C++ (Cpp) XFS_SEND_MMAP Examples

Example #1

File: xfs_file.c Project: GodFox/magx_kernel_xpixl

STATIC int
linvfs_file_mmap(
	struct file	*filp,
	struct vm_area_struct *vma)
{
	struct inode	*ip = filp->f_dentry->d_inode;
	vnode_t		*vp = LINVFS_GET_VP(ip);
	vattr_t		va = { .va_mask = XFS_AT_UPDATIME };
	int		error;

	if (vp->v_vfsp->vfs_flag & VFS_DMI) {
		xfs_mount_t	*mp = XFS_VFSTOM(vp->v_vfsp);

		error = -XFS_SEND_MMAP(mp, vma, 0);
		if (error)
			return error;
	}

	vma->vm_ops = &linvfs_file_vm_ops;

	VOP_SETATTR(vp, &va, XFS_AT_UPDATIME, NULL, error);
	if (!error)
		vn_revalidate(vp);	/* update Linux inode flags */
	return 0;
}

Example #2

File: xfs_file.c Project: PennPanda/linux-repo

STATIC int
xfs_vm_fault(
	struct vm_area_struct	*vma,
	struct vm_fault	*vmf)
{
	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), vma, 0))
		return VM_FAULT_SIGBUS;
	return filemap_fault(vma, vmf);
}

Example #3

File: xfs_file.c Project: PennPanda/linux-repo

STATIC int
xfs_vm_mprotect(
	struct vm_area_struct *vma,
	unsigned int	newflags)
{
	struct inode	*inode = vma->vm_file->f_path.dentry->d_inode;
	struct xfs_mount *mp = XFS_M(inode->i_sb);
	int		error = 0;

	if (mp->m_flags & XFS_MOUNT_DMAPI) {
		if ((vma->vm_flags & VM_MAYSHARE) &&
		    (newflags & VM_WRITE) && !(vma->vm_flags & VM_WRITE))
			error = XFS_SEND_MMAP(mp, vma, VM_WRITE);
	}
	return error;
}

Example #4

File: xfs_file.c Project: BackupTheBerlios/arp2-svn

STATIC int
xfs_vm_mprotect(
	struct vm_area_struct *vma,
	unsigned int	newflags)
{
	vnode_t		*vp = vn_from_inode(vma->vm_file->f_dentry->d_inode);
	int		error = 0;

	if (vp->v_vfsp->vfs_flag & VFS_DMI) {
		if ((vma->vm_flags & VM_MAYSHARE) &&
		    (newflags & VM_WRITE) && !(vma->vm_flags & VM_WRITE)) {
			xfs_mount_t	*mp = XFS_VFSTOM(vp->v_vfsp);

			error = XFS_SEND_MMAP(mp, vma, VM_WRITE);
		    }
	}
	return error;
}

Example #5

File: xfs_file.c Project: BackupTheBerlios/arp2-svn

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);
}