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 E016E430BA3; Sun, 1 Mar 2026 01:54:24 +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=1772330064; cv=none; b=k2uqpAxILPmhHIckQY3PxFrjo6X1yONVDJdU37oqPmYyp7WHB9ib0abS9W2WAw6K5cvRV1JB2fx4qIuaEffT9QiLg9NoSDw03aKQBiqJ7m39h38Z8chl4IkptLJDxLfyNu3hymZnf5tEr7XAxs1sM3ok4twLc0ULXWealMIHxNs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772330064; c=relaxed/simple; bh=MlVdY6HGiGK9KNYeaIYq86NIx1C+5S8gAoArW7dzpAU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Pj/U+vVdNWRyY7BeTDb2mlgbojuG6o31HvxuBI4iiqK3kQoqTJcG/K2B2kA7N/9pZBqdZ0hGwIkerJjHU5365nPHbAspgzyXDajCZF3ojMlTkJdDYUV0bLlzOB/LnUA3UIgYyX9QRi2z23pxHIOm8zxsx3kod7Kkb7SxcwxXFPM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=efpgoZ2d; 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="efpgoZ2d" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D980CC19421; Sun, 1 Mar 2026 01:54:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772330064; bh=MlVdY6HGiGK9KNYeaIYq86NIx1C+5S8gAoArW7dzpAU=; h=From:To:Cc:Subject:Date:From; b=efpgoZ2dEKVS3VzrZlFFwMLN7Ht2J/LWwWIGqh/PT2pc+ZZ2H6rOOoJbfuS079B6M td4ovGiAOMnzqfBnwQSll8NyL1GEUyPiY6Tz8CezErFXqoe+25oSgVrEvgxvh5DVgT GOLT87PLDkXooY0TOjYoafWxTK/rHIDF41GwdxW0/ktcDkg7iEXhZWG5E5WSxlV99V wzAzZyJRtibIYcKA8dRhRxWixy1ZgNsroOAS4qi7Ag1kVSg96dQ2D5cYUa5rmy7Jjl O+gtGmclE+j7Sqi0+ZTAjjCs6T6wEhKAXoITil9N/3Z0b/XROUbDybHa6ZMDukEMr2 pbBov5O4EXfEg== From: Sasha Levin To: stable@vger.kernel.org, metze@samba.org Cc: Steve French , Tom Talpey , Long Li , Namjae Jeon , linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, Steve French Subject: FAILED: Patch "smb: client: remove pointless sc->recv_io.credits.count rollback" failed to apply to 5.15-stable tree Date: Sat, 28 Feb 2026 20:54:22 -0500 Message-ID: <20260301015422.1721353-1-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Transfer-Encoding: 8bit The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From 6858531e5e8d68828eec349989cefce3f45a487f Mon Sep 17 00:00:00 2001 From: Stefan Metzmacher Date: Thu, 22 Jan 2026 18:16:51 +0100 Subject: [PATCH] smb: client: remove pointless sc->recv_io.credits.count rollback We either reach this code path before we call new_credits = manage_credits_prior_sending(sc), which means new_credits is still 0 or the connection is already broken as smbd_post_send() already called smbd_disconnect_rdma_connection(). This will also simplify further changes. Cc: # 6.18.x Cc: Steve French Cc: Tom Talpey Cc: Long Li Cc: Namjae Jeon Cc: linux-cifs@vger.kernel.org Cc: samba-technical@lists.samba.org Signed-off-by: Stefan Metzmacher Signed-off-by: Steve French --- fs/smb/client/smbdirect.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/fs/smb/client/smbdirect.c b/fs/smb/client/smbdirect.c index f2ae35a9f047f..c9fcd35e0c77a 100644 --- a/fs/smb/client/smbdirect.c +++ b/fs/smb/client/smbdirect.c @@ -1288,9 +1288,6 @@ static int smbd_post_send_iter(struct smbdirect_socket *sc, DMA_TO_DEVICE); mempool_free(request, sc->send_io.mem.pool); - /* roll back the granted receive credits */ - atomic_sub(new_credits, &sc->recv_io.credits.count); - err_alloc: atomic_inc(&sc->send_io.credits.count); wake_up(&sc->send_io.credits.wait_queue); -- 2.51.0