FIXME: possible extent overlapping issue (ever happened with ReactOS)

1 files changed, 5 insertions, 2 deletions

diff --git a/Ext3Fsd/write.c b/Ext3Fsd/write.c
index f3331ce..f2528d4 100644
--- a/Ext3Fsd/write.c
+++ b/Ext3Fsd/write.c
@@ -491,7 +491,7 @@ Ext2WriteVolume (IN PEXT2_IRP_CONTEXT IrpContext)
                     }
 
                     Extent->Irp = NULL;
-                    Extent->Lba = DirtyLba;
+                    Extent->Lba = DirtyStart;
                     Extent->Offset = (ULONG)( DirtyStart + Length -
                                               RemainLength - DirtyLba );
                     ASSERT(Extent->Offset <= Length);
@@ -504,14 +504,17 @@ Ext2WriteVolume (IN PEXT2_IRP_CONTEXT IrpContext)
                         RemainLength = 0;
                     } else {
                         Extent->Length = (ULONG)(DirtyLength + DirtyLba - DirtyStart);
+                        RemainLength = RemainLength - Extent->Length;
+/*
                         RemainLength =  (DirtyStart + RemainLength) -
                                         (DirtyLba + DirtyLength);
+*/
                         ASSERT(RemainLength <= (LONGLONG)Length);
                         ASSERT(Extent->Length <= Length);
                     }
 
                     ASSERT(Extent->Length >= SECTOR_SIZE);
-                    DirtyLba = DirtyStart + DirtyLength;
+                    DirtyLba = DirtyStart + Extent->Length;
 
                     if (List) {
                         List->Next = Extent;