}
#ifdef CONFIG_XFS_DMAPI
-STATIC struct page *
-xfs_vm_nopage(
- struct vm_area_struct *area,
- unsigned long address,
- int *type)
+STATIC int
+xfs_vm_fault(
+ struct vm_area_struct *vma,
+ struct vm_fault *vmf)
{
- struct inode *inode = area->vm_file->f_path.dentry->d_inode;
+ struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
bhv_vnode_t *vp = vn_from_inode(inode);
ASSERT_ALWAYS(vp->v_vfsp->vfs_flag & VFS_DMI);
- if (XFS_SEND_MMAP(XFS_VFSTOM(vp->v_vfsp), area, 0))
- return NULL;
- return filemap_nopage(area, address, type);
+ if (XFS_SEND_MMAP(XFS_VFSTOM(vp->v_vfsp), vma, 0))
+ return VM_FAULT_SIGBUS;
+ return filemap_fault(vma, vmf);
}
#endif /* CONFIG_XFS_DMAPI */
struct vm_area_struct *vma)
{
vma->vm_ops = &xfs_file_vm_ops;
+ vma->vm_flags |= VM_CAN_NONLINEAR;
#ifdef CONFIG_XFS_DMAPI
if (vn_from_inode(filp->f_path.dentry->d_inode)->v_vfsp->vfs_flag & VFS_DMI)
if (!ip)
return -EINVAL;
- if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ))
+ if (DM_EVENT_ENABLED(ip, DM_EVENT_READ))
return -XFS_SEND_DATA(mp, DM_EVENT_READ, vp,
0, 0, 0, NULL);
}
}
#endif /* HAVE_FOP_OPEN_EXEC */
+/*
+ * mmap()d file has taken write protection fault and is being made
+ * writable. We can set the page state up correctly for a writable
+ * page, which means we can do correct delalloc accounting (ENOSPC
+ * checking!) and unwritten extent mapping.
+ */
+STATIC int
+xfs_vm_page_mkwrite(
+ struct vm_area_struct *vma,
+ struct page *page)
+{
+ return block_page_mkwrite(vma, page, xfs_get_blocks);
+}
+
const struct file_operations xfs_file_operations = {
.llseek = generic_file_llseek,
.read = do_sync_read,
};
static struct vm_operations_struct xfs_file_vm_ops = {
- .nopage = filemap_nopage,
- .populate = filemap_populate,
+ .fault = filemap_fault,
+ .page_mkwrite = xfs_vm_page_mkwrite,
};
#ifdef CONFIG_XFS_DMAPI
static struct vm_operations_struct xfs_dmapi_file_vm_ops = {
- .nopage = xfs_vm_nopage,
- .populate = filemap_populate,
+ .fault = xfs_vm_fault,
+ .page_mkwrite = xfs_vm_page_mkwrite,
#ifdef HAVE_VMOP_MPROTECT
.mprotect = xfs_vm_mprotect,
#endif