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| author | Zhang, Yanmin <yanmin.zhang@intel.com> | 2006-02-23 11:07:20 +0800 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2006-03-27 10:15:41 -0800 |
| commit | 5e48521e869de7d904bb5ffe9739258ffa026927 (patch) | |
| tree | 3827383a0a769cac6386bba65915bd6b54c33766 /arch/ia64/mm | |
| parent | 64bc0430ee78c03c5c4ce549e217bb74bff7ea5d (diff) | |
| download | kernel_samsung_tuna-5e48521e869de7d904bb5ffe9739258ffa026927.zip kernel_samsung_tuna-5e48521e869de7d904bb5ffe9739258ffa026927.tar.gz kernel_samsung_tuna-5e48521e869de7d904bb5ffe9739258ffa026927.tar.bz2 | |
[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: Zhang Yanmin <yanmin.zhang@intel.com>
Acked-by: Ken Chen <kenneth.w.chen@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/mm')
| -rw-r--r-- | arch/ia64/mm/init.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index ff4f31f..6747361 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -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 */ } |