diff options
| author | Linux Build Service Account <lnxbuild@localhost> | 2019-06-30 03:26:38 -0700 |
|---|---|---|
| committer | Linux Build Service Account <lnxbuild@localhost> | 2019-06-30 03:26:38 -0700 |
| commit | f6f18bf58a688e45e149708a00659bd1010ef94c (patch) | |
| tree | aea1549c4c8f28ad359a92b7702481b2cb369d20 /include/linux/sched.h | |
| parent | c9d92a953ba0dffba643376ec463754a88db107a (diff) | |
| parent | 17c66e9e49a181498ae3c75809c98fdbe630de28 (diff) | |
Merge 17c66e9e49a181498ae3c75809c98fdbe630de28 on remote branch
Change-Id: I49238aefe09bba152a8000c046959157c328f183
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 35074a03fcf4..ccd0f37dcff7 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -3016,12 +3016,17 @@ extern struct mm_struct * mm_alloc(void); /* mmdrop drops the mm and the page tables */ extern void __mmdrop(struct mm_struct *); -static inline void mmdrop(struct mm_struct * mm) +static inline void mmdrop(struct mm_struct *mm) { if (unlikely(atomic_dec_and_test(&mm->mm_count))) __mmdrop(mm); } +static inline bool mmget_not_zero(struct mm_struct *mm) +{ + return atomic_inc_not_zero(&mm->mm_users); +} + /* mmput gets rid of the mappings and all user-space */ extern int mmput(struct mm_struct *); /* same as above but performs the slow path from the async kontext. Can |