diff options
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/shm.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/ipc/shm.c b/ipc/shm.c index d4daf78df6da..fa1d322daa27 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -428,6 +428,17 @@ static int shm_split(struct vm_area_struct *vma, unsigned long addr) return 0; } +static unsigned long shm_pagesize(struct vm_area_struct *vma) +{ + struct file *file = vma->vm_file; + struct shm_file_data *sfd = shm_file_data(file); + + if (sfd->vm_ops->pagesize) + return sfd->vm_ops->pagesize(vma); + + return PAGE_SIZE; +} + #ifdef CONFIG_NUMA static int shm_set_policy(struct vm_area_struct *vma, struct mempolicy *new) { @@ -555,6 +566,7 @@ static const struct vm_operations_struct shm_vm_ops = { .close = shm_close, /* callback for when the vm-area is released */ .fault = shm_fault, .split = shm_split, + .pagesize = shm_pagesize, #if defined(CONFIG_NUMA) .set_policy = shm_set_policy, .get_policy = shm_get_policy, |