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| author | Will Deacon <will.deacon@arm.com> | 2015-05-29 18:28:44 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-07-27 11:08:40 +0100 |
| commit | 4b3dc9679cf779339d9049800803dfc3c83433d1 (patch) | |
| tree | 8c04c26a614240f3142b7afafc071719fc3ea0f5 /arch/arm64/mm/flush.c | |
| parent | 52da443ec4d0a807b720527eb474f9c2878cd671 (diff) | |
| download | linux-4b3dc9679cf779339d9049800803dfc3c83433d1.tar.bz2 | |
arm64: force CONFIG_SMP=y and remove redundant #ifdefs
Nobody seems to be producing !SMP systems anymore, so this is just
becoming a source of kernel bugs, particularly if people want to use
coherent DMA with non-shared pages.
This patch forces CONFIG_SMP=y for arm64, removing a modest amount of
code in the process.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/mm/flush.c')
| -rw-r--r-- | arch/arm64/mm/flush.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/arm64/mm/flush.c b/arch/arm64/mm/flush.c index 4dfa3975ce5b..c26b804015e8 100644 --- a/arch/arm64/mm/flush.c +++ b/arch/arm64/mm/flush.c @@ -60,14 +60,10 @@ void copy_to_user_page(struct vm_area_struct *vma, struct page *page, unsigned long uaddr, void *dst, const void *src, unsigned long len) { -#ifdef CONFIG_SMP preempt_disable(); -#endif memcpy(dst, src, len); flush_ptrace_access(vma, page, uaddr, dst, len); -#ifdef CONFIG_SMP preempt_enable(); -#endif } void __sync_icache_dcache(pte_t pte, unsigned long addr) |