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Ts'o" , 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 =?utf-8?B?S8O2bmln?= , 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@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 Subject: Re: [PATCH v2 060/110] vfs: change kino_t from unsigned long to u64 Message-ID: References: <20260302-iino-u64-v2-0-e5388800dae0@kernel.org> <20260302-iino-u64-v2-60-e5388800dae0@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; 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RCVD_COUNT_THREE(0.00)[3]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; R_RATELIMIT(0.00)[to_ip_from(RLzmnxm7msfpf7ixykpj9feesk)]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCPT_COUNT_GT_50(0.00)[172]; RCVD_TLS_LAST(0.00)[]; DKIM_SIGNED(0.00)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo, suse.com:email, suse.cz:email] X-Mailman-Approved-At: Tue, 03 Mar 2026 11:35:37 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Mon 02-03-26 15:24:44, Jeff Layton wrote: > Change kino_t from unsigned long to u64, and update PRIino from "l" > to "ll" accordingly. This is the actual type widening of i_ino. > > All format strings have already been converted to use PRIino, so this > change compiles warning-free on both 32-bit and 64-bit architectures. > > On 64-bit architectures, unsigned long is already 64 bits, so this is > effectively a type alias change with no runtime impact. On 32-bit > architectures, this widens i_ino from 32 to 64 bits, allowing > filesystems like NFS, CIFS, XFS, Ceph, and FUSE to store their native > 64-bit inode numbers without folding/hashing. > > The VFS already handles 64-bit inode numbers in kstat.ino (u64) and > statx.stx_ino (__u64). The existing overflow checks in cp_new_stat(), > cp_old_stat(), and cp_compat_stat() handle narrowing to 32-bit st_ino > with -EOVERFLOW, so userspace ABI is preserved. > > struct inode will grow by 4 bytes on 32-bit architectures. > > Signed-off-by: Jeff Layton Looks good. Feel free to add: Reviewed-by: Jan Kara Honza > --- > include/linux/fs.h | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/include/linux/fs.h b/include/linux/fs.h > index d0c4789838b5852111583a3e4cced88999496e68..4193817e02e8bf94f29514ca43379af21f37ac61 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -758,8 +758,8 @@ struct inode_state_flags { > enum inode_state_flags_enum __state; > }; > > -typedef unsigned long kino_t; > -#define PRIino "l" > +typedef u64 kino_t; > +#define PRIino "ll" > > /* > * Keep mostly read-only and often accessed (especially for > > -- > 2.53.0 > -- Jan Kara SUSE Labs, CR