Changeset 238 for trunk/kernel/vfs/devfs.h

Timestamp:

Jul 19, 2017, 3:31:39 PM (7 years ago)

Author:

alain

Message:

Fixing bugs in vfs_lookup()

File:

• trunk/kernel/vfs/devfs.h (modified) (2 diffs)

trunk/kernel/vfs/devfs.h

@@ -28 +28 @@
 //////////////////////////////////////////////////////////////////////////////////////////
 // The DEVFS File System contains inodes and dentries associated to all chdev descriptors 
-// availables in the architecture. It is structured as a three levels tree structure :
+// availables in the architecture. 
+//
+// It is structured as a three levels tree structure :
 // - The "dev" directory inode is stored in cluster_IO. It is the root of the DEVFS
 //   file system. The parent inode is the "/" VFS root.
@@ -38 +40 @@
 //   The parent dentry is stored in cluster_IO.
 //
-// The DEVFS file system uses the DEVFS context extension to register an extended pointer
-// on the DEVFS "dev" inode, and and another extended pointer on the "external" inode.
-//
-// The DEVFS file system uses the VFS inode extension to store the pointer 
-// on the associated chdev descriptor.
+// The DEVFS extensions to the generic VFS are the following:
+// 1) The vfs_ctx_t "extend" field is a void* pointing on the devfs_ctx_t structure.
+//    This structure contains two extended pointers on the DEVFS "dev" directory inode,
+//    and on the "external" directory inode.
+// 2) The vfs_inode_t "extend" field is a void*, pointing on the associated 
+//    chdev descriptor.
 //////////////////////////////////////////////////////////////////////////////////////////