The patch titled
Subject: kernel/fork.c: put set_max_threads()/task_struct_whitelist() in __init section
has been added to the -mm mm-unstable branch. Its filename is
kernel-forkc-put-set_max_threads-task_struct_whitelist-in-__init-section.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/kernel-forkc-put-set_max_threads-task_struct_whitelist-in-__init-section.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Wei Yang <richard.weiyang@xxxxxxxxx>
Subject: kernel/fork.c: put set_max_threads()/task_struct_whitelist() in __init section
Date: Mon, 1 Jul 2024 01:34:10 +0000
The functions set_max_threads() and task_struct_whitelist() are only used
by fork_init() during bootup.
Let's add __init tag to them.
Link: https://lkml.kernel.org/r/20240701013410.17260-2-richard.weiyang@xxxxxxxxx
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
Suggested-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Mike Rapoport (IBM) <rppt@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/fork.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/kernel/fork.c~kernel-forkc-put-set_max_threads-task_struct_whitelist-in-__init-section
+++ a/kernel/fork.c
@@ -997,7 +997,7 @@ void __init __weak arch_task_cache_init(
/*
* 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 = PHYS_PFN(memblock_phys_mem_size() - memblock_reserved_size());
@@ -1023,7 +1023,7 @@ static void set_max_threads(unsigned int
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);
_
Patches currently in -mm which might be from richard.weiyang@xxxxxxxxx are
kernel-forkc-get-totalram_pages-from-memblock-to-calculate-max_threads.patch
kernel-forkc-put-set_max_threads-task_struct_whitelist-in-__init-section.patch
