libxl: Change claim_mode from bool to int.

During the review it was noticed that it would be better if internally
the claim_mode was held as an 'int' instead of a 'bool'. The reason
is that during the startup of xl, one has call the libxl_defbool_setdefault.
otherwise any usage of claim_mode would result in assert break.

The assert is due to the fact that using defbool without any set
values (either true of false) will cause it hit an assertion.

If we use an 'int' we don't have to worry about it and by default
the value of zero will suffice for checks whether the claim is
enabled or disabled.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>

diff --git a/tools/libxl/xl.c b/tools/libxl/xl.c
index 3c141bfdaaf61ed05ff7bbaa6c3a51ba5ef43b9b..1ce820c5335e09230cec2af905a77e03863f4e66 100644 (file)
--- a/tools/libxl/xl.c
+++ b/tools/libxl/xl.c
@@ -46,7 +46,7 @@ char *default_vifscript = NULL;
 char *default_bridge = NULL;
 char *default_gatewaydev = NULL;
 enum output_format default_output_format = OUTPUT_FORMAT_JSON;
-libxl_defbool claim_mode;
+int claim_mode = 0;
 
 static xentoollog_level minmsglevel = XTL_PROGRESS;
 
@@ -170,8 +170,8 @@ static void parse_global_config(const char *configfile,
     if (!xlu_cfg_get_string (config, "blkdev_start", &buf, 0))
         blkdev_start = strdup(buf);
 
-    libxl_defbool_setdefault(&claim_mode, false);
-    (void)xlu_cfg_get_defbool (config, "claim_mode", &claim_mode, 0);
+    if (!xlu_cfg_get_long (config, "claim_mode", &l, 0))
+        claim_mode = l;
 
     xlu_cfg_destroy(config);
 }

diff --git a/tools/libxl/xl.h b/tools/libxl/xl.h
index 771b4af241c9c51c6b856f3ea6787fdcd58ed774..5ad3e17b2074c194e4237a13600a6e0811af85ec 100644 (file)
--- a/tools/libxl/xl.h
+++ b/tools/libxl/xl.h
@@ -146,7 +146,7 @@ int xl_child_pid(xlchildnum); /* returns 0 if child struct is not in use */
 extern int autoballoon;
 extern int run_hotplug_scripts;
 extern int dryrun_only;
-extern libxl_defbool claim_mode;
+extern int claim_mode;
 extern char *lockfile;
 extern char *default_vifscript;
 extern char *default_bridge;

diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index edf0325fdd59ab73bf0c58779dd06d5775336ca2..609ce49a7df0c360e5d4a509204df4e361ccd47f 100644 (file)
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -734,7 +734,7 @@ static void parse_config_data(const char *config_source,
     if (!xlu_cfg_get_long (config, "maxmem", &l, 0))
         b_info->max_memkb = l * 1024;
 
-    b_info->claim_mode = claim_mode;
+    libxl_defbool_set(&b_info->claim_mode, claim_mode);
 
     if (xlu_cfg_get_string (config, "on_poweroff", &buf, 0))
         buf = "destroy";
@@ -4607,7 +4607,7 @@ static void output_physinfo(void)
     /*
      * Only if enabled (claim_mode=1) or there are outstanding claims.
      */
-    if (libxl_defbool_val(claim_mode) || info.outstanding_pages)
+    if (claim_mode || info.outstanding_pages)
         printf("outstanding_claims     : %"PRIu64"\n", info.outstanding_pages / i);
 
     if (!libxl_get_freecpus(ctx, &cpumap)) {
@@ -5911,7 +5911,7 @@ int main_claims(int argc, char **argv)
         /* No options */
     }
 
-    if (!libxl_defbool_val(claim_mode))
+    if (!claim_mode)
         fprintf(stderr, "claim_mode not enabled (see man xl.conf).\n");
 
     info = libxl_list_domain(ctx, &nb_domain);