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;
}
STATIC int
linvfs_setattr(
struct dentry *dentry,
struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
unsigned int ia_valid = attr->ia_valid;
vnode_t *vp = LINVFS_GET_VP(inode);
vattr_t vattr;
int flags = 0;
int error;
memset(&vattr, 0, sizeof(vattr_t));
if (ia_valid & ATTR_UID) {
vattr.va_mask |= XFS_AT_UID;
vattr.va_uid = attr->ia_uid;
}
if (ia_valid & ATTR_GID) {
vattr.va_mask |= XFS_AT_GID;
vattr.va_gid = attr->ia_gid;
}
if (ia_valid & ATTR_SIZE) {
vattr.va_mask |= XFS_AT_SIZE;
vattr.va_size = attr->ia_size;
}
if (ia_valid & ATTR_ATIME) {
vattr.va_mask |= XFS_AT_ATIME;
vattr.va_atime = attr->ia_atime;
inode->i_atime = attr->ia_atime;
}
if (ia_valid & ATTR_MTIME) {
vattr.va_mask |= XFS_AT_MTIME;
vattr.va_mtime = attr->ia_mtime;
}
if (ia_valid & ATTR_CTIME) {
vattr.va_mask |= XFS_AT_CTIME;
vattr.va_ctime = attr->ia_ctime;
}
if (ia_valid & ATTR_MODE) {
vattr.va_mask |= XFS_AT_MODE;
vattr.va_mode = attr->ia_mode;
if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
inode->i_mode &= ~S_ISGID;
}
if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET))
flags |= ATTR_UTIME;
#ifdef ATTR_NO_BLOCK
if ((ia_valid & ATTR_NO_BLOCK))
flags |= ATTR_NONBLOCK;
#endif
VOP_SETATTR(vp, &vattr, flags, NULL, error);
if (error)
return -error;
vn_revalidate(vp);
return error;
}
STATIC int
linvfs_revalidate(
struct dentry *dentry)
{
vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
if (unlikely(vp->v_flag & VMODIFIED))
return vn_revalidate(vp);
return 0;
}
/* Brute force approach for now - copy data into linux inode
* from the results of a getattr. This gets called out of things
* like stat.
*/
int
linvfs_revalidate_core(
struct inode *inode,
int flags)
{
vnode_t *vp = LINVFS_GET_VP(inode);
/* vn_revalidate returns (-) error so this is ok */
return vn_revalidate(vp, flags);
}
STATIC int
xfs_vn_setattr(
struct dentry *dentry,
struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
unsigned int ia_valid = attr->ia_valid;
bhv_vattr_t vattr = { 0 };
int flags = 0;
int error;
if (ia_valid & ATTR_UID) {
vattr.va_mask |= XFS_AT_UID;
vattr.va_uid = attr->ia_uid;
}
if (ia_valid & ATTR_GID) {
vattr.va_mask |= XFS_AT_GID;
vattr.va_gid = attr->ia_gid;
}
if (ia_valid & ATTR_SIZE) {
vattr.va_mask |= XFS_AT_SIZE;
vattr.va_size = attr->ia_size;
}
if (ia_valid & ATTR_ATIME) {
vattr.va_mask |= XFS_AT_ATIME;
vattr.va_atime = attr->ia_atime;
inode->i_atime = attr->ia_atime;
}
if (ia_valid & ATTR_MTIME) {
vattr.va_mask |= XFS_AT_MTIME;
vattr.va_mtime = attr->ia_mtime;
}
if (ia_valid & ATTR_CTIME) {
vattr.va_mask |= XFS_AT_CTIME;
vattr.va_ctime = attr->ia_ctime;
}
if (ia_valid & ATTR_MODE) {
vattr.va_mask |= XFS_AT_MODE;
vattr.va_mode = attr->ia_mode;
if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
inode->i_mode &= ~S_ISGID;
}
if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET))
flags |= ATTR_UTIME;
#ifdef ATTR_NO_BLOCK
if ((ia_valid & ATTR_NO_BLOCK))
flags |= ATTR_NONBLOCK;
#endif
error = xfs_setattr(XFS_I(inode), &vattr, flags, NULL);
if (likely(!error))
vn_revalidate(vn_from_inode(inode));
return -error;
}
STATIC int
linvfs_getattr(
struct vfsmount *mnt,
struct dentry *dentry,
struct kstat *stat)
{
struct inode *inode = dentry->d_inode;
vnode_t *vp = LINVFS_GET_VP(inode);
int error = 0;
if (unlikely(vp->v_flag & VMODIFIED))
error = vn_revalidate(vp);
if (!error)
generic_fillattr(inode, stat);
return 0;
}
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
linvfs_setattr(
struct dentry *dentry,
struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
unsigned int ia_valid = attr->ia_valid;
vnode_t *vp = LINVFS_GET_VP(inode);
vattr_t vattr;
int flags = 0;
int error;
memset(&vattr, 0, sizeof(vattr_t));
if (ia_valid & ATTR_UID) {
vattr.va_mask |= XFS_AT_UID;
vattr.va_uid = attr->ia_uid;
}
if (ia_valid & ATTR_GID) {
vattr.va_mask |= XFS_AT_GID;
vattr.va_gid = attr->ia_gid;
}
if (ia_valid & ATTR_SIZE) {
vattr.va_mask |= XFS_AT_SIZE;
vattr.va_size = attr->ia_size;
}
if (ia_valid & ATTR_ATIME) {
vattr.va_mask |= XFS_AT_ATIME;
vattr.va_atime.tv_sec = attr->ia_atime;
vattr.va_atime.tv_nsec = 0;
}
if (ia_valid & ATTR_MTIME) {
vattr.va_mask |= XFS_AT_MTIME;
vattr.va_mtime.tv_sec = attr->ia_mtime;
vattr.va_mtime.tv_nsec = 0;
}
if (ia_valid & ATTR_CTIME) {
vattr.va_mask |= XFS_AT_CTIME;
vattr.va_ctime.tv_sec = attr->ia_ctime;
vattr.va_ctime.tv_nsec = 0;
}
if (ia_valid & ATTR_MODE) {
vattr.va_mask |= XFS_AT_MODE;
vattr.va_mode = attr->ia_mode;
if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
inode->i_mode &= ~S_ISGID;
}
if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET))
flags = ATTR_UTIME;
VOP_SETATTR(vp, &vattr, flags, NULL, error);
if (error)
return(-error); /* Positive error up from XFS */
if (ia_valid & ATTR_SIZE) {
error = vmtruncate(inode, attr->ia_size);
}
if (!error) {
vn_revalidate(vp);
}
return error;
}
