Messages in this thread Patch in this message | | | From | Miaohe Lin <> | Subject | [PATCH 1/4] ksm: remove redundant VM_BUG_ON_PAGE() on stable_tree_search() | Date | Tue, 30 Mar 2021 10:02:25 -0400 |
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The same VM_BUG_ON_PAGE() check is already done in the callee. Remove these extra caller one to simplify code slightly.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> --- mm/ksm.c | 2 -- 1 file changed, 2 deletions(-)
diff --git a/mm/ksm.c b/mm/ksm.c index 1f2c62e1d797..359afb3023b4 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -1771,7 +1771,6 @@ static struct page *stable_tree_search(struct page *page) * stable_node_dup is the dup to replace. */ if (stable_node_dup == stable_node) { - VM_BUG_ON(is_stable_node_chain(stable_node_dup)); VM_BUG_ON(is_stable_node_dup(stable_node_dup)); /* chain is missing so create it */ stable_node = alloc_stable_node_chain(stable_node_dup, @@ -1785,7 +1784,6 @@ static struct page *stable_tree_search(struct page *page) * of the current nid for this page * content. */ - VM_BUG_ON(!is_stable_node_chain(stable_node)); VM_BUG_ON(!is_stable_node_dup(stable_node_dup)); VM_BUG_ON(page_node->head != &migrate_nodes); list_del(&page_node->list); -- 2.19.1
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