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mm/percpu: use list_first_entry_or_null in pcpu_reclaim_populated()

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To replace list_empty()/list_first_entry() pair to simplify code.

Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Dennis Zhou <dennis@kernel.org>
Signed-off-by: Dennis Zhou <dennis@kernel.org>
This commit is contained in:
Baoquan He 2022-10-25 11:11:45 +08:00 committed by Dennis Zhou
parent 5a7d596a05
commit c1f6688d35
1 changed files with 3 additions and 3 deletions
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6
mm/percpu.c
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@ -2143,9 +2143,9 @@ static void pcpu_reclaim_populated(void)
* other accessor is the free path which only returns area back to the
* allocator not touching the populated bitmap.
*/
while (!list_empty(&pcpu_chunk_lists[pcpu_to_depopulate_slot])) {
chunk = list_first_entry(&pcpu_chunk_lists[pcpu_to_depopulate_slot],
struct pcpu_chunk, list);
while ((chunk = list_first_entry_or_null(
&pcpu_chunk_lists[pcpu_to_depopulate_slot],
struct pcpu_chunk, list))) {
WARN_ON(chunk->immutable);
/*