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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


             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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