diff options
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/mm/memory.c b/mm/memory.c index 01bdf9dbbfa..861f7982dd5 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3351,7 +3351,7 @@ int in_gate_area_no_task(unsigned long addr) #endif /* __HAVE_ARCH_GATE_AREA */ -static int follow_pte(struct mm_struct *mm, unsigned long address, +static int __follow_pte(struct mm_struct *mm, unsigned long address, pte_t **ptepp, spinlock_t **ptlp) { pgd_t *pgd; @@ -3388,6 +3388,17 @@ out: return -EINVAL; } +static inline int follow_pte(struct mm_struct *mm, unsigned long address, + pte_t **ptepp, spinlock_t **ptlp) +{ + int res; + + /* (void) is needed to make gcc happy */ + (void) __cond_lock(*ptlp, + !(res = __follow_pte(mm, address, ptepp, ptlp))); + return res; +} + /** * follow_pfn - look up PFN at a user virtual address * @vma: memory mapping |