Add build system

[zfs.git] / module / zfs / zfs_ctldir.c

diff --git a/module/zfs/zfs_ctldir.c b/module/zfs/zfs_ctldir.c
index 27c2c51..815f889 100644 (file)
--- a/module/zfs/zfs_ctldir.c
+++ b/module/zfs/zfs_ctldir.c
@@ -19,8 +19,7 @@
  * CDDL HEADER END
  */
 /*
- * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
+ * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  */
 
 /*
@@ -186,6 +185,17 @@ zfsctl_fini(void)
        zfsctl_ops_shares_dir = NULL;
 }
 
+boolean_t
+zfsctl_is_node(vnode_t *vp)
+{
+       return (vn_matchops(vp, zfsctl_ops_root) ||
+           vn_matchops(vp, zfsctl_ops_snapdir) ||
+           vn_matchops(vp, zfsctl_ops_snapshot) ||
+           vn_matchops(vp, zfsctl_ops_shares) ||
+           vn_matchops(vp, zfsctl_ops_shares_dir));
+
+}
+
 /*
  * Return the inode number associated with the 'snapshot' or
  * 'shares' directory.
@@ -215,6 +225,7 @@ zfsctl_create(zfsvfs_t *zfsvfs)
 {
        vnode_t *vp, *rvp;
        zfsctl_node_t *zcp;
+       uint64_t crtime[2];
 
        ASSERT(zfsvfs->z_ctldir == NULL);
 
@@ -225,7 +236,9 @@ zfsctl_create(zfsvfs_t *zfsvfs)
        zcp->zc_id = ZFSCTL_INO_ROOT;
 
        VERIFY(VFS_ROOT(zfsvfs->z_vfs, &rvp) == 0);
-       ZFS_TIME_DECODE(&zcp->zc_cmtime, VTOZ(rvp)->z_phys->zp_crtime);
+       VERIFY(0 == sa_lookup(VTOZ(rvp)->z_sa_hdl, SA_ZPL_CRTIME(zfsvfs),
+           &crtime, sizeof (crtime)));
+       ZFS_TIME_DECODE(&zcp->zc_cmtime, crtime);
        VN_RELE(rvp);
 
        /*
@@ -311,14 +324,13 @@ zfsctl_common_access(vnode_t *vp, int mode, int flags, cred_t *cr,
 static void
 zfsctl_common_getattr(vnode_t *vp, vattr_t *vap)
 {
-       zfsctl_node_t   *zcp = vp->v_data;
        timestruc_t     now;
 
        vap->va_uid = 0;
        vap->va_gid = 0;
        vap->va_rdev = 0;
        /*
-        * We are a purly virtual object, so we have no
+        * We are a purely virtual object, so we have no
         * blocksize or allocated blocks.
         */
        vap->va_blksize = 0;
@@ -333,7 +345,6 @@ zfsctl_common_getattr(vnode_t *vp, vattr_t *vap)
         */
        gethrestime(&now);
        vap->va_atime = now;
-       vap->va_mtime = vap->va_ctime = zcp->zc_cmtime;
 }
 
 /*ARGSUSED*/
@@ -416,10 +427,12 @@ zfsctl_root_getattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr,
     caller_context_t *ct)
 {
        zfsvfs_t *zfsvfs = vp->v_vfsp->vfs_data;
+       zfsctl_node_t *zcp = vp->v_data;
 
        ZFS_ENTER(zfsvfs);
        vap->va_nodeid = ZFSCTL_INO_ROOT;
        vap->va_nlink = vap->va_size = NROOT_ENTRIES;
+       vap->va_mtime = vap->va_ctime = zcp->zc_cmtime;
 
        zfsctl_common_getattr(vp, vap);
        ZFS_EXIT(zfsvfs);
@@ -577,7 +590,7 @@ zfsctl_rename_snap(zfsctl_snapdir_t *sdp, zfs_snapentry_t *sep, const char *nm)
        ASSERT3U(strlen(newpath) + strlen(nm), <, sizeof (newpath));
        (void) strcat(newpath, nm);
        refstr_rele(pathref);
-       vfs_setmntpoint(vfsp, newpath);
+       vfs_setmntpoint(vfsp, newpath, 0);
 
        pathref = vfs_getresource(vfsp);
        (void) strncpy(newpath, refstr_value(pathref), sizeof (newpath));
@@ -586,7 +599,7 @@ zfsctl_rename_snap(zfsctl_snapdir_t *sdp, zfs_snapentry_t *sep, const char *nm)
        ASSERT3U(strlen(newpath) + strlen(nm), <, sizeof (newpath));
        (void) strcat(newpath, nm);
        refstr_rele(pathref);
-       vfs_setresource(vfsp, newpath);
+       vfs_setresource(vfsp, newpath, 0);
 
        vfs_unlock(vfsp);
 }
@@ -700,7 +713,7 @@ zfsctl_snapdir_remove(vnode_t *dvp, char *name, vnode_t *cwd, cred_t *cr,
                if (err)
                        avl_add(&sdp->sd_snaps, sep);
                else
-                       err = dmu_objset_destroy(snapname);
+                       err = dmu_objset_destroy(snapname, B_FALSE);
        } else {
                err = ENOENT;
        }
@@ -736,7 +749,8 @@ zfsctl_snapdir_mkdir(vnode_t *dvp, char *dirname, vattr_t *vap, vnode_t  **vpp,
                return (err);
 
        if (err == 0) {
-               err = dmu_objset_snapshot(name, dirname, NULL, B_FALSE);
+               err = dmu_objset_snapshot(name, dirname, NULL, NULL,
+                   B_FALSE, B_FALSE, -1);
                if (err)
                        return (err);
                err = lookupnameat(dirname, seg, follow, NULL, vpp, dvp);
@@ -853,8 +867,7 @@ zfsctl_snapdir_lookup(vnode_t *dvp, char *nm, vnode_t **vpp, pathname_t *pnp,
                 */
                return (err == EILSEQ ? ENOENT : err);
        }
-       if (dmu_objset_open(snapname, DMU_OST_ZFS,
-           DS_MODE_USER | DS_MODE_READONLY, &snap) != 0) {
+       if (dmu_objset_hold(snapname, FTAG, &snap) != 0) {
                mutex_exit(&sdp->sd_lock);
                ZFS_EXIT(zfsvfs);
                return (ENOENT);
@@ -866,7 +879,7 @@ zfsctl_snapdir_lookup(vnode_t *dvp, char *nm, vnode_t **vpp, pathname_t *pnp,
        *vpp = sep->se_root = zfsctl_snapshot_mknode(dvp, dmu_objset_id(snap));
        avl_insert(&sdp->sd_snaps, sep, where);
 
-       dmu_objset_close(snap);
+       dmu_objset_rele(snap, FTAG);
 domount:
        mountpoint_len = strlen(refstr_value(dvp->v_vfsp->vfs_mntpt)) +
            strlen("/.zfs/snapshot/") + strlen(nm) + 1;
@@ -1102,6 +1115,7 @@ zfsctl_snapdir_getattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr,
        zfsctl_common_getattr(vp, vap);
        vap->va_nodeid = gfs_file_inode(vp);
        vap->va_nlink = vap->va_size = avl_numnodes(&sdp->sd_snaps) + 2;
+       vap->va_ctime = vap->va_mtime = dmu_objset_snap_cmtime(zfsvfs->z_os);
        ZFS_EXIT(zfsvfs);
 
        return (0);