autofs/SOURCES/autofs-5.1.7-use-mapent-tree-root-for-tree_mapent_add_node.patch

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2021-11-04 00:41:29 +00:00
autofs-5.1.7 - use mapent tree root for tree_mapent_add_node()
From: Ian Kent <raven@themaw.net>
Since we need to create the offset tree after adding the offset entries
to the mapent cache lookup the root mapent once and use it when calling
tree_mapent_add_node() instread of doing a cache lookup on every node
addition.
Signed-off-by: Ian Kent <raven@themaw.net>
---
CHANGELOG | 1 +
include/mounts.h | 2 +-
lib/mounts.c | 24 +++++-------------------
modules/parse_sun.c | 11 ++++++++++-
4 files changed, 17 insertions(+), 21 deletions(-)
--- autofs-5.1.7.orig/CHANGELOG
+++ autofs-5.1.7/CHANGELOG
@@ -70,6 +70,7 @@
- fix amd section mounts map reload.
- fix amd hosts mount expire.
- fix offset entries order.
+- use mapent tree root for tree_mapent_add_node().
25/01/2021 autofs-5.1.7
- make bind mounts propagation slave by default.
--- autofs-5.1.7.orig/include/mounts.h
+++ autofs-5.1.7/include/mounts.h
@@ -170,7 +170,7 @@ void mnts_get_expire_list(struct list_he
void mnts_put_expire_list(struct list_head *mnts);
void mnts_set_mounted_mount(struct autofs_point *ap, const char *name, unsigned int flags);
struct tree_node *tree_mapent_root(struct mapent *me);
-int tree_mapent_add_node(struct mapent_cache *mc, const char *base, const char *key);
+int tree_mapent_add_node(struct mapent_cache *mc, struct tree_node *root, const char *key);
int tree_mapent_delete_offsets(struct mapent_cache *mc, const char *key);
void tree_mapent_cleanup_offsets(struct mapent *oe);
int tree_mapent_mount_offsets(struct mapent *oe, int nonstrict);
--- autofs-5.1.7.orig/lib/mounts.c
+++ autofs-5.1.7/lib/mounts.c
@@ -1519,27 +1519,13 @@ static void tree_mapent_free(struct tree
}
int tree_mapent_add_node(struct mapent_cache *mc,
- const char *root, const char *key)
+ struct tree_node *root, const char *key)
{
unsigned int logopt = mc->ap->logopt;
- struct tree_node *tree, *n;
- struct mapent *base;
+ struct tree_node *n;
struct mapent *parent;
struct mapent *me;
- base = cache_lookup_distinct(mc, root);
- if (!base) {
- error(logopt,
- "failed to find multi-mount root for key %s", key);
- return 0;
- }
-
- if (MAPENT_ROOT(base) != MAPENT_NODE(base)) {
- error(logopt, "key %s is not multi-mount root", root);
- return 0;
- }
- tree = MAPENT_ROOT(base);
-
me = cache_lookup_distinct(mc, key);
if (!me) {
error(logopt,
@@ -1547,16 +1533,16 @@ int tree_mapent_add_node(struct mapent_c
return 0;
}
- n = tree_add_node(tree, me);
+ n = tree_add_node(root, me);
if (!n)
return 0;
- MAPENT_SET_ROOT(me, tree)
+ MAPENT_SET_ROOT(me, root)
/* Set the subtree parent */
parent = cache_get_offset_parent(mc, key);
if (!parent)
- MAPENT_SET_PARENT(me, tree)
+ MAPENT_SET_PARENT(me, root)
else
MAPENT_SET_PARENT(me, MAPENT_NODE(parent))
--- autofs-5.1.7.orig/modules/parse_sun.c
+++ autofs-5.1.7/modules/parse_sun.c
@@ -1536,8 +1536,17 @@ dont_expand:
} while (*p == '/' || (*p == '"' && *(p + 1) == '/'));
cache_writelock(mc);
+ me = cache_lookup_distinct(mc, name);
+ if (!me) {
+ cache_unlock(mc);
+ free(options);
+ free(pmapent);
+ cleanup_offset_entries(ap, mc, &offsets);
+ pthread_setcancelstate(cur_state, NULL);
+ return 1;
+ }
list_for_each_entry_safe(oe, tmp, &offsets, work) {
- if (!tree_mapent_add_node(mc, name, oe->key))
+ if (!tree_mapent_add_node(mc, MAPENT_ROOT(me), oe->key))
error(ap->logopt, "failed to add offset %s to tree", oe->key);
list_del_init(&oe->work);
}