linux-kernel - [PATCH v5 3/3] kernel/fork.c: put set_max_threads()/task_struct_whitelist() in _

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Message-Id: <20240709023609.21332-3-richard.weiyang@gmail.com>
Date: Tue,  9 Jul 2024 02:36:09 +0000
From: Wei Yang <richard.weiyang@...il.com>
To: rppt@...nel.org,
	akpm@...ux-foundation.org,
	brauner@...nel.org,
	oleg@...hat.com,
	tandersen@...flix.com,
	mjguzik@...il.com
Cc: linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Wei Yang <richard.weiyang@...il.com>
Subject: [PATCH v5 3/3] kernel/fork.c: put set_max_threads()/task_struct_whitelist() in __init section

Function set_max_threads()/task_struct_whitelist() is only used by
fork_init() during bootup.

Let's add __init tag to them.

Signed-off-by: Wei Yang <richard.weiyang@...il.com>
Suggested-by: Oleg Nesterov <oleg@...hat.com>
---
 kernel/fork.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index d6c2a4ccd532..8d37c046dfeb 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -997,7 +997,7 @@ void __init __weak arch_task_cache_init(void) { }
 /*
  * set_max_threads
  */
-static void set_max_threads(unsigned int max_threads_suggested)
+static void __init set_max_threads(unsigned int max_threads_suggested)
 {
 	u64 threads;
 	unsigned long nr_pages = memblock_estimated_nr_free_pages();
@@ -1023,7 +1023,7 @@ static void set_max_threads(unsigned int max_threads_suggested)
 int arch_task_struct_size __read_mostly;
 #endif
 
-static void task_struct_whitelist(unsigned long *offset, unsigned long *size)
+static void __init task_struct_whitelist(unsigned long *offset, unsigned long *size)
 {
 	/* Fetch thread_struct whitelist for the architecture. */
 	arch_thread_struct_whitelist(offset, size);
-- 
2.34.1