[PATCH v5 1/2] cpuset: rename cpuset_node_allowed to cpuset_current_node_allowed
From: Gregory Price
Date: Thu Apr 24 2025 - 16:28:37 EST
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 <longman@xxxxxxxxxx>
Acked-by: Tejun Heo <tj@xxxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Reviewed-by: Shakeel Butt <shakeel.butt@xxxxxxxxx>
Signed-off-by: Gregory Price <gourry@xxxxxxxxxx>
---
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