sys/kern/vfs_lookup.c

79  * ISRESTARTED flag which signals the underlying lookup code to change the root
101 SDT_PROBE_DEFINE4(vfs, namei, lookup, entry, "struct vnode *", "char *",
103 SDT_PROBE_DEFINE4(vfs, namei, lookup, return, "int", "struct vnode *", "bool",
188     "enables \"..\" components in path lookup in capability mode");
192     "enables \"..\" components in path lookup in capability mode "
234  * lookup to succeed if the resulting directory was already traversed
420 	SDT_PROBE4(vfs, namei, lookup, entry, *dpp, cnp->cn_pnbuf,
484 	SDT_PROBE4(vfs, namei, lookup, return, 0, ndp->ni_vp, false, ndp);
488 	SDT_PROBE4(vfs, namei, lookup, return, error, NULL, false, ndp);
577  *		call lookup to search path.
633 		SDT_PROBE4(vfs, namei, lookup, return, error, NULL,
688 			SDT_PROBE4(vfs, namei, lookup, return, ENOENT, NULL,
701 	 * Locked lookup.
723 			SDT_PROBE4(vfs, namei, lookup, return, error,
741 			 * Reset the lookup to start from the real root without
759 	SDT_PROBE4(vfs, namei, lookup, return, error, NULL, false, ndp);
994  * Overall outline of lookup:
1026 	int rdonly;			/* lookup read-only flag bit */
1042 	 * pathname to be deleted from the cache and the full lookup
1045 	 * during the full lookup, for instance UFS sets dp->i_offset.
1174 	 * 0. If doing a capability lookup and lookup_cap_dotdot is
1187 	 * 5. If doing a capability lookup and lookup_cap_dotdot is
1188 	 *    enabled, return ENOTCAPABLE if the lookup would escape
1191 	 *    result of dotdot lookup.
1263 	ASSERT_VOP_LOCKED(dp, "lookup");
1386 	    ("lookup: invalid path state."));
1455 	 * Because of shared lookup we may have the vnode shared locked, but
1490  * relookup - lookup a path name component
1491  *    Used by lookup to re-acquire things.
1498 	int rdonly;			/* lookup read-only flag bit */
1524 		 * Support only LOOKUP for "/" because lookup()
1535 			panic("lookup: SAVESTART");
1540 		panic ("relookup: lookup on dot-dot");
1610  * Validate the final state of ndp after the lookup.