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| author | Guilherme G. Piccoli <[email protected]> | 2022-11-15 17:48:47 -0300 |
|---|---|---|
| committer | Steven Rostedt (Google) <[email protected]> | 2022-12-14 11:16:35 -0500 |
| commit | d0b24b4e91fcb8408c4979888547f86be514e337 (patch) | |
| tree | 94fde9dab3e89b07ae4a9271f2ef74d59a7f7039 /lib/mpi/mpi-sub-ui.c | |
| parent | fb9f5ee9bf5cf7ebc8731a7033e57d98832dc650 (diff) | |
ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY kernels
The function match_records() may take a while due to a large
number of string comparisons, so when in PREEMPT_VOLUNTARY
kernels we could face RCU stalls due to that.
Add a cond_resched() to prevent that.
Link: https://lkml.kernel.org/r/[email protected]
Cc: Mark Rutland <[email protected]>
Suggested-by: Steven Rostedt <[email protected]>
Acked-by: Paul E. McKenney <[email protected]> # from RCU CPU stall warning perspective
Signed-off-by: Guilherme G. Piccoli <[email protected]>
Acked-by: Masami Hiramatsu (Google) <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-sub-ui.c')
0 files changed, 0 insertions, 0 deletions