ide: add ide_end_rq() (v2)

* Move request dequeuing from __ide_end_request() to ide_end_request().

* Rename __ide_end_request() to ide_end_rq() and export it.

* Fix ide_end_rq() to pass original blk_end_request() return value.

* ide_end_dequeued_request() is used only in cdrom_end_request()
  so inline it there and then remove the function.

v2:
* Remove needless BUG_ON() while at it (start_request()'s one is enough).

There should be no functional changes caused by this patch.

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

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index bb804ae..830fd57 100644 (file)
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -272,8 +272,8 @@ static void cdrom_end_request(ide_drive_t *drive, int uptodate)
                         * now end the failed request
                         */
                        if (blk_fs_request(failed)) {
-                               if (ide_end_dequeued_request(drive, failed, 0,
-                                               failed->hard_nr_sectors))
+                               if (ide_end_rq(drive, failed, 0,
+                                               failed->hard_nr_sectors << 9))
                                        BUG();
                        } else {
                                if (blk_end_request(failed, -EIO,

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 0873887..e5fcb28 100644 (file)
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -54,10 +54,9 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
-static int __ide_end_request(ide_drive_t *drive, struct request *rq,
-                            int uptodate, unsigned int nr_bytes, int dequeue)
+int ide_end_rq(ide_drive_t *drive, struct request *rq, int uptodate,
+              unsigned int nr_bytes)
 {
-       int ret = 1;
        int error = 0;
 
        if (uptodate <= 0)
@@ -83,14 +82,9 @@ static int __ide_end_request(ide_drive_t *drive, struct request *rq,
                ide_dma_on(drive);
        }
 
-       if (!blk_end_request(rq, error, nr_bytes))
-               ret = 0;
-
-       if (ret == 0 && dequeue)
-               drive->hwif->rq = NULL;
-
-       return ret;
+       return blk_end_request(rq, error, nr_bytes);
 }
+EXPORT_SYMBOL_GPL(ide_end_rq);
 
 /**
  *     ide_end_request         -       complete an IDE I/O
@@ -107,6 +101,7 @@ 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;
 
        if (!nr_bytes) {
                if (blk_pc_request(rq))
@@ -115,33 +110,13 @@ int ide_end_request (ide_drive_t *drive, int uptodate, int nr_sectors)
                        nr_bytes = rq->hard_cur_sectors << 9;
        }
 
-       return __ide_end_request(drive, rq, uptodate, nr_bytes, 1);
-}
-EXPORT_SYMBOL(ide_end_request);
-
-/**
- *     ide_end_dequeued_request        -       complete an IDE I/O
- *     @drive: IDE device for the I/O
- *     @uptodate:
- *     @nr_sectors: number of sectors completed
- *
- *     Complete an I/O that is no longer on the request queue. This
- *     typically occurs when we pull the request and issue a REQUEST_SENSE.
- *     We must still finish the old request but we must not tamper with the
- *     queue in the meantime.
- *
- *     NOTE: This path does not handle barrier, but barrier is not supported
- *     on ide-cd anyway.
- */
-
-int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
-                            int uptodate, int nr_sectors)
-{
-       BUG_ON(!blk_rq_started(rq));
+       rc = ide_end_rq(drive, rq, uptodate, nr_bytes);
+       if (rc == 0)
+               drive->hwif->rq = NULL;
 
-       return __ide_end_request(drive, rq, uptodate, nr_sectors << 9, 0);
+       return rc;
 }
-EXPORT_SYMBOL_GPL(ide_end_dequeued_request);
+EXPORT_SYMBOL(ide_end_request);
 
 void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err)
 {

diff --git a/include/linux/ide.h b/include/linux/ide.h
index f9decc9..f910f4c 100644 (file)
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1131,8 +1131,8 @@ int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned l
 extern int ide_vlb_clk;
 extern int ide_pci_clk;
 
+int ide_end_rq(ide_drive_t *, struct request *, int, unsigned int);
 int ide_end_request(ide_drive_t *, int, int);
-int ide_end_dequeued_request(ide_drive_t *, struct request *, int, int);
 void ide_kill_rq(ide_drive_t *, struct request *);
 
 void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int,