From nobody Mon Feb 9 03:45:59 2026 Received: from out-177.mta1.migadu.com (out-177.mta1.migadu.com [95.215.58.177]) (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 EE9A9134B3 for ; Fri, 8 Dec 2023 10:07:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="YI4Ys7tc" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1702030031; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JnbSdTuMzvRHFVF3Or97xjxKbwAqZ9CUUOvAnr9/aVY=; b=YI4Ys7tcQWIX/Uq/4yDeLjCtqtU76h7QYJq/RHV+SxmDve5Dp00/evBTaRWxrHGK8CtDW7 8yaDJDUJRNWjBDg9BQyvBJ0siAaeuFfCiIlDJtV3x82xuyqw+zbtVDnXz7rCw2nn7Vbt/Q 8Ht/IKh/ZTHc45FQ+AX0AwjkisWvUL0= From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next v14 03/25] mptcp: use pernet id_bitmap in userspace pm Date: Fri, 8 Dec 2023 18:07:16 +0800 Message-Id: <0a089c38b045c6bed01d4a7f53d9a14aa960ea34.1702029538.git.geliang.tang@linux.dev> In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" This patch uses pm_nl_get_pernet_from_msk() to get the pernet id_bitmap instead of using a local bitmap when appending a new local address into the userspace PM local address list. Signed-off-by: Geliang Tang --- net/mptcp/pm_userspace.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c index efecbe3cf415..b3a606a5e182 100644 --- a/net/mptcp/pm_userspace.c +++ b/net/mptcp/pm_userspace.c @@ -28,7 +28,7 @@ void mptcp_free_local_addr_list(struct mptcp_sock *msk) static int mptcp_userspace_pm_append_new_local_addr(struct mptcp_sock *msk, struct mptcp_pm_addr_entry *entry) { - DECLARE_BITMAP(id_bitmap, MPTCP_PM_MAX_ADDR_ID + 1); + struct pm_nl_pernet *pernet =3D pm_nl_get_pernet_from_msk(msk); struct mptcp_pm_addr_entry *match =3D NULL; struct sock *sk =3D (struct sock *)msk; struct mptcp_pm_addr_entry *e; @@ -36,8 +36,6 @@ static int mptcp_userspace_pm_append_new_local_addr(struc= t mptcp_sock *msk, bool id_match =3D false; int ret =3D -EINVAL; =20 - bitmap_zero(id_bitmap, MPTCP_PM_MAX_ADDR_ID + 1); - spin_lock_bh(&msk->pm.lock); list_for_each_entry(e, &msk->pm.userspace_pm_local_addr_list, list) { addr_match =3D mptcp_addresses_equal(&e->addr, &entry->addr, true); @@ -50,7 +48,6 @@ static int mptcp_userspace_pm_append_new_local_addr(struc= t mptcp_sock *msk, } else if (addr_match || id_match) { break; } - __set_bit(e->addr.id, id_bitmap); } =20 if (!match && !addr_match && !id_match) { @@ -65,9 +62,10 @@ static int mptcp_userspace_pm_append_new_local_addr(stru= ct mptcp_sock *msk, =20 *e =3D *entry; if (!e->addr.id) - e->addr.id =3D find_next_zero_bit(id_bitmap, + e->addr.id =3D find_next_zero_bit(pernet->id_bitmap, MPTCP_PM_MAX_ADDR_ID + 1, 1); + __set_bit(e->addr.id, pernet->id_bitmap); list_add_tail_rcu(&e->list, &msk->pm.userspace_pm_local_addr_list); msk->pm.local_addr_used++; ret =3D e->addr.id; --=20 2.35.3