1 /* SPDX-License-Identifier: GPL-2.0 */
2 #include <sys/statvfs.h>
9 #include "gcc-compat.h"
15 int get_disk_space(const char *path, struct disk_space *result)
17 /* With floats we don't need to care about integer overflows. */
18 float total_blocks, available_blocks, blocksize;
19 float total_inodes, available_inodes;
22 int ret = statvfs(path, &vfs);
24 return -ERRNO_TO_DSS_ERROR(errno);
26 available_blocks = vfs.f_bavail;
27 blocksize = vfs.f_bsize;
28 total_blocks = vfs.f_blocks;
29 total_inodes = vfs.f_files;
30 available_inodes = vfs.f_ffree;
32 result->total_mb = total_blocks * blocksize / 1024.0 / 1024.0;
33 result->free_mb = available_blocks * blocksize / 1024.0 / 1024.0;
34 result->percent_free = 100.0 * available_blocks / total_blocks + 0.5;
35 result->percent_free_inodes = 100.0 * available_inodes / total_inodes + 0.5;
39 void log_disk_space(struct disk_space *ds)
41 DSS_INFO_LOG(("free: %uM/%uM (%u%%), %u%% inodes unused\n",
42 ds->free_mb, ds->total_mb, ds->percent_free,
43 ds->percent_free_inodes));