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authorIngo Molnar <mingo@kernel.org>2018-10-02 10:21:32 +0200
committerIngo Molnar <mingo@kernel.org>2018-10-02 10:21:32 +0200
commitd0346559a7c358a5328e1fa43135acc548c0f224 (patch)
tree831881279f8b812d03609c2e7559f451a0902642 /tools/memory-model/linux-kernel.cat
parent291d0e5d81e101392379217b06251fe8c27f1f80 (diff)
parentb56ada120921fbb0a4fb2a5bee163717182e7e9e (diff)
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull v4.20 RCU changes from Paul E. McKenney: - Documentation updates, including some good-eye catches from Joel Fernandes. - SRCU updates, most notably changes enabling call_srcu() to be invoked very early in the boot sequence. - Torture-test updates, including some preliminary work towards making rcutorture better able to find problems that result in insufficient grace-period forward progress. - Consolidate the RCU-bh, RCU-preempt, and RCU-sched flavors into a single flavor similar to RCU-sched in !PREEMPT kernels and into a single flavor similar to RCU-preempt (but also waiting on preempt-disabled sequences of code) in PREEMPT kernels. This branch also includes a refactoring of rcu_{nmi,irq}_{enter,exit}() from Byungchul Park. - Now that there is only one RCU flavor in any given running kernel, the many "rsp" pointers are no longer required, and this cleanup series removes them. - This branch carries out additional cleanups made possible by the RCU flavor consolidation, including inlining how-trivial functions, updating comments and definitions, and removing now-unneeded rcutorture scenarios. - Initial changes to RCU to better promote forward progress of grace periods, including fixing a bug found by Marius Hillenbrand and David Woodhouse, with the fix suggested by Peter Zijlstra. - Now that there is only one flavor of RCU in any running kernel, there is also only on rcu_data structure per CPU. This means that the rcu_dynticks structure can be merged into the rcu_data structure, a task taken on by this branch. This branch also contains a -rt-related fix from Mike Galbraith. Signed-off-by: Ingo Molnar <mingo@kernel.org>
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