* Apparently, a drive's size is not always reported the same; at least I have

a drive (which had its MBR created on Linux) report a smaller size than the
  size of its first partition.
* Since other operating systems seem to ignore this, we now relax our validity
  checks and always adjust the size of a child partition to fit into its parent.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34381 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/partitioning_systems/intel/Jamfile

@@ -11,18 +11,3 @@ KernelAddon intel :
 	PartitionMapWriter.cpp
 	write_support.cpp
 ;
-
-# Also build a userland version
-# ToDo: it's probably not a good idea to build them into the same directory
-#Addon <partitioning_system>intel :
-#	intel.cpp
-#	PartitionLocker.cpp
-#	PartitionMap.cpp
-#	PartitionMapParser.cpp
-#	PartitionMapWriter.cpp
-#;
-
-#LinkAgainst <partitioning_system>intel :
-#	libkernelland_emu.so
-#	libdisk_device_manager.so
-#;

src/add-ons/kernel/partitioning_systems/intel/PartitionMap.cpp

@@ -6,11 +6,13 @@
  *		Ingo Weinhold, bonefish@cs.tu-berlin.de
  */
 
+
 /*!	\file PartitionMap.cpp
 	\brief Definitions for "intel" style partitions and implementation
 		   of related classes.
 */
 
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -356,19 +358,6 @@ Partition::Unset()
 }
 
 
-#ifdef _BOOT_MODE
-void
-Partition::AdjustSize(off_t sessionSize)
-{
-	// To work around buggy (or older) BIOS, we shrink the partition size to
-	// always fit into its session - this should improve detection of boot
-	// partitions (see bug #238 for more information)
-	if (sessionSize < fOffset + fSize && sessionSize > fOffset)
-		fSize = sessionSize - fOffset;
-}
-#endif
-
-
 bool
 Partition::CheckLocation(off_t sessionSize) const
 {
@@ -410,6 +399,20 @@ Partition::CheckLocation(off_t sessionSize) const
 }
 
 
+void
+Partition::FitSizeToSession(off_t sessionSize)
+{
+	// To work around buggy (or older) BIOS, we shrink the partition size to
+	// always fit into its session - this should improve detection of boot
+	// partitions (see bug #238 for more information).
+	// Also, the drive size is obviously reported differently sometimes; this
+	// should let us read problematic drives - let the file system figure out
+	// if something is wrong.
+	if (sessionSize < fOffset + fSize && sessionSize > fOffset)
+		fSize = sessionSize - fOffset;
+}
+
+
 //	#pragma mark - PrimaryPartition
 
 

src/add-ons/kernel/partitioning_systems/intel/PartitionMap.h

@@ -182,9 +182,7 @@ public:
 									{ fBlockSize = blockSize; }
 
 			bool				CheckLocation(off_t sessionSize) const;
-#ifdef _BOOT_MODE
+			void				FitSizeToSession(off_t sessionSize);
-			void				AdjustSize(off_t sessionSize);
-#endif
 
 private:
 			off_t				fPartitionTableOffset;

src/add-ons/kernel/partitioning_systems/intel/PartitionMapParser.cpp

@@ -110,10 +110,9 @@ PartitionMapParser::_ParsePrimary(const partition_table* table)
 		PrimaryPartition* partition = fMap->PrimaryPartitionAt(i);
 		partition->SetTo(descriptor, 0, fBlockSize);
 
-#ifdef _BOOT_MODE
+		// work-around potential BIOS/OS problems
-		// work-around potential BIOS problems
+		partition->FitSizeToSession(fSessionSize);
-		partition->AdjustSize(fSessionSize);
+
-#endif
 		// ignore, if location is bad
 		if (!partition->CheckLocation(fSessionSize)) {
 			TRACE(("intel: _ParsePrimary(): partition %ld: bad location, "