diff options
-rw-r--r-- | include/linux/migrate.h | 8 | ||||
-rw-r--r-- | mm/mempolicy.c | 9 | ||||
-rw-r--r-- | mm/migrate.c | 2 |
3 files changed, 9 insertions, 10 deletions
diff --git a/include/linux/migrate.h b/include/linux/migrate.h index 48148e0cdbd1..75e55dcdeb18 100644 --- a/include/linux/migrate.h +++ b/include/linux/migrate.h | |||
@@ -5,6 +5,14 @@ | |||
5 | 5 | ||
6 | typedef struct page *new_page_t(struct page *, unsigned long private, int **); | 6 | typedef struct page *new_page_t(struct page *, unsigned long private, int **); |
7 | 7 | ||
8 | /* Check if a vma is migratable */ | ||
9 | static inline int vma_migratable(struct vm_area_struct *vma) | ||
10 | { | ||
11 | if (vma->vm_flags & (VM_IO|VM_HUGETLB|VM_PFNMAP|VM_RESERVED)) | ||
12 | return 0; | ||
13 | return 1; | ||
14 | } | ||
15 | |||
8 | #ifdef CONFIG_MIGRATION | 16 | #ifdef CONFIG_MIGRATION |
9 | extern int isolate_lru_page(struct page *p, struct list_head *pagelist); | 17 | extern int isolate_lru_page(struct page *p, struct list_head *pagelist); |
10 | extern int putback_lru_pages(struct list_head *l); | 18 | extern int putback_lru_pages(struct list_head *l); |
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index cf2a5381030a..d76e8eb342d0 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c | |||
@@ -321,15 +321,6 @@ static inline int check_pgd_range(struct vm_area_struct *vma, | |||
321 | return 0; | 321 | return 0; |
322 | } | 322 | } |
323 | 323 | ||
324 | /* Check if a vma is migratable */ | ||
325 | static inline int vma_migratable(struct vm_area_struct *vma) | ||
326 | { | ||
327 | if (vma->vm_flags & ( | ||
328 | VM_LOCKED|VM_IO|VM_HUGETLB|VM_PFNMAP|VM_RESERVED)) | ||
329 | return 0; | ||
330 | return 1; | ||
331 | } | ||
332 | |||
333 | /* | 324 | /* |
334 | * Check if all pages in a range are on a set of nodes. | 325 | * Check if all pages in a range are on a set of nodes. |
335 | * If pagelist != NULL then isolate pages from the LRU and | 326 | * If pagelist != NULL then isolate pages from the LRU and |
diff --git a/mm/migrate.c b/mm/migrate.c index e9b161bde95b..7a66ca25dc8a 100644 --- a/mm/migrate.c +++ b/mm/migrate.c | |||
@@ -781,7 +781,7 @@ static int do_move_pages(struct mm_struct *mm, struct page_to_node *pm, | |||
781 | 781 | ||
782 | err = -EFAULT; | 782 | err = -EFAULT; |
783 | vma = find_vma(mm, pp->addr); | 783 | vma = find_vma(mm, pp->addr); |
784 | if (!vma) | 784 | if (!vma || !vma_migratable(vma)) |
785 | goto set_status; | 785 | goto set_status; |
786 | 786 | ||
787 | page = follow_page(vma, pp->addr, FOLL_GET); | 787 | page = follow_page(vma, pp->addr, FOLL_GET); |