Hi, On 4/30/05, Chandrakanth Chereddi <chereddi@xxxxxxxxx> wrote: > On 4/29/05, Martin Jambor <jamborm@xxxxxxxxx> wrote: > > My first thought would be to use a semaphore, myTx would be upping it > > after it has added an element to the work queue and myDeliver would > > use down to wait for another item to arrive. Please note that you need > > to protect queue manipulation with a separate lock as well so take > > care of a potential deadlock. > > Thanks for the reply. Yeah, I think as far as formulation goes, it > fits in nicely as a producer consumer problem, but there might be more > to it. As far as queue locking goes, since I am talking about > packets, I can just use the skb_(de)queue and other functions in the > kernel API, which take care of locking? > > I am not sure if semaphore is the right way, especially when you are > talking about having to use the function to process something like > 2000+ packets per second. So, I was thinking a tasklet might be the > best way, also since I expect to have not more than one instance of > myDeliver() at any time? Once again, I have no experience here, so > could be very wrong. Would appreciate any kind of advice, even if not > directly relavant. I don't know ether since I don't know what you want to accomplish. If myDeliver can be a tasklet, it _probably_ should be a tasklet. I originaly thought you were talking about processes. Nevertheless, maybe someone else can help you better if you explain what your functions do, I'm currently involved in tackling a different part of the kernel (vfs). HTH Martin Jambor -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
