Re: [PATCH] powerpc: thp: Add write barrier after updating the valid bit
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2014-07-29 07:00:54
On Tue, 2014-07-29 at 12:25 +0530, Aneesh Kumar K.V wrote:
We want to make sure for usage like below we don't reorder the load.
if (pmd_trans_huge(*pmdp)){
get_hpte_slot_array(pmdp)
}Shouldn't we also make sure that we don't have lock set ? (In case it's in the middle of being updated). Cheers, Ben.