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| author |   Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2010-02-11 09:43:20 +0900 |
|---|---|---|
| committer |   James Morris <jmorris@namei.org> | 2010-02-15 09:00:21 +1100 |
| commit | ec8e6a4e062e2edebef91e930c20572c9f4c0dda (patch) | |
| tree | 1c48fb2aa2220b3bdc138e0fb33e1ac632d0dffe /security/tomoyo/common.h | |
| parent | TOMOYO: Merge headers. (diff) | |
| download | linux-dev-ec8e6a4e062e2edebef91e930c20572c9f4c0dda.tar.xz linux-dev-ec8e6a4e062e2edebef91e930c20572c9f4c0dda.zip | |
TOMOYO: Add refcounter on domain structure.
Add refcounter to "struct tomoyo_domain_info" since garbage collector needs to
determine whether this struct is referred by "struct cred"->security or not.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/tomoyo/common.h')
| -rw-r--r-- | security/tomoyo/common.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h index f6aff59b0885..521b4b5addaf 100644 --- a/security/tomoyo/common.h +++ b/security/tomoyo/common.h @@ -234,6 +234,10 @@ struct tomoyo_acl_info { * name of the domain to be created was too long or it could not allocate * memory. If set to true, more than one process continued execve() * without domain transition. + * (9) "users" is an atomic_t that holds how many "struct cred"->security + * are referring this "struct tomoyo_domain_info". If is_deleted == true + * and users == 0, this struct will be kfree()d upon next garbage + * collection. * * A domain's lifecycle is an analogy of files on / directory. * Multiple domains with the same domainname cannot be created (as with @@ -252,6 +256,7 @@ struct tomoyo_domain_info { bool quota_warned; /* Quota warnning flag. */ bool ignore_global_allow_read; /* Ignore "allow_read" flag. */ bool transition_failed; /* Domain transition failed flag. */ + atomic_t users; /* Number of referring credentials. */ }; /* |