From nobody Fri Oct 2 01:56:24 2026 Received: from mail-wr1-f41.google.com (mail-wr1-f41.google.com [209.85.221.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 05315438024 for ; Thu, 6 Aug 2026 10:07:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.41 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786010867; cv=none; b=NGKaAquLLR1nq8qt69TYhYb0zL3hGggPCISscxHaoiyI35E+TkHC2BzCBD7oBm5K/jPkMQVfJL0bCgjz2v8gHMt1BLqEf6XxhZWTou4HPgo/ky38BgdXHmrvuj/ZziOYCL3XOysvv/YlIeeKfvqEnnw4iHvyodEKcn/6oBmhRog= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786010867; c=relaxed/simple; bh=oMOwLXkigQuDWZNko7Ztg9TxQvpb0LHYzq3CQx+b6bs=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=kPlpSF2N8uH73Jlkpn9k80Fq9cTzjYBnz6z8R7XfNQrfCb0HXF9cxYbIDNclp2gnwPHt7cTvUijp1vFShFEvlnGdRQRULNO30DYBJXkI+zS/h93qlTEeio9NIj9NLyRJg1ey5AfBOvqDoPG4LvQqCD3rwzLrLkLG/tBHQYjiyMY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=EnItMa3g; arc=none smtp.client-ip=209.85.221.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="EnItMa3g" Received: by mail-wr1-f41.google.com with SMTP id ffacd0b85a97d-47c2ae992beso159920f8f.2 for ; Thu, 06 Aug 2026 03:07:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1786010862; x=1786615662; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=9jkdh6VKlKFhlDrgR60RC1avyqfvhVLkmPkcfqFabPg=; b=EnItMa3g8RC6yw0wTQg4XORTn3H8BBPHSJGSmLBGcvAcYMshV5lmVbcsNXoVInGY// gqRRUDJgT/pTII4FOmMbKJ985MA2LdY2U9q1XFrYRnLd3cKbeisyKNA3NcmdPESkD3LM WVyUS9l2OKnDi44+gsAmHNu732yBu5Y38fku2qAUO8PskybMY3Wlbt/pW/o9Bf05dm2M d5RDi8Lg1r2knyzrk84Dpalp6EBPh/DZY3Bc92wM6ojytKQOofO6mCGwrA8YFpvA93gK NC07KYywxNDjeJzZ9bWcuftzWGfYaezfTKN2sQp4QQ2cnL8SVJ12dkrgE/1yYnuEPfob tCAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786010862; x=1786615662; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=9jkdh6VKlKFhlDrgR60RC1avyqfvhVLkmPkcfqFabPg=; b=PQa7rjDDl1Xub5dvrX6m3gmakHPD0RDIpAt9RowkpYhzt7XwSTYitQqQSr97OWYy1D cyrR5Ui9eu3Hht7mbHmh43aZCqGrJBO7PFKyd5KoeAUaQ6tZtQG0gTy5oFQntBgKXTjT c43jy7bEVoTRodAgUza2SWN9PhwXSJrBAbMbAnj1NbaV+KOZ4XUohyDg9YI+OniI6M5v 2/AvIaDRAV6cbqGlk7F74MjcHW3C2of0AFsWHvz6gKJTzPwXLiySFeUxnFDy+RDhO9+t xiJLBSY8wQGGEnqutMpS4hzxJsrwiJvkFHgLNTwBDh+mGfStzI2b5ss9DUdLYk7XSpGZ hraw== X-Forwarded-Encrypted: i=1; AHgh+RoKbY2neogn7JtGddGcAhhAc74uMOPz/cSgE76vC4p1ubITuPiarQNtQFd1c3OMZaIRWhT9AwKJpTCyFAI=@vger.kernel.org X-Gm-Message-State: AOJu0YxfLTMb8EYXV7NSKV+SOAWYbd7qfnfOqLqVYOqhpzZASS4wuFjK js7H+V7XLOknCyNFgrVkOV7VzqOLpzN+TjQ3DdWXm8VfeTOEkPXJnwKNzkHZaSYFV2E= X-Gm-Gg: AR+sD11w3dTUhwWDAikERHLE16IZsY9TgXTHaJ661XZsGMubACi9CUKfsrZLxDz/lOT HsprI5LXT/tIk+ljoVGEuRCTj3H7NU+oYONIJ2ETycwr7+F3/kQIx2C8HRP6IUZZQePxtJe91Fv 8Iy9xI59Y6VmJJnehOCyw2R+X1CBh1elMm3p/dUX7bg9s4zQtPhA5InjfqjUMyihyigQ0I/9qxn 9+9qAvjT0VE7Azw4w2eY2AKm4Corr6gyRqBCdutfaAai7d+yLTvCO/tqbZS4EksD4ho5xxzotLk 2JlxJtFqzn/kAqshtbIV/YiZq+V7MExQNNdRTarkXAQ/HrQQ5Qiil5vrw6IV/K5Vb82cTeoczf4 PtHql3knQqTPDA6CfPHGw7kofkPzEdWoJfKwcDhuYRL4cWH7bqQ68R98S3aFWjypGvIoZfayeiT Sp7W5DF+XWojRLfDQ/20S9MPVG/PCSTE93aMzef+CZ9esiWPAA69HXOJCPo8C8RoTQ87yWNXQ/G OP1NngumhmtOXqbv/7uC8eI5uJJ0yPnF2r1mZyaxwp8QAy4N+uHCI1v4vQnwohIqNYcZgL5XcW3 OCr1UFNN/Uibjw== X-Received: by 2002:a05:6000:200f:b0:46f:7d90:8124 with SMTP id ffacd0b85a97d-47fec528a60mr10218590f8f.2.1786010861910; Thu, 06 Aug 2026 03:07:41 -0700 (PDT) Received: from fedora ([149.3.87.76]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-47ff79a718bsm5427264f8f.5.2026.08.06.03.07.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Aug 2026 03:07:41 -0700 (PDT) From: Giorgi Tchankvetadze To: Pasha Tatashin , Mike Rapoport , Pratyush Yadav , Andrew Morton , kexec@lists.infradead.org (open list:LIVE UPDATE), linux-kernel@vger.kernel.org (open list:LIVE UPDATE), linux-mm@kvack.org (open list:MEMORY MANAGEMENT) Cc: Giorgi Tchankvetadze Subject: [PATCH] mm/memfd_luo: use real folio index in retrieve error logs Date: Thu, 6 Aug 2026 14:05:39 +0400 Message-ID: <20260806100543.138902-3-giorgitchankvetadze1997@gmail.com> X-Mailer: git-send-email 2.52.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Giorgi Tchankvetadze memfd_luo_retrieve_folios() logs "folio index %ld" on its error paths but passes the loop counter 'i' instead of the folio's actual index held in the local 'index' variable (pfolio->index). Pass 'index' to the three pr_err() calls so the logged index matches the folio that actually failed. Since the saved index is a u64, use %llu wi= th an unsigned long long cast when printing it. Fixes: b3749f174d68 ("mm: memfd_luo: allow preserving memfd") Signed-off-by: Giorgi Tchankvetadze --- mm/memfd_luo.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/mm/memfd_luo.c b/mm/memfd_luo.c index 59de210bee5f..652dd21e6ef0 100644 --- a/mm/memfd_luo.c +++ b/mm/memfd_luo.c @@ -451,16 +451,16 @@ static int memfd_luo_retrieve_folios(struct file *fil= e, =20 err =3D mem_cgroup_charge(folio, NULL, mapping_gfp_mask(mapping)); if (err) { - pr_err("shmem: failed to charge folio index %ld: %d\n", - i, err); + pr_err("shmem: failed to charge folio index %llu: %d\n", + (unsigned long long)index, err); goto unlock_folio; } =20 err =3D shmem_add_to_page_cache(folio, mapping, index, NULL, mapping_gfp_mask(mapping)); if (err) { - pr_err("shmem: failed to add to page cache folio index %ld: %d\n", - i, err); + pr_err("shmem: failed to add to page cache folio index %llu: %d\n", + (unsigned long long)index, err); goto unlock_folio; } =20 @@ -472,8 +472,8 @@ static int memfd_luo_retrieve_folios(struct file *file, npages =3D folio_nr_pages(folio); err =3D shmem_inode_acct_blocks(inode, npages); if (err) { - pr_err("shmem: failed to account folio index %ld(%ld pages): %d\n", - i, npages, err); + pr_err("shmem: failed to account folio index %llu(%ld pages): %d\n", + (unsigned long long)index, npages, err); goto remove_from_cache; } =20 --=20 2.52.0