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nwfilter_gentech: Use automatic mutex management

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Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Tim Wiederhake 2022-03-07 17:45:05 +01:00
parent 68523b2605
commit 398745c3b3
1 changed files with 11 additions and 22 deletions
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33
src/nwfilter/nwfilter_gentech_driver.c
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@ -744,9 +744,7 @@ virNWFilterInstantiateFilterInternal(virNWFilterDriverState *driver,
bool *foundNewFilter)
{
int ifindex;
int rc;
virMutexLock(&updateMutex);
VIR_LOCK_GUARD lock = virLockGuardLock(&updateMutex);
/* after grabbing the filter update lock check for the interface; if
it's not there anymore its filters will be or are being removed
@ -756,20 +754,14 @@ virNWFilterInstantiateFilterInternal(virNWFilterDriverState *driver,
/* interfaces / VMs can disappear during filter instantiation;
don't mark it as an error */
virResetLastError();
rc = 0;
goto cleanup;
return 0;
}
rc = virNWFilterInstantiateFilterUpdate(driver, teardownOld,
binding,
ifindex,
useNewFilter,
false, foundNewFilter);
cleanup:
virMutexUnlock(&updateMutex);
return rc;
return virNWFilterInstantiateFilterUpdate(driver, teardownOld,
binding,
ifindex,
useNewFilter,
false, foundNewFilter);
}
@ -780,9 +772,9 @@ virNWFilterInstantiateFilterLate(virNWFilterDriverState *driver,
{
int rc;
bool foundNewFilter = false;
VIR_LOCK_GUARD lock = virLockGuardLock(&updateMutex);
virNWFilterReadLockFilterUpdates();
virMutexLock(&updateMutex);
rc = virNWFilterInstantiateFilterUpdate(driver, true,
binding, ifindex,
@ -799,7 +791,6 @@ virNWFilterInstantiateFilterLate(virNWFilterDriverState *driver,
}
virNWFilterUnlockFilterUpdates();
virMutexUnlock(&updateMutex);
return rc;
}
@ -921,11 +912,9 @@ _virNWFilterTeardownFilter(const char *ifname)
int
virNWFilterTeardownFilter(virNWFilterBindingDef *binding)
{
int ret;
virMutexLock(&updateMutex);
ret = _virNWFilterTeardownFilter(binding->portdevname);
virMutexUnlock(&updateMutex);
return ret;
VIR_LOCK_GUARD lock = virLockGuardLock(&updateMutex);
return _virNWFilterTeardownFilter(binding->portdevname);
}
enum {