diff options
| -rw-r--r-- | fs/proc/base.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index 601329f9629a..7779efda9fe2 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2972,7 +2972,7 @@ static const struct file_operations proc_coredump_filter_operations = { #ifdef CONFIG_TASK_IO_ACCOUNTING static int do_io_accounting(struct task_struct *task, struct seq_file *m, int whole) { - struct task_io_accounting acct = task->ioac; + struct task_io_accounting acct; unsigned long flags; int result; @@ -2986,14 +2986,18 @@ static int do_io_accounting(struct task_struct *task, struct seq_file *m, int wh } if (whole && lock_task_sighand(task, &flags)) { - struct task_struct *t = task; + struct signal_struct *sig = task->signal; + struct task_struct *t; - task_io_accounting_add(&acct, &task->signal->ioac); - while_each_thread(task, t) + acct = sig->ioac; + __for_each_thread(sig, t) task_io_accounting_add(&acct, &t->ioac); unlock_task_sighand(task, &flags); + } else { + acct = task->ioac; } + seq_printf(m, "rchar: %llu\n" "wchar: %llu\n" |