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[NFS]

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Huge "hack" for ReactOS.
In case we're asked to unmount a NFS share, and there are still active FCBs, browse the prefix table for active NET_ROOT, and then, dump their associated FCBs (prefix + refcount).
It seems we only leak the root FCB.

CORE-8204
CORE-11327
CORE-13581

svn path=/trunk/; revision=75415
This commit is contained in:
Pierre Schweitzer 2017-07-26 20:00:30 +00:00
parent bf93adc414
commit 564e7818da
1 changed files with 86 additions and 0 deletions
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86
reactos/drivers/filesystems/nfs/nfs41_driver.c
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@ -2375,6 +2375,92 @@ NTSTATUS nfs41_DevFcbXXXControlFile(
if (RxContext->RxDeviceObject->NumberOfActiveFcbs > 0) { if (RxContext->RxDeviceObject->NumberOfActiveFcbs > 0) {
DbgP("device has open handles %d\n", DbgP("device has open handles %d\n",
RxContext->RxDeviceObject->NumberOfActiveFcbs); RxContext->RxDeviceObject->NumberOfActiveFcbs);
#ifdef __REACTOS__
if (RxContext->RxDeviceObject->pRxNetNameTable != NULL)
{
#define DUMP_FCB_TABLE_FROM_NETROOT(N) \
{ \
USHORT Bucket2; \
BOOLEAN Release2 = FALSE; \
if (!RxIsFcbTableLockAcquired(&(N)->FcbTable)) \
{ \
RxAcquireFcbTableLockExclusive(&(N)->FcbTable, TRUE); \
Release2 = TRUE; \
} \
for (Bucket2 = 0; Bucket2 < (N)->FcbTable.NumberOfBuckets; ++Bucket2) \
{ \
PLIST_ENTRY Entry2; \
for (Entry2 = (N)->FcbTable.HashBuckets[Bucket2].Flink; \
Entry2 != &(N)->FcbTable.HashBuckets[Bucket2]; \
Entry2 = Entry2->Flink) \
{ \
PFCB Fcb; \
Fcb = CONTAINING_RECORD(Entry2, FCB, FcbTableEntry.HashLinks); \
DbgP("Fcb: %p still has %d references\n", Fcb, Fcb->NodeReferenceCount); \
DbgP("It is for: %wZ\n", &Fcb->FcbTableEntry.Path); \
} \
} \
if (Release2) \
{ \
RxReleaseFcbTableLock(&(N)->FcbTable); \
} \
}
USHORT Bucket;
BOOLEAN Release = FALSE;
if (!RxIsPrefixTableLockAcquired(RxContext->RxDeviceObject->pRxNetNameTable))
{
RxAcquirePrefixTableLockExclusive(RxContext->RxDeviceObject->pRxNetNameTable, TRUE);
Release = TRUE;
}
for (Bucket = 0; Bucket < RxContext->RxDeviceObject->pRxNetNameTable->TableSize; ++Bucket)
{
PLIST_ENTRY Entry;
for (Entry = RxContext->RxDeviceObject->pRxNetNameTable->HashBuckets[Bucket].Flink;
Entry != &RxContext->RxDeviceObject->pRxNetNameTable->HashBuckets[Bucket];
Entry = Entry->Flink)
{
PVOID Container;
Container = CONTAINING_RECORD(Entry, RX_PREFIX_ENTRY, HashLinks)->ContainingRecord;
switch (NodeType(Container) & ~RX_SCAVENGER_MASK)
{
case RDBSS_NTC_NETROOT:
{
PNET_ROOT NetRoot;
NetRoot = Container;
DUMP_FCB_TABLE_FROM_NETROOT(NetRoot);
break;
}
case RDBSS_NTC_V_NETROOT:
{
PV_NET_ROOT VNetRoot;
VNetRoot = Container;
if (VNetRoot->NetRoot != NULL)
{
PNET_ROOT NetRoot;
NetRoot = VNetRoot->NetRoot;
DUMP_FCB_TABLE_FROM_NETROOT(NetRoot);
}
break;
}
}
}
}
if (Release)
{
RxReleasePrefixTableLock(RxContext->RxDeviceObject->pRxNetNameTable);
}
#undef DUMP_FCB_TABLE_FROM_NETROOT
}
#endif
status = STATUS_REDIRECTOR_HAS_OPEN_HANDLES; status = STATUS_REDIRECTOR_HAS_OPEN_HANDLES;
break; break;
} }