lkml.org 
[lkml]   [2003]   [Feb]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: fcntl and flock wakeups not FIFO?

[cc'ing the person or list mentioned in MAINTAINERS would get you a better
response :-P]

> I've been doing some experimenting with locking on 2.4.18 and have
> noticed that if I have a number of writers waiting on a lock, they are
> not woken up in the order in which they requested the lock.
>
> Is this expected? If so, what was the reasoning for this and are there
> any patches to give FIFO wakeups?

That certainly isn't what's supposed to happen. They should get woken
up in-order. The code in 2.4.18 seems to be doing that. Are you doing
anything clever with scheduling?

--
"It's not Hollywood. War is real, war is primarily not about defeat or
victory, it is about death. I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk
-
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    [W:0.033 / U:1.096 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site