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mm/damon/paddr: fix missing folio_sz update in damon_pa_young() 

JIRA: https://issues.redhat.com/browse/RHEL-27741

commit 70307b0e297a6634be855c49525ccbea50922a90
Author: Kefeng Wang <wangkefeng.wang@huawei.com>
Date:   Wed Mar 8 16:33:11 2023 +0800

    mm/damon/paddr: fix missing folio_sz update in damon_pa_young()

    The *folio_sz in damon_pa_young() will be used(as last_folio_sz) by
    __damon_pa_check_access(), so it's need to be updated, fix missing branch.

    Link: https://lkml.kernel.org/r/20230308083311.120951-4-wangkefeng.wang@huawei.com
    Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
    Reviewed-by: SeongJae Park <sj@kernel.org>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Signed-off-by: Chris von Recklinghausen <crecklin@redhat.com>
This commit is contained in:
Chris von Recklinghausen 2024-04-12 15:16:58 -04:00
parent f5455a1c23
commit 4517a62d0c
1 changed files with 2 additions and 4 deletions
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6
mm/damon/paddr.c
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@ -134,10 +134,8 @@ static bool damon_pa_young(unsigned long paddr, unsigned long *folio_sz)
}
need_lock = !folio_test_anon(folio) || folio_test_ksm(folio);
if (need_lock && !folio_trylock(folio)) {
folio_put(folio);
return false;
}
if (need_lock && !folio_trylock(folio))
goto out;
rmap_walk(folio, &rwc);