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authorKirill Tkhai <ktkhai@virtuozzo.com>2019-03-05 15:46:55 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-05 21:07:18 -0800
commita9e7c39fa9fd908bc914d691045c96fdc97da7cd (patch)
tree24de2fa8b129297fea77958bc46474245ec5b85b
parent2e25644e8da4ed3a27e7b8315aaae74660be72dc (diff)
downloadlinux-a9e7c39fa9fd908bc914d691045c96fdc97da7cd.tar.bz2
mm/vmscan.c: remove 7th argument of isolate_lru_pages()
We may simply check for sc->may_unmap in isolate_lru_pages() instead of doing that in both of its callers. Link: http://lkml.kernel.org/r/154748280735.29962.15867846875217618569.stgit@localhost.localdomain Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/vmscan.c15
1 files changed, 4 insertions, 11 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 63195364ab2e..a1c2f78cb78c 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1653,7 +1653,7 @@ static __always_inline void update_lru_sizes(struct lruvec *lruvec,
static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
struct lruvec *lruvec, struct list_head *dst,
unsigned long *nr_scanned, struct scan_control *sc,
- isolate_mode_t mode, enum lru_list lru)
+ enum lru_list lru)
{
struct list_head *src = &lruvec->lists[lru];
unsigned long nr_taken = 0;
@@ -1662,6 +1662,7 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
unsigned long skipped = 0;
unsigned long scan, total_scan, nr_pages;
LIST_HEAD(pages_skipped);
+ isolate_mode_t mode = (sc->may_unmap ? 0 : ISOLATE_UNMAPPED);
scan = 0;
for (total_scan = 0;
@@ -1900,7 +1901,6 @@ shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec,
unsigned long nr_reclaimed = 0;
unsigned long nr_taken;
struct reclaim_stat stat = {};
- isolate_mode_t isolate_mode = 0;
int file = is_file_lru(lru);
struct pglist_data *pgdat = lruvec_pgdat(lruvec);
struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat;
@@ -1921,13 +1921,10 @@ shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec,
lru_add_drain();
- if (!sc->may_unmap)
- isolate_mode |= ISOLATE_UNMAPPED;
-
spin_lock_irq(&pgdat->lru_lock);
nr_taken = isolate_lru_pages(nr_to_scan, lruvec, &page_list,
- &nr_scanned, sc, isolate_mode, lru);
+ &nr_scanned, sc, lru);
__mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, nr_taken);
reclaim_stat->recent_scanned[file] += nr_taken;
@@ -2084,19 +2081,15 @@ static void shrink_active_list(unsigned long nr_to_scan,
struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat;
unsigned nr_deactivate, nr_activate;
unsigned nr_rotated = 0;
- isolate_mode_t isolate_mode = 0;
int file = is_file_lru(lru);
struct pglist_data *pgdat = lruvec_pgdat(lruvec);
lru_add_drain();
- if (!sc->may_unmap)
- isolate_mode |= ISOLATE_UNMAPPED;
-
spin_lock_irq(&pgdat->lru_lock);
nr_taken = isolate_lru_pages(nr_to_scan, lruvec, &l_hold,
- &nr_scanned, sc, isolate_mode, lru);
+ &nr_scanned, sc, lru);
__mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, nr_taken);
reclaim_stat->recent_scanned[file] += nr_taken;