From nobody Sun Oct 5 16:20:30 2025 Received: from mx0a-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 569DF23D2BC for ; Fri, 1 Aug 2025 23:47:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=67.231.153.30 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754092075; cv=none; b=ONERBtRl1VJpkwUNVCjXEtSiFZ0tc2z8fwX9lWeDBZERdH9Y/cYanxCLIj14VS/3sH+2ZHDdS9Nf1nLawV95eSGIdCXH5EIXmAboETIEX2Wkf5hsv/pFPPQOS5paJhnbHZKXvD8GHvItF3GjFEijOg81Wolw6Q5DVadYgXg49JE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754092075; c=relaxed/simple; bh=nNMJpt4aTazPhFYIswuKSHnf0hEokcerPGAzDvlAalQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=iTE0iawyNg9PIucmMpVAauo5BtW45tXGf2PgSzB7QDyj1aLG/bvKdKh9EBbO+gfekW2j6FXvv4DVCJAwuyZNDMvlNr7Zr/9nTqImISI7NQa7zaU1hzjqQPmbGYD/Jxw+0itumRmLJBc4UqC/ixtNio1SYArnFdqPI4r70Uoe4NU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=meta.com; spf=pass smtp.mailfrom=meta.com; dkim=pass (2048-bit key) header.d=meta.com header.i=@meta.com header.b=VVON6fX2; arc=none smtp.client-ip=67.231.153.30 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=meta.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=meta.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=meta.com header.i=@meta.com header.b="VVON6fX2" Received: from pps.filterd (m0089730.ppops.net [127.0.0.1]) by m0089730.ppops.net (8.18.1.2/8.18.1.2) with ESMTP id 571MmoTw020635 for ; Fri, 1 Aug 2025 16:47:52 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=meta.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=s2048-2025-q2; bh=i1ss4/LYa+hED3hp9nPUkfjNAhsGNQe261dA6YSsJDQ=; b=VVON6fX2rCS9 NvGEvPi3Aoog4HTdo3wmGbQqvwvMxeCcoYVF5XfH/s1cl7qe1CkxY9LTwWxBl7G6 9qFP2Koysz53K5nRGPaAsB91GnLEmzMrax/G6fiMJ+aB+2rrOQSIHUSscqiFoU/K vFLmCTIn5PhyOwto7X9JnhO6fmwM/eh7BiPAz/f1tQ/tKgaHku0TF52InrZbPwVa rWN35li0oSB/woAZ1BXPwNQIVXb9EBOOZhcgkJCl+/hW0A0FosivSumlVXpwR5ae xEvQ7fRmQh8PMVe/o399ezy698mFyyNUgGANFqupraJhl+Htcf7Uvx8EWivCxeQs pcrVtbjSCg== Received: from mail.thefacebook.com ([163.114.134.16]) by m0089730.ppops.net (PPS) with ESMTPS id 488rmynk9w-9 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Fri, 01 Aug 2025 16:47:51 -0700 (PDT) Received: from twshared21625.15.frc2.facebook.com (2620:10d:c085:208::f) by mail.thefacebook.com (2620:10d:c08b:78::c78f) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.2562.17; Fri, 1 Aug 2025 23:47:46 +0000 Received: by devbig197.nha3.facebook.com (Postfix, from userid 544533) id CF7ED3105F8; Fri, 1 Aug 2025 16:47:36 -0700 (PDT) From: Keith Busch To: , , CC: , , , , Keith Busch Subject: [PATCH 7/7] iov_iter: remove iov_iter_is_aligned Date: Fri, 1 Aug 2025 16:47:36 -0700 Message-ID: <20250801234736.1913170-8-kbusch@meta.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20250801234736.1913170-1-kbusch@meta.com> References: <20250801234736.1913170-1-kbusch@meta.com> 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 X-FB-Internal: Safe X-Authority-Analysis: v=2.4 cv=DptW+H/+ c=1 sm=1 tr=0 ts=688d5227 cx=c_pps a=CB4LiSf2rd0gKozIdrpkBw==:117 a=CB4LiSf2rd0gKozIdrpkBw==:17 a=2OwXVqhp2XgA:10 a=VwQbUJbxAAAA:8 a=S-mNSWGAXQVMvOK0xjcA:9 X-Proofpoint-ORIG-GUID: grJ8OBMtXvbaH810k7C4nFgonvhffe4e X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODAxMDE5MyBTYWx0ZWRfXy1vPCQKdjhc1 4mc8ekAw/7SL1NX7g8Rwpw/mrHk8arrGIT51RkeqD+FGSCoSQw8i2LLpSnYSTwTWuXjEsqkyvnX 0KgvuyKbSGwPiNBcWMmI+K3s59pCetLuNod6vTZsE8ArnVGmbCLHqCcExw6q4l7FfJXPkYgFT19 TzVxySe4/JMhGOjrnY1NPOmAhD57dEhPNjRhaBT/9bDJ1nk/t7O1ZcKo455K1IxeYGs/khsNuCV GwsLWoGxV6fpv5oWCS1LsoUmUSKUdcUdV5mwSdo/0c3vk8Yt534KItEDm+UauE+S6ZlZFWwh+5O cYtOyQ01uJM7N+HYU3+VEtZEaB+KZnwDZqd3Ml/K6Cq5cAGBko+18XDoj5Tlo27jB4+YP4e9I8j qyrqVduXfEMD/GoG+NGz1HsNZocuFV/lATeb/k677Zw0JIcJ8M4zF/xyNrhvuasiwVE3J+uQ X-Proofpoint-GUID: grJ8OBMtXvbaH810k7C4nFgonvhffe4e X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-08-01_08,2025-08-01_01,2025-03-28_01 Content-Type: text/plain; charset="utf-8" From: Keith Busch No more callers. Signed-off-by: Keith Busch --- include/linux/uio.h | 2 - lib/iov_iter.c | 95 --------------------------------------------- 2 files changed, 97 deletions(-) diff --git a/include/linux/uio.h b/include/linux/uio.h index 2e86c653186c6..5b127043a1519 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -286,8 +286,6 @@ size_t _copy_mc_to_iter(const void *addr, size_t bytes,= struct iov_iter *i); #endif =20 size_t iov_iter_zero(size_t bytes, struct iov_iter *); -bool iov_iter_is_aligned(const struct iov_iter *i, unsigned addr_mask, - unsigned len_mask); unsigned long iov_iter_alignment(const struct iov_iter *i); unsigned long iov_iter_gap_alignment(const struct iov_iter *i); void iov_iter_init(struct iov_iter *i, unsigned int direction, const struc= t iovec *iov, diff --git a/lib/iov_iter.c b/lib/iov_iter.c index f9193f952f499..2fe66a6b8789e 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -784,101 +784,6 @@ void iov_iter_discard(struct iov_iter *i, unsigned in= t direction, size_t count) } EXPORT_SYMBOL(iov_iter_discard); =20 -static bool iov_iter_aligned_iovec(const struct iov_iter *i, unsigned addr= _mask, - unsigned len_mask) -{ - const struct iovec *iov =3D iter_iov(i); - size_t size =3D i->count; - size_t skip =3D i->iov_offset; - - do { - size_t len =3D iov->iov_len - skip; - - if (len > size) - len =3D size; - if (len & len_mask) - return false; - if ((unsigned long)(iov->iov_base + skip) & addr_mask) - return false; - - iov++; - size -=3D len; - skip =3D 0; - } while (size); - - return true; -} - -static bool iov_iter_aligned_bvec(const struct iov_iter *i, unsigned addr_= mask, - unsigned len_mask) -{ - const struct bio_vec *bvec =3D i->bvec; - unsigned skip =3D i->iov_offset; - size_t size =3D i->count; - - do { - size_t len =3D bvec->bv_len - skip; - - if (len > size) - len =3D size; - if (len & len_mask) - return false; - if ((unsigned long)(bvec->bv_offset + skip) & addr_mask) - return false; - - bvec++; - size -=3D len; - skip =3D 0; - } while (size); - - return true; -} - -/** - * iov_iter_is_aligned() - Check if the addresses and lengths of each segm= ents - * are aligned to the parameters. - * - * @i: &struct iov_iter to restore - * @addr_mask: bit mask to check against the iov element's addresses - * @len_mask: bit mask to check against the iov element's lengths - * - * Return: false if any addresses or lengths intersect with the provided m= asks - */ -bool iov_iter_is_aligned(const struct iov_iter *i, unsigned addr_mask, - unsigned len_mask) -{ - if (likely(iter_is_ubuf(i))) { - if (i->count & len_mask) - return false; - if ((unsigned long)(i->ubuf + i->iov_offset) & addr_mask) - return false; - return true; - } - - if (likely(iter_is_iovec(i) || iov_iter_is_kvec(i))) - return iov_iter_aligned_iovec(i, addr_mask, len_mask); - - if (iov_iter_is_bvec(i)) - return iov_iter_aligned_bvec(i, addr_mask, len_mask); - - /* With both xarray and folioq types, we're dealing with whole folios. */ - if (iov_iter_is_xarray(i)) { - if (i->count & len_mask) - return false; - if ((i->xarray_start + i->iov_offset) & addr_mask) - return false; - } - if (iov_iter_is_folioq(i)) { - if (i->count & len_mask) - return false; - if (i->iov_offset & addr_mask) - return false; - } - - return true; -} -EXPORT_SYMBOL_GPL(iov_iter_is_aligned); - static unsigned long iov_iter_alignment_iovec(const struct iov_iter *i) { const struct iovec *iov =3D iter_iov(i); --=20 2.47.3