rculist: use list_entry_rcu in places where it's appropriate (05725f7e) · Commits · 戴 / test

include/linux/sched.h

+5 −3

Original line number	Diff line number	Diff line
		@@ -77,6 +77,7 @@ struct sched_param {
		#include <linux/proportions.h>
		#include <linux/seccomp.h>
		#include <linux/rcupdate.h>
		#include <linux/rculist.h>
		#include <linux/rtmutex.h>

		#include <linux/time.h>
		@@ -2010,7 +2011,8 @@ static inline unsigned long wait_task_inactive(struct task_struct *p,
		}
		#endif

		#define next_task(p) list_entry(rcu_dereference((p)->tasks.next), struct task_struct, tasks)
		#define next_task(p) \
		list_entry_rcu((p)->tasks.next, struct task_struct, tasks)

		#define for_each_process(p) \
		for (p = &init_task ; (p = next_task(p)) != &init_task ; )
		@@ -2049,7 +2051,7 @@ int same_thread_group(struct task_struct p1, struct task_struct p2)

		static inline struct task_struct next_thread(const struct task_struct p)
		{
		return list_entry(rcu_dereference(p->thread_group.next),
		return list_entry_rcu(p->thread_group.next,
		struct task_struct, thread_group);
		}

+2 −2

Original line number	Diff line number	Diff line
		@@ -1290,7 +1290,7 @@ void exit_sem(struct task_struct *tsk)
		int i;

		rcu_read_lock();
		un = list_entry(rcu_dereference(ulp->list_proc.next),
		un = list_entry_rcu(ulp->list_proc.next,
		struct sem_undo, list_proc);
		if (&un->list_proc == &ulp->list_proc)
		semid = -1;

+2 −2

Original line number	Diff line number	Diff line
		@@ -84,7 +84,7 @@ static void ima_measurements_next(struct seq_file m, void v, loff_t pos)
		* against concurrent list-extension
		*/
		rcu_read_lock();
		qe = list_entry(rcu_dereference(qe->later.next),
		qe = list_entry_rcu(qe->later.next,
		struct ima_queue_entry, later);
		rcu_read_unlock();
		(*pos)++;

+4 −4

Original line number	Diff line number	Diff line
		@@ -734,7 +734,7 @@ static void smk_netlbladdr_insert(struct smk_netlbladdr *new)
		return;
		}

		m = list_entry(rcu_dereference(smk_netlbladdr_list.next),
		m = list_entry_rcu(smk_netlbladdr_list.next,
		struct smk_netlbladdr, list);

		/* the comparison '>' is a bit hacky, but works */
		@@ -748,7 +748,7 @@ static void smk_netlbladdr_insert(struct smk_netlbladdr *new)
		list_add_rcu(&new->list, &m->list);
		return;
		}
		m_next = list_entry(rcu_dereference(m->list.next),
		m_next = list_entry_rcu(m->list.next,
		struct smk_netlbladdr, list);
		if (new->smk_mask.s_addr > m_next->smk_mask.s_addr) {
		list_add_rcu(&new->list, &m->list);