From: Zhang, Yanmin <yanmin.zhang@xxxxxxxxx> 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. The patch against 2.6.16-rc4 fixes it. Thank Ken for good suggestions. Signed-off-by: Zhang Yanmin <yanmin.zhang@xxxxxxxxx> --- diff -Nraup linux-2.6.16-rc4/arch/ia64/mm/init.c linux-2.6.16-rc4_lazy_mmu/arch/ia64/mm/init.c --- linux-2.6.16-rc4/arch/ia64/mm/init.c 2006-02-22 19:19:02.000000000 +0800 +++ linux-2.6.16-rc4_lazy_mmu/arch/ia64/mm/init.c 2006-02-23 18:29:00.000000000 +0800 @@ -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... */ @@ -119,7 +120,12 @@ lazy_mmu_prot_update (pte_t pte) if (test_bit(PG_arch_1, &page->flags)) return; /* i-cache is already coherent with d-cache */ - flush_icache_range(addr, addr + PAGE_SIZE); + 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 */ } - : send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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