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Date: Thu, 1 Aug 2019 19:19:46 -0700 From: john.hubbard@...il.com To: Andrew Morton <akpm@...ux-foundation.org> Cc: Christoph Hellwig <hch@...radead.org>, Dan Williams <dan.j.williams@...el.com>, Dave Chinner <david@...morbit.com>, Dave Hansen <dave.hansen@...ux.intel.com>, Ira Weiny <ira.weiny@...el.com>, Jan Kara <jack@...e.cz>, Jason Gunthorpe <jgg@...pe.ca>, Jérôme Glisse <jglisse@...hat.com>, LKML <linux-kernel@...r.kernel.org>, amd-gfx@...ts.freedesktop.org, ceph-devel@...r.kernel.org, devel@...verdev.osuosl.org, devel@...ts.orangefs.org, dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org, kvm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-block@...r.kernel.org, linux-crypto@...r.kernel.org, linux-fbdev@...r.kernel.org, linux-fsdevel@...r.kernel.org, linux-media@...r.kernel.org, linux-mm@...ck.org, linux-nfs@...r.kernel.org, linux-rdma@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org, linux-xfs@...r.kernel.org, netdev@...r.kernel.org, rds-devel@....oracle.com, sparclinux@...r.kernel.org, x86@...nel.org, xen-devel@...ts.xenproject.org, John Hubbard <jhubbard@...dia.com>, Eric Anholt <eric@...olt.net>, Stefan Wahren <stefan.wahren@...e.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Mihaela Muraru <mihaela.muraru21@...il.com>, Suniel Mahesh <sunil.m@...hveda.org>, Al Viro <viro@...iv.linux.org.uk>, Sidong Yang <realwakka@...il.com>, Kishore KP <kishore.p@...hveda.org> Subject: [PATCH 15/34] staging/vc04_services: convert put_page() to put_user_page*() From: John Hubbard <jhubbard@...dia.com> 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 <eric@...olt.net> Cc: Stefan Wahren <stefan.wahren@...e.com> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: Mihaela Muraru <mihaela.muraru21@...il.com> Cc: Suniel Mahesh <sunil.m@...hveda.org> Cc: Al Viro <viro@...iv.linux.org.uk> Cc: Sidong Yang <realwakka@...il.com> Cc: Kishore KP <kishore.p@...hveda.org> Cc: linux-rpi-kernel@...ts.infradead.org Cc: linux-arm-kernel@...ts.infradead.org Cc: devel@...verdev.osuosl.org Signed-off-by: John Hubbard <jhubbard@...dia.com> --- .../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
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