block: replace end_request() with [__]blk_end_request_cur()

end_request() has been kept around for backward compatibility;
however, it's about time for it to go away.

* There aren't too many users left.

* Its use of @updtodate is pretty confusing.

* In some cases, newer code ends up using mixture of end_request() and
  [__]blk_end_request[_all](), which is way too confusing.

So, add [__]blk_end_request_cur() and replace end_request() with it.
Most conversions are straightforward.  Noteworthy ones are...

* paride/pcd: next_request() updated to take 0/-errno instead of 1/0.

* paride/pf: pf_end_request() and next_request() updated to take
  0/-errno instead of 1/0.

* xd: xd_readwrite() updated to return 0/-errno instead of 1/0.

* mtd/mtd_blkdevs: blktrans_discard_request() updated to return
  0/-errno instead of 1/0.  Unnecessary local variable res
  initialization removed from mtd_blktrans_thread().

[ Impact: cleanup ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Joerg Dorchain <joerg@dorchain.net>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Laurent Vivier <Laurent@lvivier.info>
Cc: Tim Waugh <tim@cyberelk.net>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: unsik Kim <donari75@gmail.com>

1 files changed, 7 insertions, 7 deletions

diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index 4234c11c1e4c..44a8702136a9 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -612,7 +612,7 @@ static void fd_error( void )
         CURRENT->errors++;
         if (CURRENT->errors >= MAX_ERRORS) {
                 printk(KERN_ERR "fd%d: too many errors.\n", SelectedDrive );
-                end_request(CURRENT, 0);
+                __blk_end_request_cur(CURRENT, -EIO);
         }
         else if (CURRENT->errors == RECALIBRATE_ERRORS) {
                 printk(KERN_WARNING "fd%d: recalibrating\n", SelectedDrive );
@@ -734,7 +734,7 @@ static void do_fd_action( int drive )
                         /* all sectors finished */
                         CURRENT->nr_sectors -= CURRENT->current_nr_sectors;
                         CURRENT->sector += CURRENT->current_nr_sectors;
-                        end_request(CURRENT, 1);
+                        __blk_end_request_cur(CURRENT, 0);
                         redo_fd_request();
                         return;
                     }
@@ -1141,7 +1141,7 @@ static void fd_rwsec_done1(int status)
                 /* all sectors finished */
                 CURRENT->nr_sectors -= CURRENT->current_nr_sectors;
                 CURRENT->sector += CURRENT->current_nr_sectors;
-                end_request(CURRENT, 1);
+                __blk_end_request_cur(CURRENT, 0);
                 redo_fd_request();
         }
         return;
@@ -1414,7 +1414,7 @@ repeat:
         if (!UD.connected) {
                 /* drive not connected */
                 printk(KERN_ERR "Unknown Device: fd%d\n", drive );
-                end_request(CURRENT, 0);
+                __blk_end_request_cur(CURRENT, -EIO);
                 goto repeat;
         }
                 
@@ -1430,12 +1430,12 @@ repeat:
                 /* user supplied disk type */
                 if (--type >= NUM_DISK_MINORS) {
                         printk(KERN_WARNING "fd%d: invalid disk format", drive );
-                        end_request(CURRENT, 0);
+                        __blk_end_request_cur(CURRENT, -EIO);
                         goto repeat;
                 }
                 if (minor2disktype[type].drive_types > DriveType)  {
                         printk(KERN_WARNING "fd%d: unsupported disk format", drive );
-                        end_request(CURRENT, 0);
+                        __blk_end_request_cur(CURRENT, -EIO);
                         goto repeat;
                 }
                 type = minor2disktype[type].index;
@@ -1445,7 +1445,7 @@ repeat:
         }
         
         if (CURRENT->sector + 1 > UDT->blocks) {
-                end_request(CURRENT, 0);
+                __blk_end_request_cur(CURRENT, -EIO);
                 goto repeat;
         }