All of lore.kernel.org
 help / color / mirror / Atom feed
* [merged mm-hotfixes-stable] maple_tree-should-get-pivots-boundary-by-type.patch removed from -mm tree
@ 2023-02-01  0:45 Andrew Morton
  0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2023-02-01  0:45 UTC (permalink / raw)
  To: mm-commits, Liam.Howlett, richard.weiyang, akpm


The quilt patch titled
     Subject: maple_tree: should get pivots boundary by type
has been removed from the -mm tree.  Its filename was
     maple_tree-should-get-pivots-boundary-by-type.patch

This patch was dropped because it was merged into the mm-hotfixes-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Wei Yang <richard.weiyang@gmail.com>
Subject: maple_tree: should get pivots boundary by type
Date: Sat, 12 Nov 2022 23:43:08 +0000

We should get pivots boundary by type.  Fixes a potential overindexing of
mt_pivots[].

Link: https://lkml.kernel.org/r/20221112234308.23823-1-richard.weiyang@gmail.com
Fixes: 54a611b60590 ("Maple Tree: add new data structure")
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/maple_tree.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/lib/maple_tree.c~maple_tree-should-get-pivots-boundary-by-type
+++ a/lib/maple_tree.c
@@ -670,12 +670,13 @@ static inline unsigned long mte_pivot(co
 				 unsigned char piv)
 {
 	struct maple_node *node = mte_to_node(mn);
+	enum maple_type type = mte_node_type(mn);
 
-	if (piv >= mt_pivots[piv]) {
+	if (piv >= mt_pivots[type]) {
 		WARN_ON(1);
 		return 0;
 	}
-	switch (mte_node_type(mn)) {
+	switch (type) {
 	case maple_arange_64:
 		return node->ma64.pivot[piv];
 	case maple_range_64:
_

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



^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2023-02-01  0:45 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-02-01  0:45 [merged mm-hotfixes-stable] maple_tree-should-get-pivots-boundary-by-type.patch removed from -mm tree Andrew Morton

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.