[GFS2] Remove function gfs2_get_block

This patch is just a cleanup.  Function gfs2_get_block() just calls
function gfs2_block_map reversing the last two parameters.  By
reversing the parameters, gfs2_block_map() may be called directly
and function gfs2_get_block may be eliminated altogether.
Since this function is done for every block operation,
this streamlines the code and makes it a little bit more efficient.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

diff --cc fs/gfs2/bmap.c
Simple merge

diff --cc fs/gfs2/bmap.h
Simple merge

diff --cc fs/gfs2/log.c
Simple merge

diff --cc fs/gfs2/ops_address.c
Simple merge

diff --cc fs/gfs2/ops_address.h
Simple merge

diff --cc fs/gfs2/ops_file.c
Simple merge

diff --cc fs/gfs2/quota.c
Simple merge

diff --cc fs/gfs2/recovery.c
Simple merge