Files
linux/kernel
Tomas Glozar 17f89102fe tracing/osnoise: Allow arbitrarily long CPU string
Allocate kernel memory for processing CPU string
(/sys/kernel/tracing/osnoise/cpus) also in osnoise_cpus_write to allow
the writing of a CPU string of an arbitrary length.

This replaces the 256-byte buffer, which is insufficient with the rising
number of CPUs. For example, if I wanted to measure on every even CPU
on a system with 256 CPUs, the string would be 456 characters long.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20250425091839.343289-1-tglozar@redhat.com
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2025-05-08 09:36:09 -04:00
..
2025-02-10 16:56:58 -08:00
2024-11-03 01:28:06 -05:00
2024-11-03 01:28:06 -05:00
2025-02-12 12:12:27 +01:00