From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f45.google.com (mail-ej1-f45.google.com [209.85.218.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0587A1C1F12 for ; Wed, 20 Nov 2024 23:33:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.45 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732145592; cv=none; b=i7cQThuxJFQwT/hdXgUILgt2VwR0KEjUD+rxreOx6WOq67c/o7CatBpEYc7DQZKnKLbPg5CLv1E+s0GMWm9bXtZ2AHN32h/L751OGAkFZ/hd4urWwSGoSWRZBkC7gibHNlgO9/UYQo4HHowJq5tAh6OPaNdYpKjjPS3Ea8hgCJM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732145592; c=relaxed/simple; bh=1gdiLeCNSwVhK3nzWHMR4xFD8ClHJFNdvlyHODABro0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IixObkvaf8dz9XopKtF34LtVWpZpvA3m0fPkiSesjVeHd7iqPu+uHoXUKhVUx+aVY63er18NZW2EcT6HusHxhDq5eEftUNfz1eahIFijwDARFAT0+rHUCqQpH8NUcosWs2X5yvYhMqs7dHKeW2B2Wx7D4fOkeRuH6xsvUoqBJ1Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=moZgZTU9; arc=none smtp.client-ip=209.85.218.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="moZgZTU9" Received: by mail-ej1-f45.google.com with SMTP id a640c23a62f3a-a9aa8895facso51524066b.2 for ; Wed, 20 Nov 2024 15:33:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1732145589; x=1732750389; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=usEgNxoUAlzm7LvnyJowdrWjygvIn9+DGkjQ7Uu9NSo=; b=moZgZTU9sxZD//zIyJ55/YNE7uAHYiXLdZOC/lrcyOSOdc1JTmLaBqrSLxTDV2Adb4 NAj9JzmxhBra4cJoL5wCsASvneufzhT7IbXTI2ERxCDt4c37Az6CWT99gFDkgTybnwQy ZiUbWRUnRd1AF4XA1rPa4YQM2U/4sPKB5l/GdRcHSmUc2N0VH9OLaL7zRccS31elyUDt 3EsHk1YF4Bw2gmkgJmW7dBcduNbnOaYd7hb4IvM2/bxwst7xEVnhy/UzXXOmsnxz44Op 8G01OLcARPW7pvMOZ4+VYohEyRjDGG33ILxSN8bKw//puzD8iSiFOLp4To8mQvD0cblh Jotg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1732145589; x=1732750389; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=usEgNxoUAlzm7LvnyJowdrWjygvIn9+DGkjQ7Uu9NSo=; b=fWS8AcSqtcu0W+BbqpoA98S0b+IhSQuUHqeAc9HofgjgiYq3q6thSzSbRIP101UsOV xmEPLXqjJtpIBrJbhN5n8ihmjFunMkVMlNaZaE74uMavmHdoPK7k2WCt6aiow78oBJH2 mmlmnU/nq6q0XWPgRUFolxBMjJYVGkU7Oj8+v9ocFap/xmE4/Yn0ujf29Vhal6gfSaR5 VsN94iMJDwNimub9PAK6+DpVU0qnv3JP1vcchgK2DEZkTiqGuJNFBrEea4dQb+ZUDIj3 0cwifcpYI92JCnv9Bx8DQSTu65vYoAtHCvJR53pPrpld9XPCuuw3lOxf26x3rZ7AdESi 3Mhg== X-Gm-Message-State: AOJu0Yw0QaiR4VxpInMQIFU7EDG4De5kMMiktPEMsHJzeix085/4C17g O4nFZ50p5fHdQmLgP9FPqpDFl4M9YvmA+R7lXnhWsn7Y8iwItBeRq7hWjw== X-Gm-Gg: ASbGncu9NdwL5lUn6ES/nH8xWXHtO4Lo2lbvr8S6JDI7a+yq0ITymnOWh7HG5Q7ARzu 8yXYEWcRJ/oQV9Wo3GAX2zi14iBfK7MsRG/a2ghT3Kkpd6YH6gZMMFaFKHJy+qBuYKIBoNNtRwL U+HFax0slBajgaiY8+BQlvLK3a8jhX7OrVPCBXUqx9qOBG76VmfpSxeH9QFH/xDz8hLs8lDCU0S 0IiT+URVwJ9z1cfiozL+IAvzZ8XSg/uf+VxMFC00SGTC+Kl6M5PV1CASrFcAWhT X-Google-Smtp-Source: AGHT+IECLULtaQx4yVcVrZwGwqgVD+QoYNTQm7pgrSh+VWpVMZZXO//20z6LIYoQgZKa/d1KB8xGMw== X-Received: by 2002:a17:907:6eab:b0:a9a:7f92:782 with SMTP id a640c23a62f3a-aa4dd74b2eemr476852066b.52.1732145588951; Wed, 20 Nov 2024 15:33:08 -0800 (PST) Received: from 127.0.0.1localhost ([148.252.141.165]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-aa4f415372bsm12166066b.13.2024.11.20.15.33.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Nov 2024 15:33:08 -0800 (PST) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: asml.silence@gmail.com Subject: [PATCH 04/11] io_uring/memmap: flag regions with user pages Date: Wed, 20 Nov 2024 23:33:27 +0000 Message-ID: <0ff910962678b2b4d896d59f592d89181309e1b8.1732144783.git.asml.silence@gmail.com> X-Mailer: git-send-email 2.46.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit In preparation to kernel allocated regions add a flag telling if the region contains user pinned pages or not. Signed-off-by: Pavel Begunkov --- io_uring/memmap.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/io_uring/memmap.c b/io_uring/memmap.c index 21353ea09b39..f76bee5a861a 100644 --- a/io_uring/memmap.c +++ b/io_uring/memmap.c @@ -197,12 +197,16 @@ void *__io_uaddr_map(struct page ***pages, unsigned short *npages, enum { IO_REGION_F_VMAP = 1, + IO_REGION_F_USER_PINNED = 2, }; void io_free_region(struct io_ring_ctx *ctx, struct io_mapped_region *mr) { if (mr->pages) { - unpin_user_pages(mr->pages, mr->nr_pages); + if (mr->flags & IO_REGION_F_USER_PINNED) + unpin_user_pages(mr->pages, mr->nr_pages); + else + release_pages(mr->pages, mr->nr_pages); kvfree(mr->pages); } if ((mr->flags & IO_REGION_F_VMAP) && mr->ptr) @@ -259,7 +263,7 @@ int io_create_region(struct io_ring_ctx *ctx, struct io_mapped_region *mr, mr->pages = pages; mr->ptr = vptr; mr->nr_pages = nr_pages; - mr->flags |= IO_REGION_F_VMAP; + mr->flags |= IO_REGION_F_VMAP | IO_REGION_F_USER_PINNED; return 0; out_free: if (pages_accounted) -- 2.46.0