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McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com, mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org Subject: [PATCH tip/core/rcu 0/17] kfree_rcu updates for v5.9 Message-ID: <20200624201200.GA28901@paulmck-ThinkPad-P72> Reply-To: paulmck@kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! This series contains kfree_rcu() updates. Unless otherwise noted, these are all courtesy of Uladzislau Rezki. 1. Fix a kernel-doc warnings for "count", courtesy of Mauro Carvalho Chehab. 2. rcu/tree: Keep kfree_rcu() awake during lock contention, courtesy of Joel Fernandes. 3. rcu/tree: Skip entry into the page allocator for PREEMPT_RT, courtesy of Joel Fernandes. 4. rcu/tree: Repeat the monitor if any free channel is busy. 5. rcu/tree: Make debug_objects logic independent of rcu_head, courtesy of Joel Fernandes. 6. rcu/tree: Simplify KFREE_BULK_MAX_ENTR macro. 7. rcu/tree: Move kfree_rcu_cpu locking/unlocking to separate functions. 8. rcu/tree: Use static initializer for krc.lock, courtesy of Sebastian Andrzej Siewior. 9. rcu/tree: cache specified number of objects. 10. rcu/tree: Maintain separate array for vmalloc ptrs. 11. rcu/tiny: support vmalloc in tiny-RCU. 12. Rename *_kfree_callback/*_kfree_rcu_offset/kfree_call_*. 13. mm/list_lru.c: Rename kvfree_rcu() to local variant. 14. Introduce 2 arg kvfree_rcu() interface. 15. Support reclaim for head-less object. 16. Introduce single argument kvfree_rcu() interface. 17. lib/test_vmalloc.c: Add test cases for kvfree_rcu(). Thanx, Paul ------------------------------------------------------------------------ Documentation/admin-guide/kernel-parameters.txt | 8 include/linux/rcupdate.h | 61 ++- include/linux/rcutiny.h | 20 - include/linux/rcutree.h | 2 include/trace/events/rcu.h | 8 kernel/rcu/tiny.c | 7 kernel/rcu/tree.c | 443 ++++++++++++++++-------- lib/test_vmalloc.c | 103 +++++ mm/list_lru.c | 6 9 files changed, 481 insertions(+), 177 deletions(-)