Message ID | 20190807013340.9706-14-jhubbard@nvidia.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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[216.228.112.21]) by smtp.gmail.com with ESMTPSA id u69sm111740800pgu.77.2019.08.06.18.34.03 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Tue, 06 Aug 2019 18:34:04 -0700 (PDT) From: john.hubbard@gmail.com X-Google-Original-From: jhubbard@nvidia.com To: Andrew Morton <akpm@linux-foundation.org> Cc: Christoph Hellwig <hch@infradead.org>, Dan Williams <dan.j.williams@intel.com>, Dave Chinner <david@fromorbit.com>, Dave Hansen <dave.hansen@linux.intel.com>, Ira Weiny <ira.weiny@intel.com>, Jan Kara <jack@suse.cz>, Jason Gunthorpe <jgg@ziepe.ca>, =?utf-8?b?SsOpcsO0?= =?utf-8?b?bWUgR2xpc3Nl?= <jglisse@redhat.com>, LKML <linux-kernel@vger.kernel.org>, 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.org, linux-rdma@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-xfs@vger.kernel.org, netdev@vger.kernel.org, rds-devel@oss.oracle.com, sparclinux@vger.kernel.org, x86@kernel.org, xen-devel@lists.xenproject.org, John Hubbard <jhubbard@nvidia.com>, Sudeep Dutt <sudeep.dutt@intel.com>, Ashutosh Dixit <ashutosh.dixit@intel.com>, Arnd Bergmann <arnd@arndb.de>, Joerg Roedel <jroedel@suse.de>, Robin Murphy <robin.murphy@arm.com>, Zhen Lei <thunder.leizhen@huawei.com> Subject: [PATCH v3 13/41] scif: convert put_page() to put_user_page*() Date: Tue, 6 Aug 2019 18:33:12 -0700 Message-Id: <20190807013340.9706-14-jhubbard@nvidia.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190807013340.9706-1-jhubbard@nvidia.com> References: <20190807013340.9706-1-jhubbard@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: 8bit X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: <linux-mm.kvack.org> X-Virus-Scanned: ClamAV using ClamSMTP |
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put_user_pages(): miscellaneous call sites
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expand
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diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c index 01e27682ea30..d84ed9466920 100644 --- a/drivers/misc/mic/scif/scif_rma.c +++ b/drivers/misc/mic/scif/scif_rma.c @@ -113,13 +113,14 @@ static int scif_destroy_pinned_pages(struct scif_pinned_pages *pin) int writeable = pin->prot & SCIF_PROT_WRITE; int kernel = SCIF_MAP_KERNEL & pin->map_flags; - for (j = 0; j < pin->nr_pages; j++) { - if (pin->pages[j] && !kernel) { + if (kernel) { + for (j = 0; j < pin->nr_pages; j++) { if (writeable) - SetPageDirty(pin->pages[j]); + set_page_dirty_lock(pin->pages[j]); put_page(pin->pages[j]); } - } + } else + put_user_pages_dirty_lock(pin->pages, pin->nr_pages, writeable); scif_free(pin->pages, pin->nr_pages * sizeof(*pin->pages)); @@ -1385,11 +1386,9 @@ int __scif_pin_pages(void *addr, size_t len, int *out_prot, if (ulimit) __scif_dec_pinned_vm_lock(mm, nr_pages); /* Roll back any pinned pages */ - for (i = 0; i < pinned_pages->nr_pages; i++) { - if (pinned_pages->pages[i]) - put_page( - pinned_pages->pages[i]); - } + put_user_pages(pinned_pages->pages, + pinned_pages->nr_pages); + prot &= ~SCIF_PROT_WRITE; try_upgrade = false; goto retry;