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cgroup/cpuset: Remove cpuset_slab_spread_rotor 

JIRA: https://issues.redhat.com/browse/RHEL-80382

commit c149c4a48b19afbf0c383614e57b452d39b154de
Author: Xiu Jianfeng <xiujianfeng@huawei.com>
Date:   Sat Jul 13 08:59:16 2024 +0000

    cgroup/cpuset: Remove cpuset_slab_spread_rotor

    Since the SLAB implementation was removed in v6.8, so the
    cpuset_slab_spread_rotor is no longer used and can be removed.

    Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
    Reviewed-by: Waiman Long <longman@redhat.com>
    Signed-off-by: Tejun Heo <tj@kernel.org>

Signed-off-by: Radostin Stoyanov <rstoyano@redhat.com>
This commit is contained in:
Radostin Stoyanov 2025-03-27 12:21:18 +00:00
parent 6d25e55fb0
commit 702a637010
4 changed files with 0 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/linux/cpuset.h
View File

@ -113,7 +113,6 @@ extern int proc_cpuset_show(struct seq_file *m, struct pid_namespace *ns,
struct pid *pid, struct task_struct *tsk);
extern int cpuset_mem_spread_node(void);
extern int cpuset_slab_spread_node(void);
static inline int cpuset_do_page_mem_spread(void)
{
@ -251,11 +250,6 @@ static inline int cpuset_mem_spread_node(void)
return 0;
}
static inline int cpuset_slab_spread_node(void)
{
return 0;
}
static inline int cpuset_do_page_mem_spread(void)
{
return 0;

1
include/linux/sched.h
View File

@ -1244,7 +1244,6 @@ struct task_struct {
/* Sequence number to catch updates: */
seqcount_spinlock_t mems_allowed_seq;
int cpuset_mem_spread_rotor;
int cpuset_slab_spread_rotor;
#endif
#ifdef CONFIG_CGROUPS
/* Control Group info protected by css_set_lock: */

13
kernel/cgroup/cpuset.c
View File

@ -5079,19 +5079,6 @@ int cpuset_mem_spread_node(void)
return cpuset_spread_node(&current->cpuset_mem_spread_rotor);
}
/**
* cpuset_slab_spread_node() - On which node to begin search for a slab page
*/
int cpuset_slab_spread_node(void)
{
if (current->cpuset_slab_spread_rotor == NUMA_NO_NODE)
current->cpuset_slab_spread_rotor =
node_random(&current->mems_allowed);
return cpuset_spread_node(&current->cpuset_slab_spread_rotor);
}
EXPORT_SYMBOL_GPL(cpuset_mem_spread_node);
/**
* cpuset_mems_allowed_intersects - Does @tsk1's mems_allowed intersect @tsk2's?
* @tsk1: pointer to task_struct of some task.

1
kernel/fork.c
View File

@ -2377,7 +2377,6 @@ static __latent_entropy struct task_struct *copy_process(
#endif
#ifdef CONFIG_CPUSETS
p->cpuset_mem_spread_rotor = NUMA_NO_NODE;
p->cpuset_slab_spread_rotor = NUMA_NO_NODE;
seqcount_spinlock_init(&p->mems_allowed_seq, &p->alloc_lock);
#endif
#ifdef CONFIG_TRACE_IRQFLAGS