diff options
| author | Oleg Nesterov <oleg@redhat.com> | 2014-10-10 00:25:43 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-10 04:25:49 +0200 |
| commit | 557c2d8a73dc078817ba6949697ceb8c0f3f7362 (patch) | |
| tree | d9e8b719e407e94ae69dba39ad9d3937187251df /fs | |
| parent | fs/proc/task_mmu.c: reintroduce m->version logic (diff) | |
| download | linux-557c2d8a73dc078817ba6949697ceb8c0f3f7362.tar.xz linux-557c2d8a73dc078817ba6949697ceb8c0f3f7362.zip | |
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>
Signed-off-by: Linus Torvalds <torvalds@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 c7228c2326d1..34d93a1cdeec 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; |