linux-kernel - [PATCH 04/11] kernel: Make io_thread and kthread bit fields

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Message-Id: <20230310220332.5309-5-michael.christie@oracle.com>
Date:   Fri, 10 Mar 2023 16:03:25 -0600
From:   Mike Christie <michael.christie@...cle.com>
To:     hch@...radead.org, stefanha@...hat.com, jasowang@...hat.com,
        mst@...hat.com, sgarzare@...hat.com,
        virtualization@...ts.linux-foundation.org, brauner@...nel.org,
        ebiederm@...ssion.com, torvalds@...ux-foundation.org,
        konrad.wilk@...cle.com, linux-kernel@...r.kernel.org
Cc:     Mike Christie <michael.christie@...cle.com>
Subject: [PATCH 04/11] kernel: Make io_thread and kthread bit fields

We only set args->io_thread/kthread to 0 or 1 then test if they are set,
so make them bit fields.

Signed-off-by: Mike Christie <michael.christie@...cle.com>
---
 include/linux/sched/task.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 32c9f01af0a6..268c77a42155 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -25,6 +25,8 @@ struct kernel_clone_args {
 	int __user *parent_tid;
 	const char *name;
 	int exit_signal;
+	u32 kthread:1;
+	u32 io_thread:1;
 	unsigned long stack;
 	unsigned long stack_size;
 	unsigned long tls;
@@ -32,8 +34,6 @@ struct kernel_clone_args {
 	/* Number of elements in *set_tid */
 	size_t set_tid_size;
 	int cgroup;
-	int io_thread;
-	int kthread;
 	int idle;
 	int (*fn)(void *);
 	void *fn_arg;
-- 
2.25.1