[Qemu-devel] [PATCH 4/6] balloon: Refactor kvm sync mmu check

[Luiz Capitulino <lcapitulino@redhat.com>]

qmp_query_balloon() and qmp_balloon() perform the same check, move it
to check_kvm_sync_mmu().

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
---
 balloon.c |   15 +++++++++++----
 1 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/balloon.c b/balloon.c
index b32b487..d340ae3 100644
--- a/balloon.c
+++ b/balloon.c
@@ -80,12 +80,20 @@ static int qemu_balloon_info(BalloonInfo *info)
     return 1;
 }
 
+static bool check_kvm_sync_mmu(Error **errp)
+{
+    if (kvm_enabled() && !kvm_has_sync_mmu()) {
+        error_set(errp, QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
+        return false;
+    }
+    return true;
+}
+
 BalloonInfo *qmp_query_balloon(Error **errp)
 {
     BalloonInfo *info;
 
-    if (kvm_enabled() && !kvm_has_sync_mmu()) {
-        error_set(errp, QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
+    if (!check_kvm_sync_mmu(errp)) {
         return NULL;
     }
 
@@ -102,8 +110,7 @@ BalloonInfo *qmp_query_balloon(Error **errp)
 
 void qmp_balloon(int64_t value, Error **errp)
 {
-    if (kvm_enabled() && !kvm_has_sync_mmu()) {
-        error_set(errp, QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
+    if (!check_kvm_sync_mmu(errp)) {
         return;
     }
 
-- 
1.7.9.111.gf3fb0.dirty