The patch titled
Subject: vmscan-add-a-vmscan-event-for-reclaim_pages-v3
has been added to the -mm mm-unstable branch. Its filename is
vmscan-add-a-vmscan-event-for-reclaim_pages-v3.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/vmscan-add-a-vmscan-event-for-reclaim_pages-v3.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Jaewon Kim <jaewon31.kim@xxxxxxxxxxx>
Subject: vmscan-add-a-vmscan-event-for-reclaim_pages-v3
Date: Wed, 16 Oct 2024 23:32:27 +0900
use sc.nr_scanned rather than new counting
Link: https://lkml.kernel.org/r/20241016143227.961162-1-jaewon31.kim@xxxxxxxxxxx
Signed-off-by: Jaewon Kim <jaewon31.kim@xxxxxxxxxxx>
Cc: Kalesh Singh <kaleshsingh@xxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: SeongJae Park <sj@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
--- a/mm/vmscan.c~vmscan-add-a-vmscan-event-for-reclaim_pages-v3
+++ a/mm/vmscan.c
@@ -2126,7 +2126,6 @@ static void shrink_active_list(unsigned
}
static unsigned int reclaim_folio_list(struct list_head *folio_list,
- unsigned int nr_scanned,
struct pglist_data *pgdat)
{
struct reclaim_stat stat;
@@ -2146,7 +2145,7 @@ static unsigned int reclaim_folio_list(s
list_del(&folio->lru);
folio_putback_lru(folio);
}
- trace_mm_vmscan_reclaim_pages(pgdat->node_id, nr_scanned, nr_reclaimed, &stat);
+ trace_mm_vmscan_reclaim_pages(pgdat->node_id, sc.nr_scanned, nr_reclaimed, &stat);
return nr_reclaimed;
}
@@ -2154,7 +2153,6 @@ static unsigned int reclaim_folio_list(s
unsigned long reclaim_pages(struct list_head *folio_list)
{
int nid;
- unsigned int nr_scanned = 0;
unsigned int nr_reclaimed = 0;
LIST_HEAD(node_folio_list);
unsigned int noreclaim_flag;
@@ -2171,18 +2169,15 @@ unsigned long reclaim_pages(struct list_
if (nid == folio_nid(folio)) {
folio_clear_active(folio);
list_move(&folio->lru, &node_folio_list);
- nr_scanned += folio_nr_pages(folio);
continue;
}
- nr_reclaimed += reclaim_folio_list(&node_folio_list, nr_scanned,
- NODE_DATA(nid));
- nr_scanned = 0;
+ nr_reclaimed += reclaim_folio_list(&node_folio_list, NODE_DATA(nid));
nid = folio_nid(lru_to_folio(folio_list));
} while (!list_empty(folio_list));
- nr_reclaimed += reclaim_folio_list(&node_folio_list, nr_scanned,
- NODE_DATA(nid));
+ nr_reclaimed += reclaim_folio_list(&node_folio_list, NODE_DATA(nid));
+
memalloc_noreclaim_restore(noreclaim_flag);
return nr_reclaimed;
_
Patches currently in -mm which might be from jaewon31.kim@xxxxxxxxxxx are
vmscan-add-a-vmscan-event-for-reclaim_pages.patch
vmscan-add-a-vmscan-event-for-reclaim_pages-v3.patch
