Matthew Wilcox wrote: > On Mon, Jan 21, 2008 at 02:13:52PM +0900, Tejun Heo wrote: >> In a nutshell, printk_header() lets you do the following atomically >> (against other messages). >> >> code: >> printk(KERN_INFO "ata1.00: ", "line0\nline1\nline2\n"); >> >> output: >> <6>ata1.00: line0 >> <6> line1 >> <6> line2 > > I think this is a really bad idea. It's much better to have: > > <6>ata1.00: line0 > <6>ata1.00: line1 > <6>ata1.00: line2 > > That way you can grep for ata1.00 and get all messages relevant to that > device. It has some pros and cons. Having indentation makes things easier on human eyes but more difficult on scripts, but not too difficult - indented lines can easily be matched with a bit of scripting. Changing the behavior is easy but I'm still inclined toward indentation because printing header every line loses information about message boundaries. Maybe there's a way to satisfy both like omitting the separator from the second line on. ata1.00: line0 ata1.00 line1 ata1.00 line2 Hmm... Any better ideas? -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
