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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-10-21 21:33:27 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-21 21:33:27 -0400 |
| commit | e78a57de94480226f7fc90d0b4837bfc6c99a9e0 (patch) | |
| tree | bfe0a664f88b6cb9d284869d615ae2d7fdb7cf63 /include/linux/hugetlb.h | |
| parent | 77501f3cb648e18733509a951ed31eddd7ef2c0b (diff) | |
| parent | 452503f993feffe96e8cc9fbff4888b96e2c5e40 (diff) | |
Merge branch 'upstream'
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 */ |