Debugging aid.
Signed-off-by: Alexey Dobriyan <[email protected]>
---
include/linux/sched.h | 2 ++
kernel/fork.c | 2 ++
2 files changed, 4 insertions(+)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -784,7 +784,9 @@ #endif
struct prio_array *array;
unsigned short ioprio;
+#ifdef CONFIG_BLK_DEV_IO_TRACE
unsigned int btrace_seq;
+#endif
unsigned long sleep_avg;
unsigned long long timestamp, last_ran;
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -177,7 +177,9 @@ static struct task_struct *dup_task_stru
/* One for us, one for whoever does the "release_task()" (usually parent) */
atomic_set(&tsk->usage,2);
atomic_set(&tsk->fs_excl, 0);
+#ifdef CONFIG_BLK_DEV_IO_TRACE
tsk->btrace_seq = 0;
+#endif
tsk->splice_pipe = NULL;
return tsk;
}
-
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