[PATCH v2 40/61] kernel/acct: Use maple tree iterators instead of linked list
From: Liam Howlett <hidden>
Date: 2021-08-17 15:55:01
Also in:
lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: "Liam R. Howlett" <redacted> Signed-off-by: Liam R. Howlett <redacted> --- kernel/acct.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/acct.c b/kernel/acct.c
index 23a7ab8e6cbc..32343edc7330 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c@@ -534,16 +534,16 @@ void acct_collect(long exitcode, int group_dead) struct pacct_struct *pacct = ¤t->signal->pacct; u64 utime, stime; unsigned long vsize = 0; + MA_STATE(mas, ¤t->mm->mm_mt, 0, 0); if (group_dead && current->mm) { struct vm_area_struct *vma; mmap_read_lock(current->mm); - vma = current->mm->mmap; - while (vma) { + rcu_read_lock(); + mas_for_each(&mas, vma, ULONG_MAX) vsize += vma->vm_end - vma->vm_start; - vma = vma->vm_next; - } + rcu_read_unlock(); mmap_read_unlock(current->mm); }
--
2.30.2