STATIC int
xfs_ioc_setxflags(
xfs_inode_t *ip,
struct file *filp,
void __user *arg)
{
struct fsxattr fa;
unsigned int flags;
unsigned int mask;
int error;
if (copy_from_user(&flags, arg, sizeof(flags)))
return -EFAULT;
if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | \
FS_NOATIME_FL | FS_NODUMP_FL | \
FS_SYNC_FL))
return -EOPNOTSUPP;
mask = FSX_XFLAGS;
if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
mask |= FSX_NONBLOCK;
fa.fsx_xflags = xfs_merge_ioc_xflags(flags, xfs_ip2xflags(ip));
error = mnt_want_write_file(filp);
if (error)
return error;
error = xfs_ioctl_setattr(ip, &fa, mask);
mnt_drop_write_file(filp);
return -error;
}
STATIC int
xfs_ioc_xattr(
vnode_t *vp,
xfs_inode_t *ip,
struct file *filp,
unsigned int cmd,
unsigned long arg)
{
struct fsxattr fa;
vattr_t va;
int error;
int attr_flags;
unsigned int flags;
switch (cmd) {
case XFS_IOC_FSGETXATTR: {
va.va_mask = XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_NEXTENTS;
VOP_GETATTR(vp, &va, 0, NULL, error);
if (error)
return -error;
fa.fsx_xflags = va.va_xflags;
fa.fsx_extsize = va.va_extsize;
fa.fsx_nextents = va.va_nextents;
if (copy_to_user((struct fsxattr *)arg, &fa, sizeof(fa)))
return -XFS_ERROR(EFAULT);
return 0;
}
case XFS_IOC_FSSETXATTR: {
if (copy_from_user(&fa, (struct fsxattr *)arg, sizeof(fa)))
return -XFS_ERROR(EFAULT);
attr_flags = 0;
if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
attr_flags |= ATTR_NONBLOCK;
va.va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE;
va.va_xflags = fa.fsx_xflags;
va.va_extsize = fa.fsx_extsize;
VOP_SETATTR(vp, &va, attr_flags, NULL, error);
if (!error)
vn_revalidate(vp); /* update Linux inode flags */
return -error;
}
case XFS_IOC_FSGETXATTRA: {
va.va_mask = XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_ANEXTENTS;
VOP_GETATTR(vp, &va, 0, NULL, error);
if (error)
return -error;
fa.fsx_xflags = va.va_xflags;
fa.fsx_extsize = va.va_extsize;
fa.fsx_nextents = va.va_anextents;
if (copy_to_user((struct fsxattr *)arg, &fa, sizeof(fa)))
return -XFS_ERROR(EFAULT);
return 0;
}
case XFS_IOC_GETXFLAGS: {
flags = xfs_di2lxflags(ip->i_d.di_flags);
if (copy_to_user((unsigned int *)arg, &flags, sizeof(flags)))
return -XFS_ERROR(EFAULT);
return 0;
}
case XFS_IOC_SETXFLAGS: {
if (copy_from_user(&flags, (unsigned int *)arg, sizeof(flags)))
return -XFS_ERROR(EFAULT);
if (flags & ~(LINUX_XFLAG_IMMUTABLE | LINUX_XFLAG_APPEND | \
LINUX_XFLAG_NOATIME | LINUX_XFLAG_NODUMP | \
LINUX_XFLAG_SYNC))
return -XFS_ERROR(EOPNOTSUPP);
attr_flags = 0;
if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
attr_flags |= ATTR_NONBLOCK;
va.va_mask = XFS_AT_XFLAGS;
va.va_xflags = xfs_merge_ioc_xflags(flags,
xfs_dic2xflags(&ip->i_d, ARCH_NOCONVERT));
VOP_SETATTR(vp, &va, attr_flags, NULL, error);
if (!error)
vn_revalidate(vp); /* update Linux inode flags */
return -error;
}
case XFS_IOC_GETVERSION: {
flags = LINVFS_GET_IP(vp)->i_generation;
if (copy_to_user((unsigned int *)arg, &flags, sizeof(flags)))
return -XFS_ERROR(EFAULT);
return 0;
}
default:
return -ENOTTY;
}
}
STATIC int
xfs_ioc_xattr(
vnode_t *vp,
xfs_inode_t *ip,
struct file *filp,
unsigned int cmd,
void __user *arg)
{
struct fsxattr fa;
struct vattr *vattr;
int error = 0;
int attr_flags;
unsigned int flags;
vattr = kmalloc(sizeof(*vattr), GFP_KERNEL);
if (unlikely(!vattr))
return -ENOMEM;
switch (cmd) {
case XFS_IOC_FSGETXATTR: {
vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | \
XFS_AT_NEXTENTS | XFS_AT_PROJID;
VOP_GETATTR(vp, vattr, 0, NULL, error);
if (unlikely(error)) {
error = -error;
break;
}
fa.fsx_xflags = vattr->va_xflags;
fa.fsx_extsize = vattr->va_extsize;
fa.fsx_nextents = vattr->va_nextents;
fa.fsx_projid = vattr->va_projid;
if (copy_to_user(arg, &fa, sizeof(fa))) {
error = -EFAULT;
break;
}
break;
}
case XFS_IOC_FSSETXATTR: {
if (copy_from_user(&fa, arg, sizeof(fa))) {
error = -EFAULT;
break;
}
attr_flags = 0;
if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
attr_flags |= ATTR_NONBLOCK;
vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | XFS_AT_PROJID;
vattr->va_xflags = fa.fsx_xflags;
vattr->va_extsize = fa.fsx_extsize;
vattr->va_projid = fa.fsx_projid;
VOP_SETATTR(vp, vattr, attr_flags, NULL, error);
if (likely(!error))
__vn_revalidate(vp, vattr); /* update flags */
error = -error;
break;
}
case XFS_IOC_FSGETXATTRA: {
vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | \
XFS_AT_ANEXTENTS | XFS_AT_PROJID;
VOP_GETATTR(vp, vattr, 0, NULL, error);
if (unlikely(error)) {
error = -error;
break;
}
fa.fsx_xflags = vattr->va_xflags;
fa.fsx_extsize = vattr->va_extsize;
fa.fsx_nextents = vattr->va_anextents;
fa.fsx_projid = vattr->va_projid;
if (copy_to_user(arg, &fa, sizeof(fa))) {
error = -EFAULT;
break;
}
break;
}
case XFS_IOC_GETXFLAGS: {
flags = xfs_di2lxflags(ip->i_d.di_flags);
if (copy_to_user(arg, &flags, sizeof(flags)))
error = -EFAULT;
break;
}
case XFS_IOC_SETXFLAGS: {
if (copy_from_user(&flags, arg, sizeof(flags))) {
error = -EFAULT;
break;
}
if (flags & ~(LINUX_XFLAG_IMMUTABLE | LINUX_XFLAG_APPEND | \
LINUX_XFLAG_NOATIME | LINUX_XFLAG_NODUMP | \
LINUX_XFLAG_SYNC)) {
error = -EOPNOTSUPP;
break;
}
attr_flags = 0;
if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
attr_flags |= ATTR_NONBLOCK;
vattr->va_mask = XFS_AT_XFLAGS;
vattr->va_xflags = xfs_merge_ioc_xflags(flags,
xfs_ip2xflags(ip));
VOP_SETATTR(vp, vattr, attr_flags, NULL, error);
if (likely(!error))
__vn_revalidate(vp, vattr); /* update flags */
error = -error;
break;
}
case XFS_IOC_GETVERSION: {
flags = vn_to_inode(vp)->i_generation;
if (copy_to_user(arg, &flags, sizeof(flags)))
error = -EFAULT;
break;
}
default:
error = -ENOTTY;
break;
}
kfree(vattr);
return error;
}