v3: - Optimize __down_read_trylock() for the uncontended case as suggested by Linus. v2: - Add patch 2 to optimize __down_read_trylock() as suggested by PeterZ. - Update performance test data in patch 1. This is part 0 of my rwsem patchset. It just removes the architecture specific files to make it easer to add enhancements in the upcoming rwsem patches. Since the two ll/sc platforms that I can tested on (arm64 & ppc) are both using the generic C codes, the rwsem performance shouldn't be affected by this patch except the down_read_trylock() code which was included in patch 2 for arm64. Waiman Long (2): locking/rwsem: Remove arch specific rwsem files locking/rwsem: Optimize down_read_trylock() MAINTAINERS | 1 - arch/alpha/include/asm/rwsem.h | 211 ----------------------------------- arch/arm/include/asm/Kbuild | 1 - arch/arm64/include/asm/Kbuild | 1 - arch/hexagon/include/asm/Kbuild | 1 - arch/ia64/include/asm/rwsem.h | 172 ----------------------------- arch/powerpc/include/asm/Kbuild | 1 - arch/s390/include/asm/Kbuild | 1 - arch/sh/include/asm/Kbuild | 1 - arch/sparc/include/asm/Kbuild | 1 - arch/x86/include/asm/rwsem.h | 237 ---------------------------------------- arch/x86/lib/Makefile | 1 - arch/x86/lib/rwsem.S | 156 -------------------------- arch/xtensa/include/asm/Kbuild | 1 - include/asm-generic/rwsem.h | 140 ------------------------ include/linux/rwsem.h | 4 +- kernel/locking/percpu-rwsem.c | 2 + kernel/locking/rwsem.h | 133 ++++++++++++++++++++++ 18 files changed, 136 insertions(+), 929 deletions(-) delete mode 100644 arch/alpha/include/asm/rwsem.h delete mode 100644 arch/ia64/include/asm/rwsem.h delete mode 100644 arch/x86/include/asm/rwsem.h delete mode 100644 arch/x86/lib/rwsem.S delete mode 100644 include/asm-generic/rwsem.h -- 1.8.3.1
