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 <o...@redhat.com>
---
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 1b897dc..4ec6b72 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -183,11 +183,14 @@ 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;
--
1.5.5.1
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