* The block allocator now uses block_cache_discard() to make sure the file

and the block cache don't interfere when working on the same blocks.
* This has fixed all kinds of file corruptions I could reproduce before,
  therefore likely also bug #3010.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28517 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/file_systems/bfs/BlockAllocator.cpp

@@ -867,6 +867,11 @@ BlockAllocator::AllocateBlocks(Transaction& transaction, int32 groupIndex,
 		// If the value is not correct at mount time, it will be
 		// fixed anyway.
 
+	// We need to flush any remaining blocks in the new allocation to make sure
+	// they won't interfere with the file cache.
+	block_cache_discard(fVolume->BlockCache(), fVolume->ToBlock(run),
+		run.Length());
+
 	T(Allocate(run));
 	return B_OK;
 }