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authorWill Deacon <will.deacon@arm.com>2017-07-11 01:50:49 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-11 02:32:34 +0300
commitb6d0f14abb7c1d9d522c064633c820aaeb9bbfbf (patch)
tree8d93ae60d5fced2dfcb0215fde88ff1abefbfd85 /fs/proc/generic.c
parent31b7fb448c2bda757f3386c3eb50c2718bf6d776 (diff)
downloadlinux-b6d0f14abb7c1d9d522c064633c820aaeb9bbfbf.tar.xz
frv: cmpxchg: implement cmpxchg64()
FRV supports 64-bit cmpxchg, which is provided by the arch code as __cmpxchg_64 and subsequently used to implement atomic64_cmpxchg. This patch hooks up the generic cmpxchg64 API using the same function, which also provides default definitions of the relaxed, acquire and release variants. This fixes the build when COMPILE_TEST=y and IOMMU_IO_PGTABLE_LPAE=y. Link: http://lkml.kernel.org/r/1499084670-6996-1-git-send-email-will.deacon@arm.com Signed-off-by: Will Deacon <will.deacon@arm.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc/generic.c')
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