talos-op-linux/fs/adfs/super.c, branch master

fs/adfs: super: add support for E and E+ floppy image formats

2020-01-21T01:12:42+00:00

Add support for ADFS E and E+ floppy image formats, which, unlike their hard disk variants, do not have a filesystem boot block - they have a single map zone, with the map fragment stored at sector 0. Signed-off-by: Russell King Signed-off-by: Al Viro

fs/adfs: super: extract filesystem block probe

2020-01-21T01:12:42+00:00

Separate the filesystem block probing from the superblock filling so we can support other ADFS filesystem formats, such as the single-zone E and E+ floppy image formats which do not have a boot block. Signed-off-by: Russell King Signed-off-by: Al Viro

fs/adfs: super: fix inode dropping

2020-01-21T01:12:42+00:00

When we have write support enabled, we must not drop inodes before they have been written back, otherwise we lose updates to the filesystem on umount. Keep the inodes around unless we are built in read-only mode, or we are mounted read-only. Signed-off-by: Russell King Signed-off-by: Al Viro

fs/adfs: map: move map-specific sb initialisation to map.c

2020-01-21T01:12:40+00:00

Move map specific superblock initialisation to map.c, rather than having it spread into super.c. Signed-off-by: Russell King Signed-off-by: Al Viro

fs/adfs: map: factor out map cleanup

2020-01-21T01:12:40+00:00

We have several places which deal with releasing the map buffers and freeing the map array. Provide a helper for this. Signed-off-by: Russell King Signed-off-by: Al Viro

fs/adfs: map: rename adfs_map_free() to adfs_map_statfs()

2020-01-21T01:12:40+00:00

adfs_map_free() is not obvious whether it is freeing the map or returning the number of free blocks on the filesystem. Rename it to the more generic statfs() to make it clear that it's a statistic function. Signed-off-by: Russell King Signed-off-by: Al Viro

fs/adfs: map: move map reading and validation to map.c

2020-01-21T01:12:40+00:00

Keep all the map code together in map.c, rather than having some in super.c Signed-off-by: Russell King Signed-off-by: Al Viro

fs/adfs: inode: update timestamps to centisecond precision

2020-01-21T01:12:40+00:00

Despite ADFS timestamps having centi-second granularity, and Linux gaining fine-grained timestamp support in v2.5.48, fs/adfs was never updated. Update fs/adfs to centi-second support, and ensure that the inode ctime always reflects what is written in underlying media. Signed-off-by: Russell King Signed-off-by: Al Viro

Merge branch 'work.adfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2019-07-19T18:33:22+00:00

Pull adfs updates from Al Viro: "More ADFS patches from Russell King" * 'work.adfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs/adfs: add time stamp and file type helpers fs/adfs: super: limit idlen according to directory type fs/adfs: super: fix use-after-free bug fs/adfs: super: safely update options on remount fs/adfs: super: correct superblock flags fs/adfs: clean up indirect disc addresses and fragment IDs fs/adfs: clean up error message printing fs/adfs: use %pV for error messages fs/adfs: use format_version from disc_record fs/adfs: add helper to get filesystem size fs/adfs: add helper to get discrecord from map fs/adfs: correct disc record structure

fs/adfs: add time stamp and file type helpers

2019-06-27T00:14:14+00:00

Add some helpers to check whether the inode has a time stamp and file type, and to parse the file type from the load address. Signed-off-by: Russell King Signed-off-by: Al Viro