Re: [PATCH -mm 1/1] proc: turn signal_struct->count into "intnr_threads"
From: Oleg Nesterov
Date: Wed Mar 24 2010 - 14:14:16 EST
On 03/24, Oleg Nesterov wrote:
>
> No functional changes, just s/atomic_t count/int nr_threads/.
Argh, I forgot to send "[PATCH 0/1]", please see below...
[PATCH -mm 0/1] proc: turn signal_struct->count into "int nr_threads"
Depends on
[PATCH -mm 1/2] proc_sched_show_task: use get_nr_threads()
[PATCH -mm 2/2] keyctl_session_to_parent: use thread_group_empty() to check singlethreadness
and on top of the trivial
[PATCH -mm] signals-clear-signal-tty-when-the-last-thread-exits.fix
I did "make allyesconfig" to test this change, but the compilation
failed because of unrelated bugs, and of course "count" is not really
grepable :/
However,
$ grep -nr --include=*.[ch] -E 'sig\w*->count' */ | grep -Ev 'sigh(and)?->count'
kernel/fork.c:827: atomic_set(&sig->count, 1);
and this "sig" above is in fact sighand.
Fortunately, if I missed some user of signal->count the necessary fix
will be really trivial. And I bet in this case that user should be
wrong anyway.
Oleg.
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