diff options
| author | Oleg Nesterov <oleg@redhat.com> | 2014-09-10 09:40:19 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2014-09-10 09:40:19 +1000 |
| commit | 08c97e01bdb0ae8b4cba1e02fc0c1107e390a688 (patch) | |
| tree | 00cd259bdaa27860b7124b62c8f2c56380a0b97f /fs | |
| parent | 8357188aef147f1fcd52f1d0f6746ea2cf6d5403 (diff) | |
fs/proc/task_mmu.c: update m->version in the main loop in m_start()
Change the main loop in m_start() to update m->version. Mostly for
consistency, but this can help to avoid the same loop if the very
1st ->show() fails due to seq_overflow().
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/proc/task_mmu.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index f4190629f056..aceff2da0991 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -184,11 +184,14 @@ static void *m_start(struct seq_file *m, loff_t *ppos) m->version = 0; if (pos < mm->map_count) { - for (vma = mm->mmap; pos; pos--) + for (vma = mm->mmap; pos; pos--) { + m->version = vma->vm_start; vma = vma->vm_next; + } return vma; } + /* we do not bother to update m->version in this case */ if (pos == mm->map_count && priv->tail_vma) return priv->tail_vma; |