diff options
Diffstat (limited to 'arch/x86/mm/gup.c')
| -rw-r--r-- | arch/x86/mm/gup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c index 71da1bca13cb..738e6593799d 100644 --- a/arch/x86/mm/gup.c +++ b/arch/x86/mm/gup.c | |||
| @@ -18,7 +18,7 @@ static inline pte_t gup_get_pte(pte_t *ptep) | |||
| 18 | #else | 18 | #else |
| 19 | /* | 19 | /* |
| 20 | * With get_user_pages_fast, we walk down the pagetables without taking | 20 | * With get_user_pages_fast, we walk down the pagetables without taking |
| 21 | * any locks. For this we would like to load the pointers atoimcally, | 21 | * any locks. For this we would like to load the pointers atomically, |
| 22 | * but that is not possible (without expensive cmpxchg8b) on PAE. What | 22 | * but that is not possible (without expensive cmpxchg8b) on PAE. What |
| 23 | * we do have is the guarantee that a pte will only either go from not | 23 | * we do have is the guarantee that a pte will only either go from not |
| 24 | * present to present, or present to not present or both -- it will not | 24 | * present to present, or present to not present or both -- it will not |