diff options
author | Serge E. Hallyn <serue@us.ibm.com> | 2010-05-03 17:23:15 -0400 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-21 12:37:31 -0400 |
commit | be867b194a3ae3c680c29521287ae49b4d44d420 (patch) | |
tree | 1b3ad125d02603c6a9cc4bb8ae518695d7c6a66d /lib | |
parent | f349cf34731c3b3eddbcd63cb04489aee2c405bd (diff) |
sysfs: Comment sysfs directory tagging logic
Add some in-line comments to explain the new infrastructure, which
was introduced to support sysfs directory tagging with namespaces.
I think an overall description someplace might be good too, but it
didn't really seem to fit into Documentation/filesystems/sysfs.txt,
which appears more geared toward users, rather than maintainers, of
sysfs.
(Tejun, please let me know if I can make anything clearer or failed
altogether to comment something that should be commented.)
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib')
-rw-r--r-- | lib/kobject.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/kobject.c b/lib/kobject.c index b2c6d1f56e6..f07c57252e8 100644 --- a/lib/kobject.c +++ b/lib/kobject.c | |||
@@ -948,6 +948,17 @@ const void *kobj_ns_initial(enum kobj_ns_type type) | |||
948 | return ns; | 948 | return ns; |
949 | } | 949 | } |
950 | 950 | ||
951 | /* | ||
952 | * kobj_ns_exit - invalidate a namespace tag | ||
953 | * | ||
954 | * @type: the namespace type (i.e. KOBJ_NS_TYPE_NET) | ||
955 | * @ns: the actual namespace being invalidated | ||
956 | * | ||
957 | * This is called when a tag is no longer valid. For instance, | ||
958 | * when a network namespace exits, it uses this helper to | ||
959 | * make sure no sb's sysfs_info points to the now-invalidated | ||
960 | * netns. | ||
961 | */ | ||
951 | void kobj_ns_exit(enum kobj_ns_type type, const void *ns) | 962 | void kobj_ns_exit(enum kobj_ns_type type, const void *ns) |
952 | { | 963 | { |
953 | sysfs_exit_ns(type, ns); | 964 | sysfs_exit_ns(type, ns); |