12:47 p.m.
I am messing a lot with qemu_driver.c and other QEMU files due
to a multifunction PCI feature I'm working on, ending up
sometimes moving code here and there, sometimes copy and
pasting parts of it, and spreading all these 'vices', namely
using char* and VIR_FREE() and virQEMUDriverConfigPtr with
virObjectUnref(), knowing that there is a better way of doing
it.
Instead of changing just the code I was working on, I took
a leap and ended up changing the whole qemu_driver.c file.
So here it is.
The changes were split to make it reviewing a bit saner. The
commiter can squash these in fewer patches if desirable.
This was done on top of master commit 6ffb8fff9e.
changes in v2:
- addressed review concerns made by Erik
- added more cleanups, as suggested by Erik
v1: https://www.redhat.com/archives/libvir-list/2019-September/msg00719.html
Daniel Henrique Barboza (9):
qemu_driver: use VIR_AUTOUNREF() with virQEMUDriverConfigPtr 1/3
qemu_driver: use VIR_AUTOUNREF() with virQEMUDriverConfigPtr 2/3
qemu_driver: use VIR_AUTOUNREF() with virQEMUDriverConfigPtr 3/3
qemu_driver: use VIR_AUTOUNREF() with virCapsPtr
qemu_driver: use VIR_AUTOUNREF() with more pointer types
qemu_driver: use VIR_AUTOFREE() with strings 1/3
qemu_driver: use VIR_AUTOFREE() with strings 2/3
qemu_driver: use VIR_AUTOFREE() with strings 3/3
qemu_driver: VIR_AUTOFREE on other scalar pointers
src/qemu/qemu_driver.c | 709 ++++++++++++++---------------------------
1 file changed, 235 insertions(+), 474 deletions(-)
--
2.21.0
12:47 p.m.
New subject: [libvirt] [PATCH v2 1/9] qemu_driver: use VIR_AUTOUNREF() with virQEMUDriverConfigPtr 1/3
virQEMUDriverConfigPtr can be auto-unref for the great majority
of the uses made in qemu_driver, sparing us a virObjectUnref()
call and sometimes a whole 'cleanup' label.
This patch changes virQEMUDriverConfigPtr declarations to
use VIR_AUTOUNREF(). 'cleanup' labels were deleted when
applicable. Since there are a lot of references to change,
let's do it in 3 steps.
Signed-off-by: Daniel Henrique Barboza <danielhb413(a)gmail.com>
---
src/qemu/qemu_driver.c | 94 +++++++++++++-----------------------------
1 file changed, 29 insertions(+), 65 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 8751145ea0..1e709c1e97 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -202,7 +202,7 @@ qemuAutostartDomain(virDomainObjPtr vm,
{
virQEMUDriverPtr driver = opaque;
int flags = 0;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
int ret = -1;
if (cfg->autoStartBypassCache)
@@ -234,7 +234,6 @@ qemuAutostartDomain(virDomainObjPtr vm,
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -308,7 +307,7 @@ qemuSecurityInit(virQEMUDriverPtr driver)
char **names;
virSecurityManagerPtr mgr = NULL;
virSecurityManagerPtr stack = NULL;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
unsigned int flags = 0;
if (cfg->securityDefaultConfined)
@@ -368,7 +367,6 @@ qemuSecurityInit(virQEMUDriverPtr driver)
}
driver->securityManager = stack;
- virObjectUnref(cfg);
return 0;
error:
@@ -376,7 +374,6 @@ qemuSecurityInit(virQEMUDriverPtr driver)
_("Failed to initialize security drivers"));
virObjectUnref(stack);
virObjectUnref(mgr);
- virObjectUnref(cfg);
return -1;
}
@@ -1069,7 +1066,7 @@ static void qemuNotifyLoadDomain(virDomainObjPtr vm, int newVM, void
*opaque)
static int
qemuStateReload(void)
{
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCapsPtr caps = NULL;
if (!qemu_driver)
@@ -1085,7 +1082,6 @@ qemuStateReload(void)
caps, qemu_driver->xmlopt,
qemuNotifyLoadDomain, qemu_driver);
cleanup:
- virObjectUnref(cfg);
virObjectUnref(caps);
return 0;
}
@@ -1107,7 +1103,7 @@ qemuStateStop(void)
int state;
virDomainPtr *domains = NULL;
unsigned int *flags = NULL;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(qemu_driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(qemu_driver);
if (!(conn = virConnectOpen(cfg->uri)))
goto cleanup;
@@ -1146,7 +1142,6 @@ qemuStateStop(void)
}
VIR_FREE(flags);
virObjectUnref(conn);
- virObjectUnref(cfg);
return ret;
}
@@ -1204,20 +1199,16 @@ qemuStateCleanup(void)
static int
qemuConnectURIProbe(char **uri)
{
- virQEMUDriverConfigPtr cfg = NULL;
- int ret = -1;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
if (qemu_driver == NULL)
return 0;
cfg = virQEMUDriverGetConfig(qemu_driver);
if (VIR_STRDUP(*uri, cfg->uri) < 0)
- goto cleanup;
+ return -1;
- ret = 0;
- cleanup:
- virObjectUnref(cfg);
- return ret;
+ return 0;
}
static virDrvOpenStatus qemuConnectOpen(virConnectPtr conn,
@@ -1882,7 +1873,7 @@ static int qemuDomainSuspend(virDomainPtr dom)
qemuDomainObjPrivatePtr priv;
virDomainPausedReason reason;
int state;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
@@ -1925,7 +1916,6 @@ static int qemuDomainSuspend(virDomainPtr dom)
cleanup:
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -1937,7 +1927,7 @@ static int qemuDomainResume(virDomainPtr dom)
int ret = -1;
int state;
int reason;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
@@ -1983,7 +1973,6 @@ static int qemuDomainResume(virDomainPtr dom)
cleanup:
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -2364,7 +2353,7 @@ static int qemuDomainSetMemoryFlags(virDomainPtr dom, unsigned long
newmem,
virDomainDefPtr def;
virDomainDefPtr persistentDef;
int ret = -1, r;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
@@ -2469,7 +2458,6 @@ static int qemuDomainSetMemoryFlags(virDomainPtr dom, unsigned long
newmem,
cleanup:
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -2492,7 +2480,7 @@ static int qemuDomainSetMemoryStatsPeriod(virDomainPtr dom, int
period,
virDomainDefPtr def;
virDomainDefPtr persistentDef;
int ret = -1, r;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
@@ -2555,7 +2543,6 @@ static int qemuDomainSetMemoryStatsPeriod(virDomainPtr dom, int
period,
cleanup:
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -3067,27 +3054,21 @@ qemuOpenFile(virQEMUDriverPtr driver,
int oflags,
bool *needUnlink)
{
- int ret = -1;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
uid_t user = cfg->user;
gid_t group = cfg->group;
bool dynamicOwnership = cfg->dynamicOwnership;
virSecurityLabelDefPtr seclabel;
- virObjectUnref(cfg);
-
/* TODO: Take imagelabel into account? */
if (vm &&
(seclabel = virDomainDefGetSecurityLabelDef(vm->def, "dac")) != NULL
&&
seclabel->label != NULL &&
(virParseOwnershipIds(seclabel->label, &user, &group) < 0))
- goto cleanup;
-
- ret = qemuOpenFileAs(user, group, dynamicOwnership,
- path, oflags, needUnlink);
+ return -1;
- cleanup:
- return ret;
+ return qemuOpenFileAs(user, group, dynamicOwnership,
+ path, oflags, needUnlink);
}
static int
@@ -3252,7 +3233,7 @@ qemuDomainSaveMemory(virQEMUDriverPtr driver,
unsigned int flags,
qemuDomainAsyncJob asyncJob)
{
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
bool needUnlink = false;
int ret = -1;
int fd = -1;
@@ -3315,7 +3296,6 @@ qemuDomainSaveMemory(virQEMUDriverPtr driver,
if (qemuFileWrapperFDClose(vm, wrapperFd) < 0)
ret = -1;
virFileWrapperFdFree(wrapperFd);
- virObjectUnref(cfg);
if (ret < 0 && needUnlink)
unlink(path);
@@ -3543,7 +3523,7 @@ qemuDomainSaveFlags(virDomainPtr dom, const char *path, const char
*dxml,
char *compressedpath = NULL;
int ret = -1;
virDomainObjPtr vm = NULL;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCheckFlags(VIR_DOMAIN_SAVE_BYPASS_CACHE |
VIR_DOMAIN_SAVE_RUNNING |
@@ -3570,7 +3550,6 @@ qemuDomainSaveFlags(virDomainPtr dom, const char *path, const char
*dxml,
cleanup:
virDomainObjEndAPI(&vm);
VIR_FREE(compressedpath);
- virObjectUnref(cfg);
return ret;
}
@@ -3584,14 +3563,11 @@ static char *
qemuDomainManagedSavePath(virQEMUDriverPtr driver, virDomainObjPtr vm)
{
char *ret;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
- if (virAsprintf(&ret, "%s/%s.save", cfg->saveDir,
vm->def->name) < 0) {
- virObjectUnref(cfg);
+ if (virAsprintf(&ret, "%s/%s.save", cfg->saveDir,
vm->def->name) < 0)
return NULL;
- }
- virObjectUnref(cfg);
return ret;
}
@@ -3599,7 +3575,7 @@ static int
qemuDomainManagedSave(virDomainPtr dom, unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
int compressed;
char *compressedpath = NULL;
virDomainObjPtr vm;
@@ -3645,7 +3621,6 @@ qemuDomainManagedSave(virDomainPtr dom, unsigned int flags)
virDomainObjEndAPI(&vm);
VIR_FREE(name);
VIR_FREE(compressedpath);
- virObjectUnref(cfg);
return ret;
}
@@ -3843,7 +3818,7 @@ doCoreDump(virQEMUDriverPtr driver,
int directFlag = 0;
unsigned int flags = VIR_FILE_WRAPPER_NON_BLOCKING;
const char *memory_dump_format = NULL;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
char *compressedpath = NULL;
/* We reuse "save" flag for "dump" here. Then, we can support the
same
@@ -3925,7 +3900,6 @@ doCoreDump(virQEMUDriverPtr driver,
if (ret != 0)
unlink(path);
VIR_FREE(compressedpath);
- virObjectUnref(cfg);
return ret;
}
@@ -4057,7 +4031,7 @@ qemuDomainScreenshot(virDomainPtr dom,
const char *videoAlias = NULL;
char *ret = NULL;
bool unlink_tmp = false;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCheckFlags(0, NULL);
@@ -4149,7 +4123,6 @@ qemuDomainScreenshot(virDomainPtr dom,
cleanup:
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -4162,7 +4135,7 @@ getAutoDumpPath(virQEMUDriverPtr driver,
char timestr[100];
struct tm time_info;
time_t curtime = time(NULL);
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
if (!domname)
return NULL;
@@ -4177,7 +4150,6 @@ getAutoDumpPath(virQEMUDriverPtr driver,
domname,
timestr));
- virObjectUnref(cfg);
VIR_FREE(domname);
return dumpfile;
}
@@ -4188,7 +4160,7 @@ processWatchdogEvent(virQEMUDriverPtr driver,
int action)
{
int ret;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
char *dumpfile = getAutoDumpPath(driver, vm);
unsigned int flags = VIR_DUMP_MEMORY_ONLY;
@@ -4229,7 +4201,6 @@ processWatchdogEvent(virQEMUDriverPtr driver,
qemuDomainObjEndAsyncJob(driver, vm);
cleanup:
- virObjectUnref(cfg);
VIR_FREE(dumpfile);
}
@@ -4239,7 +4210,7 @@ doCoreDumpToAutoDumpPath(virQEMUDriverPtr driver,
unsigned int flags)
{
int ret = -1;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
char *dumpfile = getAutoDumpPath(driver, vm);
if (!dumpfile)
@@ -4252,7 +4223,6 @@ doCoreDumpToAutoDumpPath(virQEMUDriverPtr driver,
"%s", _("Dump failed"));
cleanup:
VIR_FREE(dumpfile);
- virObjectUnref(cfg);
return ret;
}
@@ -4281,13 +4251,13 @@ processGuestPanicEvent(virQEMUDriverPtr driver,
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virObjectEventPtr event = NULL;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
bool removeInactive = false;
unsigned long flags = VIR_DUMP_MEMORY_ONLY;
if (qemuDomainObjBeginAsyncJob(driver, vm, QEMU_ASYNC_JOB_DUMP,
VIR_DOMAIN_JOB_OPERATION_DUMP, flags) < 0)
- goto cleanup;
+ return;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Ignoring GUEST_PANICKED event from inactive domain %s",
@@ -4354,9 +4324,6 @@ processGuestPanicEvent(virQEMUDriverPtr driver,
qemuDomainObjEndAsyncJob(driver, vm);
if (removeInactive)
qemuDomainRemoveInactiveJob(driver, vm);
-
- cleanup:
- virObjectUnref(cfg);
}
@@ -4365,14 +4332,14 @@ processDeviceDeletedEvent(virQEMUDriverPtr driver,
virDomainObjPtr vm,
const char *devAlias)
{
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
virDomainDeviceDef dev;
VIR_DEBUG("Removing device %s from domain %p %s",
devAlias, vm, vm->def->name);
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
- goto cleanup;
+ return;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Domain is not running");
@@ -4395,9 +4362,6 @@ processDeviceDeletedEvent(virQEMUDriverPtr driver,
endjob:
qemuDomainObjEndJob(driver, vm);
-
- cleanup:
- virObjectUnref(cfg);
}
--
2.21.0
12:47 p.m.
New subject: [libvirt] [PATCH v2 2/9] qemu_driver: use VIR_AUTOUNREF() with virQEMUDriverConfigPtr 2/3
virQEMUDriverConfigPtr can be auto-unref for the great majority
of the uses made in qemu_driver, sparing us a virObjectUnref()
call and sometimes a whole 'cleanup' label.
This patch changes virQEMUDriverConfigPtr declarations to
use VIR_AUTOUNREF(). 'cleanup' labels were deleted when
applicable.
Since there are a lot of references to change, let's do it in
3 steps. This is step 2.
Signed-off-by: Daniel Henrique Barboza <danielhb413(a)gmail.com>
---
src/qemu/qemu_driver.c | 81 ++++++++++++++----------------------------
1 file changed, 26 insertions(+), 55 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 1e709c1e97..8321fbbe8b 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -4566,7 +4566,7 @@ processNicRxFilterChangedEvent(virQEMUDriverPtr driver,
virDomainObjPtr vm,
const char *devAlias)
{
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
qemuDomainObjPrivatePtr priv = vm->privateData;
virDomainDeviceDef dev;
virDomainNetDefPtr def;
@@ -4665,7 +4665,6 @@ processNicRxFilterChangedEvent(virQEMUDriverPtr driver,
cleanup:
virNetDevRxFilterFree(hostFilter);
virNetDevRxFilterFree(guestFilter);
- virObjectUnref(cfg);
}
@@ -4675,7 +4674,7 @@ processSerialChangedEvent(virQEMUDriverPtr driver,
const char *devAlias,
bool connected)
{
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
virDomainChrDeviceState newstate;
virObjectEventPtr event = NULL;
virDomainDeviceDef dev;
@@ -4708,7 +4707,7 @@ processSerialChangedEvent(virQEMUDriverPtr driver,
}
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
- goto cleanup;
+ return;
if (!virDomainObjIsActive(vm)) {
VIR_DEBUG("Domain is not running");
@@ -4749,9 +4748,6 @@ processSerialChangedEvent(virQEMUDriverPtr driver,
endjob:
qemuDomainObjEndJob(driver, vm);
-
- cleanup:
- virObjectUnref(cfg);
}
@@ -5024,21 +5020,20 @@ qemuDomainSetVcpusMax(virQEMUDriverPtr driver,
virDomainDefPtr persistentDef,
unsigned int nvcpus)
{
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
unsigned int topologycpus;
- int ret = -1;
if (def) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("maximum vcpu count of a live domain can't be
modified"));
- goto cleanup;
+ return -1;
}
if (virDomainNumaGetCPUCountTotal(persistentDef->numa) > nvcpus) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Number of CPUs in <numa> exceeds the desired "
"maximum vcpu count"));
- goto cleanup;
+ return -1;
}
if (virDomainDefGetVcpusTopology(persistentDef, &topologycpus) == 0 &&
@@ -5047,23 +5042,19 @@ qemuDomainSetVcpusMax(virQEMUDriverPtr driver,
* setting may be corrected via this API */
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("CPU topology doesn't match the desired vcpu
count"));
- goto cleanup;
+ return -1;
}
/* ordering information may become invalid, thus clear it */
virDomainDefVcpuOrderClear(persistentDef);
if (virDomainDefSetVcpusMax(persistentDef, nvcpus, driver->xmlopt) < 0)
- goto cleanup;
+ return -1;
if (virDomainSaveConfig(cfg->configDir, driver->caps, persistentDef) < 0)
- goto cleanup;
-
- ret = 0;
+ return -1;
- cleanup:
- virObjectUnref(cfg);
- return ret;
+ return 0;
}
@@ -5228,7 +5219,7 @@ qemuDomainPinVcpuFlags(virDomainPtr dom,
int ret = -1;
virBitmapPtr pcpumap = NULL;
virDomainVcpuDefPtr vcpuinfo = NULL;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
@@ -5285,7 +5276,6 @@ qemuDomainPinVcpuFlags(virDomainPtr dom,
cleanup:
virDomainObjEndAPI(&vm);
virBitmapFree(pcpumap);
- virObjectUnref(cfg);
return ret;
}
@@ -5348,7 +5338,7 @@ qemuDomainPinEmulator(virDomainPtr dom,
int ret = -1;
qemuDomainObjPrivatePtr priv;
virBitmapPtr pcpumap = NULL;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virObjectEventPtr event = NULL;
char *str = NULL;
virTypedParameterPtr eventParams = NULL;
@@ -5442,7 +5432,6 @@ qemuDomainPinEmulator(virDomainPtr dom,
VIR_FREE(str);
virBitmapFree(pcpumap);
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -5813,7 +5802,7 @@ qemuDomainPinIOThread(virDomainPtr dom,
{
int ret = -1;
virQEMUDriverPtr driver = dom->conn->privateData;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virDomainObjPtr vm;
virDomainDefPtr def;
virDomainDefPtr persistentDef;
@@ -5937,7 +5926,6 @@ qemuDomainPinIOThread(virDomainPtr dom,
VIR_FREE(str);
virBitmapFree(pcpumap);
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -6286,7 +6274,7 @@ qemuDomainChgIOThread(virQEMUDriverPtr driver,
virDomainIOThreadAction action,
unsigned int flags)
{
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
qemuDomainObjPrivatePtr priv;
virDomainDefPtr def;
virDomainDefPtr persistentDef;
@@ -6297,7 +6285,7 @@ qemuDomainChgIOThread(virQEMUDriverPtr driver,
priv = vm->privateData;
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
- goto cleanup;
+ return -1;
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
@@ -6385,8 +6373,6 @@ qemuDomainChgIOThread(virQEMUDriverPtr driver,
endjob:
qemuDomainObjEndJob(driver, vm);
- cleanup:
- virObjectUnref(cfg);
return ret;
}
@@ -6897,7 +6883,7 @@ qemuDomainSaveImageStartVM(virConnectPtr conn,
int intermediatefd = -1;
virCommandPtr cmd = NULL;
char *errbuf = NULL;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
virQEMUSaveHeaderPtr header = &data->header;
qemuDomainSaveCookiePtr cookie = NULL;
@@ -7019,7 +7005,6 @@ qemuDomainSaveImageStartVM(virConnectPtr conn,
VIR_FREE(errbuf);
if (qemuSecurityRestoreSavedStateLabel(driver, vm, path) < 0)
VIR_WARN("failed to restore save state label on %s", path);
- virObjectUnref(cfg);
return ret;
}
@@ -7444,13 +7429,11 @@ static char *qemuConnectDomainXMLToNative(virConnectPtr conn,
virCommandPtr cmd = NULL;
char *ret = NULL;
size_t i;
- virQEMUDriverConfigPtr cfg;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
virCapsPtr caps = NULL;
virCheckFlags(0, NULL);
- cfg = virQEMUDriverGetConfig(driver);
-
if (virConnectDomainXMLToNativeEnsureACL(conn) < 0)
goto cleanup;
@@ -7510,7 +7493,6 @@ static char *qemuConnectDomainXMLToNative(virConnectPtr conn,
virCommandFree(cmd);
virObjectUnref(vm);
virObjectUnref(caps);
- virObjectUnref(cfg);
return ret;
}
@@ -7697,7 +7679,7 @@ qemuDomainDefineXMLFlags(virConnectPtr conn,
virDomainObjPtr vm = NULL;
virDomainPtr dom = NULL;
virObjectEventPtr event = NULL;
- virQEMUDriverConfigPtr cfg;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
virCapsPtr caps = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_ABI_UPDATE;
@@ -7707,8 +7689,6 @@ qemuDomainDefineXMLFlags(virConnectPtr conn,
if (flags & VIR_DOMAIN_DEFINE_VALIDATE)
parse_flags |= VIR_DOMAIN_DEF_PARSE_VALIDATE_SCHEMA;
- cfg = virQEMUDriverGetConfig(driver);
-
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
goto cleanup;
@@ -7765,7 +7745,6 @@ qemuDomainDefineXMLFlags(virConnectPtr conn,
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
virObjectUnref(caps);
- virObjectUnref(cfg);
return dom;
}
@@ -7786,7 +7765,7 @@ qemuDomainUndefineFlags(virDomainPtr dom,
int ret = -1;
int nsnapshots;
int ncheckpoints;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCheckFlags(VIR_DOMAIN_UNDEFINE_MANAGED_SAVE |
VIR_DOMAIN_UNDEFINE_SNAPSHOTS_METADATA |
@@ -7906,7 +7885,6 @@ qemuDomainUndefineFlags(virDomainPtr dom,
VIR_FREE(name);
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
- virObjectUnref(cfg);
return ret;
}
@@ -8726,7 +8704,7 @@ qemuDomainAttachDeviceLiveAndConfig(virDomainObjPtr vm,
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virDomainDefPtr vmdef = NULL;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virDomainDeviceDefPtr devConf = NULL;
virDomainDeviceDefPtr devLive = NULL;
int ret = -1;
@@ -8811,7 +8789,6 @@ qemuDomainAttachDeviceLiveAndConfig(virDomainObjPtr vm,
virDomainDefFree(vmdef);
virDomainDeviceDefFree(devConf);
virDomainDeviceDefFree(devLive);
- virObjectUnref(cfg);
virObjectUnref(caps);
return ret;
@@ -8872,7 +8849,7 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
virDomainDeviceDefPtr dev = NULL, dev_copy = NULL;
bool force = (flags & VIR_DOMAIN_DEVICE_MODIFY_FORCE) != 0;
int ret = -1;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCapsPtr caps = NULL;
unsigned int parse_flags = 0;
@@ -8973,7 +8950,6 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
virDomainDeviceDefFree(dev);
virDomainObjEndAPI(&vm);
virObjectUnref(caps);
- virObjectUnref(cfg);
virNWFilterUnlockFilterUpdates();
return ret;
}
@@ -8986,7 +8962,7 @@ qemuDomainDetachDeviceLiveAndConfig(virQEMUDriverPtr driver,
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virCapsPtr caps = NULL;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virDomainDeviceDefPtr dev = NULL, dev_copy = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE;
virDomainDefPtr vmdef = NULL;
@@ -9065,7 +9041,6 @@ qemuDomainDetachDeviceLiveAndConfig(virQEMUDriverPtr driver,
cleanup:
virObjectUnref(caps);
- virObjectUnref(cfg);
if (dev != dev_copy)
virDomainDeviceDefFree(dev_copy);
virDomainDeviceDefFree(dev);
@@ -9082,7 +9057,7 @@ qemuDomainDetachDeviceAliasLiveAndConfig(virQEMUDriverPtr driver,
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virCapsPtr caps = NULL;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virDomainDefPtr def = NULL;
virDomainDefPtr persistentDef = NULL;
virDomainDefPtr vmdef = NULL;
@@ -9143,7 +9118,6 @@ qemuDomainDetachDeviceAliasLiveAndConfig(virQEMUDriverPtr driver,
ret = 0;
cleanup:
virDomainDefFree(vmdef);
- virObjectUnref(cfg);
virObjectUnref(caps);
return ret;
}
@@ -9252,7 +9226,7 @@ static int qemuDomainSetAutostart(virDomainPtr dom,
virDomainObjPtr vm;
char *configFile = NULL, *autostartLink = NULL;
int ret = -1;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
@@ -9317,7 +9291,6 @@ static int qemuDomainSetAutostart(virDomainPtr dom,
VIR_FREE(configFile);
VIR_FREE(autostartLink);
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -9564,7 +9537,7 @@ qemuDomainSetBlkioParameters(virDomainPtr dom,
virDomainDefPtr def;
virDomainDefPtr persistentDef;
int ret = -1;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
qemuDomainObjPrivatePtr priv;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
@@ -9764,7 +9737,6 @@ qemuDomainSetBlkioParameters(virDomainPtr dom,
cleanup:
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -9876,7 +9848,7 @@ qemuDomainSetMemoryParameters(virDomainPtr dom,
bool set_swap_hard_limit = false;
bool set_hard_limit = false;
bool set_soft_limit = false;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
int rc;
int ret = -1;
qemuDomainObjPrivatePtr priv;
@@ -10001,7 +9973,6 @@ qemuDomainSetMemoryParameters(virDomainPtr dom,
cleanup:
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
--
2.21.0
12:47 p.m.
New subject: [libvirt] [PATCH v2 3/9] qemu_driver: use VIR_AUTOUNREF() with virQEMUDriverConfigPtr 3/3
virQEMUDriverConfigPtr can be auto-unref for the great majority
of the uses made in qemu_driver, sparing us a virObjectUnref()
call and sometimes a whole 'cleanup' label.
This patch changes virQEMUDriverConfigPtr declarations to
use VIR_AUTOUNREF(). 'cleanup' labels were deleted when
applicable.
This is the last part of this change. All but one* instance of
virQEMUDriverConfigPtr were changed to use VIR_AUTOUNREF().
'cleanup' labels were deleted when applicable.
* qemuStateInitialize: we can't auto-unref the pointer since we're
initializing the qemu_driver object with it.
Signed-off-by: Daniel Henrique Barboza <danielhb413(a)gmail.com>
---
src/qemu/qemu_driver.c | 51 ++++++++++++++----------------------------
1 file changed, 17 insertions(+), 34 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 8321fbbe8b..2204b2bf5d 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -10137,7 +10137,7 @@ qemuDomainSetNumaParameters(virDomainPtr dom,
virDomainDefPtr persistentDef;
virDomainObjPtr vm = NULL;
int ret = -1;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
qemuDomainObjPrivatePtr priv;
virBitmapPtr nodeset = NULL;
virDomainNumatuneMemMode config_mode;
@@ -10249,7 +10249,6 @@ qemuDomainSetNumaParameters(virDomainPtr dom,
cleanup:
virBitmapFree(nodeset);
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -10354,7 +10353,7 @@ qemuDomainSetPerfEvents(virDomainPtr dom,
virQEMUDriverPtr driver = dom->conn->privateData;
size_t i;
virDomainObjPtr vm = NULL;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
qemuDomainObjPrivatePtr priv;
virDomainDefPtr def;
virDomainDefPtr persistentDef;
@@ -10446,7 +10445,6 @@ qemuDomainSetPerfEvents(virDomainPtr dom,
cleanup:
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -10633,7 +10631,7 @@ qemuDomainSetSchedulerParametersFlags(virDomainPtr dom,
long long value_l;
int ret = -1;
int rc;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCapsPtr caps = NULL;
qemuDomainObjPrivatePtr priv;
virObjectEventPtr event = NULL;
@@ -10927,7 +10925,6 @@ qemuDomainSetSchedulerParametersFlags(virDomainPtr dom,
if (eventNparams)
virTypedParamsFree(eventParams, eventNparams);
virObjectUnref(caps);
- virObjectUnref(cfg);
return ret;
}
#undef SCHED_RANGE_CHECK
@@ -11592,7 +11589,7 @@ qemuDomainSetInterfaceParameters(virDomainPtr dom,
int ret = -1;
virDomainNetDefPtr net = NULL, persistentNet = NULL;
virNetDevBandwidthPtr bandwidth = NULL, newBandwidth = NULL;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
bool inboundSpecified = false, outboundSpecified = false;
int actualType;
bool qosSupported = true;
@@ -11787,7 +11784,6 @@ qemuDomainSetInterfaceParameters(virDomainPtr dom,
virNetDevBandwidthFree(bandwidth);
virNetDevBandwidthFree(newBandwidth);
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -12049,7 +12045,7 @@ qemuDomainMemoryPeek(virDomainPtr dom,
char *tmp = NULL;
int fd = -1, ret = -1;
qemuDomainObjPrivatePtr priv;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCheckFlags(VIR_MEMORY_VIRTUAL | VIR_MEMORY_PHYSICAL, -1);
@@ -12120,7 +12116,6 @@ qemuDomainMemoryPeek(virDomainPtr dom,
unlink(tmp);
VIR_FREE(tmp);
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -12337,7 +12332,7 @@ qemuDomainGetBlockInfo(virDomainPtr dom,
virDomainObjPtr vm;
int ret = -1;
virDomainDiskDefPtr disk;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
qemuBlockStatsPtr entry = NULL;
virCheckFlags(0, -1);
@@ -12426,7 +12421,6 @@ qemuDomainGetBlockInfo(virDomainPtr dom,
cleanup:
VIR_FREE(entry);
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -12898,7 +12892,7 @@ qemuDomainMigratePrepare3Params(virConnectPtr dconn,
unsigned int flags)
{
virQEMUDriverPtr driver = dconn->privateData;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
virDomainDefPtr def = NULL;
const char *dom_xml = NULL;
const char *dname = NULL;
@@ -12972,7 +12966,6 @@ qemuDomainMigratePrepare3Params(virConnectPtr dconn,
VIR_FREE(migrate_disks);
VIR_FREE(origname);
virDomainDefFree(def);
- virObjectUnref(cfg);
return ret;
}
@@ -14542,7 +14535,7 @@ qemuDomainSnapshotCreateInactiveExternal(virQEMUDriverPtr driver,
virCommandPtr cmd = NULL;
const char *qemuImgPath;
virBitmapPtr created = NULL;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
int ret = -1;
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainSnapshotDefPtr snapdef = virDomainSnapshotObjGetDef(snap);
@@ -14630,7 +14623,6 @@ qemuDomainSnapshotCreateInactiveExternal(virQEMUDriverPtr driver,
}
}
virBitmapFree(created);
- virObjectUnref(cfg);
return ret;
}
@@ -15732,7 +15724,7 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain,
unsigned int parse_flags = VIR_DOMAIN_SNAPSHOT_PARSE_DISKS;
int align_location = VIR_DOMAIN_SNAPSHOT_LOCATION_INTERNAL;
bool align_match = true;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCapsPtr caps = NULL;
qemuDomainObjPrivatePtr priv;
virDomainSnapshotState state;
@@ -16013,7 +16005,6 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain,
virDomainObjEndAPI(&vm);
VIR_FREE(xml);
virObjectUnref(caps);
- virObjectUnref(cfg);
return snapshot;
}
@@ -16424,7 +16415,7 @@ qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot,
int rc;
virDomainDefPtr config = NULL;
virDomainDefPtr inactiveConfig = NULL;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCapsPtr caps = NULL;
bool was_stopped = false;
qemuDomainSaveCookiePtr cookie;
@@ -16854,7 +16845,6 @@ qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot,
virObjectEventStateQueue(driver->domainEventState, event2);
virDomainObjEndAPI(&vm);
virObjectUnref(caps);
- virObjectUnref(cfg);
virNWFilterUnlockFilterUpdates();
virCPUDefFree(origCPU);
virDomainDefFree(config);
@@ -16915,7 +16905,7 @@ qemuDomainSnapshotDelete(virDomainSnapshotPtr snapshot,
virQEMUMomentReparent rep;
bool metadata_only = !!(flags & VIR_DOMAIN_SNAPSHOT_DELETE_METADATA_ONLY);
int external = 0;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCheckFlags(VIR_DOMAIN_SNAPSHOT_DELETE_CHILDREN |
VIR_DOMAIN_SNAPSHOT_DELETE_METADATA_ONLY |
@@ -17007,7 +16997,6 @@ qemuDomainSnapshotDelete(virDomainSnapshotPtr snapshot,
cleanup:
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
@@ -17587,7 +17576,7 @@ qemuDomainBlockJobAbort(virDomainPtr dom,
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainDiskDefPtr disk = NULL;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
bool pivot = !!(flags & VIR_DOMAIN_BLOCK_JOB_ABORT_PIVOT);
bool async = !!(flags & VIR_DOMAIN_BLOCK_JOB_ABORT_ASYNC);
qemuBlockJobDataPtr job = NULL;
@@ -17692,7 +17681,6 @@ qemuDomainBlockJobAbort(virDomainPtr dom,
cleanup:
virObjectUnref(job);
- virObjectUnref(cfg);
virDomainObjEndAPI(&vm);
return ret;
}
@@ -18952,7 +18940,7 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
bool supportMaxOptions = true;
bool supportGroupNameOption = true;
bool supportMaxLengthOptions = true;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virObjectEventPtr event = NULL;
virTypedParameterPtr eventParams = NULL;
int eventNparams = 0;
@@ -19273,7 +19261,6 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
virDomainObjEndAPI(&vm);
if (eventNparams)
virTypedParamsFree(eventParams, eventNparams);
- virObjectUnref(cfg);
return ret;
}
@@ -19523,7 +19510,7 @@ qemuDomainSetMetadata(virDomainPtr dom,
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virCapsPtr caps = NULL;
int ret = -1;
@@ -19559,7 +19546,6 @@ qemuDomainSetMetadata(virDomainPtr dom,
cleanup:
virDomainObjEndAPI(&vm);
virObjectUnref(caps);
- virObjectUnref(cfg);
return ret;
}
@@ -21146,7 +21132,7 @@ qemuDomainGetStatsBlock(virQEMUDriverPtr driver,
virHashTablePtr nodestats = NULL;
virJSONValuePtr nodedata = NULL;
qemuDomainObjPrivatePtr priv = dom->privateData;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
bool blockdev = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV);
bool fetchnodedata = virQEMUCapsGet(priv->qemuCaps,
QEMU_CAPS_QUERY_NAMED_BLOCK_NODES) &&
!blockdev;
@@ -21204,7 +21190,6 @@ qemuDomainGetStatsBlock(virQEMUDriverPtr driver,
virHashFree(stats);
virHashFree(nodestats);
virJSONValueFree(nodedata);
- virObjectUnref(cfg);
return ret;
}
@@ -21843,7 +21828,7 @@ qemuDomainRenameCallback(virDomainObjPtr vm,
void *opaque)
{
virQEMUDriverPtr driver = opaque;
- virQEMUDriverConfigPtr cfg = NULL;
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virObjectEventPtr event_new = NULL;
virObjectEventPtr event_old = NULL;
int ret = -1;
@@ -21932,7 +21917,6 @@ qemuDomainRenameCallback(virDomainObjPtr vm,
VIR_FREE(new_dom_name);
virObjectEventStateQueue(driver->domainEventState, event_old);
virObjectEventStateQueue(driver->domainEventState, event_new);
- virObjectUnref(cfg);
return ret;
rollback:
@@ -22395,7 +22379,7 @@ qemuDomainSetLifecycleAction(virDomainPtr dom,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
- virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
qemuDomainObjPrivatePtr priv;
virDomainObjPtr vm = NULL;
virDomainDefPtr def = NULL;
@@ -22452,7 +22436,6 @@ qemuDomainSetLifecycleAction(virDomainPtr dom,
cleanup:
virDomainObjEndAPI(&vm);
- virObjectUnref(cfg);
return ret;
}
--
2.21.0
12:47 p.m.
New subject: [libvirt] [PATCH v2 4/9] qemu_driver: use VIR_AUTOUNREF() with virCapsPtr
virCapsPtr can be auto-unref for the great majority
of the uses made in qemu_driver, sparing us a virObjectUnref()
call and sometimes a whole 'cleanup' label.
This patch changes virCapsPtr declarations to use VIR_AUTOUNREF().
'cleanup' labels were deleted when possible.
Suggested-by: Erik Skultety <eskultet(a)redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413(a)gmail.com>
---
src/qemu/qemu_driver.c | 113 ++++++++++++++---------------------------
1 file changed, 37 insertions(+), 76 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 2204b2bf5d..9958164788 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -396,7 +396,7 @@ qemuDomainSnapshotLoad(virDomainObjPtr vm,
VIR_DOMAIN_SNAPSHOT_PARSE_DISKS |
VIR_DOMAIN_SNAPSHOT_PARSE_INTERNAL);
int ret = -1;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
int direrr;
qemuDomainObjPrivatePtr priv;
@@ -495,7 +495,6 @@ qemuDomainSnapshotLoad(virDomainObjPtr vm,
cleanup:
VIR_DIR_CLOSE(dir);
VIR_FREE(snapDir);
- virObjectUnref(caps);
virObjectUnlock(vm);
return ret;
}
@@ -516,7 +515,7 @@ qemuDomainCheckpointLoad(virDomainObjPtr vm,
virDomainMomentObjPtr current = NULL;
unsigned int flags = VIR_DOMAIN_CHECKPOINT_PARSE_REDEFINE;
int ret = -1;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
int direrr;
qemuDomainObjPrivatePtr priv;
@@ -606,7 +605,6 @@ qemuDomainCheckpointLoad(virDomainObjPtr vm,
cleanup:
VIR_DIR_CLOSE(dir);
VIR_FREE(chkDir);
- virObjectUnref(caps);
virObjectUnlock(vm);
return ret;
}
@@ -1067,13 +1065,13 @@ static int
qemuStateReload(void)
{
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
if (!qemu_driver)
return 0;
if (!(caps = virQEMUDriverGetCapabilities(qemu_driver, false)))
- goto cleanup;
+ return 0;
cfg = virQEMUDriverGetConfig(qemu_driver);
virDomainObjListLoadAllConfigs(qemu_driver->domains,
@@ -1081,8 +1079,6 @@ qemuStateReload(void)
cfg->autostartDir, false,
caps, qemu_driver->xmlopt,
qemuNotifyLoadDomain, qemu_driver);
- cleanup:
- virObjectUnref(caps);
return 0;
}
@@ -1351,21 +1347,15 @@ qemuConnectGetMaxVcpus(virConnectPtr conn ATTRIBUTE_UNUSED, const
char *type)
static char *qemuConnectGetCapabilities(virConnectPtr conn) {
virQEMUDriverPtr driver = conn->privateData;
- virCapsPtr caps = NULL;
- char *xml = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
if (virConnectGetCapabilitiesEnsureACL(conn) < 0)
return NULL;
if (!(caps = virQEMUDriverGetCapabilities(driver, true)))
- goto cleanup;
-
- xml = virCapabilitiesFormatXML(caps);
- virObjectUnref(caps);
-
- cleanup:
+ return NULL;
- return xml;
+ return virCapabilitiesFormatXML(caps);
}
@@ -1711,27 +1701,22 @@ static int qemuDomainIsUpdated(virDomainPtr dom)
static int qemuConnectGetVersion(virConnectPtr conn, unsigned long *version)
{
virQEMUDriverPtr driver = conn->privateData;
- int ret = -1;
unsigned int qemuVersion = 0;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
if (virConnectGetVersionEnsureACL(conn) < 0)
return -1;
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
- goto cleanup;
+ return -1;
if (virQEMUCapsGetDefaultVersion(caps,
driver->qemuCapsCache,
&qemuVersion) < 0)
- goto cleanup;
+ return -1;
*version = qemuVersion;
- ret = 0;
-
- cleanup:
- virObjectUnref(caps);
- return ret;
+ return 0;
}
@@ -1784,7 +1769,7 @@ static virDomainPtr qemuDomainCreateXML(virConnectPtr conn,
virObjectEventPtr event = NULL;
virObjectEventPtr event2 = NULL;
unsigned int start_flags = VIR_QEMU_PROCESS_START_COLD;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_ABI_UPDATE;
@@ -1859,7 +1844,6 @@ static virDomainPtr qemuDomainCreateXML(virConnectPtr conn,
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
virObjectEventStateQueue(driver->domainEventState, event2);
- virObjectUnref(caps);
virNWFilterUnlockFilterUpdates();
return dom;
}
@@ -3319,7 +3303,7 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver,
int ret = -1;
virObjectEventPtr event = NULL;
qemuDomainObjPrivatePtr priv = vm->privateData;
- virCapsPtr caps;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
virQEMUSaveDataPtr data = NULL;
qemuDomainSaveCookiePtr cookie = NULL;
@@ -3434,7 +3418,6 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver,
VIR_FREE(xml);
virQEMUSaveDataFree(data);
virObjectEventStateQueue(driver->domainEventState, event);
- virObjectUnref(caps);
return ret;
}
@@ -6599,29 +6582,27 @@ static int qemuNodeGetSecurityModel(virConnectPtr conn,
{
virQEMUDriverPtr driver = conn->privateData;
char *p;
- int ret = 0;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
memset(secmodel, 0, sizeof(*secmodel));
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
- goto cleanup;
+ return 0;
if (virNodeGetSecurityModelEnsureACL(conn) < 0)
- goto cleanup;
+ return 0;
/* We treat no driver as success, but simply return no data in *secmodel */
if (caps->host.nsecModels == 0 ||
caps->host.secModels[0].model == NULL)
- goto cleanup;
+ return 0;
p = caps->host.secModels[0].model;
if (strlen(p) >= VIR_SECURITY_MODEL_BUFLEN-1) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("security model string exceeds max %d bytes"),
VIR_SECURITY_MODEL_BUFLEN-1);
- ret = -1;
- goto cleanup;
+ return -1;
}
strcpy(secmodel->model, p);
@@ -6630,14 +6611,11 @@ static int qemuNodeGetSecurityModel(virConnectPtr conn,
virReportError(VIR_ERR_INTERNAL_ERROR,
_("security DOI string exceeds max %d bytes"),
VIR_SECURITY_DOI_BUFLEN-1);
- ret = -1;
- goto cleanup;
+ return -1;
}
strcpy(secmodel->doi, p);
- cleanup:
- virObjectUnref(caps);
- return ret;
+ return 0;
}
@@ -6658,7 +6636,7 @@ qemuDomainSaveImageUpdateDef(virQEMUDriverPtr driver,
virDomainDefPtr ret = NULL;
virDomainDefPtr newdef_migr = NULL;
virDomainDefPtr newdef = NULL;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
goto cleanup;
@@ -6696,7 +6674,6 @@ qemuDomainSaveImageUpdateDef(virQEMUDriverPtr driver,
}
cleanup:
- virObjectUnref(caps);
virDomainDefFree(newdef);
virDomainDefFree(newdef_migr);
@@ -6736,7 +6713,7 @@ qemuDomainSaveImageOpen(virQEMUDriverPtr driver,
virQEMUSaveHeaderPtr header;
virDomainDefPtr def = NULL;
int oflags = open_write ? O_RDWR : O_RDONLY;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
size_t xml_len;
size_t cookie_len;
@@ -6856,7 +6833,6 @@ qemuDomainSaveImageOpen(virQEMUDriverPtr driver,
*ret_data = data;
cleanup:
- virObjectUnref(caps);
return fd;
error:
@@ -7430,7 +7406,7 @@ static char *qemuConnectDomainXMLToNative(virConnectPtr conn,
char *ret = NULL;
size_t i;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
virCheckFlags(0, NULL);
@@ -7492,7 +7468,6 @@ static char *qemuConnectDomainXMLToNative(virConnectPtr conn,
cleanup:
virCommandFree(cmd);
virObjectUnref(vm);
- virObjectUnref(caps);
return ret;
}
@@ -7680,7 +7655,7 @@ qemuDomainDefineXMLFlags(virConnectPtr conn,
virDomainPtr dom = NULL;
virObjectEventPtr event = NULL;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_ABI_UPDATE;
@@ -7744,7 +7719,6 @@ qemuDomainDefineXMLFlags(virConnectPtr conn,
virDomainDefFree(def);
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
- virObjectUnref(caps);
return dom;
}
@@ -8708,7 +8682,7 @@ qemuDomainAttachDeviceLiveAndConfig(virDomainObjPtr vm,
virDomainDeviceDefPtr devConf = NULL;
virDomainDeviceDefPtr devLive = NULL;
int ret = -1;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_ABI_UPDATE;
@@ -8789,7 +8763,6 @@ qemuDomainAttachDeviceLiveAndConfig(virDomainObjPtr vm,
virDomainDefFree(vmdef);
virDomainDeviceDefFree(devConf);
virDomainDeviceDefFree(devLive);
- virObjectUnref(caps);
return ret;
}
@@ -8850,7 +8823,7 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
bool force = (flags & VIR_DOMAIN_DEVICE_MODIFY_FORCE) != 0;
int ret = -1;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
unsigned int parse_flags = 0;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
@@ -8949,7 +8922,6 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
virDomainDeviceDefFree(dev_copy);
virDomainDeviceDefFree(dev);
virDomainObjEndAPI(&vm);
- virObjectUnref(caps);
virNWFilterUnlockFilterUpdates();
return ret;
}
@@ -8961,7 +8933,7 @@ qemuDomainDetachDeviceLiveAndConfig(virQEMUDriverPtr driver,
unsigned int flags)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virDomainDeviceDefPtr dev = NULL, dev_copy = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE;
@@ -9040,7 +9012,6 @@ qemuDomainDetachDeviceLiveAndConfig(virQEMUDriverPtr driver,
ret = 0;
cleanup:
- virObjectUnref(caps);
if (dev != dev_copy)
virDomainDeviceDefFree(dev_copy);
virDomainDeviceDefFree(dev);
@@ -9056,7 +9027,7 @@ qemuDomainDetachDeviceAliasLiveAndConfig(virQEMUDriverPtr driver,
unsigned int flags)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virDomainDefPtr def = NULL;
virDomainDefPtr persistentDef = NULL;
@@ -9118,7 +9089,6 @@ qemuDomainDetachDeviceAliasLiveAndConfig(virQEMUDriverPtr driver,
ret = 0;
cleanup:
virDomainDefFree(vmdef);
- virObjectUnref(caps);
return ret;
}
@@ -10632,7 +10602,7 @@ qemuDomainSetSchedulerParametersFlags(virDomainPtr dom,
int ret = -1;
int rc;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
qemuDomainObjPrivatePtr priv;
virObjectEventPtr event = NULL;
virTypedParameterPtr eventParams = NULL;
@@ -10924,7 +10894,6 @@ qemuDomainSetSchedulerParametersFlags(virDomainPtr dom,
virDomainObjEndAPI(&vm);
if (eventNparams)
virTypedParamsFree(eventParams, eventNparams);
- virObjectUnref(caps);
return ret;
}
#undef SCHED_RANGE_CHECK
@@ -13536,27 +13505,22 @@ qemuConnectCompareCPU(virConnectPtr conn,
unsigned int flags)
{
virQEMUDriverPtr driver = conn->privateData;
- int ret = VIR_CPU_COMPARE_ERROR;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
bool failIncompatible;
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE,
VIR_CPU_COMPARE_ERROR);
if (virConnectCompareCPUEnsureACL(conn) < 0)
- goto cleanup;
+ return VIR_CPU_COMPARE_ERROR;
failIncompatible = !!(flags & VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE);
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
- goto cleanup;
-
- ret = virCPUCompareXML(caps->host.arch, caps->host.cpu,
- xmlDesc, failIncompatible);
+ return VIR_CPU_COMPARE_ERROR;
- cleanup:
- virObjectUnref(caps);
- return ret;
+ return virCPUCompareXML(caps->host.arch, caps->host.cpu,
+ xmlDesc, failIncompatible);
}
@@ -15725,7 +15689,7 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain,
int align_location = VIR_DOMAIN_SNAPSHOT_LOCATION_INTERNAL;
bool align_match = true;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
qemuDomainObjPrivatePtr priv;
virDomainSnapshotState state;
VIR_AUTOUNREF(virDomainSnapshotDefPtr) def = NULL;
@@ -16004,7 +15968,6 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain,
cleanup:
virDomainObjEndAPI(&vm);
VIR_FREE(xml);
- virObjectUnref(caps);
return snapshot;
}
@@ -16416,7 +16379,7 @@ qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot,
virDomainDefPtr config = NULL;
virDomainDefPtr inactiveConfig = NULL;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
bool was_stopped = false;
qemuDomainSaveCookiePtr cookie;
virCPUDefPtr origCPU = NULL;
@@ -16844,7 +16807,6 @@ qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot,
virObjectEventStateQueue(driver->domainEventState, event);
virObjectEventStateQueue(driver->domainEventState, event2);
virDomainObjEndAPI(&vm);
- virObjectUnref(caps);
virNWFilterUnlockFilterUpdates();
virCPUDefFree(origCPU);
virDomainDefFree(config);
@@ -19511,7 +19473,7 @@ qemuDomainSetMetadata(virDomainPtr dom,
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
- virCapsPtr caps = NULL;
+ VIR_AUTOUNREF(virCapsPtr) caps = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
@@ -19545,7 +19507,6 @@ qemuDomainSetMetadata(virDomainPtr dom,
cleanup:
virDomainObjEndAPI(&vm);
- virObjectUnref(caps);
return ret;
}
--
2.21.0
12:47 p.m.
New subject: [libvirt] [PATCH v2 5/9] qemu_driver: use VIR_AUTOUNREF() with more pointer types
This patch uses VIR_AUTOUNREF() with the following pointer types:
- virQEMUCapsPtr
- virConnect
- qemuDomainSaveCookiePtr
- virDomainCapsPtr
- qemuBlockJobDataPtr*
- virNetworkPtr
- virSecurityManagerPtr
'cleanup' labels were deleted when possible.
* instances being cleaned up with qemuBlockJobStartupFinalize()
weren't changed, since qemuBlockJobStartupFinalize() will
unref the object after qemuBlockJobUnregister().
Suggested-by: Erik Skultety <eskultet(a)redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413(a)gmail.com>
---
src/qemu/qemu_driver.c | 76 +++++++++++++++---------------------------
1 file changed, 27 insertions(+), 49 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 9958164788..48eca00777 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -305,8 +305,8 @@ static int
qemuSecurityInit(virQEMUDriverPtr driver)
{
char **names;
- virSecurityManagerPtr mgr = NULL;
- virSecurityManagerPtr stack = NULL;
+ VIR_AUTOUNREF(virSecurityManagerPtr) mgr = NULL;
+ VIR_AUTOUNREF(virSecurityManagerPtr) stack = NULL;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
unsigned int flags = 0;
@@ -372,8 +372,6 @@ qemuSecurityInit(virQEMUDriverPtr driver)
error:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to initialize security drivers"));
- virObjectUnref(stack);
- virObjectUnref(mgr);
return -1;
}
@@ -1093,7 +1091,7 @@ static int
qemuStateStop(void)
{
int ret = -1;
- virConnectPtr conn;
+ VIR_AUTOUNREF(virConnectPtr) conn = NULL;
int numDomains = 0;
size_t i;
int state;
@@ -1137,7 +1135,6 @@ qemuStateStop(void)
VIR_FREE(domains);
}
VIR_FREE(flags);
- virObjectUnref(conn);
return ret;
}
@@ -3305,7 +3302,7 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver,
qemuDomainObjPrivatePtr priv = vm->privateData;
VIR_AUTOUNREF(virCapsPtr) caps = NULL;
virQEMUSaveDataPtr data = NULL;
- qemuDomainSaveCookiePtr cookie = NULL;
+ VIR_AUTOUNREF(qemuDomainSaveCookiePtr) cookie = NULL;
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
goto cleanup;
@@ -3414,7 +3411,6 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver,
qemuDomainRemoveInactiveJob(driver, vm);
cleanup:
- virObjectUnref(cookie);
VIR_FREE(xml);
virQEMUSaveDataFree(data);
virObjectEventStateQueue(driver->domainEventState, event);
@@ -6861,7 +6857,7 @@ qemuDomainSaveImageStartVM(virConnectPtr conn,
char *errbuf = NULL;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
virQEMUSaveHeaderPtr header = &data->header;
- qemuDomainSaveCookiePtr cookie = NULL;
+ VIR_AUTOUNREF(qemuDomainSaveCookiePtr) cookie = NULL;
if (virSaveCookieParseString(data->cookie, (virObjectPtr *)&cookie,
virDomainXMLOptionGetSaveCookie(driver->xmlopt)) <
0)
@@ -6976,7 +6972,6 @@ qemuDomainSaveImageStartVM(virConnectPtr conn,
ret = 0;
cleanup:
- virObjectUnref(cookie);
virCommandFree(cmd);
VIR_FREE(errbuf);
if (qemuSecurityRestoreSavedStateLabel(driver, vm, path) < 0)
@@ -13533,9 +13528,8 @@ qemuConnectCompareHypervisorCPU(virConnectPtr conn,
const char *xmlCPU,
unsigned int flags)
{
- int ret = VIR_CPU_COMPARE_ERROR;
virQEMUDriverPtr driver = conn->privateData;
- virQEMUCapsPtr qemuCaps = NULL;
+ VIR_AUTOUNREF(virQEMUCapsPtr) qemuCaps = NULL;
bool failIncompatible;
virCPUDefPtr hvCPU;
virArch arch;
@@ -13545,7 +13539,7 @@ qemuConnectCompareHypervisorCPU(virConnectPtr conn,
VIR_CPU_COMPARE_ERROR);
if (virConnectCompareHypervisorCPUEnsureACL(conn) < 0)
- goto cleanup;
+ return VIR_CPU_COMPARE_ERROR;
failIncompatible = !!(flags & VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE);
@@ -13556,7 +13550,7 @@ qemuConnectCompareHypervisorCPU(virConnectPtr conn,
machine,
&arch, &virttype, NULL);
if (!qemuCaps)
- goto cleanup;
+ return VIR_CPU_COMPARE_ERROR;
hvCPU = virQEMUCapsGetHostModel(qemuCaps, virttype,
VIR_QEMU_CAPS_HOST_CPU_REPORTED);
@@ -13567,20 +13561,18 @@ qemuConnectCompareHypervisorCPU(virConnectPtr conn,
"virttype '%s'"),
virQEMUCapsGetBinary(qemuCaps),
virDomainVirtTypeToString(virttype));
- goto cleanup;
+ return VIR_CPU_COMPARE_ERROR;
}
if (ARCH_IS_X86(arch)) {
- ret = virCPUCompareXML(arch, hvCPU, xmlCPU, failIncompatible);
+ return virCPUCompareXML(arch, hvCPU, xmlCPU, failIncompatible);
} else {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("comparing with the hypervisor CPU is not supported "
"for arch %s"), virArchToString(arch));
}
- cleanup:
- virObjectUnref(qemuCaps);
- return ret;
+ return VIR_CPU_COMPARE_ERROR;
}
@@ -13643,7 +13635,7 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
{
virQEMUDriverPtr driver = conn->privateData;
virCPUDefPtr *cpus = NULL;
- virQEMUCapsPtr qemuCaps = NULL;
+ VIR_AUTOUNREF(virQEMUCapsPtr) qemuCaps = NULL;
virArch arch;
virDomainVirtType virttype;
virDomainCapsCPUModelsPtr cpuModels;
@@ -13714,7 +13706,6 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
cleanup:
virCPUDefListFree(cpus);
virCPUDefFree(cpu);
- virObjectUnref(qemuCaps);
virStringListFree(features);
return cpustr;
@@ -17541,7 +17532,7 @@ qemuDomainBlockJobAbort(virDomainPtr dom,
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
bool pivot = !!(flags & VIR_DOMAIN_BLOCK_JOB_ABORT_PIVOT);
bool async = !!(flags & VIR_DOMAIN_BLOCK_JOB_ABORT_ASYNC);
- qemuBlockJobDataPtr job = NULL;
+ VIR_AUTOUNREF(qemuBlockJobDataPtr) job = NULL;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv = NULL;
bool blockdev = false;
@@ -17642,7 +17633,6 @@ qemuDomainBlockJobAbort(virDomainPtr dom,
qemuDomainObjEndJob(driver, vm);
cleanup:
- virObjectUnref(job);
virDomainObjEndAPI(&vm);
return ret;
}
@@ -20312,17 +20302,16 @@ qemuConnectGetDomainCapabilities(virConnectPtr conn,
const char *virttype_str,
unsigned int flags)
{
- char *ret = NULL;
virQEMUDriverPtr driver = conn->privateData;
- virQEMUCapsPtr qemuCaps = NULL;
+ VIR_AUTOUNREF(virQEMUCapsPtr) qemuCaps = NULL;
virArch arch;
virDomainVirtType virttype;
- virDomainCapsPtr domCaps = NULL;
+ VIR_AUTOUNREF(virDomainCapsPtr) domCaps = NULL;
- virCheckFlags(0, ret);
+ virCheckFlags(0, NULL);
if (virConnectGetDomainCapabilitiesEnsureACL(conn) < 0)
- return ret;
+ return NULL;
qemuCaps = virQEMUCapsCacheLookupDefault(driver->qemuCapsCache,
emulatorbin,
@@ -20331,18 +20320,14 @@ qemuConnectGetDomainCapabilities(virConnectPtr conn,
machine,
&arch, &virttype, &machine);
if (!qemuCaps)
- goto cleanup;
+ return NULL;
if (!(domCaps = virQEMUDriverGetDomainCapabilities(driver,
qemuCaps, machine,
arch, virttype)))
- goto cleanup;
+ return NULL;
- ret = virDomainCapsFormat(domCaps);
- cleanup:
- virObjectUnref(domCaps);
- virObjectUnref(qemuCaps);
- return ret;
+ return virDomainCapsFormat(domCaps);
}
@@ -21585,7 +21570,7 @@ qemuGetDHCPInterfaces(virDomainPtr dom,
int n_leases = 0;
size_t i, j;
size_t ifaces_count = 0;
- virNetworkPtr network = NULL;
+ VIR_AUTOUNREF(virNetworkPtr) network = NULL;
char macaddr[VIR_MAC_STRING_BUFLEN];
virDomainInterfacePtr iface = NULL;
virNetworkDHCPLeasePtr *leases = NULL;
@@ -21653,7 +21638,6 @@ qemuGetDHCPInterfaces(virDomainPtr dom,
rv = ifaces_count;
cleanup:
- virObjectUnref(network);
if (leases) {
for (i = 0; i < n_leases; i++)
virNetworkDHCPLeaseFree(leases[i]);
@@ -22448,32 +22432,26 @@ qemuNodeGetSEVInfo(virConnectPtr conn,
unsigned int flags)
{
virQEMUDriverPtr driver = conn->privateData;
- virQEMUCapsPtr qemucaps = NULL;
- int ret = -1;
+ VIR_AUTOUNREF(virQEMUCapsPtr) qemucaps = NULL;
if (virNodeGetSevInfoEnsureACL(conn) < 0)
- return ret;
+ return -1;
qemucaps = virQEMUCapsCacheLookupByArch(driver->qemuCapsCache,
virArchFromHost());
if (!qemucaps)
- goto cleanup;
+ return -1;
if (!virQEMUCapsGet(qemucaps, QEMU_CAPS_SEV_GUEST)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("QEMU does not support SEV guest"));
- goto cleanup;
+ return -1;
}
if (qemuGetSEVInfoToParams(qemucaps, params, nparams, flags) < 0)
- goto cleanup;
-
- ret = 0;
-
- cleanup:
- virObjectUnref(qemucaps);
+ return -1;
- return ret;
+ return 0;
}
--
2.21.0
12:47 p.m.
New subject: [libvirt] [PATCH v2 6/9] qemu_driver: use VIR_AUTOFREE() with strings 1/3
Using VIR_AUTOFREE() in all strings of qemu_driver.c make the code
a bit tidier and smaller, sparing VIR_FREE() calls and sometimes a
whole 'cleanup' label.
This is a huge change due to the amount of char * declared in
this file, thus let's split it in 3. This is the first part.
Signed-off-by: Daniel Henrique Barboza <danielhb413(a)gmail.com>
---
src/qemu/qemu_driver.c | 103 +++++++++++++----------------------------
1 file changed, 33 insertions(+), 70 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 48eca00777..22c872e912 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -381,11 +381,9 @@ qemuDomainSnapshotLoad(virDomainObjPtr vm,
void *data)
{
char *baseDir = (char *)data;
- char *snapDir = NULL;
+ VIR_AUTOFREE(char *) snapDir = NULL;
DIR *dir = NULL;
struct dirent *entry;
- char *xmlStr;
- char *fullpath;
virDomainSnapshotDefPtr def = NULL;
virDomainMomentObjPtr snap = NULL;
virDomainMomentObjPtr current = NULL;
@@ -420,6 +418,9 @@ qemuDomainSnapshotLoad(virDomainObjPtr vm,
goto cleanup;
while ((direrr = virDirRead(dir, &entry, NULL)) > 0) {
+ VIR_AUTOFREE(char *) xmlStr = NULL;
+ VIR_AUTOFREE(char *) fullpath = NULL;
+
/* NB: ignoring errors, so one malformed config doesn't
kill the whole process */
VIR_INFO("Loading snapshot file '%s'", entry->d_name);
@@ -435,7 +436,6 @@ qemuDomainSnapshotLoad(virDomainObjPtr vm,
virReportSystemError(errno,
_("Failed to read snapshot file %s"),
fullpath);
- VIR_FREE(fullpath);
continue;
}
@@ -448,8 +448,6 @@ qemuDomainSnapshotLoad(virDomainObjPtr vm,
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to parse snapshot XML from file
'%s'"),
fullpath);
- VIR_FREE(fullpath);
- VIR_FREE(xmlStr);
continue;
}
@@ -463,9 +461,6 @@ qemuDomainSnapshotLoad(virDomainObjPtr vm,
vm->def->name);
current = snap;
}
-
- VIR_FREE(fullpath);
- VIR_FREE(xmlStr);
}
if (direrr < 0)
virReportError(VIR_ERR_INTERNAL_ERROR,
@@ -492,7 +487,6 @@ qemuDomainSnapshotLoad(virDomainObjPtr vm,
ret = 0;
cleanup:
VIR_DIR_CLOSE(dir);
- VIR_FREE(snapDir);
virObjectUnlock(vm);
return ret;
}
@@ -503,11 +497,9 @@ qemuDomainCheckpointLoad(virDomainObjPtr vm,
void *data)
{
char *baseDir = (char *)data;
- char *chkDir = NULL;
+ VIR_AUTOFREE(char *) chkDir = NULL;
DIR *dir = NULL;
struct dirent *entry;
- char *xmlStr;
- char *fullpath;
virDomainCheckpointDefPtr def = NULL;
virDomainMomentObjPtr chk = NULL;
virDomainMomentObjPtr current = NULL;
@@ -538,6 +530,9 @@ qemuDomainCheckpointLoad(virDomainObjPtr vm,
goto cleanup;
while ((direrr = virDirRead(dir, &entry, NULL)) > 0) {
+ VIR_AUTOFREE(char *) xmlStr = NULL;
+ VIR_AUTOFREE(char *) fullpath = NULL;
+
/* NB: ignoring errors, so one malformed config doesn't
kill the whole process */
VIR_INFO("Loading checkpoint file '%s'", entry->d_name);
@@ -553,7 +548,6 @@ qemuDomainCheckpointLoad(virDomainObjPtr vm,
virReportSystemError(errno,
_("Failed to read checkpoint file %s"),
fullpath);
- VIR_FREE(fullpath);
continue;
}
@@ -566,8 +560,6 @@ qemuDomainCheckpointLoad(virDomainObjPtr vm,
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to parse checkpoint XML from file
'%s'"),
fullpath);
- VIR_FREE(fullpath);
- VIR_FREE(xmlStr);
virObjectUnref(def);
continue;
}
@@ -575,9 +567,6 @@ qemuDomainCheckpointLoad(virDomainObjPtr vm,
chk = virDomainCheckpointAssignDef(vm->checkpoints, def);
if (chk == NULL)
virObjectUnref(def);
-
- VIR_FREE(fullpath);
- VIR_FREE(xmlStr);
}
if (direrr < 0)
virReportError(VIR_ERR_INTERNAL_ERROR,
@@ -602,7 +591,6 @@ qemuDomainCheckpointLoad(virDomainObjPtr vm,
ret = 0;
cleanup:
VIR_DIR_CLOSE(dir);
- VIR_FREE(chkDir);
virObjectUnlock(vm);
return ret;
}
@@ -660,12 +648,11 @@ qemuStateInitialize(bool privileged,
virStateInhibitCallback callback,
void *opaque)
{
- char *driverConf = NULL;
+ VIR_AUTOFREE(char *) driverConf = NULL;
virQEMUDriverConfigPtr cfg;
uid_t run_uid = -1;
gid_t run_gid = -1;
- char *hugepagePath = NULL;
- char *memoryBackingPath = NULL;
+ VIR_AUTOFREE(char *) memoryBackingPath = NULL;
size_t i;
if (VIR_ALLOC(qemu_driver) < 0)
@@ -705,7 +692,6 @@ qemuStateInitialize(bool privileged,
if (virQEMUDriverConfigLoadFile(cfg, driverConf, privileged) < 0)
goto error;
- VIR_FREE(driverConf);
if (virQEMUDriverConfigValidate(cfg) < 0)
goto error;
@@ -829,7 +815,7 @@ qemuStateInitialize(bool privileged,
goto error;
if (privileged) {
- char *channeldir;
+ VIR_AUTOFREE(char *) channeldir = NULL;
if (chown(cfg->libDir, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
@@ -882,10 +868,8 @@ qemuStateInitialize(bool privileged,
_("unable to set ownership of '%s' to
%d:%d"),
channeldir, (int)cfg->user,
(int)cfg->group);
- VIR_FREE(channeldir);
goto error;
}
- VIR_FREE(channeldir);
if (chown(cfg->channelTargetDir, cfg->user, cfg->group) < 0) {
virReportSystemError(errno,
_("unable to set ownership of '%s' to
%d:%d"),
@@ -936,6 +920,8 @@ qemuStateInitialize(bool privileged,
* it, since we can't assume the root mount point has permissions that
* will let our spawned QEMU instances use it. */
for (i = 0; i < cfg->nhugetlbfs; i++) {
+ VIR_AUTOFREE(char *) hugepagePath = NULL;
+
hugepagePath = qemuGetBaseHugepagePath(&cfg->hugetlbfs[i]);
if (!hugepagePath)
@@ -951,7 +937,6 @@ qemuStateInitialize(bool privileged,
virFileUpdatePerm(cfg->hugetlbfs[i].mnt_dir,
0, S_IXGRP | S_IXOTH) < 0)
goto error;
- VIR_FREE(hugepagePath);
}
if (qemuGetMemoryBackingBasePath(cfg, &memoryBackingPath) < 0)
@@ -968,7 +953,6 @@ qemuStateInitialize(bool privileged,
virFileUpdatePerm(memoryBackingPath,
0, S_IXGRP | S_IXOTH) < 0)
goto error;
- VIR_FREE(memoryBackingPath);
if (!(qemu_driver->closeCallbacks = virCloseCallbacksNew()))
goto error;
@@ -1033,9 +1017,6 @@ qemuStateInitialize(bool privileged,
return VIR_DRV_STATE_INIT_COMPLETE;
error:
- VIR_FREE(driverConf);
- VIR_FREE(hugepagePath);
- VIR_FREE(memoryBackingPath);
qemuStateCleanup();
return VIR_DRV_STATE_INIT_ERROR;
}
@@ -1360,8 +1341,8 @@ static int
qemuGetSchedInfo(unsigned long long *cpuWait,
pid_t pid, pid_t tid)
{
- char *proc = NULL;
- char *data = NULL;
+ VIR_AUTOFREE(char *) proc = NULL;
+ VIR_AUTOFREE(char *) data = NULL;
char **lines = NULL;
size_t i;
int ret = -1;
@@ -1425,8 +1406,6 @@ qemuGetSchedInfo(unsigned long long *cpuWait,
ret = 0;
cleanup:
- VIR_FREE(data);
- VIR_FREE(proc);
virStringListFree(lines);
return ret;
}
@@ -1436,7 +1415,7 @@ static int
qemuGetProcessInfo(unsigned long long *cpuTime, int *lastCpu, long *vm_rss,
pid_t pid, int tid)
{
- char *proc;
+ VIR_AUTOFREE(char *) proc = NULL;
FILE *pidinfo;
unsigned long long usertime = 0, systime = 0;
long rss = 0;
@@ -1453,7 +1432,6 @@ qemuGetProcessInfo(unsigned long long *cpuTime, int *lastCpu, long
*vm_rss,
return -1;
pidinfo = fopen(proc, "r");
- VIR_FREE(proc);
/* See 'man proc' for information about what all these fields are. We're
* only interested in a very few of them */
@@ -2905,9 +2883,8 @@ virQEMUSaveDataWrite(virQEMUSaveDataPtr data,
size_t len;
size_t xml_len;
size_t cookie_len = 0;
- int ret = -1;
size_t zerosLen = 0;
- char *zeros = NULL;
+ VIR_AUTOFREE(char *) zeros = NULL;
xml_len = strlen(data->xml) + 1;
if (data->cookie)
@@ -2919,12 +2896,12 @@ virQEMUSaveDataWrite(virQEMUSaveDataPtr data,
if (len > header->data_len) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("new xml too large to fit in file"));
- goto cleanup;
+ return -1;
}
zerosLen = header->data_len - len;
if (VIR_ALLOC_N(zeros, zerosLen) < 0)
- goto cleanup;
+ return -1;
} else {
header->data_len = len;
}
@@ -2936,14 +2913,14 @@ virQEMUSaveDataWrite(virQEMUSaveDataPtr data,
virReportSystemError(errno,
_("failed to write header to domain save file
'%s'"),
path);
- goto cleanup;
+ return -1;
}
if (safewrite(fd, data->xml, xml_len) != xml_len) {
virReportSystemError(errno,
_("failed to write domain xml to '%s'"),
path);
- goto cleanup;
+ return -1;
}
if (data->cookie &&
@@ -2951,21 +2928,17 @@ virQEMUSaveDataWrite(virQEMUSaveDataPtr data,
virReportSystemError(errno,
_("failed to write cookie to '%s'"),
path);
- goto cleanup;
+ return -1;
}
if (safewrite(fd, zeros, zerosLen) != zerosLen) {
virReportSystemError(errno,
_("failed to write padding to '%s'"),
path);
- goto cleanup;
+ return -1;
}
- ret = 0;
-
- cleanup:
- VIR_FREE(zeros);
- return ret;
+ return 0;
}
@@ -3295,7 +3268,7 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver,
int compressed, const char *compressedpath,
const char *xmlin, unsigned int flags)
{
- char *xml = NULL;
+ VIR_AUTOFREE(char *) xml = NULL;
bool was_running = false;
int ret = -1;
virObjectEventPtr event = NULL;
@@ -3376,7 +3349,6 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver,
if (!(data = virQEMUSaveDataNew(xml, cookie, was_running, compressed,
driver->xmlopt)))
goto endjob;
- xml = NULL;
ret = qemuDomainSaveMemory(driver, vm, path, data, compressedpath,
flags, QEMU_ASYNC_JOB_SAVE);
@@ -3411,7 +3383,6 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver,
qemuDomainRemoveInactiveJob(driver, vm);
cleanup:
- VIR_FREE(xml);
virQEMUSaveDataFree(data);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
@@ -3499,7 +3470,7 @@ qemuDomainSaveFlags(virDomainPtr dom, const char *path, const char
*dxml,
{
virQEMUDriverPtr driver = dom->conn->privateData;
int compressed;
- char *compressedpath = NULL;
+ VIR_AUTOFREE(char *) compressedpath = NULL;
int ret = -1;
virDomainObjPtr vm = NULL;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
@@ -3528,7 +3499,6 @@ qemuDomainSaveFlags(virDomainPtr dom, const char *path, const char
*dxml,
cleanup:
virDomainObjEndAPI(&vm);
- VIR_FREE(compressedpath);
return ret;
}
@@ -3556,9 +3526,9 @@ qemuDomainManagedSave(virDomainPtr dom, unsigned int flags)
virQEMUDriverPtr driver = dom->conn->privateData;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
int compressed;
- char *compressedpath = NULL;
+ VIR_AUTOFREE(char *) compressedpath = NULL;
virDomainObjPtr vm;
- char *name = NULL;
+ VIR_AUTOFREE(char *) name = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_SAVE_BYPASS_CACHE |
@@ -3598,8 +3568,6 @@ qemuDomainManagedSave(virDomainPtr dom, unsigned int flags)
cleanup:
virDomainObjEndAPI(&vm);
- VIR_FREE(name);
- VIR_FREE(compressedpath);
return ret;
}
@@ -3609,7 +3577,7 @@ qemuDomainManagedSaveLoad(virDomainObjPtr vm,
void *opaque)
{
virQEMUDriverPtr driver = opaque;
- char *name;
+ VIR_AUTOFREE(char *) name = NULL;
int ret = -1;
virObjectLock(vm);
@@ -3622,7 +3590,6 @@ qemuDomainManagedSaveLoad(virDomainObjPtr vm,
ret = 0;
cleanup:
virObjectUnlock(vm);
- VIR_FREE(name);
return ret;
}
@@ -3654,7 +3621,7 @@ qemuDomainManagedSaveRemove(virDomainPtr dom, unsigned int flags)
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
- char *name = NULL;
+ VIR_AUTOFREE(char *) name = NULL;
virCheckFlags(0, -1);
@@ -3678,7 +3645,6 @@ qemuDomainManagedSaveRemove(virDomainPtr dom, unsigned int flags)
ret = 0;
cleanup:
- VIR_FREE(name);
virDomainObjEndAPI(&vm);
return ret;
}
@@ -3798,7 +3764,7 @@ doCoreDump(virQEMUDriverPtr driver,
unsigned int flags = VIR_FILE_WRAPPER_NON_BLOCKING;
const char *memory_dump_format = NULL;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
- char *compressedpath = NULL;
+ VIR_AUTOFREE(char *) compressedpath = NULL;
/* We reuse "save" flag for "dump" here. Then, we can support the
same
* format in "save" and "dump". This path doesn't need the
compression
@@ -3878,7 +3844,6 @@ doCoreDump(virQEMUDriverPtr driver,
virFileWrapperFdFree(wrapperFd);
if (ret != 0)
unlink(path);
- VIR_FREE(compressedpath);
return ret;
}
@@ -4004,7 +3969,7 @@ qemuDomainScreenshot(virDomainPtr dom,
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv;
- char *tmp = NULL;
+ VIR_AUTOFREE(char *) tmp = NULL;
int tmp_fd = -1;
size_t i;
const char *videoAlias = NULL;
@@ -4096,7 +4061,6 @@ qemuDomainScreenshot(virDomainPtr dom,
VIR_FORCE_CLOSE(tmp_fd);
if (unlink_tmp)
unlink(tmp);
- VIR_FREE(tmp);
qemuDomainObjEndJob(driver, vm);
@@ -4110,7 +4074,7 @@ getAutoDumpPath(virQEMUDriverPtr driver,
virDomainObjPtr vm)
{
char *dumpfile = NULL;
- char *domname = virDomainDefGetShortName(vm->def);
+ VIR_AUTOFREE(char *domname) = virDomainDefGetShortName(vm->def);
char timestr[100];
struct tm time_info;
time_t curtime = time(NULL);
@@ -4129,7 +4093,6 @@ getAutoDumpPath(virQEMUDriverPtr driver,
domname,
timestr));
- VIR_FREE(domname);
return dumpfile;
}
--
2.21.0
12:48 p.m.
New subject: [libvirt] [PATCH v2 7/9] qemu_driver: use VIR_AUTOFREE() with strings 2/3
Using VIR_AUTOFREE() in all strings of qemu_driver.c make the code
a bit tidier and smaller, sparing VIR_FREE() calls and sometimes a
whole 'cleanup' label.
This is a huge change due to the amount of char * declared in
this file, thus let's split it in 3. This is the second part.
Signed-off-by: Daniel Henrique Barboza <danielhb413(a)gmail.com>
---
src/qemu/qemu_driver.c | 86 +++++++++++++++---------------------------
1 file changed, 30 insertions(+), 56 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 22c872e912..05736fbd26 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -4103,11 +4103,11 @@ processWatchdogEvent(virQEMUDriverPtr driver,
{
int ret;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
- char *dumpfile = getAutoDumpPath(driver, vm);
+ VIR_AUTOFREE(char *) dumpfile = getAutoDumpPath(driver, vm);
unsigned int flags = VIR_DUMP_MEMORY_ONLY;
if (!dumpfile)
- goto cleanup;
+ return;
switch (action) {
case VIR_DOMAIN_WATCHDOG_ACTION_DUMP:
@@ -4115,7 +4115,7 @@ processWatchdogEvent(virQEMUDriverPtr driver,
QEMU_ASYNC_JOB_DUMP,
VIR_DOMAIN_JOB_OPERATION_DUMP,
flags) < 0) {
- goto cleanup;
+ return;
}
if (virDomainObjCheckActive(vm) < 0)
@@ -4136,14 +4136,11 @@ processWatchdogEvent(virQEMUDriverPtr driver,
"%s", _("Resuming after dump failed"));
break;
default:
- goto cleanup;
+ return;
}
endjob:
qemuDomainObjEndAsyncJob(driver, vm);
-
- cleanup:
- VIR_FREE(dumpfile);
}
static int
@@ -4153,18 +4150,16 @@ doCoreDumpToAutoDumpPath(virQEMUDriverPtr driver,
{
int ret = -1;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
- char *dumpfile = getAutoDumpPath(driver, vm);
+ VIR_AUTOFREE(char *) dumpfile = getAutoDumpPath(driver, vm);
if (!dumpfile)
- goto cleanup;
+ return -1;
flags |= cfg->autoDumpBypassCache ? VIR_DUMP_BYPASS_CACHE: 0;
if ((ret = doCoreDump(driver, vm, dumpfile, flags,
VIR_DOMAIN_CORE_DUMP_FORMAT_RAW)) < 0)
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("Dump failed"));
- cleanup:
- VIR_FREE(dumpfile);
return ret;
}
@@ -4174,14 +4169,11 @@ qemuProcessGuestPanicEventInfo(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuMonitorEventPanicInfoPtr info)
{
- char *msg = qemuMonitorGuestPanicEventInfoFormatMsg(info);
- char *timestamp = virTimeStringNow();
+ VIR_AUTOFREE(char *) msg = qemuMonitorGuestPanicEventInfoFormatMsg(info);
+ VIR_AUTOFREE(char *) timestamp = virTimeStringNow();
if (msg && timestamp)
qemuDomainLogAppendMessage(driver, vm, "%s: panic %s\n", timestamp,
msg);
-
- VIR_FREE(timestamp);
- VIR_FREE(msg);
}
@@ -5077,7 +5069,7 @@ qemuDomainPinVcpuLive(virDomainObjPtr vm,
virDomainVcpuDefPtr vcpuinfo;
qemuDomainObjPrivatePtr priv = vm->privateData;
virCgroupPtr cgroup_vcpu = NULL;
- char *str = NULL;
+ VIR_AUTOFREE(char *) str = NULL;
virObjectEventPtr event = NULL;
char paramField[VIR_TYPED_PARAM_FIELD_LENGTH] = "";
virTypedParameterPtr eventParams = NULL;
@@ -5141,7 +5133,6 @@ qemuDomainPinVcpuLive(virDomainObjPtr vm,
cleanup:
virBitmapFree(tmpmap);
virCgroupFree(&cgroup_vcpu);
- VIR_FREE(str);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
}
@@ -5282,7 +5273,7 @@ qemuDomainPinEmulator(virDomainPtr dom,
virBitmapPtr pcpumap = NULL;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
virObjectEventPtr event = NULL;
- char *str = NULL;
+ VIR_AUTOFREE(char *) str = NULL;
virTypedParameterPtr eventParams = NULL;
int eventNparams = 0;
int eventMaxparams = 0;
@@ -5371,7 +5362,6 @@ qemuDomainPinEmulator(virDomainPtr dom,
if (cgroup_emulator)
virCgroupFree(&cgroup_emulator);
virObjectEventStateQueue(driver->domainEventState, event);
- VIR_FREE(str);
virBitmapFree(pcpumap);
virDomainObjEndAPI(&vm);
return ret;
@@ -5753,7 +5743,7 @@ qemuDomainPinIOThread(virDomainPtr dom,
virCgroupPtr cgroup_iothread = NULL;
virObjectEventPtr event = NULL;
char paramField[VIR_TYPED_PARAM_FIELD_LENGTH] = "";
- char *str = NULL;
+ VIR_AUTOFREE(char *) str = NULL;
virTypedParameterPtr eventParams = NULL;
int eventNparams = 0;
int eventMaxparams = 0;
@@ -5865,7 +5855,6 @@ qemuDomainPinIOThread(virDomainPtr dom,
if (cgroup_iothread)
virCgroupFree(&cgroup_iothread);
virObjectEventStateQueue(driver->domainEventState, event);
- VIR_FREE(str);
virBitmapFree(pcpumap);
virDomainObjEndAPI(&vm);
return ret;
@@ -5877,7 +5866,7 @@ qemuDomainHotplugAddIOThread(virQEMUDriverPtr driver,
unsigned int iothread_id)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
- char *alias = NULL;
+ VIR_AUTOFREE(char *) alias = NULL;
size_t idx;
int ret = -1;
unsigned int orig_niothreads = vm->def->niothreadids;
@@ -5953,7 +5942,6 @@ qemuDomainHotplugAddIOThread(virQEMUDriverPtr driver,
}
virDomainAuditIOThread(vm, orig_niothreads, new_niothreads,
"update", ret == 0);
- VIR_FREE(alias);
virJSONValueFree(props);
return ret;
@@ -5998,7 +5986,7 @@ qemuDomainHotplugDelIOThread(virQEMUDriverPtr driver,
{
qemuDomainObjPrivatePtr priv = vm->privateData;
size_t idx;
- char *alias = NULL;
+ VIR_AUTOFREE(char *) alias = NULL;
int rc = -1;
int ret = -1;
unsigned int orig_niothreads = vm->def->niothreadids;
@@ -6047,7 +6035,6 @@ qemuDomainHotplugDelIOThread(virQEMUDriverPtr driver,
}
virDomainAuditIOThread(vm, orig_niothreads, new_niothreads,
"update", rc == 0);
- VIR_FREE(alias);
return ret;
exit_monitor:
@@ -6817,7 +6804,7 @@ qemuDomainSaveImageStartVM(virConnectPtr conn,
virObjectEventPtr event;
int intermediatefd = -1;
virCommandPtr cmd = NULL;
- char *errbuf = NULL;
+ VIR_AUTOFREE(char *) errbuf = NULL;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
virQEMUSaveHeaderPtr header = &data->header;
VIR_AUTOUNREF(qemuDomainSaveCookiePtr) cookie = NULL;
@@ -6936,7 +6923,6 @@ qemuDomainSaveImageStartVM(virConnectPtr conn,
cleanup:
virCommandFree(cmd);
- VIR_FREE(errbuf);
if (qemuSecurityRestoreSavedStateLabel(driver, vm, path) < 0)
VIR_WARN("failed to restore save state label on %s", path);
return ret;
@@ -6952,7 +6938,7 @@ qemuDomainRestoreFlags(virConnectPtr conn,
qemuDomainObjPrivatePtr priv = NULL;
virDomainDefPtr def = NULL;
virDomainObjPtr vm = NULL;
- char *xmlout = NULL;
+ VIR_AUTOFREE(char *) xmlout = NULL;
const char *newxml = dxml;
int fd = -1;
int ret = -1;
@@ -7037,7 +7023,6 @@ qemuDomainRestoreFlags(virConnectPtr conn,
ret = -1;
virFileWrapperFdFree(wrapperFd);
virQEMUSaveDataFree(data);
- VIR_FREE(xmlout);
if (vm && ret < 0)
qemuDomainRemoveInactiveJob(driver, vm);
virDomainObjEndAPI(&vm);
@@ -7160,7 +7145,7 @@ qemuDomainManagedSaveGetXMLDesc(virDomainPtr dom, unsigned int
flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
- char *path = NULL;
+ VIR_AUTOFREE(char *) path = NULL;
char *ret = NULL;
virDomainDefPtr def = NULL;
int fd = -1;
@@ -7197,7 +7182,6 @@ qemuDomainManagedSaveGetXMLDesc(virDomainPtr dom, unsigned int
flags)
virDomainDefFree(def);
VIR_FORCE_CLOSE(fd);
virDomainObjEndAPI(&vm);
- VIR_FREE(path);
return ret;
}
@@ -7208,7 +7192,7 @@ qemuDomainManagedSaveDefineXML(virDomainPtr dom, const char *dxml,
virQEMUDriverPtr driver = dom->conn->privateData;
virConnectPtr conn = dom->conn;
virDomainObjPtr vm;
- char *path = NULL;
+ VIR_AUTOFREE(char *) path = NULL;
int ret = -1;
if (!(vm = qemuDomainObjFromDomain(dom)))
@@ -7230,7 +7214,6 @@ qemuDomainManagedSaveDefineXML(virDomainPtr dom, const char *dxml,
cleanup:
virDomainObjEndAPI(&vm);
- VIR_FREE(path);
return ret;
}
@@ -7249,7 +7232,7 @@ qemuDomainObjRestore(virConnectPtr conn,
qemuDomainObjPrivatePtr priv = vm->privateData;
int fd = -1;
int ret = -1;
- char *xmlout = NULL;
+ VIR_AUTOFREE(char *) xmlout = NULL;
virQEMUSaveDataPtr data = NULL;
virFileWrapperFdPtr wrapperFd = NULL;
@@ -7306,7 +7289,6 @@ qemuDomainObjRestore(virConnectPtr conn,
cleanup:
virQEMUSaveDataFree(data);
- VIR_FREE(xmlout);
virDomainDefFree(def);
VIR_FORCE_CLOSE(fd);
if (virFileWrapperFdClose(wrapperFd) < 0)
@@ -7471,7 +7453,7 @@ qemuDomainObjStart(virConnectPtr conn,
qemuDomainAsyncJob asyncJob)
{
int ret = -1;
- char *managed_save;
+ VIR_AUTOFREE(char *) managed_save = NULL;
bool start_paused = (flags & VIR_DOMAIN_START_PAUSED) != 0;
bool autodestroy = (flags & VIR_DOMAIN_START_AUTODESTROY) != 0;
bool bypass_cache = (flags & VIR_DOMAIN_START_BYPASS_CACHE) != 0;
@@ -7489,7 +7471,7 @@ qemuDomainObjStart(virConnectPtr conn,
managed_save = qemuDomainManagedSavePath(driver, vm);
if (!managed_save)
- goto cleanup;
+ return ret;
if (virFileExists(managed_save)) {
if (force_boot) {
@@ -7497,7 +7479,7 @@ qemuDomainObjStart(virConnectPtr conn,
virReportSystemError(errno,
_("cannot remove managed save file %s"),
managed_save);
- goto cleanup;
+ return ret;
}
vm->hasManagedSave = false;
} else {
@@ -7513,11 +7495,11 @@ qemuDomainObjStart(virConnectPtr conn,
else
vm->hasManagedSave = false;
- goto cleanup;
+ return ret;
} else if (ret < 0) {
VIR_WARN("Unable to restore from managed state %s. "
"Maybe the file is corrupted?", managed_save);
- goto cleanup;
+ return ret;
} else {
VIR_WARN("Ignoring incomplete managed state %s",
managed_save);
priv->job.current->operation = op;
@@ -7544,8 +7526,6 @@ qemuDomainObjStart(virConnectPtr conn,
}
}
- cleanup:
- VIR_FREE(managed_save);
return ret;
}
@@ -7693,7 +7673,7 @@ qemuDomainUndefineFlags(virDomainPtr dom,
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
virObjectEventPtr event = NULL;
- char *name = NULL;
+ VIR_AUTOFREE(char *) name = NULL;
int ret = -1;
int nsnapshots;
int ncheckpoints;
@@ -7814,7 +7794,6 @@ qemuDomainUndefineFlags(virDomainPtr dom,
qemuDomainObjEndJob(driver, vm);
cleanup:
- VIR_FREE(name);
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
@@ -9152,7 +9131,8 @@ static int qemuDomainSetAutostart(virDomainPtr dom,
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
- char *configFile = NULL, *autostartLink = NULL;
+ VIR_AUTOFREE(char *) configFile = NULL;
+ VIR_AUTOFREE(char *) autostartLink = NULL;
int ret = -1;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
@@ -9216,8 +9196,6 @@ static int qemuDomainSetAutostart(virDomainPtr dom,
ret = 0;
cleanup:
- VIR_FREE(configFile);
- VIR_FREE(autostartLink);
virDomainObjEndAPI(&vm);
return ret;
}
@@ -9997,7 +9975,7 @@ qemuDomainSetNumaParamsLive(virDomainObjPtr vm,
{
virCgroupPtr cgroup_temp = NULL;
qemuDomainObjPrivatePtr priv = vm->privateData;
- char *nodeset_str = NULL;
+ VIR_AUTOFREE(char *) nodeset_str = NULL;
virDomainNumatuneMemMode mode;
size_t i = 0;
int ret = -1;
@@ -10047,7 +10025,6 @@ qemuDomainSetNumaParamsLive(virDomainObjPtr vm,
ret = 0;
cleanup:
- VIR_FREE(nodeset_str);
virCgroupFree(&cgroup_temp);
return ret;
@@ -10190,7 +10167,7 @@ qemuDomainGetNumaParameters(virDomainPtr dom,
virDomainObjPtr vm = NULL;
virDomainNumatuneMemMode tmpmode = VIR_DOMAIN_NUMATUNE_MEM_STRICT;
qemuDomainObjPrivatePtr priv;
- char *nodeset = NULL;
+ VIR_AUTOFREE(char *) nodeset = NULL;
int ret = -1;
virDomainDefPtr def = NULL;
bool live = false;
@@ -10254,7 +10231,6 @@ qemuDomainGetNumaParameters(virDomainPtr dom,
ret = 0;
cleanup:
- VIR_FREE(nodeset);
virDomainObjEndAPI(&vm);
return ret;
}
@@ -11121,7 +11097,7 @@ qemuDomainBlockResize(virDomainPtr dom,
virDomainObjPtr vm;
qemuDomainObjPrivatePtr priv;
int ret = -1;
- char *device = NULL;
+ VIR_AUTOFREE(char *) device = NULL;
const char *nodename = NULL;
virDomainDiskDefPtr disk = NULL;
@@ -11193,7 +11169,6 @@ qemuDomainBlockResize(virDomainPtr dom,
qemuDomainObjEndJob(driver, vm);
cleanup:
- VIR_FREE(device);
virDomainObjEndAPI(&vm);
return ret;
}
@@ -11902,7 +11877,7 @@ qemuDomainBlockPeek(virDomainPtr dom,
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainDiskDefPtr disk = NULL;
virDomainObjPtr vm;
- char *tmpbuf = NULL;
+ VIR_AUTOFREE(char *) tmpbuf = NULL;
ssize_t nread;
int ret = -1;
@@ -11957,7 +11932,6 @@ qemuDomainBlockPeek(virDomainPtr dom,
if (disk)
virStorageFileDeinit(disk->src);
virDomainObjEndAPI(&vm);
- VIR_FREE(tmpbuf);
return ret;
}
--
2.21.0
12:48 p.m.
New subject: [libvirt] [PATCH v2 8/9] qemu_driver: use VIR_AUTOFREE() with strings 3/3
Using VIR_AUTOFREE() in all strings of qemu_driver.c make the code
a bit tidier and smaller, sparing VIR_FREE() calls and sometimes a
whole 'cleanup' label.
This is the last part of this change.
Signed-off-by: Daniel Henrique Barboza <danielhb413(a)gmail.com>
---
src/qemu/qemu_driver.c | 99 +++++++++++++++---------------------------
1 file changed, 34 insertions(+), 65 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 05736fbd26..aac952363e 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -11943,7 +11943,7 @@ qemuDomainMemoryPeek(virDomainPtr dom,
{
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
- char *tmp = NULL;
+ VIR_AUTOFREE(char *) tmp = NULL;
int fd = -1, ret = -1;
qemuDomainObjPrivatePtr priv;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = NULL;
@@ -12015,7 +12015,6 @@ qemuDomainMemoryPeek(virDomainPtr dom,
VIR_FORCE_CLOSE(fd);
if (tmp)
unlink(tmp);
- VIR_FREE(tmp);
virDomainObjEndAPI(&vm);
return ret;
}
@@ -12181,7 +12180,7 @@ qemuStorageLimitsRefresh(virQEMUDriverPtr driver,
int ret = -1;
int fd = -1;
struct stat sb;
- char *buf = NULL;
+ VIR_AUTOFREE(char *) buf = NULL;
ssize_t len;
if ((rc = qemuDomainStorageOpenStat(driver, cfg, vm, src, &fd, &sb,
@@ -12217,7 +12216,6 @@ qemuStorageLimitsRefresh(virQEMUDriverPtr driver,
ret = 1;
cleanup:
- VIR_FREE(buf);
qemuDomainStorageCloseStat(src, &fd);
return ret;
}
@@ -12438,7 +12436,7 @@ qemuDomainMigratePrepareTunnel(virConnectPtr dconn,
{
virQEMUDriverPtr driver = dconn->privateData;
virDomainDefPtr def = NULL;
- char *origname = NULL;
+ VIR_AUTOFREE(char *) origname = NULL;
qemuMigrationParamsPtr migParams = NULL;
int ret = -1;
@@ -12473,7 +12471,6 @@ qemuDomainMigratePrepareTunnel(virConnectPtr dconn,
cleanup:
qemuMigrationParamsFree(migParams);
- VIR_FREE(origname);
virDomainDefFree(def);
return ret;
}
@@ -12495,7 +12492,7 @@ qemuDomainMigratePrepare2(virConnectPtr dconn,
{
virQEMUDriverPtr driver = dconn->privateData;
virDomainDefPtr def = NULL;
- char *origname = NULL;
+ VIR_AUTOFREE(char *) origname = NULL;
qemuMigrationParamsPtr migParams = NULL;
int ret = -1;
@@ -12540,7 +12537,6 @@ qemuDomainMigratePrepare2(virConnectPtr dconn,
cleanup:
qemuMigrationParamsFree(migParams);
- VIR_FREE(origname);
virDomainDefFree(def);
return ret;
}
@@ -12741,7 +12737,7 @@ qemuDomainMigratePrepare3(virConnectPtr dconn,
{
virQEMUDriverPtr driver = dconn->privateData;
virDomainDefPtr def = NULL;
- char *origname = NULL;
+ VIR_AUTOFREE(char *) origname = NULL;
qemuMigrationParamsPtr migParams = NULL;
int ret = -1;
@@ -12776,7 +12772,6 @@ qemuDomainMigratePrepare3(virConnectPtr dconn,
cleanup:
qemuMigrationParamsFree(migParams);
- VIR_FREE(origname);
virDomainDefFree(def);
return ret;
}
@@ -12802,7 +12797,7 @@ qemuDomainMigratePrepare3Params(virConnectPtr dconn,
int nbdPort = 0;
int nmigrate_disks;
const char **migrate_disks = NULL;
- char *origname = NULL;
+ VIR_AUTOFREE(char *) origname = NULL;
qemuMigrationParamsPtr migParams = NULL;
int ret = -1;
@@ -12865,7 +12860,6 @@ qemuDomainMigratePrepare3Params(virConnectPtr dconn,
cleanup:
qemuMigrationParamsFree(migParams);
VIR_FREE(migrate_disks);
- VIR_FREE(origname);
virDomainDefFree(def);
return ret;
}
@@ -12885,7 +12879,7 @@ qemuDomainMigratePrepareTunnel3(virConnectPtr dconn,
{
virQEMUDriverPtr driver = dconn->privateData;
virDomainDefPtr def = NULL;
- char *origname = NULL;
+ VIR_AUTOFREE(char *) origname = NULL;
qemuMigrationParamsPtr migParams = NULL;
int ret = -1;
@@ -12914,7 +12908,6 @@ qemuDomainMigratePrepareTunnel3(virConnectPtr dconn,
cleanup:
qemuMigrationParamsFree(migParams);
- VIR_FREE(origname);
virDomainDefFree(def);
return ret;
}
@@ -12934,7 +12927,7 @@ qemuDomainMigratePrepareTunnel3Params(virConnectPtr dconn,
virDomainDefPtr def = NULL;
const char *dom_xml = NULL;
const char *dname = NULL;
- char *origname = NULL;
+ VIR_AUTOFREE(char *) origname = NULL;
qemuMigrationParamsPtr migParams = NULL;
int ret = -1;
@@ -12973,7 +12966,6 @@ qemuDomainMigratePrepareTunnel3Params(virConnectPtr dconn,
cleanup:
qemuMigrationParamsFree(migParams);
- VIR_FREE(origname);
virDomainDefFree(def);
return ret;
}
@@ -13295,7 +13287,7 @@ qemuNodeDeviceDetachFlags(virNodeDevicePtr dev,
unsigned domain = 0, bus = 0, slot = 0, function = 0;
int ret = -1;
virNodeDeviceDefPtr def = NULL;
- char *xml = NULL;
+ VIR_AUTOFREE(char *) xml = NULL;
bool vfio = qemuHostdevHostSupportsPassthroughVFIO();
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
@@ -13345,7 +13337,6 @@ qemuNodeDeviceDetachFlags(virNodeDevicePtr dev,
cleanup:
virPCIDeviceFree(pci);
virNodeDeviceDefFree(def);
- VIR_FREE(xml);
return ret;
}
@@ -13363,7 +13354,7 @@ qemuNodeDeviceReAttach(virNodeDevicePtr dev)
unsigned domain = 0, bus = 0, slot = 0, function = 0;
int ret = -1;
virNodeDeviceDefPtr def = NULL;
- char *xml = NULL;
+ VIR_AUTOFREE(char *) xml = NULL;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
xml = virNodeDeviceGetXMLDesc(dev, 0);
@@ -13389,7 +13380,6 @@ qemuNodeDeviceReAttach(virNodeDevicePtr dev)
virPCIDeviceFree(pci);
cleanup:
virNodeDeviceDefFree(def);
- VIR_FREE(xml);
return ret;
}
@@ -13401,7 +13391,7 @@ qemuNodeDeviceReset(virNodeDevicePtr dev)
unsigned domain = 0, bus = 0, slot = 0, function = 0;
int ret = -1;
virNodeDeviceDefPtr def = NULL;
- char *xml = NULL;
+ VIR_AUTOFREE(char *) xml = NULL;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
xml = virNodeDeviceGetXMLDesc(dev, 0);
@@ -13427,7 +13417,6 @@ qemuNodeDeviceReset(virNodeDevicePtr dev)
virPCIDeviceFree(pci);
cleanup:
virNodeDeviceDefFree(def);
- VIR_FREE(xml);
return ret;
}
@@ -15108,7 +15097,6 @@ qemuDomainSnapshotDiskPrepareOne(virQEMUDriverPtr driver,
qemuDomainAsyncJob asyncJob)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
- char *backingStoreStr;
virDomainDiskDefPtr persistdisk;
VIR_AUTOUNREF(virStorageSourcePtr) terminator = NULL;
bool supportsCreate;
@@ -15154,13 +15142,13 @@ qemuDomainSnapshotDiskPrepareOne(virQEMUDriverPtr driver,
* block commit still works */
if (reuse) {
if (supportsBacking) {
+ VIR_AUTOFREE(char *) backingStoreStr = NULL;
+
if (virStorageFileGetBackingStoreStr(dd->src, &backingStoreStr)
< 0)
return -1;
if (backingStoreStr != NULL) {
if (virStorageIsRelative(backingStoreStr))
VIR_STEAL_PTR(dd->relPath, backingStoreStr);
- else
- VIR_FREE(backingStoreStr);
}
}
} else {
@@ -15607,7 +15595,7 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain,
{
virQEMUDriverPtr driver = domain->conn->privateData;
virDomainObjPtr vm = NULL;
- char *xml = NULL;
+ VIR_AUTOFREE(char *) xml = NULL;
virDomainMomentObjPtr snap = NULL;
virDomainSnapshotPtr snapshot = NULL;
virDomainMomentObjPtr current = NULL;
@@ -15895,7 +15883,6 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain,
cleanup:
virDomainObjEndAPI(&vm);
- VIR_FREE(xml);
return snapshot;
}
@@ -17694,7 +17681,7 @@ qemuDomainBlockJobSetSpeed(virDomainPtr dom,
virDomainDiskDefPtr disk;
int ret = -1;
virDomainObjPtr vm;
- char *device = NULL;
+ VIR_AUTOFREE(char *) device = NULL;
unsigned long long speed = bandwidth;
virCheckFlags(VIR_DOMAIN_BLOCK_JOB_SPEED_BANDWIDTH_BYTES, -1);
@@ -17739,7 +17726,6 @@ qemuDomainBlockJobSetSpeed(virDomainPtr dom,
qemuDomainObjEndJob(driver, vm);
cleanup:
- VIR_FREE(device);
virDomainObjEndAPI(&vm);
return ret;
@@ -18819,7 +18805,7 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
virDomainDefPtr def = NULL;
virDomainDefPtr persistentDef = NULL;
virDomainBlockIoTuneInfo info;
- char *drivealias = NULL;
+ VIR_AUTOFREE(char *) drivealias = NULL;
const char *qdevid = NULL;
int ret = -1;
size_t i;
@@ -19146,7 +19132,6 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
cleanup:
VIR_FREE(info.group_name);
- VIR_FREE(drivealias);
virDomainObjEndAPI(&vm);
if (eventNparams)
virTypedParamsFree(eventParams, eventNparams);
@@ -19167,7 +19152,7 @@ qemuDomainGetBlockIoTune(virDomainPtr dom,
virDomainDefPtr def = NULL;
virDomainDefPtr persistentDef = NULL;
virDomainBlockIoTuneInfo reply = {0};
- char *drivealias = NULL;
+ VIR_AUTOFREE(char *) drivealias = NULL;
const char *qdevid = NULL;
int ret = -1;
int maxparams;
@@ -19304,7 +19289,6 @@ qemuDomainGetBlockIoTune(virDomainPtr dom,
cleanup:
VIR_FREE(reply.group_name);
- VIR_FREE(drivealias);
virDomainObjEndAPI(&vm);
return ret;
}
@@ -20928,12 +20912,10 @@ qemuDomainGetStatsBlockExportDisk(virDomainDiskDefPtr disk,
bool blockdev)
{
- char *alias = NULL;
virStorageSourcePtr n;
const char *frontendalias;
const char *backendalias;
const char *backendstoragealias;
- int ret = -1;
/*
* This helps to keep logs clean from error messages on getting stats
@@ -20950,6 +20932,8 @@ qemuDomainGetStatsBlockExportDisk(virDomainDiskDefPtr disk,
}
for (n = disk->src; virStorageSourceIsBacking(n); n = n->backingStore) {
+ VIR_AUTOFREE(char *) alias = NULL;
+
if (blockdev) {
frontendalias = QEMU_DOMAIN_DISK_PRIVATE(disk)->qomName;
backendalias = n->nodeformat;
@@ -20958,7 +20942,7 @@ qemuDomainGetStatsBlockExportDisk(virDomainDiskDefPtr disk,
/* alias may be NULL if the VM is not running */
if (disk->info.alias &&
!(alias = qemuDomainStorageAlias(disk->info.alias, n->id)))
- goto cleanup;
+ return -1;
qemuDomainGetStatsOneBlockRefreshNamed(n, alias, stats, nodestats);
@@ -20968,37 +20952,32 @@ qemuDomainGetStatsBlockExportDisk(virDomainDiskDefPtr disk,
}
if (qemuDomainGetStatsBlockExportHeader(disk, n, *recordnr, params) < 0)
- goto cleanup;
+ return -1;
/* The following stats make sense only for the frontend device */
if (n == disk->src) {
if (qemuDomainGetStatsBlockExportFrontend(frontendalias, stats, *recordnr,
params) < 0)
- goto cleanup;
+ return -1;
}
if (qemuDomainGetStatsOneBlock(driver, cfg, dom, params,
backendalias, n, *recordnr,
stats) < 0)
- goto cleanup;
+ return -1;
if (qemuDomainGetStatsBlockExportBackendStorage(backendstoragealias,
stats, *recordnr,
params) < 0)
- goto cleanup;
+ return -1;
- VIR_FREE(alias);
(*recordnr)++;
if (!visitBacking)
break;
}
- ret = 0;
-
- cleanup:
- VIR_FREE(alias);
- return ret;
+ return 0;
}
@@ -21714,12 +21693,12 @@ qemuDomainRenameCallback(virDomainObjPtr vm,
virObjectEventPtr event_new = NULL;
virObjectEventPtr event_old = NULL;
int ret = -1;
- char *new_dom_name = NULL;
- char *old_dom_name = NULL;
- char *new_dom_cfg_file = NULL;
- char *old_dom_cfg_file = NULL;
- char *new_dom_autostart_link = NULL;
- char *old_dom_autostart_link = NULL;
+ VIR_AUTOFREE(char *) new_dom_name = NULL;
+ VIR_AUTOFREE(char *) old_dom_name = NULL;
+ VIR_AUTOFREE(char *) new_dom_cfg_file = NULL;
+ VIR_AUTOFREE(char *) old_dom_cfg_file = NULL;
+ VIR_AUTOFREE(char *) new_dom_autostart_link = NULL;
+ VIR_AUTOFREE(char *) old_dom_autostart_link = NULL;
virCheckFlags(0, ret);
@@ -21791,12 +21770,6 @@ qemuDomainRenameCallback(virDomainObjPtr vm,
ret = 0;
cleanup:
- VIR_FREE(old_dom_autostart_link);
- VIR_FREE(new_dom_autostart_link);
- VIR_FREE(old_dom_cfg_file);
- VIR_FREE(new_dom_cfg_file);
- VIR_FREE(old_dom_name);
- VIR_FREE(new_dom_name);
virObjectEventStateQueue(driver->domainEventState, event_old);
virObjectEventStateQueue(driver->domainEventState, event_new);
return ret;
@@ -21901,7 +21874,7 @@ qemuDomainGetGuestVcpusParams(virTypedParameterPtr *params,
virBitmapPtr vcpus = NULL;
virBitmapPtr online = NULL;
virBitmapPtr offlinable = NULL;
- char *tmp = NULL;
+ VIR_AUTOFREE(char *) tmp = NULL;
size_t i;
int ret = -1;
@@ -21930,7 +21903,6 @@ qemuDomainGetGuestVcpusParams(virTypedParameterPtr *params,
goto cleanup; \
if (virTypedParamsAddString(&par, &npar, &maxpar, #name, tmp) < 0) \
goto cleanup; \
- VIR_FREE(tmp)
ADD_BITMAP(vcpus);
ADD_BITMAP(online);
@@ -21944,7 +21916,6 @@ qemuDomainGetGuestVcpusParams(virTypedParameterPtr *params,
ret = 0;
cleanup:
- VIR_FREE(tmp);
virBitmapFree(vcpus);
virBitmapFree(online);
virBitmapFree(offlinable);
@@ -22172,7 +22143,7 @@ qemuDomainSetBlockThreshold(virDomainPtr dom,
qemuDomainObjPrivatePtr priv;
virDomainObjPtr vm = NULL;
virStorageSourcePtr src;
- char *nodename = NULL;
+ VIR_AUTOFREE(char *) nodename = NULL;
int rc;
int ret = -1;
@@ -22226,7 +22197,6 @@ qemuDomainSetBlockThreshold(virDomainPtr dom,
qemuDomainObjEndJob(driver, vm);
cleanup:
- VIR_FREE(nodename);
virDomainObjEndAPI(&vm);
return ret;
}
@@ -22400,7 +22370,7 @@ qemuDomainGetSEVMeasurement(virQEMUDriverPtr driver,
unsigned int flags)
{
int ret = -1;
- char *tmp = NULL;
+ VIR_AUTOFREE(char *) tmp = NULL;
int maxpar = 0;
virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1);
@@ -22425,7 +22395,6 @@ qemuDomainGetSEVMeasurement(virQEMUDriverPtr driver,
ret = 0;
endjob:
- VIR_FREE(tmp);
qemuDomainObjEndJob(driver, vm);
return ret;
}
--
2.21.0
12:48 p.m.
New subject: [libvirt] [PATCH v2 9/9] qemu_driver: VIR_AUTOFREE on other scalar pointers
This patch uses VIR_AUTOFREE on instances of 'unsigned int *'
and 'unsigned long long *' found in qemu_driver.c.
Suggested-by: Erik Skultety <eskultet(a)redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413(a)gmail.com>
---
src/qemu/qemu_driver.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index aac952363e..4940fb083b 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -1077,7 +1077,7 @@ qemuStateStop(void)
size_t i;
int state;
virDomainPtr *domains = NULL;
- unsigned int *flags = NULL;
+ VIR_AUTOFREE(unsigned int *) flags = NULL;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(qemu_driver);
if (!(conn = virConnectOpen(cfg->uri)))
@@ -1115,7 +1115,6 @@ qemuStateStop(void)
virObjectUnref(domains[i]);
VIR_FREE(domains);
}
- VIR_FREE(flags);
return ret;
}
@@ -20565,7 +20564,7 @@ qemuDomainGetStatsVcpu(virQEMUDriverPtr driver,
size_t i;
int ret = -1;
virVcpuInfoPtr cpuinfo = NULL;
- unsigned long long *cpuwait = NULL;
+ VIR_AUTOFREE(unsigned long long *) cpuwait = NULL;
if (virTypedParamListAddUInt(params, virDomainDefGetVcpus(dom->def),
"vcpu.current") < 0)
@@ -20630,7 +20629,6 @@ qemuDomainGetStatsVcpu(virQEMUDriverPtr driver,
cleanup:
VIR_FREE(cpuinfo);
- VIR_FREE(cpuwait);
return ret;
}
--
2.21.0
1880
days inactive
1880
days old
9 comments
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participants (1)
-
Daniel Henrique Barboza