diff options
| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-04-29 08:16:17 +0200 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-04-29 08:16:17 +0200 |
| commit | 85f73e6d752de325d7570293e909140bc3280d37 (patch) | |
| tree | 59b37e45409486c9d3a1d2e1402f4fe01506f496 /mm/compaction.c | |
| parent | mm: compaction: clean up comment for sched contention (diff) | |
| download | linux-85f73e6d752de325d7570293e909140bc3280d37.tar.xz linux-85f73e6d752de325d7570293e909140bc3280d37.zip | |
mm: compaction: clean up comment about suitable migration target recheck
checked_pageblock is already removed and suitable_migration_target is not
rechecked under the zone lock since commit f8224aa5a0a4 ("mm, compaction:
do not recheck suitable_migration_target under lock"). Correct the
comment accordingly.
Link: https://lkml.kernel.org/r/20220418141253.24298-6-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Charan Teja Kalla <charante@codeaurora.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Pintu Kumar <pintu@codeaurora.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index e839b26fb3d8..97821b7d7a4f 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -599,13 +599,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, if (!PageBuddy(page)) goto isolate_fail; - /* - * If we already hold the lock, we can skip some rechecking. - * Note that if we hold the lock now, checked_pageblock was - * already set in some previous iteration (or strict is true), - * so it is correct to skip the suitable migration target - * recheck as well. - */ + /* If we already hold the lock, we can skip some rechecking. */ if (!locked) { locked = compact_lock_irqsave(&cc->zone->lock, &flags, cc); |