Change proc/<pid>/cmdline to 8k

[Navin P]

Hi,

  I want to change the cmdline of a process to support 8096 . It works
well on ppc where the page size is 65k.
  But when i try to increase it on x86 (i686)

http://lxr.free-electrons.com/source/fs/proc/base.c  by doing
6*PAGE_SIZE, i get kernel panic after some time

199 static int proc_pid_cmdline(struct seq_file *m, struct pid_namespace *ns,
200                             struct pid *pid, struct task_struct *task)
201 {
202         /*
203          * Rely on struct seq_operations::show() being called once
204          * per internal buffer allocation. See single_open(), traverse().
205          */
206         BUG_ON(m->size < PAGE_SIZE);
207         m->count += get_cmdline(task, m->buf, 6*PAGE_SIZE);
208         return 0;
209 }
210


Regards,
Navin