use non-zero data

diff --git a/tsm_torture.c b/tsm_torture.c
index 6154b783eb590151c3c3e896b6e3c8157249ab93..9d427cc0308d93a7afe048ff15688150c1dbcf97 100644 (file)
--- a/tsm_torture.c
+++ b/tsm_torture.c
@@ -79,6 +79,7 @@ static pid_t parent_pid;
 enum offline_op {OP_LOADFILE, OP_SAVEFILE, OP_MIGRATE, OP_GETOFFLINE, OP_ENDOFLIST};
 
 struct child {
+       unsigned child_num;
        unsigned offline_count;
        unsigned online_count;
        unsigned migrate_fail_count;
@@ -304,9 +305,9 @@ static void child_loadfile(struct child *child, const char *fname, unsigned fnum
        }
 
        for (i=0;i<options.fsize;i++) {
-               if (buf[i] != fnumber % 256) {
+               if (buf[i] != 1+(fnumber % 255)) {
                        printf("Bad data %u - expected %u for '%s'\n",
-                              buf[i], fnumber%256, fname);
+                              buf[i], 1+(fnumber%255), fname);
                        if (options.exit_child_on_error) {
                                exit(1);
                        }
@@ -348,7 +349,7 @@ static void child_savefile(struct child *child, const char *fname, unsigned fnum
        }
 #endif
 
-       memset(buf, fnumber%256, options.fsize);
+       memset(buf, 1+(fnumber%255), options.fsize);
 
        if (options.use_aio) {
                ret = pwrite_aio(fd, buf, options.fsize, 0);
@@ -448,6 +449,7 @@ static void child_migrate(struct child *child, const char *fname)
        free(cmd);
 }
 
+
 /*
   main child loop
  */
@@ -672,7 +674,7 @@ int main(int argc, char * const argv[])
                                exit(1);
                        }
                        ftruncate(fd, options.fsize);
-                       memset(buf, i%256, options.fsize);
+                       memset(buf, 1+(i%255), options.fsize);
                        if (write(fd, buf, options.fsize) != options.fsize) {
                                printf("Failed to write '%s'\n", fname);
                                exit(1);
@@ -693,6 +695,7 @@ int main(int argc, char * const argv[])
                pid_t pid = fork();
                if (pid == 0) {
                        children[i].pid = getpid();
+                       children[i].child_num = i;
                        run_child(&children[i]);
                } else {
                        children[i].pid = pid;