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hostmem: add more information in error messages 

When there are multiple memory backends in use, including the object type
and property name in the error message can help users to locate the error.

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Signed-off-by: Zhang Yi <yi.z.zhang@linux.intel.com>
Message-Id: <97d9193875747d8378c05b9e3b3cb39c1b7d2b4e.1546399191.git.yi.z.zhang@linux.intel.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
[ehabkost: reword commit message]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Zhang Yi 2019-01-02 13:26:24 +08:00 committed by Eduardo Habkost
parent 2920bd644e
commit 21d1683690
2 changed files with 9 additions and 5 deletions
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6
backends/hostmem-file.c
View File

@ -82,7 +82,8 @@ static void set_mem_path(Object *o, const char *str, Error **errp)
HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
if (host_memory_backend_mr_inited(backend)) {
error_setg(errp, "cannot change property value");
error_setg(errp, "cannot change property 'mem-path' of %s",
object_get_typename(o));
return;
}
g_free(fb->mem_path);
@ -120,7 +121,8 @@ static void file_memory_backend_set_align(Object *o, Visitor *v,
uint64_t val;
if (host_memory_backend_mr_inited(backend)) {
error_setg(&local_err, "cannot change property value");
error_setg(&local_err, "cannot change property '%s' of %s",
name, object_get_typename(o));
goto out;
}

8
backends/hostmem.c
View File

@ -57,7 +57,8 @@ host_memory_backend_set_size(Object *obj, Visitor *v, const char *name,
uint64_t value;
if (host_memory_backend_mr_inited(backend)) {
error_setg(&local_err, "cannot change property value");
error_setg(&local_err, "cannot change property %s of %s ",
name, object_get_typename(obj));
goto out;
}
@ -66,8 +67,9 @@ host_memory_backend_set_size(Object *obj, Visitor *v, const char *name,
goto out;
}
if (!value) {
error_setg(&local_err, "Property '%s.%s' doesn't take value '%"
PRIu64 "'", object_get_typename(obj), name, value);
error_setg(&local_err,
"property '%s' of %s doesn't take value '%" PRIu64 "'",
name, object_get_typename(obj), value);
goto out;
}
backend->size = value;