Hi, all.
On 2017/10/20 0:53, Will Deacon wrote:
I've not had any more feedback on this and the testing results are very
encouraging so I'd like to merge it for 4.15. However, it might make more
sense for the whole thing to go via -tip instead.
Ingo, Peter: what do you prefer?
Will
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
I am very interested in this change.
Can you share the testing result for me?
Or Test methods, especially test suite and so on.
I would like to further test the performance.
Thanks.
Cheng Jian
