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-rw-r--r--include/linux/sched.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 541f482..e3539c1 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -684,6 +684,7 @@ static inline void prefetch_stack(struct task_struct *t) { }
struct audit_context; /* See audit.c */
struct mempolicy;
+struct pipe_inode_info;
enum sleep_type {
SLEEP_NORMAL,
@@ -882,6 +883,11 @@ struct task_struct {
atomic_t fs_excl; /* holding fs exclusive resources */
struct rcu_head rcu;
+
+ /*
+ * cache last used pipe for splice
+ */
+ struct pipe_inode_info *splice_pipe;
};
static inline pid_t process_group(struct task_struct *tsk)
@@ -1203,9 +1209,10 @@ extern void wait_task_inactive(task_t * p);
#define while_each_thread(g, t) \
while ((t = next_thread(t)) != g)
-#define thread_group_leader(p) (p->pid == p->tgid)
+/* de_thread depends on thread_group_leader not being a pid based check */
+#define thread_group_leader(p) (p == p->group_leader)
-static inline task_t *next_thread(task_t *p)
+static inline task_t *next_thread(const task_t *p)
{
return list_entry(rcu_dereference(p->thread_group.next),
task_t, thread_group);
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