[libvirt] [PATCH v2 2/6] port allocator: remove range on manual port reserving

Nikolay Shirokovskiy nshirokovskiy at virtuozzo.com
Tue Feb 6 09:09:07 UTC 2018


Range check in virPortAllocatorSetUsed is not useful anymore
when we manage ports for entire unsigned short range values.
---
 src/bhyve/bhyve_command.c      |  4 +---
 src/bhyve/bhyve_process.c      |  4 +---
 src/qemu/qemu_process.c        | 41 +++++++++++------------------------------
 src/util/virportallocator.c    |  9 +--------
 src/util/virportallocator.h    |  4 +---
 tests/bhyvexml2argvtest.c      |  2 +-
 tests/libxlxml2domconfigtest.c |  2 +-
 7 files changed, 17 insertions(+), 49 deletions(-)

diff --git a/src/bhyve/bhyve_command.c b/src/bhyve/bhyve_command.c
index 55032ae..9d21788 100644
--- a/src/bhyve/bhyve_command.c
+++ b/src/bhyve/bhyve_command.c
@@ -411,9 +411,7 @@ bhyveBuildGraphicsArgStr(const virDomainDef *def,
                     return -1;
                 graphics->data.vnc.port = port;
             } else {
-                if (virPortAllocatorSetUsed(driver->remotePorts,
-                                            graphics->data.vnc.port,
-                                            true) < 0)
+                if (virPortAllocatorSetUsed(graphics->data.vnc.port, true) < 0)
                     VIR_WARN("Failed to mark VNC port '%d' as used by '%s'",
                              graphics->data.vnc.port, def->name);
             }
diff --git a/src/bhyve/bhyve_process.c b/src/bhyve/bhyve_process.c
index 5076246..e215f6a 100644
--- a/src/bhyve/bhyve_process.c
+++ b/src/bhyve/bhyve_process.c
@@ -425,9 +425,7 @@ virBhyveProcessReconnect(virDomainObjPtr vm,
              if (vm->def->ngraphics == 1 &&
                  vm->def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC) {
                  int vnc_port = vm->def->graphics[0]->data.vnc.port;
-                 if (virPortAllocatorSetUsed(data->driver->remotePorts,
-                                             vnc_port,
-                                             true) < 0) {
+                 if (virPortAllocatorSetUsed(vnc_port, true) < 0) {
                      VIR_WARN("Failed to mark VNC port '%d' as used by '%s'",
                               vnc_port, vm->def->name);
                  }
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 0368531..2a0690b 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -4203,8 +4203,7 @@ qemuProcessStartHook(virQEMUDriverPtr driver,
 
 
 static int
-qemuProcessGraphicsReservePorts(virQEMUDriverPtr driver,
-                                virDomainGraphicsDefPtr graphics,
+qemuProcessGraphicsReservePorts(virDomainGraphicsDefPtr graphics,
                                 bool reconnect)
 {
     virDomainGraphicsListenDefPtr glisten;
@@ -4222,16 +4221,12 @@ qemuProcessGraphicsReservePorts(virQEMUDriverPtr driver,
     case VIR_DOMAIN_GRAPHICS_TYPE_VNC:
         if (!graphics->data.vnc.autoport ||
             reconnect) {
-            if (virPortAllocatorSetUsed(driver->remotePorts,
-                                        graphics->data.vnc.port,
-                                        true) < 0)
+            if (virPortAllocatorSetUsed(graphics->data.vnc.port, true) < 0)
                 return -1;
             graphics->data.vnc.portReserved = true;
         }
         if (graphics->data.vnc.websocket > 0 &&
-            virPortAllocatorSetUsed(driver->remotePorts,
-                                    graphics->data.vnc.websocket,
-                                    true) < 0)
+            virPortAllocatorSetUsed(graphics->data.vnc.websocket, true) < 0)
             return -1;
         break;
 
@@ -4240,17 +4235,13 @@ qemuProcessGraphicsReservePorts(virQEMUDriverPtr driver,
             return 0;
 
         if (graphics->data.spice.port > 0) {
-            if (virPortAllocatorSetUsed(driver->remotePorts,
-                                        graphics->data.spice.port,
-                                        true) < 0)
+            if (virPortAllocatorSetUsed(graphics->data.spice.port, true) < 0)
                 return -1;
             graphics->data.spice.portReserved = true;
         }
 
         if (graphics->data.spice.tlsPort > 0) {
-            if (virPortAllocatorSetUsed(driver->remotePorts,
-                                        graphics->data.spice.tlsPort,
-                                        true) < 0)
+            if (virPortAllocatorSetUsed(graphics->data.spice.tlsPort, true) < 0)
                 return -1;
             graphics->data.spice.tlsPortReserved = true;
         }
@@ -4440,7 +4431,7 @@ qemuProcessSetupGraphics(virQEMUDriverPtr driver,
         for (i = 0; i < vm->def->ngraphics; i++) {
             graphics = vm->def->graphics[i];
 
-            if (qemuProcessGraphicsReservePorts(driver, graphics, false) < 0)
+            if (qemuProcessGraphicsReservePorts(graphics, false) < 0)
                 goto cleanup;
         }
     }
@@ -6628,9 +6619,7 @@ void qemuProcessStop(virQEMUDriverPtr driver,
                 virPortAllocatorRelease(driver->remotePorts,
                                         graphics->data.vnc.port);
             } else if (graphics->data.vnc.portReserved) {
-                virPortAllocatorSetUsed(driver->remotePorts,
-                                        graphics->data.spice.port,
-                                        false);
+                virPortAllocatorSetUsed(graphics->data.spice.port, false);
                 graphics->data.vnc.portReserved = false;
             }
             if (graphics->data.vnc.websocketGenerated) {
@@ -6639,9 +6628,7 @@ void qemuProcessStop(virQEMUDriverPtr driver,
                 graphics->data.vnc.websocketGenerated = false;
                 graphics->data.vnc.websocket = -1;
             } else if (graphics->data.vnc.websocket) {
-                virPortAllocatorSetUsed(driver->remotePorts,
-                                        graphics->data.vnc.websocket,
-                                        false);
+                virPortAllocatorSetUsed(graphics->data.vnc.websocket, false);
             }
         }
         if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE) {
@@ -6652,16 +6639,12 @@ void qemuProcessStop(virQEMUDriverPtr driver,
                                         graphics->data.spice.tlsPort);
             } else {
                 if (graphics->data.spice.portReserved) {
-                    virPortAllocatorSetUsed(driver->remotePorts,
-                                            graphics->data.spice.port,
-                                            false);
+                    virPortAllocatorSetUsed(graphics->data.spice.port, false);
                     graphics->data.spice.portReserved = false;
                 }
 
                 if (graphics->data.spice.tlsPortReserved) {
-                    virPortAllocatorSetUsed(driver->remotePorts,
-                                            graphics->data.spice.tlsPort,
-                                            false);
+                    virPortAllocatorSetUsed(graphics->data.spice.tlsPort, false);
                     graphics->data.spice.tlsPortReserved = false;
                 }
             }
@@ -7258,9 +7241,7 @@ qemuProcessReconnect(void *opaque)
     }
 
     for (i = 0; i < obj->def->ngraphics; i++) {
-        if (qemuProcessGraphicsReservePorts(driver,
-                                            obj->def->graphics[i],
-                                            true) < 0)
+        if (qemuProcessGraphicsReservePorts(obj->def->graphics[i], true) < 0)
             goto error;
     }
 
diff --git a/src/util/virportallocator.c b/src/util/virportallocator.c
index be29e97..23c7af1 100644
--- a/src/util/virportallocator.c
+++ b/src/util/virportallocator.c
@@ -301,8 +301,7 @@ virPortAllocatorRelease(virPortAllocatorRangePtr range,
 }
 
 int
-virPortAllocatorSetUsed(virPortAllocatorRangePtr range,
-                        unsigned short port,
+virPortAllocatorSetUsed(unsigned short port,
                         bool value)
 {
     int ret = -1;
@@ -313,12 +312,6 @@ virPortAllocatorSetUsed(virPortAllocatorRangePtr range,
 
     virObjectLock(pa);
 
-    if (port < range->start ||
-        port > range->end) {
-        ret = 0;
-        goto cleanup;
-    }
-
     if (value) {
         if (virBitmapIsBitSet(pa->bitmap, port) ||
             virBitmapSetBit(pa->bitmap, port) < 0) {
diff --git a/src/util/virportallocator.h b/src/util/virportallocator.h
index fb38c33..ea816bc 100644
--- a/src/util/virportallocator.h
+++ b/src/util/virportallocator.h
@@ -46,8 +46,6 @@ int virPortAllocatorAcquire(virPortAllocatorRangePtr range,
 int virPortAllocatorRelease(virPortAllocatorRangePtr range,
                             unsigned short port);
 
-int virPortAllocatorSetUsed(virPortAllocatorRangePtr range,
-                            unsigned short port,
-                            bool value);
+int virPortAllocatorSetUsed(unsigned short port, bool value);
 
 #endif /* __VIR_PORT_ALLOCATOR_H__ */
diff --git a/tests/bhyvexml2argvtest.c b/tests/bhyvexml2argvtest.c
index 47ea85b..e8089b8 100644
--- a/tests/bhyvexml2argvtest.c
+++ b/tests/bhyvexml2argvtest.c
@@ -97,7 +97,7 @@ static int testCompareXMLToArgvFiles(const char *xml,
         if (vmdef->graphics[0]->data.vnc.autoport)
             virPortAllocatorRelease(gports, vmdef->graphics[0]->data.vnc.port);
         else
-            virPortAllocatorSetUsed(gports, vmdef->graphics[0]->data.vnc.port, false);
+            virPortAllocatorSetUsed(vmdef->graphics[0]->data.vnc.port, false);
     }
 
     VIR_FREE(actualargv);
diff --git a/tests/libxlxml2domconfigtest.c b/tests/libxlxml2domconfigtest.c
index 0512297..b146eb5 100644
--- a/tests/libxlxml2domconfigtest.c
+++ b/tests/libxlxml2domconfigtest.c
@@ -118,7 +118,7 @@ testCompareXMLToDomConfig(const char *xmlfile,
         if (vmdef->graphics[0]->data.vnc.autoport)
             virPortAllocatorRelease(gports, vmdef->graphics[0]->data.vnc.port);
         else
-            virPortAllocatorSetUsed(gports, vmdef->graphics[0]->data.vnc.port, false);
+            virPortAllocatorSetUsed(vmdef->graphics[0]->data.vnc.port, false);
     }
 
     VIR_FREE(expectjson);
-- 
1.8.3.1




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