Hello, This is version three of the patches previously posted here:
v1: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-October/534666.html v2: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-October/534981.html Changes since v2 include: * Drop unused cnt argument * Fix typo in UNLOCK Kconfig inlining options * Added Tested-by tags Thanks to all of those who provided review and testing feedback! Will --->8 Will Deacon (5): kernel/locking: Use struct qrwlock instead of struct __qrwlock locking/atomic: Add atomic_cond_read_acquire kernel/locking: Use atomic_cond_read_acquire when spinning in qrwlock arm64: locking: Move rwlock implementation over to qrwlocks kernel/locking: Prevent slowpath writers getting held up by fastpath arch/arm64/Kconfig | 17 ++++ arch/arm64/include/asm/Kbuild | 1 + arch/arm64/include/asm/spinlock.h | 164 +------------------------------- arch/arm64/include/asm/spinlock_types.h | 6 +- include/asm-generic/atomic-long.h | 3 + include/asm-generic/qrwlock.h | 37 ++----- include/asm-generic/qrwlock_types.h | 15 ++- include/linux/atomic.h | 4 + kernel/locking/qrwlock.c | 86 +++-------------- 9 files changed, 61 insertions(+), 272 deletions(-) -- 2.1.4
