Just a refresh of v3 with one additional debug patch. v3's cover letter is here: https://lore.kernel.org/all/20220713213237.1596225-1-joel@xxxxxxxxxxxxxxxxx/ I just started working on this again while I have some time during paternity leave ;-) So I thought I'll just send it out again. No other changes other than that 1 debug patch I added on the top. Next I am going to go refine the power results as mentioned in Paul's comments on the last cover letter. Joel Fernandes (Google) (5): rcu: Introduce call_rcu_lazy() API implementation rcuscale: Add laziness and kfree tests fs: Move call_rcu() to call_rcu_lazy() in some paths rcutorture: Add test code for call_rcu_lazy() debug: Toggle lazy at runtime and change flush jiffies Vineeth Pillai (1): rcu: shrinker for lazy rcu fs/dcache.c | 4 +- fs/eventpoll.c | 2 +- fs/file_table.c | 2 +- fs/inode.c | 2 +- include/linux/rcu_segcblist.h | 1 + include/linux/rcupdate.h | 6 + include/linux/sched/sysctl.h | 3 + kernel/rcu/Kconfig | 8 + kernel/rcu/rcu.h | 12 + kernel/rcu/rcu_segcblist.c | 15 +- kernel/rcu/rcu_segcblist.h | 20 +- kernel/rcu/rcuscale.c | 74 +++++- kernel/rcu/rcutorture.c | 60 ++++- kernel/rcu/tree.c | 131 ++++++---- kernel/rcu/tree.h | 10 +- kernel/rcu/tree_nocb.h | 246 +++++++++++++++--- kernel/sysctl.c | 17 ++ .../selftests/rcutorture/configs/rcu/CFLIST | 1 + .../selftests/rcutorture/configs/rcu/TREE11 | 18 ++ .../rcutorture/configs/rcu/TREE11.boot | 8 + 20 files changed, 536 insertions(+), 104 deletions(-) create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/TREE11 create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/TREE11.boot -- 2.37.1.559.g78731f0fdb-goog
