From 2f14f5ee995380c9619c9c9c1a4385fd36750fd3 Mon Sep 17 00:00:00 2001
From: Ingo Weinhold <ingo_weinhold@gmx.de>
Date: Mon, 21 Jul 2008 00:30:16 +0000
Subject: [PATCH] axeld + bonefish + mmlr: * Added trace entry for block reads
 from disk.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26534 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/system/kernel/cache/block_cache.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/system/kernel/cache/block_cache.cpp b/src/system/kernel/cache/block_cache.cpp
index f7c10f164a..b10e23cac9 100644
--- a/src/system/kernel/cache/block_cache.cpp
+++ b/src/system/kernel/cache/block_cache.cpp
@@ -225,6 +225,17 @@ public:
 	virtual const char* _Action() const { return "put"; }
 };
 
+class Read : public Action {
+public:
+	Read(block_cache *cache, cached_block* block)
+		: Action(cache, block)
+	{
+		Initialized();
+	}
+
+	virtual const char* _Action() const { return "read"; }
+};
+
 class Write : public Action {
 public:
 	Write(block_cache *cache, cached_block* block)
@@ -1123,6 +1134,7 @@ get_cached_block(block_cache *cache, off_t blockNumber, bool *_allocated,
 				blockNumber, bytesRead, strerror(errno)));
 			return NULL;
 		}
+		TB(Read(cache, block));
 	}
 
 	if (block->unused) {