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Wed, 25 Feb 2026 17:58:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772042327; bh=v0gF9Yip5vqOARGERS15X+Fy4jzc8bSZ5q+f4+jXpUg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Zu8JNqj/+hKCuwHWQmCTVK1tpzyAwq+TjOic7LMbDsxpza4QKAWhfMSzlUs+0RVaB dVEVQkTrA/nffg0WU/RbRyizDjK8x/ZZIKCxA+UXJEwWrxt5Wpbq5rQUCtJM3nvtLx q+JxJeiHbsMLzLZ6iqjDQWOSGmPTmUhRf/ziwKMKjrPhiDtm/w8nMJInDFHB/sHrXC Do+b3hGxgat3Nv8fAK0fCFQp3tHzsLTxU+5lrdqimLhUJMr6yJEnnwPFXJhST7BjVB rb299g0C9pNfUgE11c2kcpJ0CTepo+iR7WwwBYjEhjklyRu8LgjuGzc8b730qjqJ6p y/a4iv4wHRlTw== Date: Wed, 25 Feb 2026 12:58:45 -0500 From: Mike Snitzer To: Jeff Layton Cc: Luis de Bethencourt , Salah Triki , Nicolas Pitre , Christoph Hellwig , Jan Kara , Anders Larsen , Alexander Viro , Christian Brauner , David Sterba , Chris Mason , Gao Xiang , Chao Yu , Yue Hu , Jeffle Xu , Sandeep Dhavale , Hongbo Li , Chunhai Guo , Jan Kara , Theodore Ts'o , Andreas Dilger , Jaegeuk Kim , OGAWA Hirofumi , David Woodhouse , Richard Weinberger , Dave Kleikamp , Ryusuke Konishi , Viacheslav Dubeyko , Konstantin Komarov , Mark Fasheh , Joel Becker , Joseph Qi , Mike Marshall , Martin Brandenburg , Miklos Szeredi , Amir Goldstein , Phillip Lougher , Carlos Maiolino , Hugh Dickins , Baolin Wang , Andrew Morton , Namjae Jeon , Sungjong Seo , Yuezhang Mo , Chuck Lever , Alexander Aring , Andreas Gruenbacher , Jonathan Corbet , "Matthew Wilcox (Oracle)" , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , Xiubo Li , Ilya Dryomov , Trond Myklebust , Anna Schumaker , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Tom Talpey , Bharath SM , Hans de Goede , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-mtd@lists.infradead.org, jfs-discussion@lists.sourceforge.net, linux-nilfs@vger.kernel.org, ntfs3@lists.linux.dev, ocfs2-devel@lists.linux.dev, devel@lists.orangefs.org, linux-unionfs@vger.kernel.org, linux-xfs@vger.kernel.org, linux-mm@kvack.org, gfs2@lists.linux.dev, linux-doc@vger.kernel.org, v9fs@lists.linux.dev, ceph-devel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org Subject: Re: [PATCH 24/24] fs: remove simple_nosetlease() Message-ID: References: <20260108-setlease-6-20-v1-0-ea4dec9b67fa@kernel.org> <20260108-setlease-6-20-v1-24-ea4dec9b67fa@kernel.org> X-Mailing-List: linux-erofs@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="BuvfweD5MaN+t/uz" Content-Disposition: inline In-Reply-To: <20260108-setlease-6-20-v1-24-ea4dec9b67fa@kernel.org> --BuvfweD5MaN+t/uz Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Jan 08, 2026 at 12:13:19PM -0500, Jeff Layton wrote: > Setting ->setlease() to a NULL pointer now has the same effect as > setting it to simple_nosetlease(). Remove all of the setlease > file_operations that are set to simple_nosetlease, and the function > itself. > > Signed-off-by: Jeff Layton > --- > fs/9p/vfs_dir.c | 2 -- > fs/9p/vfs_file.c | 2 -- > fs/ceph/dir.c | 2 -- > fs/ceph/file.c | 1 - > fs/fuse/dir.c | 1 - > fs/gfs2/file.c | 2 -- > fs/libfs.c | 18 ------------------ > fs/nfs/dir.c | 1 - > fs/nfs/file.c | 1 - > fs/smb/client/cifsfs.c | 1 - > fs/vboxsf/dir.c | 1 - > fs/vboxsf/file.c | 1 - > include/linux/fs.h | 1 - > 13 files changed, 34 deletions(-) > > diff --git a/fs/libfs.c b/fs/libfs.c > index 697c6d5fc12786c036f0086886297fb5cd52ae00..f1860dff86f2703266beecf31e9d2667af7a9684 100644 > --- a/fs/libfs.c > +++ b/fs/libfs.c > @@ -1699,24 +1699,6 @@ struct inode *alloc_anon_inode(struct super_block *s) > } > EXPORT_SYMBOL(alloc_anon_inode); > > -/** > - * simple_nosetlease - generic helper for prohibiting leases > - * @filp: file pointer > - * @arg: type of lease to obtain > - * @flp: new lease supplied for insertion > - * @priv: private data for lm_setup operation > - * > - * Generic helper for filesystems that do not wish to allow leases to be set. > - * All arguments are ignored and it just returns -EINVAL. > - */ > -int > -simple_nosetlease(struct file *filp, int arg, struct file_lease **flp, > - void **priv) > -{ > - return -EINVAL; > -} > -EXPORT_SYMBOL(simple_nosetlease); > - > /** > * simple_get_link - generic helper to get the target of "fast" symlinks > * @dentry: not used here > diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c > index 71df279febf797880ded19e45528c3df4cea2dde..23a78a742b619dea8b76ddf28f4f59a1c8a015e2 100644 > --- a/fs/nfs/dir.c > +++ b/fs/nfs/dir.c > @@ -66,7 +66,6 @@ const struct file_operations nfs_dir_operations = { > .open = nfs_opendir, > .release = nfs_closedir, > .fsync = nfs_fsync_dir, > - .setlease = simple_nosetlease, > }; > > const struct address_space_operations nfs_dir_aops = { > diff --git a/fs/nfs/file.c b/fs/nfs/file.c > index d020aab40c64ebda30d130b6acee1b9194621457..9d269561961825f88529551b0f0287920960ac62 100644 > --- a/fs/nfs/file.c > +++ b/fs/nfs/file.c > @@ -962,7 +962,6 @@ const struct file_operations nfs_file_operations = { > .splice_read = nfs_file_splice_read, > .splice_write = iter_file_splice_write, > .check_flags = nfs_check_flags, > - .setlease = simple_nosetlease, > .fop_flags = FOP_DONTCACHE, > }; > EXPORT_SYMBOL_GPL(nfs_file_operations); Hey Jeff, I've noticed an NFS reexport regression in v6.19 and now v7.0-rc1 (similar but different due to your series that requires opt-in via .setlease). Bisect first pointed out this commit: 10dcd5110678 nfs: properly disallow delegation requests on directories And now with v7.0-rc1 its the fact that NFS doesn't provide .setlease so lstat() on parent dir (of file that I touch) gets -EINVAL. So its a confluence of NFS's dir delegations and your setlease changes. If I reexport NFSv4.2 filesystem in terms of NFSv4.1, the regression is seen by doing (lstat reproducer that gemini spit out for me is attached): $ touch /mnt/share41/test $ strace ./lstat /mnt/share41 ... lstat("/mnt/share41", 0x7ffec0d79920) = -1 EINVAL (Invalid argument) If I immediately re-run it works: ... lstat("/mnt/share41", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0 I'm not sure what the proper fix is yet, but I feel like you've missed that NFS itself can be (re)exported? Thanks, Mike --BuvfweD5MaN+t/uz Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="lstat.c" #include #include #include #include #include int main(int argc, char *argv[]) { // 1. Check if the filename was provided via argv if (argc < 2) { fprintf(stderr, "Usage: %s \n", argv[0]); return EXIT_FAILURE; } struct stat file_stats; // 2. Pass the filename to the lstat syscall if (lstat(argv[1], &file_stats) < 0) { perror("lstat error"); return EXIT_FAILURE; } // 3. Display some basic metadata printf("Information for: %s\n", argv[1]); printf("---------------------------\n"); printf("File Size: \t\t%lld bytes\n", (long long)file_stats.st_size); printf("Number of Links: \t%ld\n", (long)file_stats.st_nlink); printf("File inode: \t\t%ld\n", (long)file_stats.st_ino); // 4. Determine file type using macros printf("File Type: \t\t"); if (S_ISLNK(file_stats.st_mode)) printf("Symbolic Link\n"); else if (S_ISREG(file_stats.st_mode)) printf("Regular File\n"); else if (S_ISDIR(file_stats.st_mode)) printf("Directory\n"); else printf("Other\n"); return EXIT_SUCCESS; } --BuvfweD5MaN+t/uz--