0003-vmstate-add-VMSTATE_VALIDATE.patch

   1 From d9e0cb134eefe5104b404b91eaf969a2cd74bd9f Mon Sep 17 00:00:00 2001
   2 From: "Michael S. Tsirkin" <mst@redhat.com>
   3 Date: Thu, 3 Apr 2014 19:50:35 +0300
   4 Subject: [PATCH] vmstate: add VMSTATE_VALIDATE
   5
   6 Validate state using VMS_ARRAY with num = 0 and VMS_MUST_EXIST
   7
   8 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
   9 Signed-off-by: Juan Quintela <quintela@redhat.com>
  10 (cherry picked from commit 4082f0889ba04678fc14816c53e1b9251ea9207e)
  11 ---
  12  include/migration/vmstate.h | 8 ++++++++
  13  1 file changed, 8 insertions(+)
  14
  15 diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
  16 index de970ab..5b71370 100644
  17 --- a/include/migration/vmstate.h
  18 +++ b/include/migration/vmstate.h
  19 @@ -204,6 +204,14 @@ extern const VMStateInfo vmstate_info_bitmap;
  20      .offset       = vmstate_offset_value(_state, _field, _type),     \
  21  }
  22
  23 +/* Validate state using a boolean predicate. */
  24 +#define VMSTATE_VALIDATE(_name, _test) { \
  25 +    .name         = (_name),                                         \
  26 +    .field_exists = (_test),                                         \
  27 +    .flags        = VMS_ARRAY | VMS_MUST_EXIST,                      \
  28 +    .num          = 0, /* 0 elements: no data, only run _test */     \
  29 +}
  30 +
  31  #define VMSTATE_POINTER(_field, _state, _version, _info, _type) {    \
  32      .name       = (stringify(_field)),                               \
  33      .version_id = (_version),                                        \