Linus pointed out that he was not pleased by the implementation of
faultable syscall tracepoints because it contains conditional locking.
This patch series addresses those concerns.
This is based on commit 06afb0f36106 ("Merge tag 'trace-v6.13' of
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace")
Many thanks to Linus for the analysis and feedback.
Link:
https://lore.kernel.org/lkml/CAHk-=witPrLcu22dZ93VCyRQonS7+-dFYhQbna=kba-taha...@mail.gmail.com/
Signed-off-by: Mathieu Desnoyers <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Michael Jeanson <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: Yonghong Song <[email protected]>
Cc: Paul E. McKenney <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Andrii Nakryiko <[email protected]>
Cc: [email protected]
Cc: Joel Fernandes <[email protected]>
Cc: Jordan Rife <[email protected]>
Cc: [email protected]
Mathieu Desnoyers (5):
tracing: Move it_func[0] comment to the relevant context
tracing: Remove __idx variable from __DO_TRACE
rcupdate_trace: Define rcu_tasks_trace lock guard
tracing: Remove conditional locking from __DO_TRACE()
tracing: Remove cond argument from __DECLARE_TRACE_SYSCALL
include/linux/rcupdate_trace.h | 5 +++
include/linux/tracepoint.h | 70 ++++++++++++----------------------
2 files changed, 29 insertions(+), 46 deletions(-)
--
2.39.5
