Date: Thu, 5 Sep 2013 02:26:28 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Andriy Gapon <avg@FreeBSD.org> Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, src-committers@FreeBSD.org, Xin LI <delphij@FreeBSD.org> Subject: Re: svn commit: r254982 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <20130905002628.GB1388@garage.freebsd.pl> In-Reply-To: <521DAAB6.4010008@FreeBSD.org> References: <201308280039.r7S0dmRK082241@svn.freebsd.org> <521DAAB6.4010008@FreeBSD.org>
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--IiVenqGWf+H9Y6IX Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Aug 28, 2013 at 10:45:58AM +0300, Andriy Gapon wrote: > on 28/08/2013 03:39 Xin LI said the following: > > @@ -6250,8 +6250,11 @@ zfs_freebsd_rename(ap) > > ASSERT(ap->a_fcnp->cn_flags & (SAVENAME|SAVESTART)); > > ASSERT(ap->a_tcnp->cn_flags & (SAVENAME|SAVESTART)); > > =20 > > - error =3D zfs_rename(fdvp, ap->a_fcnp->cn_nameptr, tdvp, > > - ap->a_tcnp->cn_nameptr, ap->a_fcnp->cn_cred, NULL, 0); > > + if (fdvp->v_mount =3D=3D tdvp->v_mount) > > + error =3D zfs_rename(fdvp, ap->a_fcnp->cn_nameptr, tdvp, > > + ap->a_tcnp->cn_nameptr, ap->a_fcnp->cn_cred, NULL, 0); > > + else > > + error =3D EXDEV; > > =20 > > if (tdvp =3D=3D tvp) > > VN_RELE(tdvp); >=20 > So, I am still not sure if that is important or not, but this change stil= l misses > (tvp && (fvp->v_mount !=3D tvp->v_mount)) > check as found in ufs_rename. Yes, it is important. This is the case where 'fvp' represents a directory and 'tvp' also represents an existing directory. It is then possible that tdvp and tvp belong to different mount points. --=20 Pawel Jakub Dawidek http://www.wheelsystems.com FreeBSD committer http://www.FreeBSD.org Am I Evil? Yes, I Am! http://mobter.com --IiVenqGWf+H9Y6IX Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.20 (FreeBSD) iEYEARECAAYFAlInz7QACgkQForvXbEpPzRPygCg5RH/ZkMzwZvBcSgHRnWJoa7w uv8AoJmb2IuWt0BHa3FfWect2u/ZTuzH =gFKN -----END PGP SIGNATURE----- --IiVenqGWf+H9Y6IX--
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