From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5F07EFBE7 for ; Mon, 15 May 2023 16:45:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B804AC433EF; Mon, 15 May 2023 16:45:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684169154; bh=Out7mz0nSDzGRlzsKE9PRKa64oPDAhVXcHtvjNNon48=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jDtA3pZwLDvy6HEz1bdtPhl7mL0fIcOfxBD4IC/pf36h7NJuYKP6e9SxbJceOia5j 7/jGEN/zL46oRrXVgmttr8D+M0t4KUkj/AT5IdqW5DZOjODIDqMjFR8y0uw3grDK/A jObCZqh32uES56DMtRmQL3yh829yHtR3jXcqP524= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Maxim Korotkov , Jan Kara , Jens Axboe , Sasha Levin Subject: [PATCH 4.19 152/191] writeback: fix call of incorrect macro Date: Mon, 15 May 2023 18:26:29 +0200 Message-Id: <20230515161712.938800048@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161707.203549282@linuxfoundation.org> References: <20230515161707.203549282@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Maxim Korotkov [ Upstream commit 3e46c89c74f2c38e5337d2cf44b0b551adff1cb4 ] the variable 'history' is of type u16, it may be an error that the hweight32 macro was used for it I guess macro hweight16 should be used Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 2a81490811d0 ("writeback: implement foreign cgroup inode detection") Signed-off-by: Maxim Korotkov Reviewed-by: Jan Kara Link: https://lore.kernel.org/r/20230119104443.3002-1-korotkov.maxim.s@gmail.com Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin --- fs/fs-writeback.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 4d687e2e23735..61dc0dc139f87 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -702,7 +702,7 @@ void wbc_detach_inode(struct writeback_control *wbc) * is okay. The main goal is avoiding keeping an inode on * the wrong wb for an extended period of time. */ - if (hweight32(history) > WB_FRN_HIST_THR_SLOTS) + if (hweight16(history) > WB_FRN_HIST_THR_SLOTS) inode_switch_wbs(inode, max_id); } -- 2.39.2