On Thu, 13 Oct 2005 16:16:58 -0700 (PDT), Linus Torvalds <[email protected]> wrote:
> "release()" won't be called until the _last_ close, and the task that
> opened the fd can certainly exit before that.
>[...]
> It's a fundamental mistake to think that file descriptors stay with the
> process that opened them.
I am quite aware and my proposal takes it into account. I am sorry that
I failed to explain it adequately.
Did you even look at the pseudocode though?
-- Pete
P.S.
submit_urb()
as->pid = current->pid;
as->tgid = current->tgid;
.....
async_complete()
__kill_same_process(as->pid, as->tgid);
/* DO NOT USE IN DRIVERS (other than USB core) */
__kill_same_process(pid_t pid, pid_t tgid) {
task_struct *we, *maybe_parent;
lock(&tasklist_lock);
we = find_task_by_pid(pid);
maybe_parent = find_task_by_tgid(pid);
if (maybe_parent != NULL && we->parent == maybe_parent)
send_sig_info(sig, info, we);
unlock(&tasklist_lock);
}
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