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| 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 /include | |
| parent | 6ba8ed79a3cce14bd5597218fd46408b8376f8f3 (diff) | |
| download | lwn-0097875bd41528922fb3bb5f348c53f17e00e2fd.tar.gz lwn-0097875bd41528922fb3bb5f348c53f17e00e2fd.zip | |
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 'include')
| -rw-r--r-- | include/linux/pid_namespace.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index 7246ef3d4455..1997ffc295a7 100644 --- a/include/linux/pid_namespace.h +++ b/include/linux/pid_namespace.h @@ -33,6 +33,7 @@ struct pid_namespace { #ifdef CONFIG_PROC_FS struct vfsmount *proc_mnt; struct dentry *proc_self; + struct dentry *proc_thread_self; #endif #ifdef CONFIG_BSD_PROCESS_ACCT struct bsd_acct_struct *bacct; |