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 42010EC1428 for ; Tue, 3 Mar 2026 10:52:55 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id A79586B015D; Tue, 3 Mar 2026 05:52:54 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id A508C6B015E; Tue, 3 Mar 2026 05:52:54 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8DE436B0160; Tue, 3 Mar 2026 05:52:54 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 767756B015D for ; Tue, 3 Mar 2026 05:52:54 -0500 (EST) Received: from smtpin25.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id D190B1C49C for ; Tue, 3 Mar 2026 10:52:53 +0000 (UTC) X-FDA: 84504439026.25.2A46B1B Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf21.hostedemail.com (Postfix) with ESMTP id 03E881C0004 for ; Tue, 3 Mar 2026 10:52:51 +0000 (UTC) Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=gkN0AhVq; spf=pass (imf21.hostedemail.com: domain of jlayton@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=jlayton@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1772535172; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=rfQ8VDnAybiRcImS3cweyWygHikCTVD+P+vDsw6SQVM=; b=XPBRmFy/7LUh5RyXhFEAHxinkbOtTjdM/JiqlBVgqDHJmp3QUI4Z4Wmim0Dt0CRQWErrXW OsFRI/97gOD1dNUCnK/+mSpwBq++T/CmEg5z6pQPl4z+PZQb9uTMYeK8x8J9dhfSKteuOX vYcEKUZB+ijxBtlCwwrjX9VduM6eMzE= ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=gkN0AhVq; spf=pass (imf21.hostedemail.com: domain of jlayton@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=jlayton@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1772535172; a=rsa-sha256; cv=none; b=j9NbqpPbW+3WapqJHdAzX6Mhk5lGQdjumQWkE6ZWlCGlT1doY9tQFQIbUXB4QFnWYgkWCm rA4luFw+gjMaB+vMtXK9ulD8xk51TZp0cBDvG8Ox/AbdrG1LJGFHSmZUoT3HKteKtn1lyw ZQftq32Q612r5jtGIdEwmfu06t7MFo8= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id C537643F70; Tue, 3 Mar 2026 10:52:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9C3ACC116C6; Tue, 3 Mar 2026 10:52:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772535170; bh=nGOhg9QKdd1xgegpWoMeks0A2moqyXq0ThAv01c57R4=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=gkN0AhVqRF3ETcr5Aa16oLSpRxTKSO8oK8Zkt4YIeJHbHxskYXh7p/NRdTlEhKfuk 5u6De2MfLrgLdJd9tyTZRo7LDV22vXyQyYTcckKvQUYdAQ8zpOoy0eTtU+JOZnB5y9 7HtQWcoG6jVo9I3FqyJXR0dqwKVEfQmYQm/2rR7T+oNP1TG+6qCTK/p9OfeczHTRAX elYlzyG/qc0W3KHKG0wi3CX/i+zNQYKjtu9ryT1UTo8sA4buRETJvIy99OBopiWFwg PUe7UTLZtbLzWiiCd44isyIAafgGod1JhN+nQmRiuJZa/Ij09Je4AeYD52HWMb9M/U hd1unNVYAIKyg== Message-ID: <2119a8418cab65eef5e0fb100e44224e39568e10.camel@kernel.org> Subject: Re: [PATCH v2 001/110] vfs: introduce kino_t typedef and PRIino format macro From: Jeff Layton To: Theodore Tso Cc: Alexander Viro , Christian Brauner , Jan Kara , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Dan Williams , Matthew Wilcox , Eric Biggers , Muchun Song , Oscar Salvador , David Hildenbrand , David Howells , Paulo Alcantara , Andreas Dilger , Jan Kara , Jaegeuk Kim , Chao Yu , Trond Myklebust , Anna Schumaker , Chuck Lever , NeilBrown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Steve French , Ronnie Sahlberg , Shyam Prasad N , Bharath SM , Alexander Aring , Ryusuke Konishi , Viacheslav Dubeyko , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , David Sterba , Marc Dionne , Ian Kent , Luis de Bethencourt , Salah Triki , "Tigran A. Aivazian" , Ilya Dryomov , Alex Markuze , Jan Harkes , coda@cs.cmu.edu, Nicolas Pitre , Tyler Hicks , Amir Goldstein , Christoph Hellwig , John Paul Adrian Glaubitz , Yangtao Li , Mikulas Patocka , David Woodhouse , Richard Weinberger , Dave Kleikamp , Konstantin Komarov , Mark Fasheh , Joel Becker , Joseph Qi , Mike Marshall , Martin Brandenburg , Miklos Szeredi , Anders Larsen , Zhihao Cheng , Damien Le Moal , Naohiro Aota , Johannes Thumshirn , John Johansen , Paul Moore , James Morris , "Serge E. Hallyn" , Mimi Zohar , Roberto Sassu , Dmitry Kasatkin , Eric Snowberg , Fan Wu , Stephen Smalley , Ondrej Mosnacek , Casey Schaufler , Alex Deucher , Christian =?ISO-8859-1?Q?K=F6nig?= , David Airlie , Simona Vetter , Sumit Semwal , Eric Dumazet , Kuniyuki Iwashima , Paolo Abeni , Willem de Bruijn , "David S. Miller" , Jakub Kicinski , Simon Horman , Oleg Nesterov , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , James Clark , "Darrick J. Wong" , Martin Schiller , Eric Paris , Joerg Reuter , Marcel Holtmann , Johan Hedberg , Luiz Augusto von Dentz , Oliver Hartkopp , Marc Kleine-Budde , David Ahern , Neal Cardwell , Steffen Klassert , Herbert Xu , Remi Denis-Courmont , Marcelo Ricardo Leitner , Xin Long , Magnus Karlsson , Maciej Fijalkowski , Stanislav Fomichev , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, nvdimm@lists.linux.dev, fsverity@lists.linux.dev, linux-mm@kvack.org, netfs@lists.linux.dev, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-nilfs@vger.kernel.org, v9fs@lists.linux.dev, linux-afs@lists.infradead.org, autofs@vger.kernel.org, ceph-devel@vger.kernel.org, codalist@telemann.coda.cs.cmu.edu, ecryptfs@vger.kernel.org, linux-mtd@lists.infradead.org, jfs-discussion@lists.sourceforge.net, ntfs3@lists.linux.dev, ocfs2-devel@lists.linux.dev, devel@lists.orangefs.org, linux-unionfs@vger.kernel.org, apparmor@lists.ubuntu.com, linux-security-module@vger.kernel.org, linux-integrity@vger.kernel.org, selinux@vger.kernel.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, netdev@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-xfs@vger.kernel.org, linux-hams@vger.kernel.org, linux-x25@vger.kernel.org, audit@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-can@vger.kernel.org, linux-sctp@vger.kernel.org, bpf@vger.kernel.org Date: Tue, 03 Mar 2026 05:52:34 -0500 In-Reply-To: <20260303012556.GA6520@macsyma-wired.lan> References: <20260302-iino-u64-v2-0-e5388800dae0@kernel.org> <20260302-iino-u64-v2-1-e5388800dae0@kernel.org> <20260303012556.GA6520@macsyma-wired.lan> Autocrypt: addr=jlayton@kernel.org; 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lnBGwxqzt4vNRdgxh1xGrbH4geNcZn07SXUBCpEG08Re10WJseWZgySlneJZMCxpPnsnyShcvXGKVCgKSg/ZcyaZqcXsrZGLz6UMGS61X2rKd/QkKRnMOiNkhP/v804+5M2ag6peWRS5TS3JicdKVZfCymJGYYrOaDaRx558KOPS6KGCMjZcrHjzNC2nFrVoJWAQqx5IpKBJyktR1dJlVpe2/3vUsz8tJtEUAENm8avQvlCuUbiYRB9mN9S8VGThlfeEJefcB2vf4z5m+ZZ8pfoB2NfFvMBQ2zA6l5pe8LcG3K1DIzU/hzpTTwipwTlIp2Bvd2kPip1IOr3FhvtooKK/CQh6u/+TcLiRK7/iNoIqgztwIlRmaqlUSw88l2kAiKKkMQTPt1tg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, 2026-03-02 at 20:25 -0500, Theodore Tso wrote: > On Mon, Mar 02, 2026 at 03:23:45PM -0500, Jeff Layton wrote: > > The PRIino macro is a length modifier, not a complete format specifier. > > It is used as: "%" PRIino "u" for decimal, "%" PRIino "x" for hex, etc. > > This follows the pattern used by userspace PRIu64/PRIx64 macros. >=20 > For the record, I really hate the inttypes.h format specifiers, but I > agree that we should forward the example of the C99 spec, for better > or for worse. >=20 > That being said, the userspace PRIu64, et. al macros are complete > format specifiers, not just a length modifier. And I think this > results in less ugly format specifiers in our kernel code. >=20 > ---- cut here --- > #!/bin/sh > cat < /tmp/blah.c > #include > #include >=20 > int main(int arg, char **argv) > { > printf("PRIu64 is %s\n", PRIu64); > printf("PRId64 is %s\n", PRId64); > printf("PRIx64 is %s\n", PRIx64); > return 0; > } > EOF >=20 > clang -m32 -o /tmp/blah /tmp/blah.c > /tmp/blah > ---- cut here --- >=20 > % /tmp/blah.sh > PRIu64 is llu > PRId64 is lld > PRIx64 is llx >=20 I originally had them that way, but ended up going with just a single "PRIino" macro since it was simpler. If we were going to keep these macros in perpetuity then I'd be inclined to follow your suggestion, but since they're just temporary scaffolding to make this change, maybe I can ask you to overlook this preference for now? --=20 Jeff Layton