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SubjectRe: [PATCH] add sysctl from printk_tag

* Yinghai Lu <yhlu.kernel@gmail.com> wrote:

> under /proc/sys/kernel/printk_tag/ will have acpi, apic, dev, pci

nice!

> Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
>
> ---
> init/main.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 56 insertions(+)
>
> Index: linux-2.6/init/main.c
> ===================================================================
> --- linux-2.6.orig/init/main.c
> +++ linux-2.6/init/main.c
> @@ -63,6 +63,8 @@
> #include <linux/idr.h>
> #include <linux/kmemcheck.h>
> #include <linux/ftrace.h>
> +#include <linux/sysctl.h>
> +#include <linux/proc_fs.h>
>
> #include <asm/io.h>
> #include <asm/bugs.h>
> @@ -395,6 +397,60 @@ static int __init quiet_kernel(char *str
> early_param("debug", debug_kernel);
> early_param("quiet", quiet_kernel);
>
> +#ifdef CONFIG_SYSCTL
> +static struct ctl_table printk_tag_ctl_dir[] = {
> + {
> + .procname = "printk_tag",
> + .mode = 0555,
> + },
> + {0, },
> +};
> +
> +static struct ctl_table printk_tag_ctl_root[] = {
> + {
> + .ctl_name = CTL_KERN,
> + .procname = "kernel",
> + .mode = 0555,
> + .child = printk_tag_ctl_dir,
> + },
> + {0, },
> +};
> +
> +static int __init proc_printk_tag_init(void)
> +{
> + int i;
> + struct ctl_table *entry;
> + char buf[32];

magic constant.

> + strncpy(buf, tag_level[i].name, len - 1);
> + entry->procname = kstrdup(buf, GFP_KERNEL);
> + entry->data = &tag_level[i].level;
> + entry->maxlen = sizeof(tag_level[i].level);
> + entry->mode = 0644;
> + entry->proc_handler = proc_dointvec;
> + entry++;
> + }

hm, whitespace damage in every second line.

Ingo


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