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 2BF711E1C02; Thu, 12 Mar 2026 13:40:11 +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=1773322812; cv=none; b=qtl0uOMqYKnmUyB95mboTrhxkcwIjxkbFFQY3U4nN/BCvP/nrsT1sM8k1UF5Y0veHoRNVUotMjI8RTSn168xE+Tx40X4Sb1Sv6BvqBIggHvHEckdoBxcVobJWOzMWPJg4zR/3cJ67AErBhVJX4/FAW8HwDtMYcP99rH0ZVHRPpI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773322812; c=relaxed/simple; bh=NAQQQ4XCwdK4jorQMuJg8WmK5muqJKwiYeyxhApv0yE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=NUomWOOmCsPw4W8X3PMZC+PgtBhilrvLX8B8TiBjO0x29PjKMo1lKBs1P24C4qtzfJJBJNI1W9bA7GsdaZc5GojSQUuld6vrtr2O06X8Rgnghgnv+nOsG8eWkT9YSfZP5bUTKoWuH0bEXIIF0yeWUE4SjnVbC1Y+dIgoROGXK3s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rWNQ2/pQ; 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="rWNQ2/pQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E2344C4CEF7; Thu, 12 Mar 2026 13:40:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773322811; bh=NAQQQ4XCwdK4jorQMuJg8WmK5muqJKwiYeyxhApv0yE=; h=From:To:Cc:Subject:Date:From; b=rWNQ2/pQNpEtVigYTlQ0sIQCEDScj4mHKZdORFyoRC8ZCdW5fB0ZrZztnAxVFdhlo DbxCSCtRIrxSs70gX9VBzK62B8P4RostfKsNh08vf5P/GBUwY0QJV8GurXJBkZG4cn FqzpiHX4E3MwQUQ4XZB+WjB/1Qg+nLGVc4WEzDFw4thxhmdVE4j/LpwViD3+NuzjtA ZdzSiYTAYY0fNFmgBGs4EJg5hWcZvREH/MbpB7V+oeAglD54yyzt13MHJB9Hi4Cb8t 7lmkh/XCC+khTyOFsYNnqsjp7msvBXRv0B6JdypxSkbPPj44Kud3cXcBafIkJqW4eH bZ9VABe8EE1bA== From: Chuck Lever To: NeilBrown , Jeff Layton , Olga Kornievskaia , Dai Ngo , Tom Talpey , Leon Romanovsky , Christoph Hellwig Cc: , , Chuck Lever Subject: [PATCH v2 0/2] RDMA/rw: Fix MR pool exhaustion in bvec RDMA READ path Date: Thu, 12 Mar 2026 09:40:06 -0400 Message-ID: <20260312134008.7387-1-cel@kernel.org> X-Mailer: git-send-email 2.52.0 Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Chuck Lever This series now carries the original fix with review comments addressed, and a proposal for using contiguous pages for RDMA Read sink buffers in svcrdma. IMO the fix patch should go into 7.0-rc, and the RDMA Read behavior change can wait for the next merge window. Base commit: v7.0-rc3 --- Changes since v1: - Clarify code comments - Allocate contiguous pages for RDMA Read sink buffers Chuck Lever (2): RDMA/rw: Fix MR pool exhaustion in bvec RDMA READ path svcrdma: Use contiguous pages for RDMA Read sink buffers drivers/infiniband/core/rw.c | 16 ++- net/sunrpc/xprtrdma/svc_rdma_rw.c | 220 ++++++++++++++++++++++++++++++ 2 files changed, 229 insertions(+), 7 deletions(-) -- 2.52.0