diff options
Diffstat (limited to 'include/linux/huge_mm.h')
| -rw-r--r-- | include/linux/huge_mm.h | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 8847c8c29791..48c32ebf65a7 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h | |||
| @@ -92,12 +92,8 @@ extern void __split_huge_page_pmd(struct mm_struct *mm, pmd_t *pmd); | |||
| 92 | #define wait_split_huge_page(__anon_vma, __pmd) \ | 92 | #define wait_split_huge_page(__anon_vma, __pmd) \ |
| 93 | do { \ | 93 | do { \ |
| 94 | pmd_t *____pmd = (__pmd); \ | 94 | pmd_t *____pmd = (__pmd); \ |
| 95 | spin_unlock_wait(&(__anon_vma)->root->lock); \ | 95 | anon_vma_lock(__anon_vma); \ |
| 96 | /* \ | 96 | anon_vma_unlock(__anon_vma); \ |
| 97 | * spin_unlock_wait() is just a loop in C and so the \ | ||
| 98 | * CPU can reorder anything around it. \ | ||
| 99 | */ \ | ||
| 100 | smp_mb(); \ | ||
| 101 | BUG_ON(pmd_trans_splitting(*____pmd) || \ | 97 | BUG_ON(pmd_trans_splitting(*____pmd) || \ |
| 102 | pmd_trans_huge(*____pmd)); \ | 98 | pmd_trans_huge(*____pmd)); \ |
| 103 | } while (0) | 99 | } while (0) |