[PATCH tip/core/rcu 0/6] kvfree_rcu() updates for v5.12-rc1

[Paul E. McKenney]

Hello!

This series contains kvfree_rcu() updates, most notably surrounding GPF
flags for memory allocation.

1.	kvfree_rcu: Directly allocate page for single-argument case,
	courtesy of "Uladzislau Rezki (Sony)".

2.	kvfree_rcu: Use __GFP_NOMEMALLOC for single-argument kvfree_rcu().

3.	kvfree_rcu: Make krc_this_cpu_unlock() use
	raw_spin_unlock_irqrestore().

4.	kvfree_rcu: Replace __GFP_RETRY_MAYFAIL by __GFP_NORETRY,
	courtesy of "Uladzislau Rezki (Sony)".

5.	kvfree_rcu: Use same set of GFP flags as does single-argument,
	courtesy of "Uladzislau Rezki (Sony)".

6.	Add kfree_rcu() single-argument scale test, courtesy of
	"Uladzislau Rezki (Sony)".

						Thanx, Paul

------------------------------------------------------------------------

 Documentation/admin-guide/kernel-parameters.txt |   12 ++++
 kernel/rcu/rcuscale.c                           |   15 +++++
 kernel/rcu/tree.c                               |   63 ++++++++++++++++--------
 3 files changed, 68 insertions(+), 22 deletions(-)