Quoting [EMAIL PROTECTED] ([EMAIL PROTECTED]):
> PATCH [05/06]
>
> This patch introduces the .show seq operation for /proc/pid/semundo.
>
>
> Signed-off-by: Pierre Peiffer <[EMAIL PROTECTED]>
> Signed-off-by: Nadia Derbey <[EMAIL PROTECTED]>
Acked-by: Serge Hallyn <[EMAIL PROTECTED]>
> ---
> ipc/sem.c | 28 ++++++++++++++++++++++++++++
> 1 file changed, 28 insertions(+)
>
> Index: linux-2.6.26-rc5-mm3/ipc/sem.c
> ===================================================================
> --- linux-2.6.26-rc5-mm3.orig/ipc/sem.c 2008-06-24 12:54:40.000000000
> +0200
> +++ linux-2.6.26-rc5-mm3/ipc/sem.c 2008-06-24 12:59:15.000000000 +0200
> @@ -1475,6 +1475,34 @@ static void semundo_stop(struct seq_file
>
> static int semundo_show(struct seq_file *m, void *v)
> {
> + struct undo_list_data *data = m->private;
> + struct ipc_namespace *ns = data->ipc_ns;
> + struct sem_undo *u = v;
> + int nsems, i;
> + struct sem_array *sma;
> +
> + /*
> + * This semid has been deleted, ignore it.
> + * Even if we skipped all sem_undo belonging to deleted semid
> + * in semundo_next(), some more deletions may have happened.
> + */
> + if (u->semid == -1)
> + return 0;
> +
> + seq_printf(m, "%10d", u->semid);
> +
> + sma = sem_lock(ns, u->semid);
> + if (IS_ERR(sma))
> + goto out;
> +
> + nsems = sma->sem_nsems;
> + sem_unlock(sma);
> +
> + for (i = 0; i < nsems; i++)
> + seq_printf(m, " %6d", u->semadj[i]);
> +
> +out:
> + seq_putc(m, '\n');
> return 0;
> }
>
>
> --
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