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, 5 insertions, 5 deletions

diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index 8df436ff7068..b99a2a606d02 100644
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -1359,7 +1359,7 @@ static void redo_fd_request(void)
 #endif
                 block = CURRENT->sector + cnt;
                 if ((int)block > floppy->blocks) {
-                        end_request(CURRENT, 0);
+                        __blk_end_request_cur(CURRENT, -EIO);
                         goto repeat;
                 }
 
@@ -1373,11 +1373,11 @@ static void redo_fd_request(void)
 
                 if ((rq_data_dir(CURRENT) != READ) && (rq_data_dir(CURRENT) != WRITE)) {
                         printk(KERN_WARNING "do_fd_request: unknown command\n");
-                        end_request(CURRENT, 0);
+                        __blk_end_request_cur(CURRENT, -EIO);
                         goto repeat;
                 }
                 if (get_track(drive, track) == -1) {
-                        end_request(CURRENT, 0);
+                        __blk_end_request_cur(CURRENT, -EIO);
                         goto repeat;
                 }
 
@@ -1391,7 +1391,7 @@ static void redo_fd_request(void)
 
                         /* keep the drive spinning while writes are scheduled */
                         if (!fd_motor_on(drive)) {
-                                end_request(CURRENT, 0);
+                                __blk_end_request_cur(CURRENT, -EIO);
                                 goto repeat;
                         }
                         /*
@@ -1410,7 +1410,7 @@ static void redo_fd_request(void)
         CURRENT->nr_sectors -= CURRENT->current_nr_sectors;
         CURRENT->sector += CURRENT->current_nr_sectors;
 
-        end_request(CURRENT, 1);
+        __blk_end_request_cur(CURRENT, 0);
         goto repeat;
 }