[RFC PATCH 07/10] fs/proc: hide PF_IO_WORKER in get_task_cmdline()
From: Stefan Metzmacher <metze@samba.org>
Date: 2021-03-15 17:04:07
Subsystem:
filesystems (vfs and infrastructure), proc filesystem, the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
We should not return the userspace cmdline for io_worker threads. Signed-off-by: Stefan Metzmacher <metze@samba.org> --- fs/proc/base.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 3851bfcdba56..6e04278de582 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c@@ -344,6 +344,9 @@ static ssize_t get_task_cmdline(struct task_struct *tsk, char __user *buf, struct mm_struct *mm; ssize_t ret; + if (tsk->flags & PF_IO_WORKER) + return 0; + mm = get_task_mm(tsk); if (!mm) return 0;
--
2.25.1