Commit a05fb6cc authored by Eric Paris's avatar Eric Paris

audit: do not get and put just to free a watch

deleting audit watch rules is not currently done under audit_filter_mutex.
It was done this way because we could not hold the mutex during inotify
manipulation.  Since we are using fsnotify we don't need to do the extra
get/put pair nor do we need the private list on which to store the parents
while they are about to be freed.
Signed-off-by: default avatarEric Paris <>
parent e118e9c5
......@@ -108,8 +108,7 @@ extern void audit_put_watch(struct audit_watch *watch);
extern void audit_get_watch(struct audit_watch *watch);
extern int audit_to_watch(struct audit_krule *krule, char *path, int len, u32 op);
extern int audit_add_watch(struct audit_krule *krule, struct list_head **list);
extern void audit_remove_watch_rule(struct audit_krule *krule, struct list_head *list);
extern void audit_watch_inotify_unregister(struct list_head *in_list);
extern void audit_remove_watch_rule(struct audit_krule *krule);
extern char *audit_watch_path(struct audit_watch *watch);
extern int audit_watch_compare(struct audit_watch *watch, unsigned long ino, dev_t dev);
extern struct audit_entry *audit_dupe_rule(struct audit_krule *old);
......@@ -55,7 +55,6 @@ struct audit_watch {
struct audit_parent {
struct list_head ilist; /* tmp list used to free parents */
struct list_head watches; /* anchor for audit_watch->wlist */
struct fsnotify_mark_entry mark; /* fsnotify mark on the inode */
......@@ -356,20 +355,6 @@ static void audit_remove_parent_watches(struct audit_parent *parent)
/* Unregister inotify watches for parents on in_list.
* Generates an FS_IGNORED event. */
void audit_watch_inotify_unregister(struct list_head *in_list)
struct audit_parent *p, *n;
list_for_each_entry_safe(p, n, in_list, ilist) {
/* matches the get in audit_remove_watch_rule() */
/* Get path information necessary for adding watches. */
static int audit_get_nd(char *path, struct nameidata **ndp, struct nameidata **ndw)
......@@ -502,7 +487,7 @@ error:
void audit_remove_watch_rule(struct audit_krule *krule, struct list_head *list)
void audit_remove_watch_rule(struct audit_krule *krule)
struct audit_watch *watch = krule->watch;
struct audit_parent *parent = watch->parent;
......@@ -513,15 +498,9 @@ void audit_remove_watch_rule(struct audit_krule *krule, struct list_head *list)
if (list_empty(&parent->watches)) {
/* Put parent on the un-registration list.
* Grab a reference before releasing
* audit_filter_mutex, to be released in
* audit_watch_inotify_unregister().
* If filesystem is going away, just leave
* the sucker alone, eviction will take
* care of it. */
list_add(&parent->ilist, list);
......@@ -945,7 +945,6 @@ static inline int audit_del_rule(struct audit_entry *entry)
struct audit_watch *watch = entry->;
struct audit_tree *tree = entry->rule.tree;
struct list_head *list;
int ret = 0;
int dont_count = 0;
......@@ -965,7 +964,7 @@ static inline int audit_del_rule(struct audit_entry *entry)
if (e->
audit_remove_watch_rule(&e->rule, &inotify_unregister_list);
if (e->rule.tree)
......@@ -983,9 +982,6 @@ static inline int audit_del_rule(struct audit_entry *entry)
if (!list_empty(&inotify_unregister_list))
if (watch)
audit_put_watch(watch); /* match initial get */
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment