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authorMatthew Wilcox <matthew@wil.cx>2007-09-25 12:42:04 -0400
committerJames Bottomley <jejb@mulgrave.localdomain>2007-10-12 14:52:46 -0400
commit6f5391c283d7fdcf24bf40786ea79061919d1e1d (patch)
tree32ee9abddf9879445792019e1c03bcd28ce6bd4f /drivers/scsi/sr.c
parent687d2bc4877081a44c41b5b312e012cc69edda53 (diff)
downloadop-kernel-dev-6f5391c283d7fdcf24bf40786ea79061919d1e1d.zip
op-kernel-dev-6f5391c283d7fdcf24bf40786ea79061919d1e1d.tar.gz
[SCSI] Get rid of scsi_cmnd->done
The ULD ->done callback moves into the scsi_driver. By moving the call to scsi_io_completion() from scsi_blk_pc_done() to scsi_finish_command(), we can eliminate the latter entirely. By returning 'good_bytes' from the ->done callback (rather than invoking scsi_io_completion()), we can stop exporting scsi_io_completion(). Also move the prototypes from sd.h to sd.c as they're all internal anyway. Rename sd_rw_intr to sd_done and rw_intr to sr_done. Inspired-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/sr.c')
-rw-r--r--drivers/scsi/sr.c21
1 files changed, 6 insertions, 15 deletions
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index a0c4e13..c619990 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -78,6 +78,7 @@ MODULE_ALIAS_SCSI_DEVICE(TYPE_WORM);
static int sr_probe(struct device *);
static int sr_remove(struct device *);
+static int sr_done(struct scsi_cmnd *);
static struct scsi_driver sr_template = {
.owner = THIS_MODULE,
@@ -86,6 +87,7 @@ static struct scsi_driver sr_template = {
.probe = sr_probe,
.remove = sr_remove,
},
+ .done = sr_done,
};
static unsigned long sr_index_bits[SR_DISKS / BITS_PER_LONG];
@@ -208,12 +210,12 @@ static int sr_media_change(struct cdrom_device_info *cdi, int slot)
}
/*
- * rw_intr is the interrupt routine for the device driver.
+ * sr_done is the interrupt routine for the device driver.
*
- * It will be notified on the end of a SCSI read / write, and will take on
+ * It will be notified on the end of a SCSI read / write, and will take one
* of several actions based on success or failure.
*/
-static void rw_intr(struct scsi_cmnd * SCpnt)
+static int sr_done(struct scsi_cmnd *SCpnt)
{
int result = SCpnt->result;
int this_count = SCpnt->request_bufflen;
@@ -286,12 +288,7 @@ static void rw_intr(struct scsi_cmnd * SCpnt)
}
}
- /*
- * This calls the generic completion function, now that we know
- * how many actual sectors finished, and how many sectors we need
- * to say have failed.
- */
- scsi_io_completion(SCpnt, good_bytes);
+ return good_bytes;
}
static int sr_prep_fn(struct request_queue *q, struct request *rq)
@@ -428,12 +425,6 @@ static int sr_prep_fn(struct request_queue *q, struct request *rq)
SCpnt->timeout_per_command = timeout;
/*
- * This is the completion routine we use. This is matched in terms
- * of capability to this function.
- */
- SCpnt->done = rw_intr;
-
- /*
* This indicates that the command is ready from our end to be
* queued.
*/
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