| From | Liam Howlett <> | Subject | [PATCH 85/94] mm/oom_kill: Use maple tree iterators instead of vma linked list | Date | Wed, 28 Apr 2021 15:36:29 +0000 |
| |
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com> --- mm/oom_kill.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 54527de9cd2d..1f6491965802 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -515,6 +515,7 @@ bool __oom_reap_task_mm(struct mm_struct *mm) { struct vm_area_struct *vma; bool ret = true; + MA_STATE(mas, &mm->mm_mt, 0, 0); /* * Tell all users of get_user/copy_from_user etc... that the content @@ -524,7 +525,8 @@ bool __oom_reap_task_mm(struct mm_struct *mm) */ set_bit(MMF_UNSTABLE, &mm->flags); - for (vma = mm->mmap ; vma; vma = vma->vm_next) { + rcu_read_lock(); + mas_for_each(&mas, vma, ULONG_MAX) { if (!can_madv_lru_vma(vma)) continue; @@ -556,6 +558,7 @@ bool __oom_reap_task_mm(struct mm_struct *mm) tlb_finish_mmu(&tlb); } } + rcu_read_unlock(); return ret; } -- 2.30.2
|