Date: Thu, 21 May 2015 13:29:34 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r283233 - stable/10/usr.sbin/autofs Message-ID: <201505211329.t4LDTYJ5098971@svn.freebsd.org>
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Author: trasz Date: Thu May 21 13:29:34 2015 New Revision: 283233 URL: https://svnweb.freebsd.org/changeset/base/283233 Log: MFC r279845: Fix handling of direct maps, broken in r275756. Previously, running automount(8) would unmount direct map trigger nodes every second time. Sponsored by: The FreeBSD Foundation Modified: stable/10/usr.sbin/autofs/common.c Directory Properties: stable/10/ (props changed) Modified: stable/10/usr.sbin/autofs/common.c ============================================================================== --- stable/10/usr.sbin/autofs/common.c Thu May 21 13:26:52 2015 (r283232) +++ stable/10/usr.sbin/autofs/common.c Thu May 21 13:29:34 2015 (r283233) @@ -661,23 +661,25 @@ node_find_x(struct node *node, const cha char *tmp; size_t tmplen; - //log_debugx("looking up %s in %s", path, node->n_key); + //log_debugx("looking up %s in %s", path, node_path(node)); - tmp = node_path(node); - tmplen = strlen(tmp); - if (strncmp(tmp, path, tmplen) != 0) { - free(tmp); - return (NULL); - } - if (path[tmplen] != '/' && path[tmplen] != '\0') { - /* - * If we have two map entries like 'foo' and 'foobar', make - * sure the search for 'foobar' won't match 'foo' instead. - */ + if (!node_is_direct_key(node)) { + tmp = node_path(node); + tmplen = strlen(tmp); + if (strncmp(tmp, path, tmplen) != 0) { + free(tmp); + return (NULL); + } + if (path[tmplen] != '/' && path[tmplen] != '\0') { + /* + * If we have two map entries like 'foo' and 'foobar', make + * sure the search for 'foobar' won't match 'foo' instead. + */ + free(tmp); + return (NULL); + } free(tmp); - return (NULL); } - free(tmp); TAILQ_FOREACH(child, &node->n_children, n_next) { found = node_find_x(child, path); @@ -685,6 +687,9 @@ node_find_x(struct node *node, const cha return (found); } + if (node->n_parent == NULL || node_is_direct_key(node)) + return (NULL); + return (node); } @@ -693,9 +698,12 @@ node_find(struct node *root, const char { struct node *node; + assert(root->n_parent == NULL); + node = node_find_x(root, path); - if (node == root) - return (NULL); + if (node != NULL) + assert(node != root); + return (node); }
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