Esempi in C++ (Cpp) per dmu_objset_snapshot

Esempio n. 1

File: zfs_ctldir.c Progetto: EW1/zfs

/* 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);
}

Esempio n. 2

File: zfs_ctldir.c Progetto: Logout22/rumpkernel-netbsd-src

/* ARGSUSED */
static int
zfsctl_snapdir_mkdir(vnode_t *dvp, char *dirname, vattr_t *vap, vnode_t  **vpp,
    cred_t *cr, caller_context_t *cc, int flags, vsecattr_t *vsecp)
{
	zfsvfs_t *zfsvfs = dvp->v_vfsp->vfs_data;
	char name[MAXNAMELEN];
	int err;
	static enum symfollow follow = NO_FOLLOW;
	static enum uio_seg seg = UIO_SYSSPACE;

	if (snapshot_namecheck(dirname, NULL, NULL) != 0)
		return (EILSEQ);

	dmu_objset_name(zfsvfs->z_os, name);

	*vpp = NULL;

	err = zfs_secpolicy_snapshot_perms(name, cr);
	if (err)
		return (err);

	if (err == 0) {
		err = dmu_objset_snapshot(name, dirname, NULL, B_FALSE);
		if (err)
			return (err);
		err = lookupnameat(dirname, seg, follow, NULL, vpp, dvp);
	}

	return (err);
}