On 27/12/06, Ingo Molnar <[email protected]> wrote:
* Catalin Marinas <[email protected]> wrote:
> On 17/12/06, Ingo Molnar <[email protected]> wrote:
> >it would be nice to record 1) the jiffies value at the time of
> >allocation, 2) the PID and the comm of the task that did the allocation.
> >The jiffies timestamp would be useful to see the age of the allocation,
> >and the PID/comm is useful for context.
>
> Trying to copy the comm with get_task_comm, I get the lockdep report
> below, caused by acquiring the task's alloc_lock. Any idea how to go
> around this?
just memcpy p->comm without any locking. It's for the current task,
right? That does not need any locking.
Yes, it is for the current task. I also added an in_interrupt() test
since the current->comm is not relevant in this case as Arjan pointed
out.
--
Catalin
-
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]
