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| author | Levi Yun <ppbuk5246@gmail.com> | 2024-01-26 15:25:54 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-02-22 10:24:41 -0800 |
| commit | 96200c915040c2ec6f6c173a29caf9f7c9c15a7e (patch) | |
| tree | f913a5b5e029c020b898e94ff24658e65c7cdeee /mm/vmscan.c | |
| parent | 13ef7424577ff9b663aeaa4fda67e186d9856df3 (diff) | |
| download | linux-96200c915040c2ec6f6c173a29caf9f7c9c15a7e.tar.gz | |
kswapd: replace try_to_freeze() with kthread_freezable_should_stop()
Instead of using try_to_freeze, use kthread_freezable_should_stop in
kswapd. By this, we can avoid unnecessary freezing when kswapd should
stop.
Link: https://lkml.kernel.org/r/20240126152556.58791-1-ppbuk5246@gmail.com
Signed-off-by: Levi Yun <ppbuk5246@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 4f9c854ce6cc6..1f139830b26f6 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -6796,6 +6796,7 @@ restart: bool raise_priority = true; bool balanced; bool ret; + bool was_frozen; sc.reclaim_idx = highest_zoneidx; @@ -6894,9 +6895,9 @@ restart: /* Check if kswapd should be suspending */ __fs_reclaim_release(_THIS_IP_); - ret = try_to_freeze(); + ret = kthread_freezable_should_stop(&was_frozen); __fs_reclaim_acquire(_THIS_IP_); - if (ret || kthread_should_stop()) + if (was_frozen || ret) break; /* @@ -7102,7 +7103,7 @@ static int kswapd(void *p) WRITE_ONCE(pgdat->kswapd_highest_zoneidx, MAX_NR_ZONES); atomic_set(&pgdat->nr_writeback_throttled, 0); for ( ; ; ) { - bool ret; + bool was_frozen; alloc_order = reclaim_order = READ_ONCE(pgdat->kswapd_order); highest_zoneidx = kswapd_highest_zoneidx(pgdat, @@ -7119,15 +7120,14 @@ kswapd_try_sleep: WRITE_ONCE(pgdat->kswapd_order, 0); WRITE_ONCE(pgdat->kswapd_highest_zoneidx, MAX_NR_ZONES); - ret = try_to_freeze(); - if (kthread_should_stop()) + if (kthread_freezable_should_stop(&was_frozen)) break; /* * We can speed up thawing tasks if we don't call balance_pgdat * after returning from the refrigerator */ - if (ret) + if (was_frozen) continue; /* |