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Re: [patch 1/3] dynamic printk - core infrastructure
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From: mws
Subject:
Re: [patch 1/3] dynamic printk - core infrastructure
Date: Tuesday, April 1, 2008 - 1:09 pm
hi, Jason Baron schrieb:
quoted text
> Add the ability to dynamically enable/disable pr_debug()/dev_dbg() in the > kernel. Yes, these calls could be converted to printk(KERN_DEBUG), but there > are enough to cause overhead. Additionally, the logs become difficult to read. > Here, one can turn on and off these messages per .c source file via: > > echo "add file.c" > /sys/kernel/debug/dynamic_printk/files > echo "remove file.c" > /sys/kernel/debug/dynamic_printk/files > > There is also a special 'all' value that turns on all the debugging messages. > > Signed-off-by: Jason Baron <jbaron@redhat.com> > --- >
--snip --
quoted text
> diff --git a/include/linux/device.h b/include/linux/device.h > index db375be..b007f61 100644 > --- a/include/linux/device.h > +++ b/include/linux/device.h > @@ -587,6 +587,17 @@ extern const char *dev_driver_string(struct device *dev); > #define dev_info(dev, format, arg...) \ > dev_printk(KERN_INFO , dev , format , ## arg) > > +#ifdef CONFIG_DYNAMIC_PRINTK > +extern void dyanmic_printk(char *, char *, ...);
this external should be dynamic_printk (typo), shouldn't it? regards marcel --
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Messages in current thread:
[patch 1/3] dynamic printk - core infrastructure
, Jason Baron
, (Tue Apr 1, 12:49 pm)
Re: [patch 1/3] dynamic printk - core infrastructure
, mws
, (Tue Apr 1, 1:09 pm)
Re: [patch 1/3] dynamic printk - core infrastructure
, Randy Dunlap
, (Tue Apr 1, 2:47 pm)
Re: [patch 1/3] dynamic printk - core infrastructure
, Joe Perches
, (Tue Apr 1, 7:07 pm)
Re: [patch 1/3] dynamic printk - core infrastructure
, Jason Baron
, (Wed Apr 2, 11:21 am)
Re: [patch 1/3] dynamic printk - core infrastructure
, Joe Perches
, (Wed Apr 2, 11:58 am)
Re: [patch 1/3] dynamic printk - core infrastructure
, Jason Baron
, (Fri Apr 4, 11:13 am)
Re: [patch 1/3] dynamic printk - core infrastructure
, Joe Perches
, (Fri Apr 4, 11:33 am)
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