From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from Chamillionaire.breakpoint.cc (Chamillionaire.breakpoint.cc [91.216.245.30]) (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 CD6AE567D for ; Fri, 11 Oct 2024 01:09:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.216.245.30 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728608950; cv=none; b=UT5QVjSwGoTRG4hZCLJ2+IRYnQ9F6yb/iTeo56rMkw4H7G9Of0StPw9/i6PncJa6sUZMGVHp/ClqNfGrk+gSetNlIxTNzWYQFAynOW5WOa2FRPkiS//yk7G0gWBLJsk1u1qEalh50srEnq2MYK7P7OV1N+eV5u948zPsPBZH8sA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728608950; c=relaxed/simple; bh=jQLn/kI9vWu3bcU2YouagoDuRGHPKi4veLs8uAgwej4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=u1WysFP7JbP/kMRz+gzrX7TO4FUhs8NbijF0dyJ+M13QYgsuFFXliTfoft8I4Plw9CbXD/E5YpPi6yngNpSF8T3+poh8i+Yjg8ITbqXKeZDWP2nfb5tfLYup+68IMx50ShzVpdVsDmQaaVt85tTI9talt3cpdUkCK/c6Cfwmcvs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=strlen.de; spf=pass smtp.mailfrom=breakpoint.cc; arc=none smtp.client-ip=91.216.245.30 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=strlen.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=breakpoint.cc Received: from fw by Chamillionaire.breakpoint.cc with local (Exim 4.92) (envelope-from ) id 1sz49T-0006yB-39; Fri, 11 Oct 2024 03:09:07 +0200 From: Florian Westphal To: Cc: Florian Westphal Subject: [PATCH nf-next v2 2/5] netfilter: nf_tables: add nft_trans_commit_list_add_elem helper Date: Fri, 11 Oct 2024 02:33:00 +0200 Message-ID: <20241011003315.5017-3-fw@strlen.de> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241011003315.5017-1-fw@strlen.de> References: <20241011003315.5017-1-fw@strlen.de> Precedence: bulk X-Mailing-List: netfilter-devel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add and use a wrapper to append trans_elem structures to the transaction log. Unlike the existing helper, pass a gfp_t to indicate if sleeping is allowed. This will be used by a followup patch to realloc nft_trans_elem structures after they gain a flexible array member to reduce number of such container structures on the transaction list. Signed-off-by: Florian Westphal --- net/netfilter/nf_tables_api.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 2f85f4a10c50..8afcd24f9901 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -421,6 +421,17 @@ static void nft_trans_commit_list_add_tail(struct net *net, struct nft_trans *tr } } +static void nft_trans_commit_list_add_elem(struct net *net, struct nft_trans *trans, + gfp_t gfp) +{ + WARN_ON_ONCE(trans->msg_type != NFT_MSG_NEWSETELEM && + trans->msg_type != NFT_MSG_DELSETELEM); + + might_alloc(gfp); + + nft_trans_commit_list_add_tail(net, trans); +} + static int nft_trans_table_add(struct nft_ctx *ctx, int msg_type) { struct nft_trans *trans; @@ -7183,7 +7194,7 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set, if (update_flags) { nft_trans_elem_priv(trans) = elem_priv; nft_trans_elem_update_flags(trans) = update_flags; - nft_trans_commit_list_add_tail(ctx->net, trans); + nft_trans_commit_list_add_elem(ctx->net, trans, GFP_KERNEL); goto err_elem_free; } } @@ -7207,7 +7218,7 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set, } nft_trans_elem_priv(trans) = elem.priv; - nft_trans_commit_list_add_tail(ctx->net, trans); + nft_trans_commit_list_add_elem(ctx->net, trans, GFP_KERNEL); return 0; err_set_full: @@ -7424,7 +7435,7 @@ static int nft_del_setelem(struct nft_ctx *ctx, struct nft_set *set, nft_setelem_data_deactivate(ctx->net, set, elem.priv); nft_trans_elem_priv(trans) = elem.priv; - nft_trans_commit_list_add_tail(ctx->net, trans); + nft_trans_commit_list_add_elem(ctx->net, trans, GFP_KERNEL); return 0; fail_ops: @@ -7460,7 +7471,7 @@ static int nft_setelem_flush(const struct nft_ctx *ctx, nft_setelem_data_deactivate(ctx->net, set, elem_priv); nft_trans_elem_set(trans) = set; nft_trans_elem_priv(trans) = elem_priv; - nft_trans_commit_list_add_tail(ctx->net, trans); + nft_trans_commit_list_add_elem(ctx->net, trans, GFP_ATOMIC); return 0; } @@ -7477,7 +7488,7 @@ static int __nft_set_catchall_flush(const struct nft_ctx *ctx, nft_setelem_data_deactivate(ctx->net, set, elem_priv); nft_trans_elem_priv(trans) = elem_priv; - nft_trans_commit_list_add_tail(ctx->net, trans); + nft_trans_commit_list_add_elem(ctx->net, trans, GFP_KERNEL); return 0; } -- 2.45.2