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[173.79.56.208]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7c958cbfb1bsm129618385a.44.2025.04.24.13.22.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Apr 2025 13:22:12 -0700 (PDT) From: Gregory Price To: linux-mm@kvack.org Cc: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@meta.com, longman@redhat.com, hannes@cmpxchg.org, mhocko@kernel.org, roman.gushchin@linux.dev, shakeel.butt@linux.dev, muchun.song@linux.dev, tj@kernel.org, mkoutny@suse.com, akpm@linux-foundation.org Subject: [PATCH v5 1/2] cpuset: rename cpuset_node_allowed to cpuset_current_node_allowed Date: Thu, 24 Apr 2025 16:22:06 -0400 Message-ID: <20250424202207.50028-2-gourry@gourry.net> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250424202207.50028-1-gourry@gourry.net> References: <20250422012616.1883287-3-gourry@gourry.net> <20250424202207.50028-1-gourry@gourry.net> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 55C9940009 X-Rspam-User: X-Stat-Signature: 5bu5kn598rric9t4ekjrtj6gda6spwr9 X-HE-Tag: 1745526134-101547 X-HE-Meta: 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 j3wtbFp+ Wt1r6WEanvR2ZvTpfjQX1U1+2p38vnMt2Pu9pM2H2nZAGhjpO0p97ti4fuXWCqhOUvFJ79PfdjDSHfmu1ljwpqOcM6Ct3YobncyQQHt/MSuGnrlsmaIDJH0l8zhublQeNZbAIbqRiLXULlvjk0UU19KchBpBZRUJcdxfL2VLlhvSs0Ew8ehtkjT3U/mcYJS3XqmTfPFPq3eDE4PACzblL8grr3C2fk69BMfExHSVvsB2Rrcnk84/qj/yZ0e64ePclOIdLSqheRnPjUoPym9Zebd8UmJsnmQu1Fd6Us/T0AvODIIct2H7VB7M9yeGWjacVfPXps+mJe0Ll7Cdcvf+Mf1cbZ/CyoliPh6rlfqZa9wyes9TR8tmXQxI/9R5vA4CqN0pj2p+EE4O8dbyM0YypZ6tpDzMPLVWJQa/JubiODxv1FhKx6bMaawo4613yFoEJA8aLV3LfEIC+oE4= 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: Rename cpuset_node_allowed to reflect that the function checks the current task's cpuset.mems. This allows us to make a new cpuset_node_allowed function that checks a target cgroup's cpuset.mems. Acked-by: Waiman Long Acked-by: Tejun Heo Acked-by: Johannes Weiner Reviewed-by: Shakeel Butt Signed-off-by: Gregory Price --- include/linux/cpuset.h | 4 ++-- kernel/cgroup/cpuset.c | 4 ++-- mm/page_alloc.c | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h index 835e7b793f6a..893a4c340d48 100644 --- a/include/linux/cpuset.h +++ b/include/linux/cpuset.h @@ -82,11 +82,11 @@ extern nodemask_t cpuset_mems_allowed(struct task_struct *p); void cpuset_init_current_mems_allowed(void); int cpuset_nodemask_valid_mems_allowed(nodemask_t *nodemask); -extern bool cpuset_node_allowed(int node, gfp_t gfp_mask); +extern bool cpuset_current_node_allowed(int node, gfp_t gfp_mask); static inline bool __cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask) { - return cpuset_node_allowed(zone_to_nid(z), gfp_mask); + return cpuset_current_node_allowed(zone_to_nid(z), gfp_mask); } static inline bool cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask) diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index 0f910c828973..f8e6a9b642cb 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -4090,7 +4090,7 @@ static struct cpuset *nearest_hardwall_ancestor(struct cpuset *cs) } /* - * cpuset_node_allowed - Can we allocate on a memory node? + * cpuset_current_node_allowed - Can current task allocate on a memory node? * @node: is this an allowed node? * @gfp_mask: memory allocation flags * @@ -4129,7 +4129,7 @@ static struct cpuset *nearest_hardwall_ancestor(struct cpuset *cs) * GFP_KERNEL - any node in enclosing hardwalled cpuset ok * GFP_USER - only nodes in current tasks mems allowed ok. */ -bool cpuset_node_allowed(int node, gfp_t gfp_mask) +bool cpuset_current_node_allowed(int node, gfp_t gfp_mask) { struct cpuset *cs; /* current cpuset ancestors */ bool allowed; /* is allocation in zone z allowed? */ diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 5079b1b04d49..233ce25f8f3d 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3461,7 +3461,7 @@ get_page_from_freelist(gfp_t gfp_mask, unsigned int order, int alloc_flags, retry: /* * Scan zonelist, looking for a zone with enough free. - * See also cpuset_node_allowed() comment in kernel/cgroup/cpuset.c. + * See also cpuset_current_node_allowed() comment in kernel/cgroup/cpuset.c. */ no_fallback = alloc_flags & ALLOC_NOFRAGMENT; z = ac->preferred_zoneref; @@ -4148,7 +4148,7 @@ gfp_to_alloc_flags(gfp_t gfp_mask, unsigned int order) /* * Ignore cpuset mems for non-blocking __GFP_HIGH (probably * GFP_ATOMIC) rather than fail, see the comment for - * cpuset_node_allowed(). + * cpuset_current_node_allowed(). */ if (alloc_flags & ALLOC_MIN_RESERVE) alloc_flags &= ~ALLOC_CPUSET; -- 2.49.0