ide: remove ide_end_request()

* Add ide_rq_bytes() helper.

* Add blk_noretry_request() quirk to ide_complete_rq() (currently only fs
  requests can be marked as "noretry" so there is no change in behavior).

* Switch current ide_end_request() users to use ide_complete_rq().

  [ No need to check for rq->nr_sectors == 0 in {ide_dma,task_pio}_intr(),
    nsectors == 0 in cdrom_end_request() and err == 0 in ide_do_devset(). ]

* Remove no longer needed ide_end_request().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 18 insertions, 43 deletions

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 8e2868617a46..f59c709052d2 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -71,48 +71,6 @@ int ide_end_rq(ide_drive_t *drive, struct request *rq, int error,
 }
 EXPORT_SYMBOL_GPL(ide_end_rq);
 
-/**
- *      ide_end_request         -       complete an IDE I/O
- *      @drive: IDE device for the I/O
- *      @uptodate:
- *      @nr_sectors: number of sectors completed
- *
- *      This is our end_request wrapper function. We complete the I/O
- *      update random number input and dequeue the request, which if
- *      it was tagged may be out of order.
- */
-
-int ide_end_request (ide_drive_t *drive, int uptodate, int nr_sectors)
-{
-        unsigned int nr_bytes = nr_sectors << 9;
-        struct request *rq = drive->hwif->rq;
-        int rc, error = 0;
-
-        if (!nr_bytes) {
-                if (blk_pc_request(rq))
-                        nr_bytes = rq->data_len;
-                else
-                        nr_bytes = rq->hard_cur_sectors << 9;
-        }
-
-        /*
-         * if failfast is set on a request, override number of sectors
-         * and complete the whole request right now
-         */
-        if (blk_noretry_request(rq) && uptodate <= 0)
-                nr_bytes = rq->hard_nr_sectors << 9;
-
-        if (uptodate <= 0)
-                error = uptodate ? uptodate : -EIO;
-
-        rc = ide_end_rq(drive, rq, error, nr_bytes);
-        if (rc == 0)
-                drive->hwif->rq = NULL;
-
-        return rc;
-}
-EXPORT_SYMBOL(ide_end_request);
-
 void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err)
 {
         struct ide_taskfile *tf = &cmd->tf;
@@ -141,12 +99,29 @@ void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err)
                 kfree(cmd);
 }
 
+/* obsolete, blk_rq_bytes() should be used instead */
+unsigned int ide_rq_bytes(struct request *rq)
+{
+        if (blk_pc_request(rq))
+                return rq->data_len;
+        else
+                return rq->hard_cur_sectors << 9;
+}
+EXPORT_SYMBOL_GPL(ide_rq_bytes);
+
 int ide_complete_rq(ide_drive_t *drive, int error, unsigned int nr_bytes)
 {
         ide_hwif_t *hwif = drive->hwif;
         struct request *rq = hwif->rq;
         int rc;
 
+        /*
+         * if failfast is set on a request, override number of sectors
+         * and complete the whole request right now
+         */
+        if (blk_noretry_request(rq) && error <= 0)
+                nr_bytes = rq->hard_nr_sectors << 9;
+
         rc = ide_end_rq(drive, rq, error, nr_bytes);
         if (rc == 0)
                 hwif->rq = NULL;
@@ -170,7 +145,7 @@ void ide_kill_rq(ide_drive_t *drive, struct request *rq)
                         rq->errors = IDE_DRV_ERROR_GENERAL;
                 else if (blk_fs_request(rq) == 0 && rq->errors == 0)
                         rq->errors = -EIO;
-                ide_end_request(drive, 0, 0);
+                ide_complete_rq(drive, -EIO, ide_rq_bytes(rq));
         }
 }