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Wysocki" , Peter Zijlstra , Oleg Nesterov , David Hildenbrand , Michal Hocko , Jonathan Corbet Cc: Ingo Molnar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , len brown , pavel machek , Kees Cook , Andrew Morton , Lorenzo Stoakes , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Catalin Marinas , Nico Pache , xu xin , wangfushuai , Andrii Nakryiko , Christian Brauner , Thomas Gleixner , Jeff Layton , Al Viro , Adrian Ratiu , linux-pm@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Zihuan Zhang Subject: [RFC PATCH v1 4/9] freezer: Set default freeze priority for userspace tasks Date: Thu, 7 Aug 2025 20:14:13 +0800 Message-Id: <20250807121418.139765-5-zhangzihuan@kylinos.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250807121418.139765-1-zhangzihuan@kylinos.cn> References: <20250807121418.139765-1-zhangzihuan@kylinos.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 8406E40007 X-Stat-Signature: uxae76qm9ynaimsdw3fgoj9ccp64zeoy X-Rspam-User: X-HE-Tag: 1754568897-235651 X-HE-Meta: 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 cdJuhFAe ahS0xXlOpgNHtw4vuSrlw8Omarys2dALMU/S62jyXdme5XSG6+GxPzBW9JCsJVHFaaunsSX1vDv7fVDlmWdjOmw70Bg== 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: The freezer framework now supports per-task freeze priorities. To ensure consistent behavior, this patch assigns a default freeze priority (FREEZE_PRIORITY_NORMAL) to all newly created userspace tasks. This helps maintain deterministic freezing order and prepares the ground for future enhancements based on priority-aware freezing logic. Kernel threads are not affected by this change, since they are excluded. Signed-off-by: Zihuan Zhang --- kernel/fork.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/fork.c b/kernel/fork.c index 9ce93fd20f82..04af5390af25 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2422,6 +2422,7 @@ __latent_entropy struct task_struct *copy_process( =20 copy_oom_score_adj(clone_flags, p); =20 + freeze_set_default_priority(p, FREEZE_PRIORITY_NORMAL); return p; =20 bad_fork_core_free: --=20 2.25.1