diff mbox series

[128/173] mm/hugetlb: remove unnecessary VM_BUG_ON_PAGE on putback_active_hugepage()

Message ID 20210224200743.jzLsuQCyf%akpm@linux-foundation.org (mailing list archive)
State New, archived
Headers show
Series [001/173] hexagon: remove CONFIG_EXPERIMENTAL from defconfigs | expand

Commit Message

Andrew Morton Feb. 24, 2021, 8:07 p.m. UTC 
From: Miaohe Lin <linmiaohe@huawei.com>
Subject: mm/hugetlb: remove unnecessary VM_BUG_ON_PAGE on putback_active_hugepage()

All callers know they are operating on a hugetlb head page.  So this
VM_BUG_ON_PAGE can not catch anything useful.

Link: https://lkml.kernel.org/r/20210209071151.44731-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/hugetlb.c |    1 -
 1 file changed, 1 deletion(-)
diff mbox series

Patch

--- a/mm/hugetlb.c~mm-hugetlb-remove-unnecessary-vm_bug_on_page-on-putback_active_hugepage
+++ a/mm/hugetlb.c
@@ -5622,7 +5622,6 @@  unlock:
 
 void putback_active_hugepage(struct page *page)
 {
-	VM_BUG_ON_PAGE(!PageHead(page), page);
 	spin_lock(&hugetlb_lock);
 	set_page_huge_active(page);
 	list_move_tail(&page->lru, &(page_hstate(page))->hugepage_activelist);