mirror of https://gitee.com/openkylin/linux.git
Moves a test which determines if we actually need to perform a
cacheflush to the right place. That's a bug which is harmless on UP but a severe bug on SMP. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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@ -376,6 +376,13 @@ static inline void local_r4k_flush_cache_page(void *args)
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pmd_t *pmdp;
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pte_t *ptep;
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/*
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* If ownes no valid ASID yet, cannot possibly have gotten
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* this page into the cache.
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*/
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if (cpu_context(smp_processor_id(), vma->vm_mm) == 0)
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return;
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page &= PAGE_MASK;
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pgdp = pgd_offset(mm, page);
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pudp = pud_offset(pgdp, page);
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@ -432,13 +439,6 @@ static void r4k_flush_cache_page(struct vm_area_struct *vma, unsigned long page,
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{
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struct flush_cache_page_args args;
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/*
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* If ownes no valid ASID yet, cannot possibly have gotten
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* this page into the cache.
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*/
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if (cpu_context(smp_processor_id(), vma->vm_mm) == 0)
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return;
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args.vma = vma;
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args.page = page;
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