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Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c25
1 files changed, 10 insertions, 15 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 735405a9c5f3..a61a4407ebdf 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1891,8 +1891,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
#ifdef CONFIG_POSIX_TIMERS
INIT_HLIST_HEAD(&sig->posix_timers);
INIT_HLIST_HEAD(&sig->ignored_posix_timers);
- hrtimer_init(&sig->real_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
- sig->real_timer.function = it_real_fn;
+ hrtimer_setup(&sig->real_timer, it_real_fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
#endif
task_lock(current->group_leader);
@@ -2032,25 +2031,18 @@ static inline void rcu_copy_process(struct task_struct *p)
*/
static int __pidfd_prepare(struct pid *pid, unsigned int flags, struct file **ret)
{
- int pidfd;
struct file *pidfd_file;
- pidfd = get_unused_fd_flags(O_CLOEXEC);
+ CLASS(get_unused_fd, pidfd)(O_CLOEXEC);
if (pidfd < 0)
return pidfd;
pidfd_file = pidfs_alloc_file(pid, flags | O_RDWR);
- if (IS_ERR(pidfd_file)) {
- put_unused_fd(pidfd);
+ if (IS_ERR(pidfd_file))
return PTR_ERR(pidfd_file);
- }
- /*
- * anon_inode_getfile() ignores everything outside of the
- * O_ACCMODE | O_NONBLOCK mask, set PIDFD_THREAD manually.
- */
- pidfd_file->f_flags |= (flags & PIDFD_THREAD);
+
*ret = pidfd_file;
- return pidfd;
+ return take_fd(pidfd);
}
/**
@@ -2432,8 +2424,11 @@ __latent_entropy struct task_struct *copy_process(
if (clone_flags & CLONE_PIDFD) {
int flags = (clone_flags & CLONE_THREAD) ? PIDFD_THREAD : 0;
- /* Note that no task has been attached to @pid yet. */
- retval = __pidfd_prepare(pid, flags, &pidfile);
+ /*
+ * Note that no task has been attached to @pid yet indicate
+ * that via CLONE_PIDFD.
+ */
+ retval = __pidfd_prepare(pid, flags | PIDFD_CLONE, &pidfile);
if (retval < 0)
goto bad_fork_free_pid;
pidfd = retval;