Commit 06863d87 authored by Kefeng Wang's avatar Kefeng Wang Committed by Peng Zhang
Browse files

sched/fair: use folio_xchg_last_cpupid() in should_numa_migrate_memory() 

mainline inclusion
from mainline-v6.7-rc1
commit 1b143cc77f2074dd43b610d6bfffc822d20b6e16
category: other
bugzilla: https://gitee.com/openeuler/kernel/issues/I8JQWQ

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1b143cc77f2074dd43b610d6bfffc822d20b6e16

--------------------------------

Convert to use folio_xchg_last_cpupid() in should_numa_migrate_memory().

Link: https://lkml.kernel.org/r/20231018140806.2783514-14-wangkefeng.wang@huawei.com


Signed-off-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarZhangPeng <zhangpeng362@huawei.com>
parent 65d87e5d

kernel/sched/fair.c

+1 −1
Original line number Diff line number Diff line
@@ -1875,7 +1875,7 @@ bool should_numa_migrate_memory(struct task_struct *p, struct folio *folio, 
	}



	this_cpupid = cpu_pid_to_cpupid(dst_cpu, current->pid);

	last_cpupid = page_cpupid_xchg_last(&folio->page, this_cpupid);

	last_cpupid = folio_xchg_last_cpupid(folio, this_cpupid);



	if (!(sysctl_numa_balancing_mode & NUMA_BALANCING_MEMORY_TIERING) &&

	    !node_is_toptier(src_nid) && !cpupid_valid(last_cpupid))