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| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-04-28 23:16:04 -0700 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-04-28 23:16:04 -0700 |
| commit | 5829f7dbae4158f9c946fac42760de848a8f1695 (patch) | |
| tree | 5954dcfe8654b8be1d19cf27d266cf16adc12a93 /mm/vmscan.c | |
| parent | 02e458d8d04ed952a0451c094e6498c6829c28e8 (diff) | |
| download | linux-5829f7dbae4158f9c946fac42760de848a8f1695.tar.bz2 | |
mm/vmscan: fix comment for current_may_throttle
Since commit 6d6435811c19 ("remove bdi_congested() and wb_congested() and
related functions"), there is no congested backing device check anymore.
Correct the comment accordingly.
[akpm@linux-foundation.org: tweak grammar]
Link: https://lkml.kernel.org/r/20220414120202.30082-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 0e2f253949fe..c5bfbb74fde1 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2297,10 +2297,9 @@ static unsigned int move_pages_to_lru(struct lruvec *lruvec, } /* - * If a kernel thread (such as nfsd for loop-back mounts) services - * a backing device by writing to the page cache it sets PF_LOCAL_THROTTLE. - * In that case we should only throttle if the backing device it is - * writing to is congested. In other cases it is safe to throttle. + * If a kernel thread (such as nfsd for loop-back mounts) services a backing + * device by writing to the page cache it sets PF_LOCAL_THROTTLE. In this case + * we should not throttle. Otherwise it is safe to do so. */ static int current_may_throttle(void) { |