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| 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/common.h | |
| parent | 778c4a4d60d932c1df6d270dcbc88365823c3963 (diff) | |
| download | linux-f9732ea145886786a6f8b0493bc2239e70cbacdb.tar.bz2 | |
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/common.h')
| -rw-r--r-- | security/tomoyo/common.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h index 1a19ad3e67ea..a0212fbf60fb 100644 --- a/security/tomoyo/common.h +++ b/security/tomoyo/common.h @@ -52,6 +52,9 @@ #define TOMOYO_EXEC_TMPSIZE 4096 +/* Garbage collector is trying to kfree() this element. */ +#define TOMOYO_GC_IN_PROGRESS -1 + /* Profile number is an integer between 0 and 255. */ #define TOMOYO_MAX_PROFILES 256 @@ -398,7 +401,7 @@ enum tomoyo_pref_index { /* Common header for holding ACL entries. */ struct tomoyo_acl_head { struct list_head list; - bool is_deleted; + s8 is_deleted; /* true or false or TOMOYO_GC_IN_PROGRESS */ } __packed; /* Common header for shared entries. */ @@ -665,7 +668,7 @@ struct tomoyo_condition { struct tomoyo_acl_info { struct list_head list; struct tomoyo_condition *cond; /* Maybe NULL. */ - bool is_deleted; + s8 is_deleted; /* true or false or TOMOYO_GC_IN_PROGRESS */ u8 type; /* One of values in "enum tomoyo_acl_entry_type_index". */ } __packed; |