From mboxrd@z Thu Jan 1 00:00:00 1970 From: john.hubbard@gmail.com Date: Fri, 02 Aug 2019 02:19:46 +0000 Subject: [PATCH 15/34] staging/vc04_services: convert put_page() to put_user_page*() Message-Id: <20190802022005.5117-16-jhubbard@nvidia.com> List-Id: References: <20190802022005.5117-1-jhubbard@nvidia.com> In-Reply-To: <20190802022005.5117-1-jhubbard@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Andrew Morton Cc: Christoph Hellwig , Dan Williams , Dave Chinner , Dave Hansen , Ira Weiny , Jan Kara , Jason Gunthorpe , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , LKML , amd-gfx@lists.freedesktop.org, ceph-devel@vger.kernel.org, devel@driverdev.osuosl.org, devel@lists.orangefs.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-block@vger.kernel.org, linux-crypto@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-media@vger.kernel.org, linux-mm@kvack.org, linux-nfs@vger.kernel.or From: John Hubbard For pages that were retained via get_user_pages*(), release those pages via the new put_user_page*() routines, instead of via put_page() or release_pages(). This is part a tree-wide conversion, as described in commit fc1d8e7cca2d ("mm: introduce put_user_page*(), placeholder versions"). Cc: Eric Anholt Cc: Stefan Wahren Cc: Greg Kroah-Hartman Cc: Mihaela Muraru Cc: Suniel Mahesh Cc: Al Viro Cc: Sidong Yang Cc: Kishore KP Cc: linux-rpi-kernel@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: devel@driverdev.osuosl.org Signed-off-by: John Hubbard --- .../vc04_services/interface/vchiq_arm/vchiq_2835_arm.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c index 61c69f353cdb..ec92b4c50e95 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c @@ -336,10 +336,7 @@ cleanup_pagelistinfo(struct vchiq_pagelist_info *pagelistinfo) } if (pagelistinfo->pages_need_release) { - unsigned int i; - - for (i = 0; i < pagelistinfo->num_pages; i++) - put_page(pagelistinfo->pages[i]); + put_user_pages(pagelistinfo->pages, pagelistinfo->num_pages); } dma_free_coherent(g_dev, pagelistinfo->pagelist_buffer_size, @@ -454,10 +451,7 @@ create_pagelist(char __user *buf, size_t count, unsigned short type) __func__, actual_pages, num_pages); /* This is probably due to the process being killed */ - while (actual_pages > 0) { - actual_pages--; - put_page(pages[actual_pages]); - } + put_user_pages(pages, actual_pages); cleanup_pagelistinfo(pagelistinfo); return NULL; } -- 2.22.0