Hi,
Please find the upcoming changes in SRCU for v6.15. The changes can also be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux.git srcu.2025.02.05a
Regards, Boqun
Paul E. McKenney (20): srcu: Make Tiny SRCU able to operate in preemptible kernels srcu: Define SRCU_READ_FLAVOR_ALL in terms of symbols srcu: Use ->srcu_gp_seq for rcutorture reader batch srcu: Pull ->srcu_{un,}lock_count into a new srcu_ctr structure srcu: Make SRCU readers use ->srcu_ctrs for counter selection srcu: Make Tree SRCU updates independent of ->srcu_idx srcu: Force synchronization for srcu_get_delay() srcu: Rename srcu_check_read_flavor_lite() to srcu_check_read_flavor_force() srcu: Add SRCU_READ_FLAVOR_SLOWGP to flag need for synchronize_rcu() srcu: Pull pointer-to-integer conversion into __srcu_ptr_to_ctr() srcu: Pull integer-to-pointer conversion into __srcu_ctr_to_ptr() srcu: Move SRCU Tree/Tiny definitions from srcu.h srcu: Add SRCU-fast readers rcutorture: Add ability to test srcu_read_{,un}lock_fast() refscale: Add srcu_read_lock_fast() support using "srcu-fast" rcutorture: Make scenario SRCU-P use srcu_read_lock_fast() srcu: Fix srcu_read_unlock_{lite,nmisafe}() kernel-doc srcu: Document that srcu_{read_lock,down_read}() can share srcu_struct srcu: Add srcu_down_read_fast() and srcu_up_read_fast() srcu: Make SRCU-fast also be NMI-safe
include/linux/srcu.h | 102 +++++++-- include/linux/srcutiny.h | 27 ++- include/linux/srcutree.h | 98 +++++++-- kernel/rcu/rcu.h | 9 +- kernel/rcu/rcutorture.c | 11 + kernel/rcu/refscale.c | 32 ++- kernel/rcu/srcutiny.c | 6 + kernel/rcu/srcutree.c | 199 +++++++++--------- .../rcutorture/configs/rcu/SRCU-P.boot | 1 + 9 files changed, 359 insertions(+), 126 deletions(-)