Re: [PATCH] printk: remove unnecessary kmalloc() from syslog during clear

[Sergey Senozhatsky]

On (06/25/18 10:37), Steven Rostedt wrote:
> 
> Is IMHO rather ugly.

Either way works for me. So I'll leave it to you and Petr to decide :)

> And the original patch has one more advantage. If buf and clear are
> both NULL/zero, we don't take any locks.

But we never use syslog_print_all(buf = NULL, clear = false). It's either
NULL/true [move forward clear idx, do not copy to user], or !NULL/use defined
value [copy to user, move or don't move clear idx forward]

	-ss