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Tue, 2 Jun 2026 11:34:46 +0000 (GMT) Date: Tue, 2 Jun 2026 13:34:45 +0200 From: Alexander Gordeev To: Heiko Carstens Cc: Sven Schnelle , Vasily Gorbik , Christian Borntraeger , Juergen Christ , linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org Subject: Re: [PATCH v5 4/7] s390/percpu: Use new percpu code section for arch_this_cpu_add_return() Message-ID: References: <20260526055702.1429061-1-hca@linux.ibm.com> <20260526055702.1429061-5-hca@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260526055702.1429061-5-hca@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Azqqy_YCzmyImrfjJT3yJ-0aozLL45xA X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjAyMDEwNiBTYWx0ZWRfXw7Mnp4uRWjsY 99l0W2mi/HOSadK9bsRjaWRsvqfZTurWrXrs6PbdLoqbaicpCkzLumscqn2u+hCiGaxy0Yu3FgT tBALNKSMfgvXRb8b+z6E0ZqMDNmL9iSOo51OPx7JnzyRLvHR9uZOPSaLvsQtfy5aSgGkVO0Rclh dcGRsa6iK0jJ4Y8VXzU8DJ6RJtZukC9eWLq2GSuXL33ClR2BB+tFOH/DsVZruW+QJgQ4VYCR+zz R4qPxAJIWjhLt7EJhXiawFLtKlLfNpSXmSLfoJZqgIVPFV8bcsNDYJ4Wff93uKOBQbBlHVz37lF U8a+7Wfqxwlh2hgbPvhnP/g0V8Cws+rCrvHxC0hMtT2Nbu/gaDaEX/IWEJJS4t1jvtSh8Y+7ygi 1ECxcfC7sgBvy0R9SNxrAM3O77tVeNNuZoyNJX7YZWDTar/WNWluwK3IczJm2T0m8nWpuUBHMeD dMXKhEX9/CZHp56ephA== X-Proofpoint-ORIG-GUID: Azqqy_YCzmyImrfjJT3yJ-0aozLL45xA X-Authority-Analysis: v=2.4 cv=Vf3H+lp9 c=1 sm=1 tr=0 ts=6a1ebfdb cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=kj9zAlcOel0A:10 a=FelO9ux0wxsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VnNF1IyMAAAA:8 a=RgTNVsn8aNFh4s-J9MIA:9 a=CjuIK1q_8ugA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-02_01,2026-05-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 adultscore=0 bulkscore=0 impostorscore=0 phishscore=0 lowpriorityscore=0 malwarescore=0 clxscore=1015 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606020106 On Tue, May 26, 2026 at 07:56:59AM +0200, Heiko Carstens wrote: > Convert arch_this_cpu_add_return() to make use of the new percpu code > section infrastructure. > > With this the text size of the kernel image is reduced by ~4k > (defconfig). Also 66 generated preempt_schedule_notrace() function > calls within the kernel image (modules not counted) are removed. > > Signed-off-by: Heiko Carstens > --- > arch/s390/include/asm/percpu.h | 26 +++++++++++++++++++------- > 1 file changed, 19 insertions(+), 7 deletions(-) Acked-by: Alexander Gordeev