From nobody Thu Apr 2 22:08:39 2026 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 DA625357A37; Fri, 13 Feb 2026 11:01:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770980509; cv=none; b=XXA48fOctLEkyp/Bx/HESkSuRMLF60SA1RSjQW5j5ufY4r00D2YMwu3PxDVnbMGrnkhngBfidSEUMZOTC3V2Cu8Xg8P0aRthvus6+b1B+N1uW5ganq7DuVAZFrP8ARDRJ95TqOcGLfnIHjV5SFeX5vKo6wF2AR4DCznJieFekR4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770980509; c=relaxed/simple; bh=lLHCx9P2BGRiklcIEpDq8X8RZoaLfrXAcvZBoAlyAtI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=nDblARFQqLvlcgjANbQrOODAR+qCcasOYymevjXX+kBdqo7GmFat6rmZ/pLdo0QFDMysaM8Fd+7i8qR8Ja1l67h/WC5Ky4YLVYYdgUuAhqjSaWQpk1trcJGxVZNHUkb7f2cn5OcSxo47CjCatwfXkHCD+atMpMG0knwITXeSR70= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YHIyne8u; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YHIyne8u" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 21A2DC116C6; Fri, 13 Feb 2026 11:01:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770980509; bh=lLHCx9P2BGRiklcIEpDq8X8RZoaLfrXAcvZBoAlyAtI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YHIyne8uJHWl2oQrXX9a8i0T+gEfSU4DbwT5MkL9tbvrlHnCpXaeWg1fWMW2DAy/O T4U383e/7A3coRlaSbJk8qDhyfY45qLdaiMDZwcmn7Tm7vMn7YMyWWtcbUtNF09HcA 4MsY663jgdfIpOnjgr9MWhATxlOJdTN4ZVxJ3gjmG1Y8WHsm/D/QchOT0c+DfeTfaD TPf1ZbthhZRqI1dR4TgzueYzhMYkVwX7bOJbMnHRsOJk8OXNBYzlJcuf1FRL+/jaiI IJ9m+o4gwrwdYhK6KYu5Br8GR7IDRX1foHsfwCQMWQs2ZluChz5vlgujeKMIrwrJ8K PNsrHPtO4CzDQ== From: Leon Romanovsky To: Jason Gunthorpe , Leon Romanovsky , Selvin Xavier , Kalesh AP , Potnuri Bharat Teja , Michael Margolin , Gal Pressman , Yossi Leybovich , Cheng Xu , Kai Shen , Chengchang Tang , Junxian Huang , Abhijit Gangurde , Allen Hubbe , Krzysztof Czurylo , Tatyana Nikolova , Long Li , Konstantin Taranov , Yishai Hadas , Michal Kalderon , Bryan Tan , Vishnu Dasa , Broadcom internal kernel review list , Christian Benvenuti , Nelson Escobar , Dennis Dalessandro , Bernard Metzler , Zhu Yanjun Cc: linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, linux-hyperv@vger.kernel.org Subject: [PATCH rdma-next 47/50] RDMA/mlx5: Use generic resize-CQ lock Date: Fri, 13 Feb 2026 12:58:23 +0200 Message-ID: <20260213-refactor-umem-v1-47-f3be85847922@nvidia.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260213-refactor-umem-v1-0-f3be85847922@nvidia.com> References: <20260213-refactor-umem-v1-0-f3be85847922@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Mailer: b4 0.15-dev-47773 Content-Transfer-Encoding: quoted-printable From: Leon Romanovsky Replace the open=E2=80=91coded resize=E2=80=91CQ lock with the standard core implementation for better consistency and maintainability. Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/mlx5/cq.c | 8 +------- drivers/infiniband/hw/mlx5/mlx5_ib.h | 3 --- 2 files changed, 1 insertion(+), 10 deletions(-) diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/c= q.c index 78c3494517d7..f7fb6f4aef7d 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -972,7 +972,6 @@ int mlx5_ib_create_user_cq(struct ib_cq *ibcq, return -EINVAL; =20 cq->ibcq.cqe =3D entries - 1; - mutex_init(&cq->resize_mutex); spin_lock_init(&cq->lock); if (attr->flags & IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION) cq->private_flags |=3D MLX5_IB_CQ_PR_TIMESTAMP_COMPLETION; @@ -1057,7 +1056,6 @@ int mlx5_ib_create_cq(struct ib_cq *ibcq, const struc= t ib_cq_init_attr *attr, return -EINVAL; =20 cq->ibcq.cqe =3D entries - 1; - mutex_init(&cq->resize_mutex); spin_lock_init(&cq->lock); INIT_LIST_HEAD(&cq->list_send_qp); INIT_LIST_HEAD(&cq->list_recv_qp); @@ -1284,10 +1282,9 @@ int mlx5_ib_resize_cq(struct ib_cq *ibcq, unsigned i= nt entries, if (entries =3D=3D ibcq->cqe + 1) return 0; =20 - mutex_lock(&cq->resize_mutex); err =3D resize_user(dev, cq, entries, udata, &cqe_size); if (err) - goto ex; + return err; =20 page_size =3D mlx5_umem_find_best_cq_quantized_pgoff( cq->resize_umem, cqc, log_page_size, MLX5_ADAPTER_PAGE_SHIFT, @@ -1339,7 +1336,6 @@ int mlx5_ib_resize_cq(struct ib_cq *ibcq, unsigned in= t entries, ib_umem_release(cq->ibcq.umem); cq->ibcq.umem =3D cq->resize_umem; cq->resize_umem =3D NULL; - mutex_unlock(&cq->resize_mutex); =20 kvfree(in); return 0; @@ -1350,8 +1346,6 @@ int mlx5_ib_resize_cq(struct ib_cq *ibcq, unsigned in= t entries, ex_resize: ib_umem_release(cq->resize_umem); cq->resize_umem =3D NULL; -ex: - mutex_unlock(&cq->resize_mutex); return err; } =20 diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/m= lx5/mlx5_ib.h index e99a647ed62d..7b34f32b5ecb 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -574,9 +574,6 @@ struct mlx5_ib_cq { */ spinlock_t lock; =20 - /* protect resize cq - */ - struct mutex resize_mutex; struct mlx5_ib_cq_buf *resize_buf; struct ib_umem *resize_umem; int cqe_size; --=20 2.52.0