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| author | Paul E. McKenney <paulmck@kernel.org> | 2024-05-01 16:12:37 -0700 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-05-13 19:36:40 -0400 |
| commit | 33f137143e651321f10eb67ae6404a13bfbf69f8 (patch) | |
| tree | 19bacae637427dfb39f9613428882f8aa554fe6a /block/genhd.c | |
| parent | c5963a0990d1da70d1bd399e6811887ff2231b0d (diff) | |
ftrace: Use asynchronous grace period for register_ftrace_direct()
When running heavy test workloads with KASAN enabled, RCU Tasks grace
periods can extend for many tens of seconds, significantly slowing
trace registration. Therefore, make the registration-side RCU Tasks
grace period be asynchronous via call_rcu_tasks().
Link: https://lore.kernel.org/linux-trace-kernel/ac05be77-2972-475b-9b57-56bef15aa00a@paulmck-laptop
Reported-by: Jakub Kicinski <kuba@kernel.org>
Reported-by: Alexei Starovoitov <ast@kernel.org>
Reported-by: Chris Mason <clm@fb.com>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'block/genhd.c')
0 files changed, 0 insertions, 0 deletions