Re: Doubt Regarding Multithreading and Device Driver

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



But i am sharing something in file->private_data which is a private
variable to the process(that is passed to the device driver
functions). Isn't it?

SK

On 4/27/05, Max Kellermann <[email protected]> wrote:
> On 2005/04/27 17:05, k8 s <[email protected]> wrote:
> > I am storing something into struct file*filp->private_data.
> > As this is not shared across processes I am not doing any locking
> > stuff while accessing or putting anything into it.
> 
> You're talking about kernel variables, aren't you? Kernel memory is
> shared among all processes, i.e. you _do_ need locking.
> 
> Max
> 
>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux