1 files changed, 19 insertions, 1 deletions

diff --git a/fs/proc/array.c b/fs/proc/array.c
index b6c00ce0e29e..88c7de12197b 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -83,6 +83,7 @@
 #include <linux/tracehook.h>
 #include <linux/string_helpers.h>
 #include <linux/user_namespace.h>
+#include <linux/fs_struct.h>
 
 #include <asm/pgtable.h>
 #include <asm/processor.h>
@@ -139,12 +140,25 @@ static inline const char *get_task_state(struct task_struct *tsk)
         return task_state_array[fls(state)];
 }
 
+static inline int get_task_umask(struct task_struct *tsk)
+{
+        struct fs_struct *fs;
+        int umask = -ENOENT;
+
+        task_lock(tsk);
+        fs = tsk->fs;
+        if (fs)
+                umask = fs->umask;
+        task_unlock(tsk);
+        return umask;
+}
+
 static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
                                 struct pid *pid, struct task_struct *p)
 {
         struct user_namespace *user_ns = seq_user_ns(m);
         struct group_info *group_info;
-        int g;
+        int g, umask;
         struct task_struct *tracer;
         const struct cred *cred;
         pid_t ppid, tpid = 0, tgid, ngid;
@@ -162,6 +176,10 @@ static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
         ngid = task_numa_group_id(p);
         cred = get_task_cred(p);
 
+        umask = get_task_umask(p);
+        if (umask >= 0)
+                seq_printf(m, "Umask:\t%#04o\n", umask);
+
         task_lock(p);
         if (p->files)
                 max_fds = files_fdtable(p->files)->max_fds;