/* ARGSUSED */
int
zfsctl_snapdir_mkdir(struct inode *dip, char *dirname, vattr_t *vap,
struct inode **ipp, cred_t *cr, int flags)
{
zfs_sb_t *zsb = ITOZSB(dip);
char *dsname;
int error;
dsname = kmem_alloc(MAXNAMELEN, KM_SLEEP);
if (snapshot_namecheck(dirname, NULL, NULL) != 0) {
error = EILSEQ;
goto out;
}
dmu_objset_name(zsb->z_os, dsname);
error = zfs_secpolicy_snapshot_perms(dsname, cr);
if (error)
goto out;
if (error == 0) {
error = dmu_objset_snapshot(dsname, dirname,
NULL, NULL, B_FALSE, B_FALSE, -1);
if (error)
goto out;
error = zfsctl_snapdir_lookup(dip, dirname, ipp,
0, cr, NULL, NULL);
}
out:
kmem_free(dsname, MAXNAMELEN);
return (error);
}
zpl_snapdir_lookup(struct inode *dip, struct dentry *dentry,
unsigned int flags)
#endif
{
fstrans_cookie_t cookie;
cred_t *cr = CRED();
struct inode *ip = NULL;
int error;
crhold(cr);
cookie = spl_fstrans_mark();
error = -zfsctl_snapdir_lookup(dip, dname(dentry), &ip,
0, cr, NULL, NULL);
ASSERT3S(error, <=, 0);
spl_fstrans_unmark(cookie);
crfree(cr);
if (error && error != -ENOENT)
return (ERR_PTR(error));
ASSERT(error == 0 || ip == NULL);
d_clear_d_op(dentry);
d_set_d_op(dentry, &zpl_dops_snapdirs);
#ifdef HAVE_AUTOMOUNT
dentry->d_flags |= DCACHE_NEED_AUTOMOUNT;
#endif
return (d_splice_alias(ip, dentry));
}
