kernel/linux.git/fs/ntfs3/dir.c, branch v7.0.10

Merge tag 'ntfs3_for_7.0' of https://github.com/Paragon-Software-Group/linux-ntfs3

2026-02-17T23:37:06+00:00

Pull ntfs3 updates from Konstantin Komarov: "New code: - improve readahead for bitmap initialization and large directory scans - fsync files by syncing parent inodes - drop of preallocated clusters for sparse and compressed files - zero-fill folios beyond i_valid in ntfs_read_folio() - implement llseek SEEK_DATA/SEEK_HOLE by scanning data runs - implement iomap-based file operations - allow explicit boolean acl/prealloc mount options - fall-through between switch labels - delayed-allocation (delalloc) support Fixes: - check return value of indx_find to avoid infinite loop - initialize new folios before use - infinite loop in attr_load_runs_range on inconsistent metadata - infinite loop triggered by zero-sized ATTR_LIST - ntfs_mount_options leak in ntfs_fill_super() - deadlock in ni_read_folio_cmpr - circular locking dependency in run_unpack_ex - prevent infinite loops caused by the next valid being the same - restore NULL folio initialization in ntfs_writepages() - slab-out-of-bounds read in DeleteIndexEntryRoot Updates: - allow readdir() to finish after directory mutations without rewinddir() - handle attr_set_size() errors when truncating files - make ntfs_writeback_ops static - refactor duplicate kmemdup pattern in do_action() - avoid calling run_get_entry() when run == NULL in ntfs_read_run_nb_ra() Replaced: - use wait_on_buffer() directly - rename ni_readpage_cmpr into ni_read_folio_cmpr" * tag 'ntfs3_for_7.0' of https://github.com/Paragon-Software-Group/linux-ntfs3: (26 commits) fs/ntfs3: add delayed-allocation (delalloc) support fs/ntfs3: avoid calling run_get_entry() when run == NULL in ntfs_read_run_nb_ra() fs/ntfs3: add fall-through between switch labels fs/ntfs3: allow explicit boolean acl/prealloc mount options fs/ntfs3: Fix slab-out-of-bounds read in DeleteIndexEntryRoot ntfs3: Restore NULL folio initialization in ntfs_writepages() ntfs3: Refactor duplicate kmemdup pattern in do_action() fs/ntfs3: prevent infinite loops caused by the next valid being the same fs/ntfs3: make ntfs_writeback_ops static ntfs3: fix circular locking dependency in run_unpack_ex fs/ntfs3: implement iomap-based file operations fs/ntfs3: fix deadlock in ni_read_folio_cmpr fs/ntfs3: implement llseek SEEK_DATA/SEEK_HOLE by scanning data runs fs/ntfs3: zero-fill folios beyond i_valid in ntfs_read_folio() fs/ntfs3: handle attr_set_size() errors when truncating files fs/ntfs3: drop preallocated clusters for sparse and compressed files fs/ntfs3: fsync files by syncing parent inodes fs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super() fs/ntfs3: allow readdir() to finish after directory mutations without rewinddir() fs/ntfs3: improve readahead for bitmap initialization and large directory scans ...

Merge tag 'pull-filename' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2026-02-10T00:58:28+00:00

Pull vfs 'struct filename' updates from Al Viro: "[Mostly] sanitize struct filename handling" * tag 'pull-filename' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (68 commits) sysfs(2): fs_index() argument is _not_ a pathname alpha: switch osf_mount() to strndup_user() ksmbd: use CLASS(filename_kernel) mqueue: switch to CLASS(filename) user_statfs(): switch to CLASS(filename) statx: switch to CLASS(filename_maybe_null) quotactl_block(): switch to CLASS(filename) chroot(2): switch to CLASS(filename) move_mount(2): switch to CLASS(filename_maybe_null) namei.c: switch user pathname imports to CLASS(filename{,_flags}) namei.c: convert getname_kernel() callers to CLASS(filename_kernel) do_f{chmod,chown,access}at(): use CLASS(filename_uflags) do_readlinkat(): switch to CLASS(filename_flags) do_sys_truncate(): switch to CLASS(filename) do_utimes_path(): switch to CLASS(filename_uflags) chdir(2): unspaghettify a bit... do_fchownat(): unspaghettify a bit... fspick(2): use CLASS(filename_flags) name_to_handle_at(): use CLASS(filename_uflags) vfs_open_tree(): use CLASS(filename_uflags) ...

ntfs: ->d_compare() must not block

2026-01-13T20:16:44+00:00

... so don't use __getname() there. Switch it (and ntfs_d_hash(), while we are at it) to kmalloc(PATH_MAX, GFP_NOWAIT). Yes, ntfs_d_hash() almost certainly can do with smaller allocations, but let ntfs folks deal with that - keep the allocation size as-is for now. Stop abusing names_cachep in ntfs, period - various uses of that thing in there have nothing to do with pathnames; just use k[mz]alloc() and be done with that. For now let's keep sizes as-in, but AFAICS none of the users actually want PATH_MAX. Signed-off-by: Al Viro

ntfs3: add setlease file operation

2026-01-12T09:55:47+00:00

Add the setlease file_operation to ntfs_file_operations, ntfs_legacy_file_operations, ntfs_dir_operations, and ntfs_legacy_dir_operations, pointing to generic_setlease. A future patch will change the default behavior to reject lease attempts with -EINVAL when there is no setlease file operation defined. Add generic_setlease to retain the ability to set leases on this filesystem. Signed-off-by: Jeff Layton Link: https://patch.msgid.link/20260108-setlease-6-20-v1-14-ea4dec9b67fa@kernel.org Acked-by: Al Viro Acked-by: Christoph Hellwig Signed-off-by: Christian Brauner

fs/ntfs3: fsync files by syncing parent inodes

2025-12-29T13:33:19+00:00

Some xfstests expect fsync() on a file or directory to also persist directory metadata up the parent chain. Using generic_file_fsync() is not sufficient for ntfs, because parent directories are not explicitly written out. Signed-off-by: Konstantin Komarov

fs/ntfs3: allow readdir() to finish after directory mutations without rewinddir()

2025-12-19T18:04:01+00:00

This patch introduces a per-directory version counter that increments on each directory modification (indx_insert_entry() / indx_delete_entry()). ntfs_readdir() uses this version to detect whether the directory has changed since enumeration began. If readdir() reaches end-of-directory but the version has changed, the walk restarts from the beginning of the index tree instead of returning prematurely. This provides rmdir-like behavior for tools that remove entries as they enumerate them. Prior to this change, bonnie++ directory operations could fail due to premature termination of readdir() during concurrent index updates. With this patch applied, bonnie++ completes successfully with no errors. Signed-off-by: Konstantin Komarov

fs/ntfs3: improve readahead for bitmap initialization and large directory scans

2025-12-19T18:04:01+00:00

Previously sequential reads operations relied solely on single-page reads, causing the block layer to perform many synchronous I/O requests, especially for large volumes or large directories. This patch introduces explicit readahead via page_cache_sync_readahead() and file_ra_state to reduce I/O latency and improve sequential throughput. Signed-off-by: Konstantin Komarov

fs/ntfs3: Reformat code and update terminology

2025-10-17T10:08:42+00:00

Reformatted the driver code according to the current .clang-format rules and updated description of used terminology. No functional changes intended. Signed-off-by: Konstantin Komarov

fs/ntfs3: Add sanity check for file name

2025-06-23T17:23:03+00:00

The length of the file name should be smaller than the directory entry size. Reported-by: syzbot+598057afa0f49e62bd23@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=598057afa0f49e62bd23 Signed-off-by: Lizhi Xu Signed-off-by: Konstantin Komarov

fs/ntfs3: fix symlinks cannot be handled correctly

2025-06-23T17:22:32+00:00

The symlinks created in windows will be broken in linux by ntfs3, the patch fixes it. Signed-off-by: Rong Zhang Signed-off-by: Konstantin Komarov