diff options
Diffstat (limited to 'mm/internal.h')
| -rw-r--r-- | mm/internal.h | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/mm/internal.h b/mm/internal.h index bc0fa9a..d4b807d 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -271,20 +271,19 @@ extern unsigned int munlock_vma_page(struct page *page); extern void clear_page_mlock(struct page *page); /* - * mlock_migrate_page - called only from migrate_page_copy() to - * migrate the Mlocked page flag; update statistics. + * mlock_migrate_page - called only from migrate_misplaced_transhuge_page() + * (because that does not go through the full procedure of migration ptes): + * to migrate the Mlocked page flag; update statistics. */ static inline void mlock_migrate_page(struct page *newpage, struct page *page) { if (TestClearPageMlocked(page)) { - unsigned long flags; int nr_pages = hpage_nr_pages(page); - local_irq_save(flags); + /* Holding pmd lock, no change in irq context: __mod is safe */ __mod_zone_page_state(page_zone(page), NR_MLOCK, -nr_pages); SetPageMlocked(newpage); __mod_zone_page_state(page_zone(newpage), NR_MLOCK, nr_pages); - local_irq_restore(flags); } } |
