#include <linux/highmem.h>
#include <linux/init.h>
#include <linux/string.h>
+#include <linux/capability.h>
#include <linux/backing-dev.h>
#include <linux/hugetlb.h>
#include <linux/pagevec.h>
loff_t len, vma_len;
int ret;
- if ((vma->vm_flags & (VM_MAYSHARE | VM_WRITE)) == VM_WRITE)
- return -EINVAL;
-
if (vma->vm_pgoff & (HPAGE_SIZE / PAGE_SIZE - 1))
return -EINVAL;
vma_len = (loff_t)(vma->vm_end - vma->vm_start);
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
file_accessed(file);
vma->vm_flags |= VM_HUGETLB | VM_RESERVED;
vma->vm_ops = &hugetlb_vm_ops;
if (inode->i_size < len)
inode->i_size = len;
out:
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
return ret;
}
inode->i_mapping->backing_dev_info =&hugetlbfs_backing_dev_info;
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
info = HUGETLBFS_I(inode);
- mpol_shared_policy_init(&info->policy);
+ mpol_shared_policy_init(&info->policy, MPOL_DEFAULT, NULL);
switch (mode & S_IFMT) {
default:
init_special_inode(inode, mode, dev);
buf->f_bsize = HPAGE_SIZE;
if (sbinfo) {
spin_lock(&sbinfo->stat_lock);
- buf->f_blocks = sbinfo->max_blocks;
- buf->f_bavail = buf->f_bfree = sbinfo->free_blocks;
- buf->f_files = sbinfo->max_inodes;
- buf->f_ffree = sbinfo->free_inodes;
+ /* If no limits set, just report 0 for max/free/used
+ * blocks, like simple_statfs() */
+ if (sbinfo->max_blocks >= 0) {
+ buf->f_blocks = sbinfo->max_blocks;
+ buf->f_bavail = buf->f_bfree = sbinfo->free_blocks;
+ buf->f_files = sbinfo->max_inodes;
+ buf->f_ffree = sbinfo->free_inodes;
+ }
spin_unlock(&sbinfo->stat_lock);
}
buf->f_namelen = NAME_MAX;