fs/ntfs3: implement iomap-based file operations

Browse source

This patch modifies the ntfs3 driver by replacing the buffer_head-based
operations with the iomap ones.

Implementation details:
- Implements core iomap operations (ntfs_iomap_begin/end) for block mapping:
    Proper handling of resident attributes via IOMAP_INLINE.
    Support for sparse files through IOMAP_HOLE semantics.
    Correct unwritten extent handling for zeroing operations.
- Replaces custom implementations with standardized iomap helpers:
    Converts buffered reads to use iomap_read_folio and iomap_readahead.
    Implements iomap_file_buffered_write for write operations.
    Uses iomap_dio_rw for direct I/O paths.
    Migrates zero range operations to iomap_zero_range.
- Preserves special handling paths for compressed files
- Implements proper EOF/valid data size management during writes

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

...

This commit is contained in:

Konstantin Komarov 2025-12-26 16:45:19 +03:00

parent e37a75bb86

commit 099ef9ab92

No known key found for this signature in database

GPG key ID: A9B0331F832407B6

8 changed files with 600 additions and 789 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

78

fs/ntfs3/attrib.c

View file

368

fs/ntfs3/file.c

View file

183

fs/ntfs3/frecord.c

View file

2

fs/ntfs3/fslog.c

View file

10

fs/ntfs3/fsntfs.c

View file

755

fs/ntfs3/inode.c

View file

16

fs/ntfs3/ntfs_fs.h

View file

11

fs/ntfs3/super.c

View file