diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2009-02-12 20:16:09 (GMT) |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2009-02-12 22:11:58 (GMT) |
commit | 7ad9de6ac83bd825996d2de98c92e0f425c31050 (patch) | |
tree | 7a4fb15f5b3995a731099b9b110e197da339d022 /arch/x86 | |
parent | 34b0900d323122113683685b200aae9f9b75e63b (diff) | |
download | linux-fsl-qoriq-7ad9de6ac83bd825996d2de98c92e0f425c31050.tar.xz |
x86: CPA avoid repeated lazy mmu flush
Impact: Flush the lazy MMU only once
Pending mmu updates only need to be flushed once to bring the
in-memory pagetable state up to date.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86')
-rw-r--r-- | arch/x86/mm/pageattr.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index f664bc1..8ca0d85 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -575,14 +575,6 @@ static int __change_page_attr(struct cpa_data *cpa, int primary) address = cpa->vaddr[cpa->curpage]; else address = *cpa->vaddr; - - /* - * If we're called with lazy mmu updates enabled, the - * in-memory pte state may be stale. Flush pending updates to - * bring them up to date. - */ - arch_flush_lazy_mmu_mode(); - repeat: kpte = lookup_address(address, &level); if (!kpte) @@ -819,6 +811,13 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages, vm_unmap_aliases(); + /* + * If we're called with lazy mmu updates enabled, the + * in-memory pte state may be stale. Flush pending updates to + * bring them up to date. + */ + arch_flush_lazy_mmu_mode(); + cpa.vaddr = addr; cpa.numpages = numpages; cpa.mask_set = mask_set; |