return 0;
}
+
+int fsync_directory_of_file(int fd) {
+ _cleanup_free_ char *path = NULL, *dn = NULL;
+ _cleanup_close_ int dfd = -1;
+ int r;
+
+ r = fd_verify_regular(fd);
+ if (r < 0)
+ return r;
+
+ r = fd_get_path(fd, &path);
+ if (r < 0)
+ return r;
+
+ if (!path_is_absolute(path))
+ return -EINVAL;
+
+ dn = dirname_malloc(path);
+ if (!dn)
+ return -ENOMEM;
+
+ dfd = open(dn, O_RDONLY|O_CLOEXEC|O_DIRECTORY);
+ if (dfd < 0)
+ return -errno;
+
+ if (fsync(dfd) < 0)
+ return -errno;
+
+ return 0;
+}
int access_fd(int fd, int mode);
int unlinkat_deallocate(int fd, const char *name, int flags);
+
+int fsync_directory_of_file(int fd);
assert_se(st.st_nlink == 0);
}
+static void test_fsync_directory_of_file(void) {
+ _cleanup_close_ int fd = -1;
+
+ fd = open_tmpfile_unlinkable(NULL, O_RDWR);
+ assert_se(fd >= 0);
+
+ assert_se(fsync_directory_of_file(fd) >= 0);
+}
+
int main(int argc, char *argv[]) {
test_unlink_noerrno();
test_get_files_in_directory();
#endif // 0
test_touch_file();
test_unlinkat_deallocate();
+ test_fsync_directory_of_file();
return 0;
}