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| author | Ma Wupeng <mawupeng1@huawei.com> | 2025-02-17 04:43:28 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-03-06 08:36:13 +0300 |
| commit | 773b9a6aa6d38894b95088e3ed6f8a701d9f50fd (patch) | |
| tree | 832bc244b13b7185acc096b78cb82c609f0fcbf1 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | b81679b1633aa43c0d973adfa816d78c1ed0d032 (diff) | |
| download | linux-773b9a6aa6d38894b95088e3ed6f8a701d9f50fd.tar.xz | |
mm: memory-hotplug: check folio ref count first in do_migrate_range
If a folio has an increased reference count, folio_try_get() will acquire
it, perform necessary operations, and then release it. In the case of a
poisoned folio without an elevated reference count (which is unlikely for
memory-failure), folio_try_get() will simply bypass it.
Therefore, relocate the folio_try_get() function, responsible for checking
and acquiring this reference count at first.
Link: https://lkml.kernel.org/r/20250217014329.3610326-3-mawupeng1@huawei.com
Signed-off-by: Ma Wupeng <mawupeng1@huawei.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions