From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E9273CDB476 for ; Mon, 22 Jun 2026 22:57:44 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 48D086B0088; Mon, 22 Jun 2026 18:57:43 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 43D256B008A; Mon, 22 Jun 2026 18:57:43 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 354366B008C; Mon, 22 Jun 2026 18:57:43 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id E30116B0088 for ; Mon, 22 Jun 2026 18:57:42 -0400 (EDT) Received: from smtpin01.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 29DB11C18B5 for ; Mon, 22 Jun 2026 22:57:42 +0000 (UTC) X-FDA: 84909062364.01.B4E98D5 Received: from mail-ed1-f74.google.com (mail-ed1-f74.google.com [209.85.208.74]) by imf28.hostedemail.com (Postfix) with ESMTP id 8888FC0003 for ; Mon, 22 Jun 2026 22:57:40 +0000 (UTC) Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=google.com header.s=20251104 header.b=B0rspC0+; spf=pass (imf28.hostedemail.com: domain of 34r05agkKCJ0Q7ORKP7ERDLLDIB.9LJIFKRU-JJHS79H.LOD@flex--tarunsahu.bounces.google.com designates 209.85.208.74 as permitted sender) smtp.mailfrom=34r05agkKCJ0Q7ORKP7ERDLLDIB.9LJIFKRU-JJHS79H.LOD@flex--tarunsahu.bounces.google.com; dmarc=pass (policy=reject) header.from=google.com ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1782169060; b=8DHdFhooY3Hmju/6ZefQobIDrNjAV6HBshwr7bEmxrfnrCfxpqyka5cuvNrQVp4vDkuK4N chjO6XC47KQPCpot9uMXPf/7YvmUJgFSATW2payutbEogVVniekS0FOn7YESvKFz2lRRFy gQdRl0xJq9X//CiNNC99Ah9Cynd0C6Q= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1782169060; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding:in-reply-to: references:dkim-signature; bh=GuqegTQ8Dp22axBp2zLQ2UPTz2GcEz8o9NQNs3L+qeQ=; b=SIWGwuDfz8d18R6r7kiFtkt8mcyulVjAFJpi+KCRh0Kr+LnlzWGr+SnQStiyk9huR3DG23 +P3TZ+ZvZNAlO+hCecgdzFooqqAgJeaxH8bQPxHyJFDx4xCjsKQB7pHg9M0wIA9GkbZ/bn 4+mTDdhZPvKaKMahxWJuAR4IwybIsI4= ARC-Authentication-Results: i=1; imf28.hostedemail.com; dkim=pass header.d=google.com header.s=20251104 header.b=B0rspC0+; spf=pass (imf28.hostedemail.com: domain of 34r05agkKCJ0Q7ORKP7ERDLLDIB.9LJIFKRU-JJHS79H.LOD@flex--tarunsahu.bounces.google.com designates 209.85.208.74 as permitted sender) smtp.mailfrom=34r05agkKCJ0Q7ORKP7ERDLLDIB.9LJIFKRU-JJHS79H.LOD@flex--tarunsahu.bounces.google.com; dmarc=pass (policy=reject) header.from=google.com Received: by mail-ed1-f74.google.com with SMTP id 4fb4d7f45d1cf-6960fb32b74so4029087a12.1 for ; Mon, 22 Jun 2026 15:57:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1782169059; x=1782773859; darn=kvack.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=GuqegTQ8Dp22axBp2zLQ2UPTz2GcEz8o9NQNs3L+qeQ=; b=B0rspC0+ERwbX1LU+QB1ls51TuQt9A8+ImLG6O+FBuemW1p5Zs736xR1Uga51cEyez UqOq4J3MEBpv2YZbjseE7VVnxGvbmOe2E4YCoK0rXhNn7TWmo/nKFffDEACQ1HfopVhy eM+6BVa+mn/YFBl+p3LIDcoTJOSezwTn+4sHc0FdS4ax8/N0+UskqK6Q0qbYgtfloL7U YBeA9uNglesNte5iBJknYxkQnMMZVePED6CNuJ7GF36FY+EWndcDJz/l1HmGyEhHHIDg vHqvQ/EOEMKeXS78tz6o/pKpr0hSFnTMh/L+advmoZ/U+EoSmxQSGAZURbiSLIbF9Ymd X3rQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782169059; x=1782773859; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=GuqegTQ8Dp22axBp2zLQ2UPTz2GcEz8o9NQNs3L+qeQ=; b=jHgkmzqVj7rQxBVDspymr8Modu1r4Z9Kjap2qmeJp6rW+iGWQLyt84wQMGbyT651WW 0HvngVgM4ndYgv8KJR3hzLzq7GfRZ+ryUdPK1F2YCmEqn2sOGxul54XttrAfB8BM6hrC z7OsHB/2tRGL9fk69GRQUgNVL65HTfGSqRu0AR+Jfa2bls8YJBX8YPkTUkG4AO0JWKcR gxRRMAjY9nKumlNBfYZBdluacabVFKiagqYAtWJE90uJl71tco9Bc2EqcYuvOhomGlIy aYz+X3hx7UVk8HZGrBE8qjtYqLifsdV0T/sGU7R3PlPkhGFJZUT85AaIi1eUr2b3+FMF uaEQ== X-Gm-Message-State: AOJu0Yw6XuhDYQkJ6mTWlCqJ9DzoEMbtaNtokYeeG4ibyXujjVvktKsN XhIYo/tuOXkhwMUHYoZhpfsK2lR+udxqoHlZ4nPwVl6r9T1OsDIgq710kr2quZbhUps+6e1kE5V yPebbeALCvoRapA/+SQ== X-Received: from edpg19.prod.google.com ([2002:aa7:d1d3:0:b0:695:4008:2b79]) (user=tarunsahu job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6402:2345:b0:697:5124:15c6 with SMTP id 4fb4d7f45d1cf-697dbad0f06mr66279a12.3.1782169058595; Mon, 22 Jun 2026 15:57:38 -0700 (PDT) Date: Mon, 22 Jun 2026 22:57:34 +0000 Mime-Version: 1.0 X-Mailer: git-send-email 2.55.0.rc0.786.g65d90a0328-goog Message-ID: <20260622225736.2961438-1-tarunsahu@google.com> Subject: [PATCH v4 0/2] luo: convert serialized ptr to KHOSER_PTR From: Tarun Sahu To: Pasha Tatashin , Mike Rapoport , Pratyush Yadav , Alexander Graf , Andrew Morton Cc: linux-mm@kvack.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, Tarun Sahu Content-Type: text/plain; charset="UTF-8" X-Stat-Signature: aengcb9t4n77rqad54fqmayxfbtcs9we X-Rspam-User: X-Rspamd-Queue-Id: 8888FC0003 X-Rspamd-Server: rspam02 X-HE-Tag: 1782169060-572063 X-HE-Meta: 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 mV4B59QI 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Convert raw serialized_data to KHO serializeable pointer (KHOSER_PTR). This series also takes care of resolving the bug with memfd of using phys_to_virt before checking the args->serialized_data value. v4 <- RESEND V3 use only KHOSER_COPY_PTR and have compiler time check for type excluding void * types. Remove TYPE(UN)SAFE variants. RESEND V3: Sent incorrect thread format earlier, this one is with correct one. v3 <- v2 Rebased on top of liveupdate/next v2 <- v1 Use KHOSER_PTR across liveupdate files instead of only memfd_luo Tarun Sahu (2): kho: add KHOSER_COPY_TYPE(UN)SAFE for phys copy luo: Update serialized data to use KHOSER_PTR include/linux/kho/abi/kexec_handover.h | 11 +++++++++++ include/linux/kho/abi/luo.h | 5 +++-- include/linux/liveupdate.h | 4 ++-- kernel/liveupdate/luo_file.c | 24 ++++++++++++------------ mm/memfd_luo.c | 18 +++++++++--------- 5 files changed, 37 insertions(+), 25 deletions(-) base-commit: e98a9c61721c14bcd29f11f4802e52e908701f7a -- 2.55.0.rc0.786.g65d90a0328-goog