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authorEric W. Biederman <ebiederm@xmission.com>2021-12-20 19:16:34 -0600
committerEric W. Biederman <ebiederm@xmission.com>2022-01-08 12:43:57 -0600
commit2d18f7f456209ed8a8fc138b8bc535dbdaf84695 (patch)
treedbffe8276260bbe286eae3ac7cac35d17d433afa /fs/proc
parent907c311f37ba04ccebd00a9b9f3ba718e318a1de (diff)
downloadlinux-2d18f7f456209ed8a8fc138b8bc535dbdaf84695.tar.bz2
exit: Use the correct exit_code in /proc/<pid>/stat
Since do_proc_statt was modified to return process wide values instead of per task values the exit_code calculation has never been updated. Update it now to return the process wide exit_code when it is requested and available. History-Tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git Fixes: bf719d26a5c1 ("[PATCH] distinct tgid/tid CPU usage") Link: https://lkml.kernel.org/r/20220103213312.9144-4-ebiederm@xmission.com Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'fs/proc')
-rw-r--r--fs/proc/array.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/proc/array.c b/fs/proc/array.c
index ff869a66b34e..43a7abde9e42 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -468,6 +468,7 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
u64 cgtime, gtime;
unsigned long rsslim = 0;
unsigned long flags;
+ int exit_code = task->exit_code;
state = *get_task_state(task);
vsize = eip = esp = 0;
@@ -531,6 +532,9 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
maj_flt += sig->maj_flt;
thread_group_cputime_adjusted(task, &utime, &stime);
gtime += sig->gtime;
+
+ if (sig->flags & (SIGNAL_GROUP_EXIT | SIGNAL_STOP_STOPPED))
+ exit_code = sig->group_exit_code;
}
sid = task_session_nr_ns(task, ns);
@@ -630,7 +634,7 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
seq_puts(m, " 0 0 0 0 0 0 0");
if (permitted)
- seq_put_decimal_ll(m, " ", task->exit_code);
+ seq_put_decimal_ll(m, " ", exit_code);
else
seq_puts(m, " 0");