diff options
| author |   Yu Zhao <yuzhao@google.com> | 2022-09-28 13:36:58 -0600 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2022-10-07 14:28:39 -0700 |
| commit | 14aa8b2d5c2ebead01b542f62d68029023054774 (patch) | |
| tree | 31f0ace9fb727fee9c89c916dea4c9614d75937e | |
| parent | mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol (diff) | |
| download | linux-dev-14aa8b2d5c2ebead01b542f62d68029023054774.tar.xz linux-dev-14aa8b2d5c2ebead01b542f62d68029023054774.zip | |
mm/mglru: don't sync disk for each aging cycle
wakeup_flusher_threads() was added under the assumption that if a system
runs out of clean cold pages, it might want to write back dirty pages more
aggressively so that they can become clean and be dropped.
However, doing so can breach the rate limit a system wants to impose on
writeback, resulting in early SSD wearout.
Link: https://lkml.kernel.org/r/YzSiWq9UEER5LKup@google.com
Fixes: bd74fdaea146 ("mm: multi-gen LRU: support page table walks")
Signed-off-by: Yu Zhao <yuzhao@google.com>
Reported-by: Axel Rasmussen <axelrasmussen@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/vmscan.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index c5a4bff11da6..3240d5dd7784 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -4413,8 +4413,6 @@ done: if (wq_has_sleeper(&lruvec->mm_state.wait)) wake_up_all(&lruvec->mm_state.wait); - wakeup_flusher_threads(WB_REASON_VMSCAN); - return true; } |