On Mon, 28 Jan 2013, Ivo Sieben wrote: > @Thomas Gleixner & Steven Rostedt: > Greg Kroah-Hartman responded to this patch: "And this really makes a > difference? I'd like to hear the rt developers opinion of this." In general the sleeping spinlocks overhead can be quite visible and AFAICT the ntty read_lock only protects very short code pathes which manipulate the read buffer and related data. So from an RT perspective this lock can be a real spinlock even on RT. Reviewed-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Thanks, tglx -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
