diff options
| author | Zhiguo Jiang <justinjiang@vivo.com> | 2024-01-12 02:23:52 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-11-06 01:56:24 +0100 |
| commit | bbc251f30ef312343fec3f5c0591ce01078c2bb9 (patch) | |
| tree | 99c883ccee62c6e154536743afc3d8b2611442ba /mm/vmscan.c | |
| parent | maple_tree: memset maple_big_node as a whole (diff) | |
| download | linux-bbc251f30ef312343fec3f5c0591ce01078c2bb9.tar.xz linux-bbc251f30ef312343fec3f5c0591ce01078c2bb9.zip | |
mm: fix shrink nr.unqueued_dirty counter issue
It is needed to ensure sc->nr.unqueued_dirty > 0, which can avoid setting
PGDAT_DIRTY flag when sc->nr.unqueued_dirty and sc->nr.file_taken are both
zero.
Link: https://lkml.kernel.org/r/20240112012353.1387-1-justinjiang@vivo.com
Signed-off-by: Zhiguo Jiang <justinjiang@vivo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 28ba2b06fc7d..20dd72c98813 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -5990,7 +5990,8 @@ again: set_bit(PGDAT_WRITEBACK, &pgdat->flags); /* Allow kswapd to start writing pages during reclaim.*/ - if (sc->nr.unqueued_dirty == sc->nr.file_taken) + if (sc->nr.unqueued_dirty && + sc->nr.unqueued_dirty == sc->nr.file_taken) set_bit(PGDAT_DIRTY, &pgdat->flags); /* |