diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2014-07-31 03:10:50 -0700 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2014-08-04 10:07:11 -0700 |
| commit | 0097875bd41528922fb3bb5f348c53f17e00e2fd (patch) | |
| tree | 414cffac820d04e4542dc7654e7ef188f00ba0b2 /fs/proc/internal.h | |
| parent | 6ba8ed79a3cce14bd5597218fd46408b8376f8f3 (diff) | |
proc: Implement /proc/thread-self to point at the directory of the current thread
/proc/thread-self is derived from /proc/self. /proc/thread-self
points to the directory in proc containing information about the
current thread.
This funtionality has been missing for a long time, and is tricky to
implement in userspace as gettid() is not exported by glibc. More
importantly this allows fixing defects in /proc/mounts and /proc/net
where in a threaded application today they wind up being empty files
when only the initial pthread has exited, causing problems for other
threads.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'fs/proc/internal.h')
| -rw-r--r-- | fs/proc/internal.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 3ab6d14e71c5..ee04619173b2 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -234,6 +234,12 @@ static inline int proc_net_init(void) { return 0; } extern int proc_setup_self(struct super_block *); /* + * proc_thread_self.c + */ +extern int proc_setup_thread_self(struct super_block *); +extern void proc_thread_self_init(void); + +/* * proc_sysctl.c */ #ifdef CONFIG_PROC_SYSCTL |