filesystems/fastfat/read.c

558     ULONG ByteCount;  local
625     ByteCount = IrpSp->Parameters.Read.Length;
626     RequestedByteCount = ByteCount;
632     if (ByteCount == 0) {
664         CollectReadStats(Vcb, TypeOfOpen, ByteCount);
722                 ByteCount;
816                 if (ByteCount > VolumeSize - StartingLbo) {
818                     ByteCount = RequestedByteCount = (ULONG) (VolumeSize - StartingLbo);
828                             ByteCount;
837             FatLockUserBuffer( IrpContext, Irp, IoWriteAccess, ByteCount );
857                         ByteCount,
871                                   ByteCount,
984                               ByteCount,
1129             if (ByteCount > FileSize - StartingVbo) {
1131                 ByteCount = RequestedByteCount = FileSize - StartingVbo;
1168                 if ( StartingVbo + ByteCount > ValidDataLength ) {
1197                         if (ByteCount > ZeroingOffset) {
1200                                             ByteCount - ZeroingOffset);
1211                         SafeZeroMemory( (PUCHAR)SystemBuffer, ByteCount );
1213                         Irp->IoStatus.Information = ByteCount;
1226                 ByteCount = (ValidDataLength - StartingVbo < ByteCount) ?
1227                              ValidDataLength - StartingVbo : ByteCount;
1234                 BytesToRead = (ByteCount + (SectorSize - 1))
1278                                                 ByteCount );
1287                     BytesToRead = ByteCount;
1301                                         ByteCount,
1411                                        ByteCount,
1419                                      ByteCount,
1450                                ByteCount,
1499             NT_ASSERT( ((StartingVbo | ByteCount) & (SectorSize - 1)) == 0 );
1515                 if ( StartingVbo + ByteCount > FcbOrDcb->Header.AllocationSize.LowPart ) {
1518                     ByteCount = FcbOrDcb->Header.AllocationSize.LowPart - StartingVbo;
1530                                 ByteCount,
1531                                 ByteCount,
1552                 NT_ASSERT( Irp->IoStatus.Information == ByteCount );