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autofs-5.1.7 - set offset parent in update_offset_entry()
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From: Ian Kent <raven@themaw.net>
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Avoid the list traversal in cache_set_parents() by setting the
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offset parent when updating the offset.
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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/automount.h | 2 +-
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lib/cache.c | 26 +++++++++++---------------
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modules/parse_sun.c | 5 ++++-
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4 files changed, 17 insertions(+), 17 deletions(-)
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--- autofs-5.1.4.orig/CHANGELOG
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+++ autofs-5.1.4/CHANGELOG
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@@ -7,6 +7,7 @@
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- eliminate cache_lookup_offset() usage.
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- fix is mounted check on non existent path.
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- simplify cache_get_parent().
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+- set offset parent in update_offset_entry().
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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/automount.h
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+++ autofs-5.1.4/include/automount.h
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@@ -207,7 +207,7 @@ struct mapent *cache_partial_match_wild(
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int cache_add(struct mapent_cache *mc, struct map_source *ms, const char *key, const char *mapent, time_t age);
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int cache_update_offset(struct mapent_cache *mc, const char *mkey, const char *key, const char *mapent, time_t age);
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void cache_update_negative(struct mapent_cache *mc, struct map_source *ms, const char *key, time_t timeout);
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-int cache_set_parents(struct mapent *mm);
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+int cache_set_offset_parent(struct mapent_cache *mc, const char *offset);
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int cache_update(struct mapent_cache *mc, struct map_source *ms, const char *key, const char *mapent, time_t age);
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int cache_delete(struct mapent_cache *mc, const char *key);
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int cache_delete_offset(struct mapent_cache *mc, const char *key);
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--- autofs-5.1.4.orig/lib/cache.c
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+++ autofs-5.1.4/lib/cache.c
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@@ -834,25 +834,21 @@ static struct mapent *get_offset_parent(
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return NULL;
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}
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-int cache_set_parents(struct mapent *mm)
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+int cache_set_offset_parent(struct mapent_cache *mc, const char *offset)
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{
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- struct list_head *multi_head, *p;
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- struct mapent *this;
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+ struct mapent *this, *parent;
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- if (!mm->multi)
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+ this = cache_lookup_distinct(mc, offset);
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+ if (!this)
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+ return 0;
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+ if (!this->multi)
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return 0;
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- multi_head = &mm->multi->multi_list;
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-
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- list_for_each(p, multi_head) {
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- struct mapent *parent;
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- this = list_entry(p, struct mapent, multi_list);
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- parent = get_offset_parent(mm->mc, this->key);
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- if (parent)
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- this->parent = parent;
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- else
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- this->parent = mm->multi;
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- }
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+ parent = get_offset_parent(mc, offset);
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+ if (parent)
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+ this->parent = parent;
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+ else
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+ this->parent = this->multi;
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return 1;
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}
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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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@@ -861,6 +861,10 @@ update_offset_entry(struct autofs_point
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}
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ret = cache_update_offset(mc, name, m_key, m_mapent, age);
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+
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+ if (!cache_set_offset_parent(mc, m_key))
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+ error(ap->logopt, "failed to set offset parent");
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+
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if (ret == CHE_DUPLICATE) {
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warn(ap->logopt, MODPREFIX
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"syntax error or duplicate offset %s -> %s", path, loc);
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@@ -1615,7 +1619,6 @@ dont_expand:
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*/
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if (me == me->multi)
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clean_stale_multi_triggers(ap, me, NULL, NULL);
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- cache_set_parents(me);
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rv = mount_subtree(ap, me, name, NULL, options, ctxt);
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