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Fri, 10 Jul 2026 08:40:43 +0000 (GMT) Received: from localhost (unknown [9.111.0.64]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTPS; Fri, 10 Jul 2026 08:40:43 +0000 (GMT) Date: Fri, 10 Jul 2026 10:40:42 +0200 From: Vasily Gorbik To: Sven Schnelle Cc: Heiko Carstens , Alexander Gordeev , Janosch Frank , Claudio Imbrenda , borntraeger@linux.ibm.com, linux-s390@vger.kernel.org Subject: Re: [PATCH 0/2] s390: Remove PIF_GUEST_FAULT and add PER trap flag Message-ID: References: <20260709195500.1241833-1-svens@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20260709195500.1241833-1-svens@linux.ibm.com> X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=Q/XiJY2a c=1 sm=1 tr=0 ts=6a50b010 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=TUaCbrCJA9lGdIzC_NEA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: ith5psA_xnEUQoF-WeDvvreW2LI937GG X-Proofpoint-ORIG-GUID: ith5psA_xnEUQoF-WeDvvreW2LI937GG X-Proofpoint-Spam-Info: AW1haW4tMjYwNzEwMDA4MCBTYWx0ZWRfXzc3FUth0mrqF HsLzVSVGALbQTXpwxzU60iu1wvet8qPRTSV/Wu1k1KxfocxhhuOs5MJBk/bS5VJa8NzxIPQv6ad qF8I2p68Jg0OSytYN7hyVUnRPrk5v1w= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzEwMDA4MCBTYWx0ZWRfX2jWrebSQuUMe D2qNSgX6z5KnsY1cvgAgUGDFczHfhG+/ta6Vg6GWVS3cD14VGmF5ipzmJy3bTQLFQumaLf3bNyt GGveGFH7PQIdIha/1OQvZq00dmgbIu3i2cX1u631YjwTzg2CFWeU5Z+2ej+ujyMU7fBRoHtD6Jd 8K8hWpe7fg6Swjmr1AOYyaCmGu2Vwyp8T31fFYq6ABpY3tJkRBIODPp7OGDHaSl4vCuRvJ6e7Ox /lpZmUX4fYqT3KEf+p5nRFz5GnxvYLT0xGoqVKatHKo6FnZVviA9/mZmkWp/NNLA1s4OOdtYJqE hRg23RrA2neQt1Mi3X8JyGY5vuThJTkeUs2y6RZI/AZAALxgQMJ3BDHG1PsgZL20GuVOu5X8a4j /bJkuQC+IhpamwWU0/6zSVx4VekCqJ85dI5VUANwfLv1xndgxFB1QmHJl8YPvcgLPh/mtw2wPx5 HS5KQEHZZRuP3EHIC6g== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-10_02,2026-07-09_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 spamscore=0 phishscore=0 priorityscore=1501 bulkscore=0 clxscore=1015 lowpriorityscore=0 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607100080 On Thu, Jul 09, 2026 at 09:54:58PM +0200, Sven Schnelle wrote: > While looking at the syscall code I noticed that entry.S still sets > PIF_GUEST_FAULT in ptregs even though it's only used in __do_pgm_check(). > Remove that and pass it directly to __do_pgm_check(). Heiko suggested > to also add a define for the per trap flag in system_call(). > > Sven Schnelle (2): > s390/traps: Remove PIF_GUEST_FAULT > s390/syscalls: Use define instead of '1' to indicate PER trap > > arch/s390/include/asm/ptrace.h | 4 +--- > arch/s390/kernel/entry.S | 9 +++++---- > arch/s390/kernel/entry.h | 10 ++++++++-- > arch/s390/kernel/syscall.c | 4 ++-- > arch/s390/kernel/traps.c | 4 ++-- > 5 files changed, 18 insertions(+), 13 deletions(-) Applied, thank you!