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Diffstat (limited to 'mm/vmscan.c')
-rw-r--r--mm/vmscan.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 95ebcb5b3e12..a9761b04564c 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1156,7 +1156,8 @@ typedef enum {
* pageout is called by shrink_page_list() for each dirty page.
* Calls ->writepage().
*/
-static pageout_t pageout(struct folio *folio, struct address_space *mapping)
+static pageout_t pageout(struct folio *folio, struct address_space *mapping,
+ struct swap_iocb **plug)
{
/*
* If the folio is dirty, only perform writeback if that write
@@ -1201,6 +1202,7 @@ static pageout_t pageout(struct folio *folio, struct address_space *mapping)
.range_start = 0,
.range_end = LLONG_MAX,
.for_reclaim = 1,
+ .swap_plug = plug,
};
folio_set_reclaim(folio);
@@ -1533,6 +1535,7 @@ static unsigned int shrink_page_list(struct list_head *page_list,
unsigned int nr_reclaimed = 0;
unsigned int pgactivate = 0;
bool do_demote_pass;
+ struct swap_iocb *plug = NULL;
memset(stat, 0, sizeof(*stat));
cond_resched();
@@ -1814,7 +1817,7 @@ retry:
* starts and then write it out here.
*/
try_to_unmap_flush_dirty();
- switch (pageout(folio, mapping)) {
+ switch (pageout(folio, mapping, &plug)) {
case PAGE_KEEP:
goto keep_locked;
case PAGE_ACTIVATE:
@@ -1968,6 +1971,8 @@ keep:
list_splice(&ret_pages, page_list);
count_vm_events(PGACTIVATE, pgactivate);
+ if (plug)
+ swap_write_unplug(plug);
return nr_reclaimed;
}