diff options
| author | Jeff Garzik <jgarzik@pobox.com> | 2005-10-20 10:06:09 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-20 10:06:09 -0400 |
| commit | 902f90735b693550eb51a3989895f3148b8229d8 (patch) | |
| tree | faddc60f0b27ed6d2a26f20c2c09f365dc4a2d7d /include/linux/hugetlb.h | |
| parent | 07b8fede6da76ae6a0f547716c44b801a116bb4a (diff) | |
| parent | 93918e9afc76717176e9e114e79cdbb602a45ae8 (diff) | |
Merge branch 'master'
Diffstat (limited to 'include/linux/hugetlb.h')
| -rw-r--r-- | include/linux/hugetlb.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index e670b0d13fe0..42cb7d70f9ac 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -155,11 +155,24 @@ static inline void set_file_hugepages(struct file *file) { file->f_op = &hugetlbfs_file_operations; } + +static inline int valid_hugetlb_file_off(struct vm_area_struct *vma, + unsigned long address) +{ + struct inode *inode = vma->vm_file->f_dentry->d_inode; + loff_t file_off = address - vma->vm_start; + + file_off += (vma->vm_pgoff << PAGE_SHIFT); + + return (file_off < inode->i_size); +} + #else /* !CONFIG_HUGETLBFS */ #define is_file_hugepages(file) 0 #define set_file_hugepages(file) BUG() #define hugetlb_zero_setup(size) ERR_PTR(-ENOSYS) +#define valid_hugetlb_file_off(vma, address) 0 #endif /* !CONFIG_HUGETLBFS */ |