Commit f7ce644b authored by Zhang Yanmin's avatar Zhang Yanmin Committed by Adrian Bunk

[IA64] lazy_mmu_prot_update needs to be aware of huge pages

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: default avatarZhang Yanmin <yanmin.zhang@intel.com>
Acked-by: default avatarKen Chen <kenneth.w.chen@intel.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
Signed-off-by: default avatarAdrian Bunk <bunk@kernel.org>
parent d289a630
......@@ -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 */
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment