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Commit ad2a00e4 authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Linus Torvalds
Browse files

fs/proc/task_mmu.c: introduce m_next_vma() helper 



Extract the tail_vma/vm_next calculation from m_next() into the new
trivial helper, m_next_vma().

Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 0c255321

fs/proc/task_mmu.c

+10 −5
Original line number Diff line number Diff line
@@ -138,6 +138,14 @@ static void vma_stop(struct proc_maps_private *priv) 
	mmput(mm);

}



static struct vm_area_struct *

m_next_vma(struct proc_maps_private *priv, struct vm_area_struct *vma)

{

	if (vma == priv->tail_vma)

		return NULL;

	return vma->vm_next ?: priv->tail_vma;

}



static void *m_start(struct seq_file *m, loff_t *ppos)

{

	struct proc_maps_private *priv = m->private;
@@ -173,13 +181,10 @@ static void *m_start(struct seq_file *m, loff_t *ppos) 
static void *m_next(struct seq_file *m, void *v, loff_t *pos)

{

	struct proc_maps_private *priv = m->private;

	struct vm_area_struct *tail_vma = priv->tail_vma;

	struct vm_area_struct *vma = v, *next = NULL;

	struct vm_area_struct *next;



	(*pos)++;

	if (vma != tail_vma)

		next = vma->vm_next ?: tail_vma;



	next = m_next_vma(priv, v);

	if (!next)

		vma_stop(priv);

	return next;