diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-05-07 11:17:13 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-07 11:17:34 +0200 |
| commit | 44347d947f628060b92449702071bfe1d31dfb75 (patch) | |
| tree | c6ed74610d5b3295df4296659f80f5feb94b28cc /arch/arm/include/asm | |
| parent | d94fc523f3c35bd8013f04827e94756cbc0212f4 (diff) | |
| parent | 413f81eba35d6ede9289b0c8a920c013a84fac71 (diff) | |
Merge branch 'linus' into tracing/core
Merge reason: tracing/core was on a .30-rc1 base and was missing out on
on a handful of tracing fixes present in .30-rc5-almost.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/tlb.h | 25 | ||||
| -rw-r--r-- | arch/arm/include/asm/unistd.h | 2 |
2 files changed, 23 insertions, 4 deletions
diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h index 857f1dfac79..321c83e43a1 100644 --- a/arch/arm/include/asm/tlb.h +++ b/arch/arm/include/asm/tlb.h @@ -36,6 +36,8 @@ struct mmu_gather { struct mm_struct *mm; unsigned int fullmm; + unsigned long range_start; + unsigned long range_end; }; DECLARE_PER_CPU(struct mmu_gather, mmu_gathers); @@ -63,7 +65,19 @@ tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) put_cpu_var(mmu_gathers); } -#define tlb_remove_tlb_entry(tlb,ptep,address) do { } while (0) +/* + * Memorize the range for the TLB flush. + */ +static inline void +tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep, unsigned long addr) +{ + if (!tlb->fullmm) { + if (addr < tlb->range_start) + tlb->range_start = addr; + if (addr + PAGE_SIZE > tlb->range_end) + tlb->range_end = addr + PAGE_SIZE; + } +} /* * In the case of tlb vma handling, we can optimise these away in the @@ -73,15 +87,18 @@ tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) static inline void tlb_start_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) { - if (!tlb->fullmm) + if (!tlb->fullmm) { flush_cache_range(vma, vma->vm_start, vma->vm_end); + tlb->range_start = TASK_SIZE; + tlb->range_end = 0; + } } static inline void tlb_end_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) { - if (!tlb->fullmm) - flush_tlb_range(vma, vma->vm_start, vma->vm_end); + if (!tlb->fullmm && tlb->range_end > 0) + flush_tlb_range(vma, tlb->range_start, tlb->range_end); } #define tlb_remove_page(tlb,page) free_page_and_swap_cache(page) diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h index 010618487cf..94cc58ef61a 100644 --- a/arch/arm/include/asm/unistd.h +++ b/arch/arm/include/asm/unistd.h @@ -387,6 +387,8 @@ #define __NR_dup3 (__NR_SYSCALL_BASE+358) #define __NR_pipe2 (__NR_SYSCALL_BASE+359) #define __NR_inotify_init1 (__NR_SYSCALL_BASE+360) +#define __NR_preadv (__NR_SYSCALL_BASE+361) +#define __NR_pwritev (__NR_SYSCALL_BASE+362) /* * The following SWIs are ARM private. |