+
+int btrfs_quota_enable_fd(int fd, bool b) {
+ struct btrfs_ioctl_quota_ctl_args args = {
+ .cmd = b ? BTRFS_QUOTA_CTL_ENABLE : BTRFS_QUOTA_CTL_DISABLE,
+ };
+
+ assert(fd >= 0);
+
+ if (ioctl(fd, BTRFS_IOC_QUOTA_CTL, &args) < 0)
+ return -errno;
+
+ return 0;
+}
+
+int btrfs_quota_enable(const char *path, bool b) {
+ _cleanup_close_ int fd = -1;
+
+ fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW);
+ if (fd < 0)
+ return -errno;
+
+ return btrfs_quota_enable_fd(fd, b);
+}