From: "Michal Koutný" <mkoutny@suse.com>
To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org
Cc: "Steven Rostedt" <rostedt@goodmis.org>,
"Masami Hiramatsu" <mhiramat@kernel.org>,
"Mathieu Desnoyers" <mathieu.desnoyers@efficios.com>,
"Christian Brauner" <brauner@kernel.org>,
"Oleg Nesterov" <oleg@redhat.com>,
"Kent Overstreet" <kent.overstreet@linux.dev>,
"Kees Cook" <keescook@chromium.org>,
"Michal Koutný" <mkoutny@suse.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Tycho Andersen" <tandersen@netflix.com>,
"Jens Axboe" <axboe@kernel.dk>,
"Aleksa Sarai" <cyphar@cyphar.com>
Subject: [PATCH 0/3] kernel/pid: Remove default pid_max value
Date: Mon, 8 Apr 2024 16:58:16 +0200 [thread overview]
Message-ID: <20240408145819.8787-1-mkoutny@suse.com> (raw)
TL;DR excerpt from commit 02/03:
The kernel provides mechanisms, while it should not imply policies --
default pid_max seems to be an example of the policy that does not fit
all. At the same time pid_max must have some value assigned, so use the
end of the allowed range -- pid_max_max.
More details are in that commit's message. The other two commits are
related preparation and less related refresh in code that somewhat
references pid_max.
Michal Koutný (3):
tracing: Remove dependency of saved_cmdlines_buffer on PID_MAX_DEFAULT
kernel/pid: Remove default pid_max value
tracing: Compare pid_max against pid_list capacity
include/linux/pid.h | 4 ++--
include/linux/threads.h | 15 ++++-----------
kernel/pid.c | 8 +++-----
kernel/trace/pid_list.c | 6 +++---
kernel/trace/pid_list.h | 4 ++--
kernel/trace/trace_sched_switch.c | 11 ++++++-----
6 files changed, 20 insertions(+), 28 deletions(-)
base-commit: fec50db7033ea478773b159e0e2efb135270e3b7
--
2.44.0
next reply other threads:[~2024-04-08 14:58 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-08 14:58 Michal Koutný [this message]
2024-04-08 14:58 ` [PATCH 1/3] tracing: Remove dependency of saved_cmdlines_buffer on PID_MAX_DEFAULT Michal Koutný
2024-04-09 15:01 ` Steven Rostedt
2024-05-13 17:30 ` Michal Koutný
2024-04-08 14:58 ` [PATCH 2/3] kernel/pid: Remove default pid_max value Michal Koutný
2024-04-08 20:29 ` Andrew Morton
2024-04-11 15:40 ` Michal Koutný
2024-04-11 22:03 ` Andrew Morton
2024-04-12 14:32 ` Michal Koutný
2024-04-09 0:45 ` kernel test robot
2024-04-09 1:38 ` kernel test robot
2024-05-13 17:26 ` Michal Koutný
2024-04-08 14:58 ` [PATCH 3/3] tracing: Compare pid_max against pid_list capacity Michal Koutný
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