diff options
| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2011-09-25 17:50:23 +0900 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2011-09-26 10:46:20 +1000 |
| commit | f9732ea145886786a6f8b0493bc2239e70cbacdb (patch) | |
| tree | e29b2441cc916a174d7cd0b03cd18986ae545250 /security/tomoyo/domain.c | |
| parent | 778c4a4d60d932c1df6d270dcbc88365823c3963 (diff) | |
| download | blackbird-op-linux-f9732ea145886786a6f8b0493bc2239e70cbacdb.tar.gz blackbird-op-linux-f9732ea145886786a6f8b0493bc2239e70cbacdb.zip | |
TOMOYO: Simplify garbage collector.
When TOMOYO started using garbage collector at commit 847b173e "TOMOYO: Add
garbage collector.", we waited for close() before kfree(). Thus, elements to be
kfree()d were queued up using tomoyo_gc_list list.
But it turned out that tomoyo_element_linked_by_gc() tends to choke garbage
collector when certain pattern of entries are queued.
Since garbage collector is no longer waiting for close() since commit 2e503bbb
"TOMOYO: Fix lockdep warning.", we can remove tomoyo_gc_list list and
tomoyo_element_linked_by_gc() by doing sequential processing.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/tomoyo/domain.c')
| -rw-r--r-- | security/tomoyo/domain.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c index 70acf7aebbda..da16dfeed728 100644 --- a/security/tomoyo/domain.c +++ b/security/tomoyo/domain.c @@ -39,6 +39,8 @@ int tomoyo_update_policy(struct tomoyo_acl_head *new_entry, const int size, if (mutex_lock_interruptible(&tomoyo_policy_lock)) return -ENOMEM; list_for_each_entry_rcu(entry, list, list) { + if (entry->is_deleted == TOMOYO_GC_IN_PROGRESS) + continue; if (!check_duplicate(entry, new_entry)) continue; entry->is_deleted = param->is_delete; @@ -115,6 +117,8 @@ int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size, if (mutex_lock_interruptible(&tomoyo_policy_lock)) goto out; list_for_each_entry_rcu(entry, list, list) { + if (entry->is_deleted == TOMOYO_GC_IN_PROGRESS) + continue; if (!tomoyo_same_acl_head(entry, new_entry) || !check_duplicate(entry, new_entry)) continue; |
