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[IA64] lazy_mmu_prot_update needs to be aware of huge pages

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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>
This commit is contained in:
Zhang, Yanmin 2006-02-23 11:07:20 +08:00 • committed by Tony Luck
parent 64bc0430ee
commit 5e48521e86
1 changed files with 7 additions and 1 deletions
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8
arch/ia64/mm/init.c
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@ -109,6 +109,7 @@ lazy_mmu_prot_update (pte_t pte)
{ {
unsigned long addr; unsigned long addr;
struct page *page; struct page *page;
unsigned long order;
if (!pte_exec(pte)) if (!pte_exec(pte))
return; /* not an executable page... */ return; /* not an executable page... */
@ -119,7 +120,12 @@ lazy_mmu_prot_update (pte_t pte)
if (test_bit(PG_arch_1, &page->flags)) if (test_bit(PG_arch_1, &page->flags))
return; /* i-cache is already coherent with d-cache */ 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 */ set_bit(PG_arch_1, &page->flags); /* mark page as clean */
} }