Messages in this thread | | | From | Frederic Weisbecker <> | Subject | [PATCH 00/14] lockdep: Add lightweight IRQs disabled/enabled check | Date | Fri, 20 Oct 2017 02:55:57 +0200 |
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Checking whether IRQs are disabled or enabled is often an important sanity check. Now we can be sometimes reluctant to have it on fastpath because reading the flags can be somewhat costly.
As suggested by Peter Zijlstra some time ago, this would be a nice lockdep extension: it's the natural concurrency sanity checker and it already tracks down the irqflags state.
So here it is.
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git lockdep/irq
HEAD: 1cb58314de50c73eaf0b0322615ecb7a8ee39592
Thanks, Frederic ---
Frederic Weisbecker (14): lockdep: Add IRQs disabled/enabled assertion irq: Use lockdep to assert IRQs are disabled/enabled workqueue: Use lockdep to assert IRQs are disabled/enabled nohz: Use lockdep to assert IRQs are disabled/enabled hrtimer: Use lockdep to assert IRQs are disabled/enabled smp: Use lockdep to assert IRQs are disabled/enabled x86: Use lockdep to assert IRQs are disabled/enabled perf: Use lockdep to assert IRQs are disabled/enabled irq/timings: Use lockdep to assert IRQs are disabled/enabled irq_work: Use lockdep to assert IRQs are disabled/enabled sched: Use lockdep to assert IRQs are disabled/enabled posix-cpu-timers: Use lockdep to assert IRQs are disabled/enabled netpoll: Use lockdep to assert IRQs are disabled/enabled rcu: Use lockdep to assert IRQs are disabled/enabled
arch/x86/entry/common.c | 2 +- arch/x86/kernel/smpboot.c | 2 +- include/linux/lockdep.h | 13 +++++++++++++ kernel/events/core.c | 12 ++++++------ kernel/irq/timings.c | 2 +- kernel/irq_work.c | 2 +- kernel/rcu/tree.c | 16 ++++++++-------- kernel/rcu/tree_plugin.h | 10 +++++----- kernel/sched/clock.c | 2 +- kernel/sched/cputime.c | 3 +-- kernel/smp.c | 2 +- kernel/softirq.c | 10 +++++----- kernel/time/hrtimer.c | 4 +--- kernel/time/posix-cpu-timers.c | 6 +++--- kernel/time/tick-sched.c | 5 ++--- kernel/workqueue.c | 2 +- net/core/netpoll.c | 2 +- 17 files changed, 52 insertions(+), 43 deletions(-)
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