 stops using asm-generic/mmu_hooks.h entirely. We use our own copies of the functions. The paravirt code provides some stubs if it is disabled, and we always call those stubs in our x86-private versions of arch_exit_mmap() and arch_dup_mmap(). Signed-off-by: Dave Hansen Cc: Dave Hansen Cc: x86@kernel.org Link: http://lkml.kernel.org/r/20141118182349.14567FA5@viggo.jf.intel.com Signed-off-by: Thomas Gleixner --- Reading git-diff-tree failed