System ACE driver - for 2.6 kernel - need help to understand xsa_thread

[agnel juni]

Hello all
 
 I am trying to understand the parameters that are sent through "cur_req" function used in funtion xsa_thread in System ACE driver.
 
 In xsa_thread function in the System ACE driver , 
 
 In 2.4 kernel:
 --------------------
 while ((stat = cur_req(&SysAce, sector,
                                        CURRENT->current_nr_sectors,
                                        CURRENT->buffer)) == XST_DEVICE_BUSY)
                         xsa_short_delay();
 
  
 Where as in 2.6 kernel this is changed to 
 ---------------------------------------------------------------
 
  for(i = xsa_cur_req->current_nr_sectors; i > 0; i-=2){
                         xsa_device.req_done = 1;
                         while ((stat = cur_req(&SysAce, sector,
                                         2,
                                         buffer)) == XST_DEVICE_BUSY)
                                 xsa_short_delay();
 #endif
 
 Ameet , could you help me understand the impact of the parameters, especailly the 3rd paramter which is hardcoded in 2.6 kernel.It would be great if you could clarify this in regard to 'mount' command.
 
 Thanks in advance
 Junita
 
 
 
 
 				
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