Reading from block device driver

["Vaibhav Nipunage" <linuxsyspro@xxxxxxxxx>]

Hi,

I am writing a block device driver. And I want to read data from it. 

I read about 2 functions namely __bread() and block_read_full_page(). But I have confusion in it.

Can any body tell me the what is difference between these 2 functions? And which is more effective to use? 

And which function gives me full information for reading a data from block device deriver?

Please help me.

Thanks in advance

Regards,

Vaibhav Nipunage