[haiku-commits] r33674 - haiku/trunk/src/add-ons/kernel/file_systems/bfs
- From: axeld@xxxxxxxxxxxxxxxx
- To: haiku-commits@xxxxxxxxxxxxx
- Date: Tue, 20 Oct 2009 02:23:53 +0200 (CEST)
Author: axeld
Date: 2009-10-20 02:23:53 +0200 (Tue, 20 Oct 2009)
New Revision: 33674
Changeset: http://dev.haiku-os.org/changeset/33674/haiku
Modified:
haiku/trunk/src/add-ons/kernel/file_systems/bfs/BlockAllocator.cpp
haiku/trunk/src/add-ons/kernel/file_systems/bfs/BlockAllocator.h
haiku/trunk/src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp
Log:
* Added a very simple way to fragment your disk.
Modified: haiku/trunk/src/add-ons/kernel/file_systems/bfs/BlockAllocator.cpp
===================================================================
--- haiku/trunk/src/add-ons/kernel/file_systems/bfs/BlockAllocator.cpp
2009-10-20 00:18:32 UTC (rev 33673)
+++ haiku/trunk/src/add-ons/kernel/file_systems/bfs/BlockAllocator.cpp
2009-10-20 00:23:53 UTC (rev 33674)
@@ -1062,6 +1062,37 @@
}
+#ifdef DEBUG_FRAGMENTER
+void
+BlockAllocator::Fragment()
+{
+ AllocationBlock cached(fVolume);
+ MutexLocker lock(fLock);
+
+ // only leave 4 block holes
+ static const uint32 kMask = 0x0f0f0f0f;
+ uint32 valuesPerBlock = fVolume->BlockSize() / 4;
+
+ for (int32 i = 0; i < fNumGroups; i++) {
+ AllocationGroup& group = fGroups[i];
+
+ for (uint32 block = 0; block < group.NumBlocks(); block++) {
+ Transaction transaction(fVolume, 0);
+
+ if (cached.SetToWritable(transaction, group, block) !=
B_OK)
+ return;
+
+ for (int32 index = 0; index < valuesPerBlock; index++) {
+ cached.Block(index) |=
HOST_ENDIAN_TO_BFS_INT32(kMask);
+ }
+
+ transaction.Done();
+ }
+ }
+}
+#endif // DEBUG_FRAGMENTER
+
+
#ifdef DEBUG_ALLOCATION_GROUPS
void
BlockAllocator::_CheckGroup(int32 groupIndex) const
Modified: haiku/trunk/src/add-ons/kernel/file_systems/bfs/BlockAllocator.h
===================================================================
--- haiku/trunk/src/add-ons/kernel/file_systems/bfs/BlockAllocator.h
2009-10-20 00:18:32 UTC (rev 33673)
+++ haiku/trunk/src/add-ons/kernel/file_systems/bfs/BlockAllocator.h
2009-10-20 00:23:53 UTC (rev 33674)
@@ -21,6 +21,7 @@
//#define DEBUG_ALLOCATION_GROUPS
+//#define DEBUG_FRAGMENTER
class BlockAllocator {
@@ -63,6 +64,9 @@
#ifdef BFS_DEBUGGER_COMMANDS
void Dump(int32 index);
#endif
+#ifdef DEBUG_FRAGMENTER
+ void Fragment();
+#endif
private:
status_t _RemoveInvalidNode(Inode*
parent, BPlusTree* tree,
Modified: haiku/trunk/src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp
===================================================================
--- haiku/trunk/src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp
2009-10-20 00:18:32 UTC (rev 33673)
+++ haiku/trunk/src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp
2009-10-20 00:23:53 UTC (rev 33674)
@@ -682,6 +682,16 @@
return volume->WriteSuperBlock();
}
+
+#ifdef DEBUG_FRAGMENTER
+ case 56741:
+ {
+ BlockAllocator& allocator = volume->Allocator();
+ allocator.Fragment();
+ return B_OK;
+ }
+#endif
+
#ifdef DEBUG
case 56742:
{
Other related posts:
- » [haiku-commits] r33674 - haiku/trunk/src/add-ons/kernel/file_systems/bfs - axeld
