diff options
| author | Matthew Wilcox <matthew@wil.cx> | 2007-09-25 12:42:04 -0400 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.localdomain> | 2007-10-12 14:52:46 -0400 |
| commit | 6f5391c283d7fdcf24bf40786ea79061919d1e1d (patch) | |
| tree | 32ee9abddf9879445792019e1c03bcd28ce6bd4f /drivers/scsi/sr.c | |
| parent | 687d2bc4877081a44c41b5b312e012cc69edda53 (diff) | |
| download | linux-6f5391c283d7fdcf24bf40786ea79061919d1e1d.tar.bz2 | |
[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.c | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index a0c4e13d4dab..c61999031141 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. */ |