diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2021-08-15 23:29:22 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2021-08-17 19:06:04 +0200 |
| commit | 015680aa4c5d784513d0a9728bc52ec7c4a64227 (patch) | |
| tree | 6f5b9ad1845d01293a6780e7fcfef57487a7d3ab /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | locking/rtmutex: Prevent lockdep false positive with PI futexes (diff) | |
| download | linux-dev-015680aa4c5d784513d0a9728bc52ec7c4a64227.tar.xz linux-dev-015680aa4c5d784513d0a9728bc52ec7c4a64227.zip | |
preempt: Adjust PREEMPT_LOCK_OFFSET for RT
On PREEMPT_RT regular spinlocks and rwlocks are substituted with rtmutex
based constructs. spin/rwlock held regions are preemptible on PREEMPT_RT,
so PREEMPT_LOCK_OFFSET has to be 0 to make the various cond_resched_*lock()
functions work correctly.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210815211305.804246275@linutronix.de
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions