Messages in this thread Patch in this message | | | From | "Uladzislau Rezki (Sony)" <> | Subject | [PATCH 3/5] mm/vmalloc: Initialize VA's list node after unlink | Date | Tue, 7 Jun 2022 11:34:47 +0200 |
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A vmap_area can travel between different places. For example attached/detached to/from different rb-trees. In order to prevent fancy bugs, initialize a VA's list node after it is removed from the list, so it pairs with VA's rb_node which is also initialized.
There is no functional change as a result of this patch.
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com> --- mm/vmalloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 745e89eb6ca1..82771e555273 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -978,7 +978,7 @@ __unlink_va(struct vmap_area *va, struct rb_root *root, bool augment) else rb_erase(&va->rb_node, root); - list_del(&va->list); + list_del_init(&va->list); RB_CLEAR_NODE(&va->rb_node); } -- 2.30.2
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