diff options
Diffstat (limited to 'arch/arm/mm/flush.c')
| -rw-r--r-- | arch/arm/mm/flush.c | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c index 34b66af516ea..d0ba3551d49a 100644 --- a/arch/arm/mm/flush.c +++ b/arch/arm/mm/flush.c @@ -21,6 +21,21 @@ #include "mm.h" +#ifdef CONFIG_ARM_HEAVY_MB +void (*soc_mb)(void); + +void arm_heavy_mb(void) +{ +#ifdef CONFIG_OUTER_CACHE_SYNC + if (outer_cache.sync) + outer_cache.sync(); +#endif + if (soc_mb) + soc_mb(); +} +EXPORT_SYMBOL(arm_heavy_mb); +#endif + #ifdef CONFIG_CPU_CACHE_VIPT static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr) @@ -315,7 +330,7 @@ void flush_dcache_page(struct page *page) mapping = page_mapping(page); if (!cache_ops_need_broadcast() && - mapping && !page_mapped(page)) + mapping && !page_mapcount(page)) clear_bit(PG_dcache_clean, &page->flags); else { __flush_dcache_page(mapping, page); @@ -400,18 +415,3 @@ void __flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned l */ __cpuc_flush_dcache_area(page_address(page), PAGE_SIZE); } - -#ifdef CONFIG_TRANSPARENT_HUGEPAGE -#ifdef CONFIG_HAVE_RCU_TABLE_FREE -void pmdp_splitting_flush(struct vm_area_struct *vma, unsigned long address, - pmd_t *pmdp) -{ - pmd_t pmd = pmd_mksplitting(*pmdp); - VM_BUG_ON(address & ~PMD_MASK); - set_pmd_at(vma->vm_mm, address, pmdp, pmd); - - /* dummy IPI to serialise against fast_gup */ - kick_all_cpus_sync(); -} -#endif /* CONFIG_HAVE_RCU_TABLE_FREE */ -#endif /* CONFIG_TRANSPARENT_HUGEPAGE */ |