diff options
| -rw-r--r-- | mm/swapfile.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index fbceed67a075..f2824c3c31b4 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -772,10 +772,8 @@ static int try_to_unuse(unsigned int type) while (*swap_map > 1 && !retval && (p = p->next) != &start_mm->mmlist) { mm = list_entry(p, struct mm_struct, mmlist); - if (atomic_inc_return(&mm->mm_users) == 1) { - atomic_dec(&mm->mm_users); + if (!atomic_inc_not_zero(&mm->mm_users)) continue; - } spin_unlock(&mmlist_lock); mmput(prev_mm); prev_mm = mm; |