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| /* SPDX-License-Identifier: GPL-2.0 */
| #ifndef __COW_H__
| #define __COW_H__
|
| #include <asm/types.h>
|
| extern int init_cow_file(int fd, char *cow_file, char *backing_file,
| int sectorsize, int alignment, int *bitmap_offset_out,
| unsigned long *bitmap_len_out, int *data_offset_out);
|
| extern int file_reader(__u64 offset, char *buf, int len, void *arg);
| extern int read_cow_header(int (*reader)(__u64, char *, int, void *),
| void *arg, __u32 *version_out,
| char **backing_file_out, time_t *mtime_out,
| unsigned long long *size_out, int *sectorsize_out,
| __u32 *align_out, int *bitmap_offset_out);
|
| extern int write_cow_header(char *cow_file, int fd, char *backing_file,
| int sectorsize, int alignment,
| unsigned long long *size);
|
| extern void cow_sizes(int version, __u64 size, int sectorsize, int align,
| int bitmap_offset, unsigned long *bitmap_len_out,
| int *data_offset_out);
|
| #endif
|
| /*
| * ---------------------------------------------------------------------------
| * Local variables:
| * c-file-style: "linux"
| * End:
| */
|
|
