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Merge branches 'acpica-fixes' and 'device-properties-fixes'
[deliverable/linux.git]
/
mm
/
page_io.c
diff --git
a/mm/page_io.c
b/mm/page_io.c
index cd92e3d67a32201fac72196a050fb6e47017d33d..985f23cfa79b75d3b38fad9bfa5cdf4385f7c8e4 100644
(file)
--- a/
mm/page_io.c
+++ b/
mm/page_io.c
@@
-353,7
+353,11
@@
int swap_readpage(struct page *page)
ret = bdev_read_page(sis->bdev, swap_page_sector(page), page);
if (!ret) {
- swap_slot_free_notify(page);
+ if (trylock_page(page)) {
+ swap_slot_free_notify(page);
+ unlock_page(page);
+ }
+
count_vm_event(PSWPIN);
return 0;
}
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