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Tue, 02 Jul 2024 17:52:12 -0700 (PDT) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a72aaf1bc8esm464287666b.35.2024.07.02.17.52.11 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 02 Jul 2024 17:52:12 -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, david@redhat.com, Wei Yang Subject: [PATCH v3 3/3] kernel/fork.c: put set_max_threads()/task_struct_whitelist() in __init section Date: Wed, 3 Jul 2024 00:51:51 +0000 Message-Id: <20240703005151.28712-3-richard.weiyang@gmail.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20240703005151.28712-1-richard.weiyang@gmail.com> References: <20240703005151.28712-1-richard.weiyang@gmail.com> X-Rspamd-Queue-Id: 1EB4FC0007 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: 71e1pyfdj9zeieg5rtozoxo1wobgewts X-HE-Tag: 1719967933-485333 X-HE-Meta: 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 HjQEihi4 KnZ7+6sQ/UHIoA4ia0S8t1ANifEFP/pyjVj8V0eHfnGaxJh9sxt1FsakSLzn3hdsy26uRpuoCKwj3Fih261WTulQEA5sgbpWFNF2Rkwi3fQbWuf3NWmRpcgRv/vqztkX36SaXLb1TYUFAUjmlraufEh8+LbtqW3WGNKIJFEZV6qkmru8Xx4GAxkVYWwwTuyTrCghiWx3xjBcaN1MrhnSwf6qSGV0U2TZnkKiCoyZuaQTfZSOFnttSvO+jxyYINmQdwvTHUL5Xjlk7kTbHLq004v3IR9eY54/An6ZemLaC2UYm5ccccEXAo+3XWeGtEn0MOqz/Ji66yoaknjpMAjzFPDVLCRuOMIIeAdDGawQUgUV+Cw7njChljt+z0YWqohS51tzJhrDXqUe4NbtTPBdne0mT/UU0HQhEKbIIRgF1yfZo3ZsQbXEgdxa5d+kzjuuqHWscSCYOGrPd6qc1r3IcGwQylbA8zdP8Gj5mJsLQ+i3vQtE= 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);