diff mbox series

[v4,2/7] mm/hugetlb: remove VM_BUG_ON(!nrg) in get_file_region_entry_from_cache()

Message ID 20200901014636.29737-3-richard.weiyang@linux.alibaba.com (mailing list archive)
State New, archived
Headers show
Series mm/hugetlb: code refine and simplification | expand

Commit Message

Wei Yang Sept. 1, 2020, 1:46 a.m. UTC 
We are sure to get a valid file_region, otherwise the
VM_BUG_ON(resv->region_cache_count <= 0) at the very beginning would be
triggered.

Let's remove the redundant one.

Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
 mm/hugetlb.c | 1 -
 1 file changed, 1 deletion(-)
diff mbox series

Patch

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index db6af2654f12..fbaf49bc1d26 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -240,7 +240,6 @@  get_file_region_entry_from_cache(struct resv_map *resv, long from, long to)
 
 	resv->region_cache_count--;
 	nrg = list_first_entry(&resv->region_cache, struct file_region, link);
-	VM_BUG_ON(!nrg);
 	list_del(&nrg->link);
 
 	nrg->from = from;