1) some minor fix in copy_back_pages 2)add snap_delete 3) some minor fix

[fs/lustre-release.git] / lustre / snapfs / utils / snapctl.c

diff --git a/lustre/snapfs/utils/snapctl.c b/lustre/snapfs/utils/snapctl.c
index 5edb4fa..78415cc 100644 (file)
--- a/lustre/snapfs/utils/snapctl.c
+++ b/lustre/snapfs/utils/snapctl.c
@@ -279,6 +279,49 @@ int snap_snap_list(int argc, char **argv)
        }
        return rc;
 }
+int snap_snap_del(int argc, char **argv)
+{
+       int    rc = 0, i;
+       
+       if (argc != 3 && argc !=2) {
+               fprintf(stderr, "The argument count is not right \n");
+               return CMD_HELP;
+       }
+
+       if (open_device_table.count == 0) {
+               fprintf(stderr, "Please open a snapdevice first\n");
+               return (-EINVAL);
+       }
+       for (i = 0; i < open_device_table.count; i++) {
+               struct ioc_snap_tbl_data *snap_ioc_data;
+
+               IOC_INIT(snap_ioc_data);
+
+               snap_ioc_data->count = 1;
+               snap_ioc_data->dev = open_device_table.device[i].dev;
+
+               if (argc == 3) { 
+                       snap_ioc_data->no = atoi(argv[1]);
+                       memcpy(snap_ioc_data->snaps[0].name, 
+                              argv[2], strlen(argv[2]));
+               } else { 
+                       snap_ioc_data->no = 0;
+                       memcpy(snap_ioc_data->snaps[0].name, 
+                              argv[1], strlen(argv[1]));
+               }
+               snap_ioc_data->snaps[0].time = time(NULL);
+               
+               IOC_PACK(sizeof(struct ioc_snap_tbl_data) + sizeof(struct snap));
+
+               if ((rc = ioctl(open_device_table.device[i].fd, 
+                                       IOC_SNAP_DELETE, buf))) {
+                       fprintf(stderr, "del %s failed \n", argv[1]);
+               } else {
+                       fprintf(stderr, "del %s success\n", argv[1]);
+               }
+       }
+       return rc;
+}
 int snap_snap_add(int argc, char **argv)
 {
        int    rc = 0, i;