Provided by: kernel-doc-2.4.27_2.4.27-12_all bug


       submit_bh -


       void submit_bh (int rw, struct buffer_head *bh);


       rw           whether to READ or WRITE, or maybe to READA (read ahead)

       bh           The struct buffer_head which describes the I/O


       submit_bh  is very similar in purpose to generic_make_request, and uses
       that function to do most of the work.

       The extra functionality provided by submit_bh is to determine b_rsector
       from  b_blocknr  and  b_size, and to set b_rdev from b_dev.  This is is
       appropriate for IO requests that come from the buffer  cache  and  page
       cache which (currently) always use aligned blocks.