Steve Capper bd951303be arm: mm: introduce special ptes for LPAE ... We need a mechanism to tag ptes as being special, this indicates that no attempt should be made to access the underlying struct page * associated with the pte. This is used by the fast_gup when operating on ptes as it has no means to access VMAs (that also contain this information) locklessly. The L_PTE_SPECIAL bit is already allocated for LPAE, this patch modifies pte_special and pte_mkspecial to make use of it, and defines __HAVE_ARCH_PTE_SPECIAL. This patch also excludes special ptes from the icache/dcache sync logic. Signed-off-by: Steve Capper <steve.capper@linaro.org> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Dann Frazier <dann.frazier@canonical.com> Cc: Hugh Dickins <hughd@google.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Will Deacon <will.deacon@arm.com> Cc: Christoffer Dall <christoffer.dall@linaro.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-10-09 22:26:00 -04:00
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asm	arm: mm: introduce special ptes for LPAE	2014-10-09 22:26:00 -04:00
debug	Merge tag 'bcm63138-v4' of http://github.com/brcm/linux into next/soc	2014-09-25 23:50:02 +02:00
uapi/asm	arm/arm64: KVM: vgic: make number of irqs a configurable attribute	2014-09-18 18:48:58 -07:00