From e92bfb0db6f2e6a30da30d3a4aa505eb69868243 Mon Sep 17 00:00:00 2001 From: avg Date: Thu, 23 Mar 2017 08:22:27 +0000 Subject: MFC r315076: zfs: provide a special vptocnp method for the .zfs vnode --- .../opensolaris/uts/common/fs/zfs/zfs_ctldir.c | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'sys/cddl') diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c index 4c2e3e9..855dd87 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c @@ -706,6 +706,28 @@ zfsctl_root_readdir(ap) return (0); } +static int +zfsctl_root_vptocnp(struct vop_vptocnp_args *ap) +{ + static const char dotzfs_name[4] = ".zfs"; + vnode_t *dvp; + int error; + + if (*ap->a_buflen < sizeof (dotzfs_name)) + return (SET_ERROR(ENOMEM)); + + error = vn_vget_ino_gen(ap->a_vp, zfsctl_fs_root_vnode, NULL, + LK_SHARED, &dvp); + if (error != 0) + return (SET_ERROR(error)); + + VOP_UNLOCK(dvp, 0); + *ap->a_vpp = dvp; + *ap->a_buflen -= sizeof (dotzfs_name); + bcopy(dotzfs_name, ap->a_buf + *ap->a_buflen, sizeof (dotzfs_name)); + return (0); +} + static struct vop_vector zfsctl_ops_root = { .vop_default = &default_vnodeops, .vop_open = zfsctl_common_open, @@ -719,6 +741,7 @@ static struct vop_vector zfsctl_ops_root = { .vop_reclaim = zfsctl_common_reclaim, .vop_fid = zfsctl_common_fid, .vop_print = zfsctl_common_print, + .vop_vptocnp = zfsctl_root_vptocnp, }; static int -- cgit v1.1