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bh=6TaUtlS7TeG92dcvMBbOIZkMmLyB09aVGWNeeSIZ3pY=; b=dBes2YfsxOd3HmZxRYLEMHGy3CoWkslcKBcLRid7bEzVVAesXh3wl4AoUjO5m7KYEZ qMtgUWU61jsfVDvKdk8mqinCScgvins0YXy+qBQICdep9e48oC7bylBX33IuxRndeIhO 5Ge4NodLJtx9nEAd2cmht5bBCSkoLsMUSfQHJNQYhEtW+nZa3S3iP1cS8Yc3SwAp/5Mp dVPBE05BQOMcZNem2w1zoTUxfwOQrOunXKcrwBV4igfuVyyOZouLxBzIkK+BG6WeArUG 6WLHPrp/Mo0lwdcyhBK44W8T1mXYYjSYmn8OH5E9tw4lJPW83d3OO7dYvI/sxv9eCmTO KZNw== X-Gm-Message-State: AJcUukee0A6ybWFiGnKFQVoe4KiOQ2YZBfhpRE69qsgIi3P6A42m8LNH HGrntcDWNfeqNwNDR4wRuxM= X-Google-Smtp-Source: ALg8bN7YE+bPCsEF6zRIwsShrpUAZIueHQ2KAFb4fOzxweLzlSCbHbZrB8/PRrputEX6DLtFQp2qqA== X-Received: by 2002:a63:e40c:: with SMTP id a12mr12404213pgi.28.1545657287533; Mon, 24 Dec 2018 05:14:47 -0800 (PST) Received: from jordon-HP-15-Notebook-PC ([106.51.18.181]) by smtp.gmail.com with ESMTPSA id q1sm49507262pgs.14.2018.12.24.05.14.44 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 24 Dec 2018 05:14:46 -0800 (PST) Date: Mon, 24 Dec 2018 18:48:41 +0530 From: Souptick Joarder To: akpm@linux-foundation.org, willy@infradead.org, mhocko@suse.com, kirill.shutemov@linux.intel.com, vbabka@suse.cz, riel@surriel.com, sfr@canb.auug.org.au, rppt@linux.vnet.ibm.com, peterz@infradead.org, linux@armlinux.org.uk, robin.murphy@arm.com, iamjoonsoo.kim@lge.com, treding@nvidia.com, keescook@chromium.org, m.szyprowski@samsung.com, stefanr@s5r6.in-berlin.de, hjc@rock-chips.com, heiko@sntech.de, airlied@linux.ie, oleksandr_andrushchenko@epam.com, joro@8bytes.org, pawel@osciak.com, kyungmin.park@samsung.com, mchehab@kernel.org, boris.ostrovsky@oracle.com, jgross@suse.com Subject: [PATCH v5 0/9] Use vm_insert_range Message-ID: <20181224131841.GA22017@jordon-HP-15-Notebook-PC> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181224_051458_758927_B2E26F63 X-CRM114-Status: UNSURE ( 7.56 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, xen-devel@lists.xen.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org, linux1394-devel@lists.sourceforge.net, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP v1 -> v2: Address review comment on mm/memory.c. Add EXPORT_SYMBOL for vm_insert_range and corrected the documentation part for this API. In drivers/gpu/drm/xen/xen_drm_front_gem.c, replace err with ret as suggested. In drivers/iommu/dma-iommu.c, handle the scenario of partial mmap() of large buffer by passing *pages + vma->vm_pgoff* to vm_insert_range(). v2 -> v3: Declaration of vm_insert_range() moved to include/linux/mm.h v3 -> v4: Address review comments. In mm/memory.c. Added error check. In arch/arm/mm/dma-mapping.c, remove part of error check as the similar is checked inside vm_insert_range. In rockchip/rockchip_drm_gem.c, vma->vm_pgoff is respected as this might be passed as non zero value considering partial mapping of large buffer. In iommu/dma-iommu.c, count is modifed as (count - vma->vm_pgoff) to handle partial mapping scenario in v2. v4 -> v5: Address review comment on [2/9] and [4/9] In arch/arm/mm/dma-mapping.c, added the error check which was removed in v4, as without those error check we might end up overrun the page array. In rockchip/rockchip_drm_gem.c, added error check which was removed in v1, as without this it might overrun page array. Adjusted page_count parameter before passing it to vm_insert_range(). Souptick Joarder (9): mm: Introduce new vm_insert_range API arch/arm/mm/dma-mapping.c: Convert to use vm_insert_range drivers/firewire/core-iso.c: Convert to use vm_insert_range drm/rockchip/rockchip_drm_gem.c: Convert to use vm_insert_range drm/xen/xen_drm_front_gem.c: Convert to use vm_insert_range iommu/dma-iommu.c: Convert to use vm_insert_range videobuf2/videobuf2-dma-sg.c: Convert to use vm_insert_range xen/gntdev.c: Convert to use vm_insert_range xen/privcmd-buf.c: Convert to use vm_insert_range arch/arm/mm/dma-mapping.c | 18 ++++------ drivers/firewire/core-iso.c | 15 ++------- drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 14 ++------ drivers/gpu/drm/xen/xen_drm_front_gem.c | 20 ++++------- drivers/iommu/dma-iommu.c | 13 ++----- drivers/media/common/videobuf2/videobuf2-dma-sg.c | 23 ++++--------- drivers/xen/gntdev.c | 11 +++--- drivers/xen/privcmd-buf.c | 8 ++--- include/linux/mm.h | 2 ++ mm/memory.c | 41 +++++++++++++++++++++++ mm/nommu.c | 7 ++++ 11 files changed, 83 insertions(+), 89 deletions(-)