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Tue, 22 Oct 2019 17:15:41 +0000 (UTC) Received: from t460s.redhat.com (ovpn-116-248.ams2.redhat.com [10.36.116.248]) by smtp.corp.redhat.com (Postfix) with ESMTP id 903AE5DA8D; Tue, 22 Oct 2019 17:15:17 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, David Hildenbrand , Michal Hocko , Andrew Morton , kvm-ppc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, linux-hyperv@vger.kernel.org, devel@driverdev.osuosl.org, xen-devel@lists.xenproject.org, x86@kernel.org, Alexander Duyck , Alexander Duyck , Alex Williamson , Allison Randal , Andy Lutomirski , "Aneesh Kumar K.V" , Anshuman Khandual , Anthony Yznaga , Ben Chan , Benjamin Herrenschmidt , Borislav Petkov , Boris Ostrovsky , Christophe Leroy , Cornelia Huck , Dan Carpenter , Dan Williams , Dave Hansen , Fabio Estevam , Greg Kroah-Hartman , Haiyang Zhang , "H. Peter Anvin" , Ingo Molnar , "Isaac J. Manjarres" , Jeremy Sowden , Jim Mattson , Joerg Roedel , Johannes Weiner , Juergen Gross , KarimAllah Ahmed , Kate Stewart , Kees Cook , "K. Y. Srinivasan" , Madhumitha Prabakaran , Matt Sickler , Mel Gorman , Michael Ellerman , Michal Hocko , Mike Rapoport , Mike Rapoport , Nicholas Piggin , Nishka Dasgupta , Oscar Salvador , Paolo Bonzini , Paul Mackerras , Paul Mackerras , Pavel Tatashin , Pavel Tatashin , Peter Zijlstra , Qian Cai , =?utf-8?b?UmFkaW0gS3LEjW3DocWZ?= , Rob Springer , Sasha Levin , Sean Christopherson , =?utf-8?q?Simon_Sand?= =?utf-8?q?str=C3=B6m?= , Stefano Stabellini , Stephen Hemminger , Thomas Gleixner , Todd Poynor , Vandana BN , Vitaly Kuznetsov , Vlastimil Babka , Wanpeng Li , YueHaibing Subject: [PATCH RFC v1 07/12] staging: kpc2000: Prepare transfer_complete_cb() for PG_reserved changes Date: Tue, 22 Oct 2019 19:12:34 +0200 Message-Id: <20191022171239.21487-8-david@redhat.com> In-Reply-To: <20191022171239.21487-1-david@redhat.com> References: <20191022171239.21487-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: hQ4mXGwAP7eWs8CpMKPvnw-1 X-Mimecast-Spam-Score: 0 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: Right now, ZONE_DEVICE memory is always set PG_reserved. We want to change that. The pages are obtained via get_user_pages_fast(). I assume, these could be ZONE_DEVICE pages. Let's just exclude them as well explicitly. Cc: Greg Kroah-Hartman Cc: Vandana BN Cc: "Simon Sandström" Cc: Dan Carpenter Cc: Nishka Dasgupta Cc: Madhumitha Prabakaran Cc: Fabio Estevam Cc: Matt Sickler Cc: Jeremy Sowden Signed-off-by: David Hildenbrand --- drivers/staging/kpc2000/kpc_dma/fileops.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/kpc2000/kpc_dma/fileops.c b/drivers/staging/kpc2000/kpc_dma/fileops.c index cb52bd9a6d2f..457adcc81fe6 100644 --- a/drivers/staging/kpc2000/kpc_dma/fileops.c +++ b/drivers/staging/kpc2000/kpc_dma/fileops.c @@ -212,7 +212,8 @@ void transfer_complete_cb(struct aio_cb_data *acd, size_t xfr_count, u32 flags) BUG_ON(acd->ldev->pldev == NULL); for (i = 0 ; i < acd->page_count ; i++) { - if (!PageReserved(acd->user_pages[i])) { + if (!PageReserved(acd->user_pages[i]) && + !is_zone_device_page(acd->user_pages[i])) { set_page_dirty(acd->user_pages[i]); } }