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| author | Valentin Schneider <vschneid@redhat.com> | 2023-07-07 18:21:52 +0100 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2023-08-22 05:13:29 -0400 |
| commit | ca77dd8ce4658d1006d747dd1995ebb9375199c8 (patch) | |
| tree | fe3e688acd19ee93bea4bbf1ea2585c8446dddbb /net/vmw_vsock | |
| parent | fe4fa4ec9b464f5a93b2010247822fdd3a2a2115 (diff) | |
tracing/filters: Optimise scalar vs cpumask filtering when the user mask is a single CPU
Steven noted that when the user-provided cpumask contains a single CPU,
then the filtering function can use a scalar as input instead of a
full-fledged cpumask.
When the mask contains a single CPU, directly re-use the unsigned field
predicate functions. Transform '&' into '==' beforehand.
Link: https://lkml.kernel.org/r/20230707172155.70873-7-vschneid@redhat.com
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Leonardo Bras <leobras@redhat.com>
Cc: Frederic Weisbecker <frederic@kernel.org>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Valentin Schneider <vschneid@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'net/vmw_vsock')
0 files changed, 0 insertions, 0 deletions