lkml.org 
[lkml]   [2003]   [Mar]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] small fixes in brlock.h

On 9 Mar 2003, Robert Love wrote:
>
> I guess nothing uses these irq variants. In fact, grepping the
> source... wow, not much uses brlocks at all. Only registered lock is
> BR_NETPROTO_LOCK. A read lock on it is called only 7 times and a write
> lock is used 31 times.
>
> Everything must of moved over to using RCU or something. It makes me
> question the future of these things.

No, I don't think there are even "moved to RCU" users. It's just never
been used very much, since the writes are _so_ expensive (in fact, there
have been various live-locks on the writer side, the whole brlock thing is
really questionable).

It's entirely possible that the current user could be replaced by RCU
and/or seqlocks, and we could get rid of brlocks entirely.

Linus

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:33    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site