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[173.79.56.208]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-47e9ebeb870sm16091691cf.5.2025.04.24.13.28.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Apr 2025 13:28:11 -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 16:28:05 -0400 Message-ID: <20250424202806.52632-2-gourry@gourry.net> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250424202806.52632-1-gourry@gourry.net> References: <20250424202806.52632-1-gourry@gourry.net> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: CC92940007 X-Stat-Signature: 5bu5kn598rric9t4ekjrtj6gda6spwr9 X-HE-Tag: 1745526492-920991 X-HE-Meta: U2FsdGVkX19p033M/OTgCqw39U232plxPVio38wS5X/GZiJCJPea182Fraexl2IJXVGo05qTIVQ+3upW7FEomvL0eHH0KCmSwns3/96QzjpuhCmc7mOK6Czce75Xzcm45TAuxmsmVuGmfABC0rJLGaD/+ZCzJsUvfGDd+f+u5DMrHUzWUBsnW0fEB5eprxmaR986puzhpotf5nTwqgeNgKzlsnKCrMuiCB5HlKNApQuLLEyPUE3HOO1/zPpTiH1KgYBFNExLr4VZAQXHKa32lJVhwitTmkaqLL6ElQIAliuxwe/QOfxczKKR/n/gDyV1igpNheF+A8kEDibrHwcJYB9416N3LNtIt5We5m7hGpb6Zi3wSH+PVIAjm0PmL+G51uhJmfu19Lsozw6AfOSst5PLCxtRS5zYJFsQdX7u3mUkF5fN4moo/qAj3ahIXSar+D/1I4JNm44vfWzu8p8XngF0vqZje+CNqC4aVHL70+mZe6uU6gKMjTTYaT9GnzdUju3vunTTF+vIpIBnwikGIk3nw2l6q8YSmQOmtzLRzZMxyLuyNDr4KBQEuGzgX/fvNPJWhYXMYhNyJOPAPNZZspYZ5mmlLIveWYxVVsW/gOrF0BWtSAT4j4sNnBRbyUDvyX6bMYFsRgGYkyJRhYDtzBNs52z6msk6UljMrhQxThkmSXH1PDsZFF/SfHFI+Qs+nJcTQjR5iIzA0kB/Bg/3VHIXjBniVbZdPL0EjIdDb+iCS5ZC556UJWGLfAzQjF1aXPrXNdlEbwZpa/z3+VQRRJg82XgUsEmRF1HZs8dZ0ROc5n4wlOiJ3xri6oP33E8d7YG9JIEwbU7L4EWH45SCBHutp49E8vaHFUqsNe76pURRTKW547w/hAlI1cw9QT2WiOi4H+Xve0P/w6etzxtZrzFNFjxCXzT8iwWmj2X1OnC0K4iGg7qIK7W8kS9tSxrfF2s/pe0gJf5J5ltzEaz hHPBRygz F/ix1jU5jyuu2fjIfB1RQ/bOunpgTSi/czS/tINrpRqrvzTP+fznisAlTVRO9yIzuRsiAZbRUdDdoLk3T9GWmELOzc494WTe7mYpG6Mr/g9NpgG0Jgp1UETJwFrODpJ43crFXxQQsQJV0Ac+svt9OTq3QqZPQKLiD14ypKAYxP22YvVwRfZPhEdjQ9p+kFXg8zUP/9bizFOnT54/f3QkrVxgRkRidxcyIOLKxSzJ6cjZE1DKqnC/V9RcAwlokYLtvo0XTfzCHya9gAUCRBsUgVHY8NBgMB8SNXdEM0NYfxmZ0qAcbn3FVRc8yjVxrhTStDb/dJd1LhqGtUQFeCr2oJ0sv8XI4oDOqMt0RTEqewKKuhHHbLa48h9EptXAr/bZ+FvxFDzxZnTM49AAIL6DJpiRF/Jgqu8jsQTE5TSabNOMdkWjfy4jqlZMq0vbPUmuFlYhsWLMJzefKGA8= 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