Eric has pointed out that we still have 3 users of do_each_thread().
Change them to use for_each_process_thread() and kill this helper.
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
---
arch/ia64/kernel/mca.c | 4 ++--
drivers/tty/tty_io.c | 4 ++--
fs/fs_struct.c | 4 ++--
include/linux/sched/signal.h | 7 -------
4 files changed, 6 insertions(+), 13 deletions(-)
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 92ede80d17fe..2671688d349a 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1630,10 +1630,10 @@ default_monarch_init_process(struct notifier_block *self, unsigned long val, voi
}
printk("\n\n");
if (read_trylock(&tasklist_lock)) {
- do_each_thread (g, t) {
+ for_each_process_thread(g, t) {
printk("\nBacktrace of pid %d (%s)\n", t->pid, t->comm);
show_stack(t, NULL, KERN_DEFAULT);
- } while_each_thread (g, t);
+ }
read_unlock(&tasklist_lock);
}
/* FIXME: This will not restore zapped printk locks. */
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 63db04b9113a..27d8e3a1aace 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -3031,7 +3031,7 @@ void __do_SAK(struct tty_struct *tty)
} while_each_pid_task(session, PIDTYPE_SID, p);
/* Now kill any processes that happen to have the tty open */
- do_each_thread(g, p) {
+ for_each_process_thread(g, p) {
if (p->signal->tty == tty) {
tty_notice(tty, "SAK: killed process %d (%s): by controlling tty\n",
task_pid_nr(p), p->comm);
@@ -3048,7 +3048,7 @@ void __do_SAK(struct tty_struct *tty)
PIDTYPE_SID);
}
task_unlock(p);
- } while_each_thread(g, p);
+ }
read_unlock(&tasklist_lock);
put_pid(session);
}
diff --git a/fs/fs_struct.c b/fs/fs_struct.c
index 04b3f5b9c629..64c2d0814ed6 100644
--- a/fs/fs_struct.c
+++ b/fs/fs_struct.c
@@ -62,7 +62,7 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root)
int count = 0;
read_lock(&tasklist_lock);
- do_each_thread(g, p) {
+ for_each_process_thread(g, p) {
task_lock(p);
fs = p->fs;
if (fs) {
@@ -79,7 +79,7 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root)
spin_unlock(&fs->lock);
}
task_unlock(p);
- } while_each_thread(g, p);
+ }
read_unlock(&tasklist_lock);
while (count--)
path_put(old_root);
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 669e8cff40c7..0deebe2ab07d 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -648,13 +648,6 @@ extern void flush_itimer_signals(void);
extern bool current_is_single_threaded(void);
-/*
- * Careful: do_each_thread/while_each_thread is a double loop so
- * 'break' will not work as expected - use goto instead.
- */
-#define do_each_thread(g, t) \
- for (g = t = &init_task ; (g = t = next_task(g)) != &init_task ; ) do
-
#define while_each_thread(g, t) \
while ((t = next_thread(t)) != g)
--
2.25.1.362.g51ebf55
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