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authorMark Rutland <mark.rutland@arm.com>2018-06-21 15:13:16 +0300
committerIngo Molnar <mingo@kernel.org>2018-06-21 15:25:24 +0300
commit2b523f170e399b0e1c8eec2c4b5889735b0d2b9b (patch)
treebcc61f815e7db246eab1c5283d463bb30a66afa2 /include/linux/atomic.h
parent4f44b4b2b337e100ae655d03c42d140816c8caf9 (diff)
downloadlinux-2b523f170e399b0e1c8eec2c4b5889735b0d2b9b.tar.xz
atomics/riscv: Define atomic64_fetch_add_unless()
As a step towards unifying the atomic/atomic64/atomic_long APIs, this patch converts the arch/riscv implementation of atomic64_add_unless() into an implementation of atomic64_fetch_add_unless(). A wrapper in <linux/atomic.h> will build atomic_add_unless() atop of this, provided it is given a preprocessor definition. No functional change is intended as a result of this patch. Acked-by Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Albert Ou <albert@sifive.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/lkml/20180621121321.4761-14-mark.rutland@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/atomic.h')
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