Thread (15 messages) 15 messages, 4 authors, 2021-10-22
STALE1705d

[PATCH v5 03/15] sched.h: introduce TASK_COMM_LEN_16

From: Yafang Shao <hidden>
Date: 2021-10-21 03:45:36
Also in: linux-fsdevel, linux-perf-users, lkml, netdev
Subsystem: scheduler, the rest · Maintainers: Ingo Molnar, Peter Zijlstra, Juri Lelli, Vincent Guittot, Linus Torvalds

There're many hard-coded 16 used to store task comm in the kernel, that
makes it error prone if we want to change the value of TASK_COMM_LEN. A
new marco TASK_COMM_LEN_16 is introduced to replace these old ones, then
we can easily grep them.

Signed-off-by: Yafang Shao <redacted>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Kees Cook <redacted>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Petr Mladek <pmladek@suse.com>
---
 include/linux/sched.h | 2 ++
 1 file changed, 2 insertions(+)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index c1a927ddec64..62d5b30d310c 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -274,6 +274,8 @@ struct task_group;
 
 #define get_current_state()	READ_ONCE(current->__state)
 
+/* To replace the old hard-coded 16 */
+#define TASK_COMM_LEN_16		16
 /* Task command name length: */
 #define TASK_COMM_LEN			16
 
-- 
2.17.1
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