From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= Subject: [PATCH bpf-next 8/8] xsk: convert atomic_t to refcount_t Date: Tue, 22 May 2018 09:35:03 +0200 Message-ID: <20180522073503.2199-9-bjorn.topel@gmail.com> References: <20180522073503.2199-1-bjorn.topel@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= To: magnus.karlsson@intel.com, magnus.karlsson@gmail.com, ast@fb.com, daniel@iogearbox.net, netdev@vger.kernel.org Return-path: Received: from mga05.intel.com ([192.55.52.43]:21743 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751676AbeEVHfW (ORCPT ); Tue, 22 May 2018 03:35:22 -0400 In-Reply-To: <20180522073503.2199-1-bjorn.topel@gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Björn Töpel Introduce refcount_t, in favor of atomic_t. Signed-off-by: Björn Töpel --- net/xdp/xdp_umem.c | 6 +++--- net/xdp/xdp_umem.h | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c index faa6ffbaf6ab..87998818116f 100644 --- a/net/xdp/xdp_umem.c +++ b/net/xdp/xdp_umem.c @@ -78,7 +78,7 @@ static void xdp_umem_release_deferred(struct work_struct *work) void xdp_get_umem(struct xdp_umem *umem) { - atomic_inc(&umem->users); + refcount_inc(&umem->users); } void xdp_put_umem(struct xdp_umem *umem) @@ -86,7 +86,7 @@ void xdp_put_umem(struct xdp_umem *umem) if (!umem) return; - if (atomic_dec_and_test(&umem->users)) { + if (refcount_dec_and_test(&umem->users)) { INIT_WORK(&umem->work, xdp_umem_release_deferred); schedule_work(&umem->work); } @@ -206,7 +206,7 @@ static int xdp_umem_reg(struct xdp_umem *umem, struct xdp_umem_reg *mr) umem->frame_size_log2 = ilog2(frame_size); umem->nfpp_mask = nfpp - 1; umem->nfpplog2 = ilog2(nfpp); - atomic_set(&umem->users, 1); + refcount_set(&umem->users, 1); err = xdp_umem_account_pages(umem); if (err) diff --git a/net/xdp/xdp_umem.h b/net/xdp/xdp_umem.h index 9802287ff19d..0881cf456230 100644 --- a/net/xdp/xdp_umem.h +++ b/net/xdp/xdp_umem.h @@ -27,7 +27,7 @@ struct xdp_umem { struct pid *pid; unsigned long address; size_t size; - atomic_t users; + refcount_t users; struct work_struct work; }; -- 2.14.1