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Fri, 10 Oct 2025 08:52:01 +0000 (GMT) From: Sumanth Korikkar To: Andrew Morton , David Hildenbrand , linux-mm Cc: LKML , linux-s390 , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Sumanth Korikkar Subject: [PATCH v3 3/4] s390/sclp: Remove MHP_OFFLINE_INACCESSIBLE Date: Fri, 10 Oct 2025 10:51:46 +0200 Message-ID: <20251010085147.2175918-4-sumanthk@linux.ibm.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20251010085147.2175918-1-sumanthk@linux.ibm.com> References: <20251010085147.2175918-1-sumanthk@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: DMJtnELfKhFqKc1h1X-nm1rbwfVcrN5L X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMDA4MDEyMSBTYWx0ZWRfX8bOlm2FdqGSG 38/cliz8S9d4eMYWkDH0L1/+00+lYk99F+lih1lyN3dFCS6FMsbrnofstL7ELx6XMfk3ZL/xvg7 UbdjkNPuxtLPh6t66LPqKaxdCfBZfxorsTh1Q+8TxXNoD7So1YYpun53RzVRLYKHuwtZLwbyP8Z NLNmhs/3NWlkr78d6U2uMlMrthXrh7iBtzzg8/Tzy0wYYPPftmXw9DDAkcI3LgTU0PC4iL2AHV3 s3QvBVfAeoIgYrLIiPIGeIUqKCxt580theQ5fF0YvPKGUS1tAio05bRsjyYxanqIP8p0o2pOLg7 MR/Dpv7SjyzflGvvhlOqEropYzDkVk9zNfWR5hpn0L5aJidKC93AVFBZeuoGDrqR2odgq8C4+co Zk7zjCJGfOT0bOEbm8Mij3BR7a3knQ== X-Authority-Analysis: v=2.4 cv=cKntc1eN c=1 sm=1 tr=0 ts=68e8c936 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=x6icFKpwvdMA:10 a=VnNF1IyMAAAA:8 a=20KFwNOVAAAA:8 a=f30ByJGsKnh_ESHQSg4A:9 a=cPQSjfK2_nFv0Q5t_7PE:22 X-Proofpoint-GUID: DMJtnELfKhFqKc1h1X-nm1rbwfVcrN5L X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-10-10_01,2025-10-06_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 adultscore=0 lowpriorityscore=0 malwarescore=0 suspectscore=0 bulkscore=0 phishscore=0 spamscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510020000 definitions=main-2510080121 X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 4A286140011 X-Stat-Signature: sjcpa1pfsc8c36iw5t7167cpwzwbmj9e X-Rspam-User: X-HE-Tag: 1760086327-449064 X-HE-Meta: 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 IFI366LS ZJTHS8SMyTaoJ8BSGlBM3VUZXDY18PkHdWL1/95hPaZNaMsZ5pmJzFXUO+GmuQNDgfynCsz6cMoWRPn7I1BeLMsKcrVSsVrMvx1NkA49VWTkZVyJmlBhinqO3LbAb3tN1oQ6b9DcT4ZxO/IpAJLbd+etQ7V4D9Q+9fpXDRKepOO59YdMDiMayAGp3u1Sma4EpyuxgNy4HsSgzEYZRv4HyPz6idw4kazDkzrATzpFFXpeN+tK40ifGg7TbmLKFueKTFibAibDj0gOR/e7bYH7dg10UNS8n/Ol1quACXNED5vaZDxebTkJdCuhEVQXvhSW62aBoWA4jzrkVgtM7a2lRHc+e+spinuKmgeBhBwCIqmSGsBL70Gpccj/ku72cTjBsGBanPRkOzJC8qKI= 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: List-Subscribe: List-Unsubscribe: mhp_flag MHP_OFFLINE_INACCESSIBLE was used to mark memory as not accessible until memory hotplug online phase begins. Earlier, standby memory blocks were added upfront during boottime and MHP_OFFLINE_INACCESSIBLE flag avoided page_init_poison() on memmap during mhp addtion phase. However with dynamic runtime configuration of memory, standby memory can be brought to accessible state before performing add_memory(). Hence, remove MHP_OFFLINE_INACCESSIBLE. Acked-by: Heiko Carstens Reviewed-by: David Hildenbrand Signed-off-by: Sumanth Korikkar --- drivers/s390/char/sclp_mem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/char/sclp_mem.c b/drivers/s390/char/sclp_mem.c index e44b3b01dae6..80b993ebf0e6 100644 --- a/drivers/s390/char/sclp_mem.c +++ b/drivers/s390/char/sclp_mem.c @@ -224,7 +224,7 @@ static ssize_t config_sclp_mem_store(struct kobject *kobj, struct kobj_attribute __arch_set_page_nodat((void *)__va(addr), block_size >> PAGE_SHIFT); rc = __add_memory(0, addr, block_size, sclp_mem->memmap_on_memory ? - MHP_MEMMAP_ON_MEMORY | MHP_OFFLINE_INACCESSIBLE : MHP_NONE); + MHP_MEMMAP_ON_MEMORY : MHP_NONE); if (rc) { sclp_mem_change_state(addr, block_size, 0); goto out_unlock; -- 2.48.1