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d=linuxfoundation.org; s=korg; t=1681287151; bh=6RixP84CdFQm60l7+a8pvDyNvlFutXG0CK5OuIX9Rks=; h=Subject:To:Cc:From:Date:In-Reply-To:From; b=QL9gIqrYR+OrQJGKGz8c2k/GYzgIzF8uZMsr1dxq23uBJGeGwpKow6paTjz/PHtHl cW9eFRvKTZzKhcHMbub91KH8M3YKEraHWaWS7mRv7uovwLJfDKuR6twytDNKFGpLwR sx9bcAaJTg+TXdSVbNrsTyZyyXgzjljQ6uKb2mSU= Subject: Patch "maple_tree: refine ma_state init from mas_start()" has been added to the 6.2-stable tree To: Liam.Howlett@Oracle.com,Liam.Howlett@oracle.com,gregkh@linuxfoundation.org,linux-mm@kvack.org,maple-tree@lists.infradead.org,vernon2gm@gmail.com Cc: From: Date: Wed, 12 Apr 2023 10:12:09 +0200 In-Reply-To: <20230411151055.2910579-9-Liam.Howlett@oracle.com> Message-ID: <2023041209-unchanged-retaliate-5c64@gregkh> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit X-stable: commit X-Patchwork-Hint: ignore X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 350014001B X-Stat-Signature: qjmzuoepqe49iu9698mbprzixjhcti6s X-HE-Tag: 1681287152-928150 X-HE-Meta: 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 ad5habwX 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This is a note to let you know that I've just added the patch titled maple_tree: refine ma_state init from mas_start() to the 6.2-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: maple_tree-refine-ma_state-init-from-mas_start.patch and it can be found in the queue-6.2 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >From stable-owner@vger.kernel.org Tue Apr 11 17:13:00 2023 From: "Liam R. Howlett" Date: Tue, 11 Apr 2023 11:10:49 -0400 Subject: maple_tree: refine ma_state init from mas_start() To: Greg Kroah-Hartman , stable@vger.kernel.org Cc: maple-tree@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Liam R. Howlett" , Stable@vger.kernel.org, Vernon Yang , "Liam R . Howlett" Message-ID: <20230411151055.2910579-9-Liam.Howlett@oracle.com> From: "Liam R. Howlett" commit 46b345848261009477552d654cb2f65000c30e4d upstream. If mas->node is an MAS_START, there are three cases, and they all assign different values to mas->node and mas->offset. So there is no need to set them to a default value before updating. Update them directly to make them easier to understand and for better readability. Link: https://lkml.kernel.org/r/20221221060058.609003-7-vernon2gm@gmail.com Cc: Fixes: 54a611b60590 ("Maple Tree: add new data structure") Signed-off-by: Vernon Yang Signed-off-by: Liam R. Howlett Signed-off-by: Greg Kroah-Hartman --- lib/maple_tree.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -1339,7 +1339,7 @@ static void mas_node_count(struct ma_sta * mas_start() - Sets up maple state for operations. * @mas: The maple state. * - * If mas->node == MAS_START, then set the min, max, depth, and offset to + * If mas->node == MAS_START, then set the min, max and depth to * defaults. * * Return: @@ -1353,22 +1353,22 @@ static inline struct maple_enode *mas_st if (likely(mas_is_start(mas))) { struct maple_enode *root; - mas->node = MAS_NONE; mas->min = 0; mas->max = ULONG_MAX; mas->depth = 0; - mas->offset = 0; root = mas_root(mas); /* Tree with nodes */ if (likely(xa_is_node(root))) { mas->depth = 1; mas->node = mte_safe_root(root); + mas->offset = 0; return NULL; } /* empty tree */ if (unlikely(!root)) { + mas->node = MAS_NONE; mas->offset = MAPLE_NODE_SLOTS; return NULL; } Patches currently in stable-queue which might be from stable-owner@vger.kernel.org are queue-6.2/maple_tree-fix-potential-rcu-issue.patch queue-6.2/maple_tree-add-smp_rmb-to-dead-node-detection.patch queue-6.2/maple_tree-add-rcu-lock-checking-to-rcu-callback-functions.patch queue-6.2/maple_tree-fix-handle-of-invalidated-state-in-mas_wr_store_setup.patch queue-6.2/maple_tree-reduce-user-error-potential.patch queue-6.2/maple_tree-fix-mas_prev-and-mas_find-state-handling.patch queue-6.2/maple_tree-remove-gfp_zero-from-kmem_cache_alloc-and-kmem_cache_alloc_bulk.patch queue-6.2/maple_tree-be-more-cautious-about-dead-nodes.patch queue-6.2/mm-enable-maple-tree-rcu-mode-by-default.patch queue-6.2/maple_tree-detect-dead-nodes-in-mas_start.patch queue-6.2/maple_tree-fix-freeing-of-nodes-in-rcu-mode.patch queue-6.2/maple_tree-remove-extra-smp_wmb-from-mas_dead_leaves.patch queue-6.2/maple_tree-refine-ma_state-init-from-mas_start.patch