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Wed, 20 Jul 2022 09:47:50 +0000 (GMT) Received: from osiris (unknown [9.145.148.254]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Wed, 20 Jul 2022 09:47:50 +0000 (GMT) Date: Wed, 20 Jul 2022 11:47:49 +0200 From: Heiko Carstens To: Alexander Gordeev Cc: Matthew Wilcox , Alexander Egorenkov , Baoquan He , Christoph Hellwig , Vasily Gorbik , Al Viro , linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org Subject: Re: [PATCH v4 0/4] s390/crash: support multi-segment iterators Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: l5ViG2XHGvEEK2aOc7vE6w9Uk8HkBk53 X-Proofpoint-GUID: qnn1gR2zsL9LmXG2mKm9Z71nXqA38Lwa X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-07-20_05,2022-07-19_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 bulkscore=0 clxscore=1011 adultscore=0 mlxlogscore=746 priorityscore=1501 impostorscore=0 phishscore=0 spamscore=0 lowpriorityscore=0 malwarescore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2206140000 definitions=main-2207200039 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 19, 2022 at 07:16:32AM +0200, Alexander Gordeev wrote: > Hi Matthew et al, > > This series completes 5d8de293c224 ("vmcore: convert copy_oldmem_page() > to take an iov_iter") for s390. > > Changes since v3: > - concurrent access to HSA and oldmem swap buffers protected; > > Changes since v2: > - Matthew Wilcox suggestion is adopted, with that... > - copy_to_iter() is used instead of custom implementation; > > Changes since v1: > - number of bytes left to copy on fail fixed; > > Thanks! > > > Alexander Gordeev (4): > s390/zcore: fix race when reading from hardware system area > s390/crash: move copy_to_user_real() to crash_dump.c > s390/crash: use static swap buffer for copy_to_user_real() > s390/crash: support multi-segment iterators > > arch/s390/include/asm/os_info.h | 17 ++++- > arch/s390/include/asm/sclp.h | 4 +- > arch/s390/include/asm/uaccess.h | 1 - > arch/s390/kernel/crash_dump.c | 114 ++++++++------------------------ > arch/s390/mm/maccess.c | 26 -------- > drivers/s390/char/zcore.c | 55 ++++++++------- > 6 files changed, 71 insertions(+), 146 deletions(-) FWIW, Acked-by: Heiko Carstens