Messages in this thread Patch in this message | | | From | Sergey Senozhatsky <> | Subject | [RFC][PATCH 4/4] printk: enable printk offloading | Date | Mon, 6 Mar 2017 21:45:54 +0900 |
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Initialize the kernel printing thread and enable printk() offloading.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> --- kernel/printk/printk.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index 6e00073a7331..601a9ef6db89 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -2779,6 +2779,25 @@ static int printk_kthread_func(void *data) return 0; } +/* + * Init printk kthread at late_initcall stage, after core/arch/device/etc. + * initialization. + */ +static int __init init_printk_kthread(void) +{ + struct task_struct *thread; + + thread = kthread_run(printk_kthread_func, NULL, "printk"); + if (IS_ERR(thread)) { + pr_err("printk: unable to create printing thread\n"); + return PTR_ERR(thread); + } + + printk_kthread = thread; + return 0; +} +late_initcall(init_printk_kthread); + void wake_up_klogd(void) { preempt_disable(); -- 2.12.0
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