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Sun, 07 Jul 2024 18:00:22 -0700 (PDT) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a77df3d7cb3sm194480366b.100.2024.07.07.18.00.21 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Sun, 07 Jul 2024 18:00:21 -0700 (PDT) From: Wei Yang To: rppt@kernel.org, akpm@linux-foundation.org, brauner@kernel.org, oleg@redhat.com, mjguzik@gmail.com, tandersen@netflix.com Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Wei Yang Subject: [PATCH v4 3/3] kernel/fork.c: put set_max_threads()/task_struct_whitelist() in __init section Date: Mon, 8 Jul 2024 01:00:10 +0000 Message-Id: <20240708010010.32347-3-richard.weiyang@gmail.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20240708010010.32347-1-richard.weiyang@gmail.com> References: <20240708010010.32347-1-richard.weiyang@gmail.com> X-Stat-Signature: fm6cj1iwcmckof9cuhusu4643qi45o9u X-Rspam-User: X-Rspamd-Queue-Id: 43B2414001F X-Rspamd-Server: rspam02 X-HE-Tag: 1720400424-193740 X-HE-Meta: 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 GQxJfd5E ljyEQ28hor6laeXdvRf6Xel5Ht7y245ur0IOyLKlE2pREWvCpXjFCl285qm6oT9F0RKlca7ZBsNshdnUl8aM8JRbXkMEnuiwA4ciYuIYYhk9OoUoiAPLmvjp192qFxb1cvmwAEH1e2SvIHVuNT75krL9Le25WAFgkzzegDWx4Np18Va+6F6NpiIUXPjtqzXslQi1t50UC0vNmIhmjrroM9V+lQ1z7+8UdOIA5aBiLekW7QDg/zpTu0jpR7EkOVigbYJwOp6/2DoCc+Fd53wzmZjLNNN7RJq9jCkA1VsombS39HT+oePfmCFZ4VMryBvho/+IQ2w/sO++AzOljpppIhJKuM7IevCixzexOXM44HE4KqAoRL2kZRLbMXFURr7MGmvm+8VVaTMRLmio6K107TmDwGbL7iqnA/Q7OQKyBP9pEhkBdzGh+dF9Akt/u9KkbYffkdWECe/5gJ62RJyiDyWsA+7+5kBZF5viAV/rlm46TYeg= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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 Suggested-by: Oleg Nesterov --- kernel/fork.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/fork.c b/kernel/fork.c index e80e889543f3..da0b4545d380 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_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);