On 1/14/22 19:59, Jaegeuk Kim wrote:
Per discussion [1], can we merge these patches in 5.10 first? [1] https://lore.kernel.org/linux-f2fs-devel/CAEe=Sx=6FCvrp_6x2Bqp3YTzep2s=aWdCmP29g7+sGCWkpNvkg@xxxxxxxxxxxxxx/T/#t Peter Zijlstra (3): locking/rwsem: Better collate rwsem_read_trylock() locking/rwsem: Introduce rwsem_write_trylock() locking/rwsem: Fold __down_{read,write}*() Waiman Long (4): locking/rwsem: Pass the current atomic count to rwsem_down_read_slowpath() locking/rwsem: Prevent potential lock starvation locking/rwsem: Enable reader optimistic lock stealing locking/rwsem: Remove reader optimistic spinning kernel/locking/lock_events_list.h | 6 +- kernel/locking/rwsem.c | 359 +++++++++--------------------- 2 files changed, 106 insertions(+), 259 deletions(-)
Have you actually tested it in your testing environment to verify that these patches can address the problem? I suspect they will help, but it will be nice if you also include your test results.
Cheers, Longman
