> If this is right, does it mean that Ext2/3 does not touch any VFS data > structures like s_blocksize and s_file and the VFS is solely responsible > for its data structures? > ext2 or any file system is responsible for s_blocksize- which basically sets the io-size for the block device file system is using. s_files is mainly used by VFS layer at the time we open/close a file. Basically all the structures/functions -- ----------- S K T ----------- -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/