LU-6202 obd: replace OBD_IOC_NO_TRANSNO with sysfs file

[fs/lustre-release.git] / lustre / utils / obd.c

diff --git a/lustre/utils/obd.c b/lustre/utils/obd.c
index db5bc12..c810f55 100644 (file)
--- a/lustre/utils/obd.c
+++ b/lustre/utils/obd.c
@@ -838,19 +838,56 @@ int jt_opt_net(int argc, char **argv)
         return rc;
 }
 
+#ifdef HAVE_SERVER_SUPPORT
+/* Place this here so we can build tools that work with
+ * older Lustre versions
+ */
+#ifndef OBD_IOC_NO_TRANSNO
+#define OBD_IOC_NO_TRANSNO     _IOW('f', 140, OBD_IOC_DATA_TYPE)
+#endif
+
 int jt_obd_no_transno(int argc, char **argv)
 {
        struct obd_ioctl_data data;
        char rawbuf[MAX_IOC_BUFLEN], *buf = rawbuf;
+       glob_t path;
+       int count;
+       int fd;
        int rc;
 
-       memset(&data, 0, sizeof(data));
-       data.ioc_dev = cur_device;
-
        if (argc != 1)
                return CMD_HELP;
 
        memset(buf, 0, sizeof(rawbuf));
+
+       rc = cfs_get_param_paths(&path, "no_transno");
+       if (rc != 0)
+               goto old_ioctl;
+
+       fd = open(path.gl_pathv[0], O_WRONLY);
+       if (fd < 0) {
+               cfs_free_param_data(&path);
+               goto old_ioctl;
+       }
+
+       snprintf(rawbuf, sizeof(rawbuf), "%d", cur_device);
+
+       count = write(fd, rawbuf, strlen(rawbuf));
+       if (count < 0)
+               rc = errno;
+
+       cfs_free_param_data(&path);
+       close(fd);
+       if (rc)
+               goto old_ioctl;
+
+       return 0;
+
+old_ioctl:
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
+       memset(&data, 0, sizeof(data));
+       data.ioc_dev = cur_device;
+
        rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
        if (rc) {
                fprintf(stderr, "error: %s: invalid ioctl\n",
@@ -861,9 +898,10 @@ int jt_obd_no_transno(int argc, char **argv)
        if (rc < 0)
                fprintf(stderr, "error: %s: %s\n", jt_cmdname(argv[0]),
                        strerror(rc = errno));
-
+#endif
        return rc;
 }
+#endif /* HAVE_SERVER_SUPPORT */
 
 int jt_obd_set_readonly(int argc, char **argv)
 {