fstatfs           211 fs/statfs.c    SYSCALL_DEFINE2(fstatfs, unsigned int, fd, struct statfs __user *, buf)
fstatfs           309 fs/statfs.c    COMPAT_SYSCALL_DEFINE2(fstatfs, unsigned int, fd, struct compat_statfs __user *, buf)
fstatfs           135 tools/testing/selftests/proc/read.c 	if (fstatfs(dirfd(d), &sfs) == -1) {