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| author | Miklos Szeredi <mszeredi@suse.cz> | 2014-10-24 00:14:36 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2014-10-24 00:14:36 +0200 |
| commit | 787fb6bc9682ec7c05fb5d9561b57100fbc1cc41 (patch) | |
| tree | fde11fbe9f87e95ef6078fcbfed5f55c9ba134f8 /include/uapi/linux/fs.h | |
| parent | cbdf35bcb833bfd00f0925d7a9a33a21f41ea582 (diff) | |
vfs: add whiteout support
Whiteout isn't actually a new file type, but is represented as a char
device (Linus's idea) with 0/0 device number.
This has several advantages compared to introducing a new whiteout file
type:
- no userspace API changes (e.g. trivial to make backups of upper layer
filesystem, without losing whiteouts)
- no fs image format changes (you can boot an old kernel/fsck without
whiteout support and things won't break)
- implementation is trivial
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'include/uapi/linux/fs.h')
0 files changed, 0 insertions, 0 deletions