+ mm-vmalloc-initialize-vas-list-node-after-unlink.patch added to mm-unstable branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: mm/vmalloc: initialize VA's list node after unlink
has been added to the -mm mm-unstable branch.  Its filename is
     mm-vmalloc-initialize-vas-list-node-after-unlink.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vmalloc-initialize-vas-list-node-after-unlink.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Subject: mm/vmalloc: initialize VA's list node after unlink
Date: Tue, 7 Jun 2022 11:34:47 +0200

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.

Link: https://lkml.kernel.org/r/20220607093449.3100-4-urezki@gmail.com
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Oleksiy Avramchenko <oleksiy.avramchenko@sony.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/vmalloc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/vmalloc.c~mm-vmalloc-initialize-vas-list-node-after-unlink
+++ a/mm/vmalloc.c
@@ -977,7 +977,7 @@ __unlink_va(struct vmap_area *va, struct
 	else
 		rb_erase(&va->rb_node, root);
 
-	list_del(&va->list);
+	list_del_init(&va->list);
 	RB_CLEAR_NODE(&va->rb_node);
 }
 
_

Patches currently in -mm which might be from urezki@gmail.com are

mm-vmalloc-make-link_va-unlink_va-common-to-different-rb_root.patch
mm-vmalloc-extend-__alloc_vmap_area-with-extra-arguments.patch
mm-vmalloc-initialize-vas-list-node-after-unlink.patch
mm-vmalloc-extend-__find_vmap_area-with-one-more-argument.patch
lib-test_vmalloc-switch-to-prandom_u32.patch