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authorEric W. Biederman <ebiederm@xmission.com>2014-07-31 03:10:50 -0700
committerEric W. Biederman <ebiederm@xmission.com>2014-08-04 10:07:11 -0700
commit0097875bd41528922fb3bb5f348c53f17e00e2fd (patch)
tree414cffac820d04e4542dc7654e7ef188f00ba0b2 /include/linux/pid_namespace.h
parent6ba8ed79a3cce14bd5597218fd46408b8376f8f3 (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 'include/linux/pid_namespace.h')
-rw-r--r--include/linux/pid_namespace.h1
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;