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29 #define _LARGEFILE64_SOURCE
35 #include <f2fs_format_utils.h>
37 #include <sparse/sparse.h>
39 struct selabel_handle;
41 #include "make_f2fs.h"
43 extern void flush_sparse_buffs();
44 extern void init_sparse_file(unsigned int block_size, int64_t len);
45 extern void finalize_sparse_file(int fd);
47 extern struct f2fs_configuration *f2fs_config;
48 extern int dlopenf2fs();
50 static void reset_f2fs_info() {
51 memset(f2fs_config, 0, sizeof(*f2fs_config));
56 int make_f2fs_sparse_fd(int fd, long long len,
57 const char *mountpoint, struct selabel_handle *sehnd)
59 if (dlopenf2fs() < 0) {
63 f2fs_init_configuration(f2fs_config);
64 len &= ~((__u64)F2FS_BLKSIZE);
65 f2fs_config->total_sectors = len / f2fs_config->sector_size;
66 f2fs_config->start_sector = 0;
67 init_sparse_file(F2FS_BLKSIZE, len);
69 finalize_sparse_file(fd);