From 4999d715352d4cf753ef34f617619c95589c2593 Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Tue, 16 Mar 2021 15:58:27 -0400 Subject: [PATCH] kernel/acct rcu fix Signed-off-by: Liam R. Howlett --- kernel/acct.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/acct.c b/kernel/acct.c index 5e8934fcdb32..82c79cab4faf 100644 --- a/kernel/acct.c +++ b/kernel/acct.c @@ -540,8 +540,10 @@ void acct_collect(long exitcode, int group_dead) struct vm_area_struct *vma; mmap_read_lock(current->mm); + rcu_read_lock(); mas_for_each(&mas, vma, ULONG_MAX) vsize += vma->vm_end - vma->vm_start; + rcu_read_unlock(); mmap_read_unlock(current->mm); } -- 2.50.1