Merge branches 'doc.2019.12.10a', 'exp.2019.12.09a', 'fixes.2020.01.24a',... (0e247386) · Commits · 戴 / test

.mailmap

+4 −0

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		@@ -207,6 +207,10 @@ Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
		Patrick Mochel <mochel@digitalimplant.org>
		Paul Burton <paulburton@kernel.org> <paul.burton@imgtec.com>
		Paul Burton <paulburton@kernel.org> <paul.burton@mips.com>
		Paul E. McKenney <paulmck@kernel.org> <paulmck@linux.ibm.com>
		Paul E. McKenney <paulmck@kernel.org> <paulmck@linux.vnet.ibm.com>
		Paul E. McKenney <paulmck@kernel.org> <paul.mckenney@linaro.org>
		Paul E. McKenney <paulmck@kernel.org> <paulmck@us.ibm.com>
		Peter A Jonsson <pj@ludd.ltu.se>
		Peter Oruba <peter@oruba.de>
		Peter Oruba <peter.oruba@amd.com>

+3 −8

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		@@ -225,18 +225,13 @@ an estimate of the total number of RCU callbacks queued across all CPUs
		In kernels with CONFIG_RCU_FAST_NO_HZ, more information is printed
		for each CPU:

		0: (64628 ticks this GP) idle=dd5/3fffffffffffffff/0 softirq=82/543 last_accelerate: a345/d342 Nonlazy posted: ..D
		0: (64628 ticks this GP) idle=dd5/3fffffffffffffff/0 softirq=82/543 last_accelerate: a345/d342 dyntick_enabled: 1

		The "last_accelerate:" prints the low-order 16 bits (in hex) of the
		jiffies counter when this CPU last invoked rcu_try_advance_all_cbs()
		from rcu_needs_cpu() or last invoked rcu_accelerate_cbs() from
		rcu_prepare_for_idle(). The "Nonlazy posted:" indicates lazy-callback
		status, so that an "l" indicates that all callbacks were lazy at the start
		of the last idle period and an "L" indicates that there are currently
		no non-lazy callbacks (in both cases, "." is printed otherwise, as
		shown above) and "D" indicates that dyntick-idle processing is enabled
		("." is printed otherwise, for example, if disabled via the "nohz="
		kernel boot parameter).
		rcu_prepare_for_idle(). "dyntick_enabled: 1" indicates that dyntick-idle
		processing is enabled.

		If the grace period ends just as the stall warning starts printing,
		there will be a spurious stall-warning message, which will include

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		@@ -3978,6 +3978,19 @@
		test until boot completes in order to avoid
		interference.

		rcuperf.kfree_rcu_test= [KNL]
		Set to measure performance of kfree_rcu() flooding.

		rcuperf.kfree_nthreads= [KNL]
		The number of threads running loops of kfree_rcu().

		rcuperf.kfree_alloc_num= [KNL]
		Number of allocations and frees done in an iteration.

		rcuperf.kfree_loops= [KNL]
		Number of loops doing rcuperf.kfree_alloc_num number
		of allocations and frees.

		rcuperf.nreaders= [KNL]
		Set number of RCU readers. The value -1 selects
		N, where N is the number of CPUs. A value

+0 −2

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		@@ -18,8 +18,6 @@
		* mb() prevents loads and stores being reordered across this point.
		* rmb() prevents loads being reordered across this point.
		* wmb() prevents stores being reordered across this point.
		* read_barrier_depends() prevents data-dependent loads being reordered
		* across this point (nop on PPC).
		*
		* *mb() variants without smp_ prefix must order all types of memory
		* operations with one another. sync is the only instruction sufficient

+2 −2

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		@@ -281,7 +281,7 @@ void mt76_rx_aggr_stop(struct mt76_dev dev, struct mt76_wcid wcid, u8 tidno)
		{
		struct mt76_rx_tid *tid = NULL;

		rcu_swap_protected(wcid->aggr[tidno], tid,
		tid = rcu_replace_pointer(wcid->aggr[tidno], tid,
		lockdep_is_held(&dev->mutex));
		if (tid) {
		mt76_rx_aggr_shutdown(dev, tid);