[pschweitzer] 72024: [BTRFS] Import three fixes from my local GitHub repository: - Don't attempt to remove Vcb from list twice on shutdown - Properly add CCB to root_file - Init cache for root_file...

Author: pschweitzer
Date: Wed Jul 27 19:32:05 2016
New Revision: 72024

URL: http://svn.reactos.org/svn/reactos?rev=72024&view=rev
Log:
[BTRFS]
Import three fixes from my local GitHub repository:
- Don't attempt to remove Vcb from list twice on shutdown
- Properly add CCB to root_file
- Init cache for root_file so that cache uninit on shutdown isn't problematic

This fixes BTRFS in ReactOS.
These fixes have already been submitted upstream (https://github.com/maharmstone/btrfs/pull/23).

CORE-11674

Modified:
    trunk/reactos/drivers/filesystems/btrfs/btrfs.c

Modified: trunk/reactos/drivers/filesystems/btrfs/btrfs.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/btrfs/b...
==============================================================================
--- trunk/reactos/drivers/filesystems/btrfs/btrfs.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/btrfs/btrfs.c	[iso-8859-1] Wed Jul 27 19:32:05 2016
@@ -1935,7 +1935,9 @@
     LIST_ENTRY* le;
     LARGE_INTEGER time;

+#ifndef __REACTOS__
     RemoveEntryList(&Vcb->list_entry);
+#endif

Status = registry_mark_volume_unmounted(&Vcb->superblock.uuid);
     if (!NT_SUCCESS(Status))
@@ -3762,12 +3764,27 @@

Vcb->root_file = IoCreateStreamFileObject(NULL, DeviceToMount);
     Vcb->root_file->FsContext = root_fcb;
+#ifdef __REACTOS__
+    Vcb->root_file->SectionObjectPointer = &root_fcb->nonpaged->segment_object;
+    Vcb->root_file->Vpb = DeviceObject->Vpb;
+#endif

RtlZeroMemory(root_ccb, sizeof(ccb));
     root_ccb->NodeType = BTRFS_NODE_TYPE_CCB;
     root_ccb->NodeSize = sizeof(ccb);

+#ifndef __REACTOS__
     Vcb->root_file->FsContext = root_ccb;
+#else
+    Vcb->root_file->FsContext2 = root_ccb;
+    
+    _SEH2_TRY {
+        CcInitializeCacheMap(Vcb->root_file, (PCC_FILE_SIZES)(&root_fcb->Header.AllocationSize), FALSE, cache_callbacks, Vcb->root_file);
+    } _SEH2_EXCEPT (EXCEPTION_EXECUTE_HANDLER) {
+        Status = _SEH2_GetExceptionCode();
+        goto exit;
+    } _SEH2_END;
+#endif

for (i = 0; i < Vcb->superblock.num_devices; i++) {
         Status = find_disk_holes(Vcb, &Vcb->devices[i]);