On 6/6/19 11:44 AM, Jason Gunthorpe wrote:
From: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
This list is always read and written while holding hmm->lock so there is
no need for the confusing _rcu annotations.
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Reviewed-by: Jérôme Glisse <jglisse@xxxxxxxxxx>
Reviewed-by: Ralph Campbell <rcampbell@xxxxxxxxxx>
---
mm/hmm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/hmm.c b/mm/hmm.c
index c2fecb3ecb11e1..709d138dd49027 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -911,7 +911,7 @@ int hmm_range_register(struct hmm_range *range,
mutex_lock(&hmm->lock);
range->hmm = hmm;
- list_add_rcu(&range->list, &hmm->ranges);
+ list_add(&range->list, &hmm->ranges);
/*
* If there are any concurrent notifiers we have to wait for them for
@@ -941,7 +941,7 @@ void hmm_range_unregister(struct hmm_range *range)
return;
mutex_lock(&hmm->lock);
- list_del_rcu(&range->list);
+ list_del(&range->list);
mutex_unlock(&hmm->lock);
/* Drop reference taken by hmm_range_register() */
