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Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 95647c66309f..726a92043531 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2130,15 +2130,12 @@ static int __pidfd_prepare(struct pid *pid, unsigned int flags, struct file **re
int pidfd;
struct file *pidfd_file;
- if (flags & ~(O_NONBLOCK | O_RDWR | O_CLOEXEC))
- return -EINVAL;
-
- pidfd = get_unused_fd_flags(O_RDWR | O_CLOEXEC);
+ pidfd = get_unused_fd_flags(O_CLOEXEC);
if (pidfd < 0)
return pidfd;
pidfd_file = anon_inode_getfile("[pidfd]", &pidfd_fops, pid,
- flags | O_RDWR | O_CLOEXEC);
+ flags | O_RDWR);
if (IS_ERR(pidfd_file)) {
put_unused_fd(pidfd);
return PTR_ERR(pidfd_file);
@@ -2524,7 +2521,7 @@ __latent_entropy struct task_struct *copy_process(
*/
if (clone_flags & CLONE_PIDFD) {
/* Note that no task has been attached to @pid yet. */
- retval = __pidfd_prepare(pid, O_RDWR | O_CLOEXEC, &pidfile);
+ retval = __pidfd_prepare(pid, 0, &pidfile);
if (retval < 0)
goto bad_fork_free_pid;
pidfd = retval;