On Thu, 7 Dec 2000, Andreas Klein wrote:
> > A proper way to release the references to resources is to call daemonize()
> > function from within the kernel thread function, which calls
> > exit_fs()/exit_files() internally.
>
> Nearly correct, the daemonize function does NOT call exit_files.
I do not post messages to linux-kernel without checking the facts
first. Read the daemonize() function and see for yourself that you are
wrong.
Regards,
Tigran
PS, Here it is, to save you time opening kernel/sched.c. The kernel is, of
course, test12-pre7.
/*
* Put all the gunge required to become a kernel thread without
* attached user resources in one place where it belongs.
*/
void daemonize(void)
{
struct fs_struct *fs;
/*
* If we were started as result of loading a module, close all of
the
* user space pages. We don't need them, and if we didn't close
them
* they would be locked into memory.
*/
exit_mm(current);
current->session = 1;
current->pgrp = 1;
/* Become as one with the init task */
exit_fs(current); /* current->fs->count--; */
fs = init_task.fs;
current->fs = fs;
atomic_inc(&fs->count);
exit_files(current);
current->files = init_task.files;
atomic_inc(¤t->files->count);
}
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This archive was generated by hypermail 2b29 : Thu Dec 07 2000 - 21:00:19 EST