From e238bce6f5a96d7aabf4a18aab2a063eda645759 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Axel=20D=C3=B6rfler?= <axeld@pinc-software.de>
Date: Mon, 12 Aug 2002 16:55:12 +0000
Subject: [PATCH] BufferPool::ReleaseBuffers() didn't set fFirstFree correctly.
 Setting uncached access to a file no longer returns an error (if it
 succeeds).

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@716 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/add-ons/kernel/file_systems/bfs/BufferPool.cpp       | 1 +
 src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp | 9 ++++++---
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/add-ons/kernel/file_systems/bfs/BufferPool.cpp b/src/add-ons/kernel/file_systems/bfs/BufferPool.cpp
index e6182e73aa..246bf3bf4d 100644
--- a/src/add-ons/kernel/file_systems/bfs/BufferPool.cpp
+++ b/src/add-ons/kernel/file_systems/bfs/BufferPool.cpp
@@ -102,6 +102,7 @@ BufferPool::ReleaseBuffers()
 		free(buffer);
 		buffer = nextBuffer;
 	}
+	fFirstFree = buffer;
 
 	release_sem(fLock);
 }
diff --git a/src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp b/src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp
index 3809f6ae5a..7ff843f901 100644
--- a/src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp
+++ b/src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp
@@ -525,13 +525,16 @@ bfs_ioctl(void *_ns, void *_node, void *_cookie, int cmd, void *buffer, size_t b
 	switch (cmd) {
 		case IOCTL_FILE_UNCACHED_IO:
 		{
+			if (inode == NULL)
+				return B_BAD_VALUE;
+
 			// if the inode is already set up for uncached access, bail out
 			if (inode->Flags() & INODE_NO_CACHE) {
 				FATAL(("File %Ld is already uncached\n", inode->ID()));
 				return B_ERROR;
 			}
-			if (inode != NULL)
-				PRINT(("trying to make access to inode %Ld uncached. Not yet implemented!\n",inode->ID()));
+			
+			PRINT(("uncached access to inode %Ld\n", inode->ID()));
 
 			// ToDo: sync the cache for this file!
 			// Unfortunately, we can't remove any blocks from the cache in BeOS,
@@ -543,7 +546,7 @@ bfs_ioctl(void *_ns, void *_node, void *_cookie, int cmd, void *buffer, size_t b
 			status_t status = volume->Pool().RequestBuffers(volume->BlockSize());
 			if (status == B_OK)
 				inode->Node()->flags |= INODE_NO_CACHE;
-			return B_ERROR;
+			return status;
 		}
 #ifdef DEBUG
 		case 56742: