[IA64] lazy_mmu_prot_update needs to be aware of huge pages (5e48521e) · Commits · 戴 / test

Function lazy_mmu_prot_update is also used on huge pages when it is called by set_huge_ptep_writable, but it isn't aware of huge pages. Signed-off-by:

Zhang Yanmin <yanmin.zhang@intel.com> Acked-by:

Ken Chen <kenneth.w.chen@intel.com> Signed-off-by:

Tony Luck <tony.luck@intel.com>

arch/ia64/mm/init.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -109,6 +109,7 @@ lazy_mmu_prot_update (pte_t pte)
		{
		unsigned long addr;
		struct page *page;
		unsigned long order;

		if (!pte_exec(pte))
		return; /* not an executable page... */
		@@ -119,6 +120,11 @@ lazy_mmu_prot_update (pte_t pte)
		if (test_bit(PG_arch_1, &page->flags))
		return; /* i-cache is already coherent with d-cache */

		if (PageCompound(page)) {
		order = (unsigned long) (page[1].lru.prev);
		flush_icache_range(addr, addr + (1UL << order << PAGE_SHIFT));
		}
		else
		flush_icache_range(addr, addr + PAGE_SIZE);
		set_bit(PG_arch_1, &page->flags); /* mark page as clean */
		}

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