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mm: migrate: use folio_xchg_last_cpupid() in folio_migrate_flags() 

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

commit 4e694fe4d2fa3031392bdbeaa88066f67c886a0c
Author: Kefeng Wang <wangkefeng.wang@huawei.com>
Date:   Wed Oct 18 22:08:01 2023 +0800

    mm: migrate: use folio_xchg_last_cpupid() in folio_migrate_flags()

    Convert to use folio_xchg_last_cpupid() in folio_migrate_flags(), also
    directly use folio_nid() instead of page_to_nid(&folio->page).

    Link: https://lkml.kernel.org/r/20231018140806.2783514-15-wangkefeng.wang@huawei.com
    Signed-off-by: Kefeng 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: Andrew Morton <akpm@linux-foundation.org>

Signed-off-by: Radostin Stoyanov <rstoyano@redhat.com>
This commit is contained in:
Radostin Stoyanov 2025-03-27 12:21:34 +00:00
parent 9a5996581e
commit 9ebc772559
1 changed files with 4 additions and 4 deletions
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8
mm/migrate.c
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@ -606,20 +606,20 @@ void folio_migrate_flags(struct folio *newfolio, struct folio *folio)
* Copy NUMA information to the new page, to prevent over-eager
* future migrations of this same page.
*/
cpupid = page_cpupid_xchg_last(&folio->page, -1);
cpupid = folio_xchg_last_cpupid(folio, -1);
/*
* For memory tiering mode, when migrate between slow and fast
* memory node, reset cpupid, because that is used to record
* page access time in slow memory node.
*/
if (sysctl_numa_balancing_mode & NUMA_BALANCING_MEMORY_TIERING) {
bool f_toptier = node_is_toptier(page_to_nid(&folio->page));
bool t_toptier = node_is_toptier(page_to_nid(&newfolio->page));
bool f_toptier = node_is_toptier(folio_nid(folio));
bool t_toptier = node_is_toptier(folio_nid(newfolio));
if (f_toptier != t_toptier)
cpupid = -1;
}
page_cpupid_xchg_last(&newfolio->page, cpupid);
folio_xchg_last_cpupid(newfolio, cpupid);
folio_migrate_ksm(newfolio, folio);
/*