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OpenCloudOS-Kernel
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x86: remove cpa warning 

this race is legit and can happen on SMP systems.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Ingo Molnar 2008-02-04 16:48:08 +01:00
parent bde1965ce8
commit 6ce9fc17d9
1 changed files with 1 additions and 3 deletions
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4
arch/x86/mm/pageattr.c
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@ -356,10 +356,8 @@ static int split_large_page(pte_t *kpte, unsigned long address)
* up for us already: * up for us already:
*/ */
tmp = lookup_address(address, &level); tmp = lookup_address(address, &level);
if (tmp != kpte) { if (tmp != kpte)
WARN_ON_ONCE(1);
goto out_unlock; goto out_unlock;
}
address = __pa(address); address = __pa(address);
addr = address & PMD_PAGE_MASK; addr = address & PMD_PAGE_MASK;