diff options
| author | Oleg Nesterov <oleg@redhat.com> | 2014-10-10 00:25:39 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-10 04:25:49 +0200 |
| commit | ad2a00e4b7e20ab03700b0bb13270b6cee45c6e0 (patch) | |
| tree | 4483971e6ae6042a5060a9a360930fbbfc83b65c /fs/proc | |
| parent | fs/proc/task_mmu.c: simplify m_start() to make it readable (diff) | |
| download | linux-ad2a00e4b7e20ab03700b0bb13270b6cee45c6e0.tar.xz linux-ad2a00e4b7e20ab03700b0bb13270b6cee45c6e0.zip | |
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: Oleg 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/task_mmu.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index bb16c967eefd..fef398948462 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -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; |