static struct page *ocfs2_nopage(struct vm_area_struct * area,
unsigned long address,
int *type)
{
struct page *page = NOPAGE_SIGBUS;
sigset_t blocked, oldset;
int ret;
mlog_entry("(area=%p, address=%lu, type=%p)\n", area, address,
type);
/* The best way to deal with signals in this path is
* to block them upfront, rather than allowing the
* locking paths to return -ERESTARTSYS. */
sigfillset(&blocked);
/* We should technically never get a bad ret return
* from sigprocmask */
ret = sigprocmask(SIG_BLOCK, &blocked, &oldset);
if (ret < 0) {
mlog_errno(ret);
goto out;
}
page = filemap_nopage(area, address, type);
ret = sigprocmask(SIG_SETMASK, &oldset, NULL);
if (ret < 0)
mlog_errno(ret);
out:
mlog_exit_ptr(page);
return page;
}
STATIC struct page *
xfs_vm_nopage(
struct vm_area_struct *area,
unsigned long address,
int *type)
{
struct inode *inode = area->vm_file->f_dentry->d_inode;
vnode_t *vp = vn_from_inode(inode);
xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp);
int error;
ASSERT_ALWAYS(vp->v_vfsp->vfs_flag & VFS_DMI);
error = XFS_SEND_MMAP(mp, area, 0);
if (error)
return NULL;
return filemap_nopage(area, address, type);
}