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autofs-5.1.7 - eliminate redundant cache lookup in tree_mapent_add_node()
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From: Ian Kent <raven@themaw.net>
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Since we need to create the offset tree after adding the offset entries
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to the mapent cache (from a list.h list) there's no need to lookup the
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mapent in tree_mapent_add_node() and validate it. Just use it directly
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when calling tree_mapent_add_node() and avoid a cache lookup on every
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node addition.
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Signed-off-by: Ian Kent <raven@themaw.net>
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---
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CHANGELOG | 1 +
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include/mounts.h | 2 +-
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lib/mounts.c | 13 ++-----------
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modules/parse_sun.c | 2 +-
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4 files changed, 5 insertions(+), 13 deletions(-)
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--- autofs-5.1.4.orig/CHANGELOG
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+++ autofs-5.1.4/CHANGELOG
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@@ -70,6 +70,7 @@
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- fix amd hosts mount expire.
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- fix offset entries order.
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- use mapent tree root for tree_mapent_add_node().
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+- eliminate redundant cache lookup in tree_mapent_add_node().
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xx/xx/2018 autofs-5.1.5
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- fix flag file permission.
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--- autofs-5.1.4.orig/include/mounts.h
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+++ autofs-5.1.4/include/mounts.h
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@@ -170,7 +170,7 @@ void mnts_get_expire_list(struct list_he
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void mnts_put_expire_list(struct list_head *mnts);
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void mnts_set_mounted_mount(struct autofs_point *ap, const char *name, unsigned int flags);
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struct tree_node *tree_mapent_root(struct mapent *me);
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-int tree_mapent_add_node(struct mapent_cache *mc, struct tree_node *root, const char *key);
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+int tree_mapent_add_node(struct mapent_cache *mc, struct tree_node *root, struct mapent *me);
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int tree_mapent_delete_offsets(struct mapent_cache *mc, const char *key);
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void tree_mapent_cleanup_offsets(struct mapent *oe);
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int tree_mapent_mount_offsets(struct mapent *oe, int nonstrict);
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--- autofs-5.1.4.orig/lib/mounts.c
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+++ autofs-5.1.4/lib/mounts.c
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@@ -1519,19 +1519,10 @@ static void tree_mapent_free(struct tree
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}
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int tree_mapent_add_node(struct mapent_cache *mc,
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- struct tree_node *root, const char *key)
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+ struct tree_node *root, struct mapent *me)
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{
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- unsigned int logopt = mc->ap->logopt;
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struct tree_node *n;
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struct mapent *parent;
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- struct mapent *me;
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-
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- me = cache_lookup_distinct(mc, key);
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- if (!me) {
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- error(logopt,
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- "failed to find key %s of multi-mount", key);
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- return 0;
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- }
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n = tree_add_node(root, me);
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if (!n)
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@@ -1540,7 +1531,7 @@ int tree_mapent_add_node(struct mapent_c
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MAPENT_SET_ROOT(me, root)
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/* Set the subtree parent */
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- parent = cache_get_offset_parent(mc, key);
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+ parent = cache_get_offset_parent(mc, me->key);
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if (!parent)
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MAPENT_SET_PARENT(me, root)
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else
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--- autofs-5.1.4.orig/modules/parse_sun.c
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+++ autofs-5.1.4/modules/parse_sun.c
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@@ -1548,7 +1548,7 @@ dont_expand:
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return 1;
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}
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list_for_each_entry_safe(oe, tmp, &offsets, work) {
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- if (!tree_mapent_add_node(mc, MAPENT_ROOT(me), oe->key))
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+ if (!tree_mapent_add_node(mc, MAPENT_ROOT(me), oe))
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error(ap->logopt, "failed to add offset %s to tree", oe->key);
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list_del_init(&oe->work);
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}
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