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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2013-06-20 14:30:13 +0530
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-06-21 16:01:52 +1000
commitdb3d8534903c8a9617142975bec6db95acaba753 (patch)
treeeea268dcfdd5cce84aa9b32025528dbc2d71d5aa /arch/powerpc/include/asm/pgtable-ppc64-64k.h
parentpowerpc/eeh: Debugfs for error injection (diff)
downloadlinux-dev-db3d8534903c8a9617142975bec6db95acaba753.tar.xz
linux-dev-db3d8534903c8a9617142975bec6db95acaba753.zip
powerpc/mm: handle hugepage size correctly when invalidating hpte entries
If a hash bucket gets full, we "evict" a more/less random entry from it. When we do that we don't invalidate the TLB (hpte_remove) because we assume the old translation is still technically "valid". This implies that when we are invalidating or updating pte, even if HPTE entry is not valid we should do a tlb invalidate. With hugepages, we need to pass the correct actual page size value for tlb invalidation. This change update the patch 0608d692463598c1d6e826d9dd7283381b4f246c "powerpc/mm: Always invalidate tlb on hpte invalidate and update" to handle transparent hugepages correctly. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/pgtable-ppc64-64k.h')
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