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author | Dave Hansen <dave.hansen@linux.intel.com> | 2014-11-18 10:23:49 -0800 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2014-11-19 11:54:13 +0100 |
commit | a1ea1c032b8f8c23d86ef4db6d061527e9417f19 (patch) | |
tree | e66aa84c5b7fde33207e251675ff119ac77be6b5 /arch/um | |
parent | 68c009c4137927fd4ffd3e653bb5209d752c1d42 (diff) | |
download | linux-a1ea1c032b8f8c23d86ef4db6d061527e9417f19.tar.bz2 |
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 <dave.hansen@linux.intel.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/20141118182349.14567FA5@viggo.jf.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/um')
0 files changed, 0 insertions, 0 deletions