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authorBorislav Petkov <petkovbb@googlemail.com>2009-04-19 07:00:42 +0900
committerJens Axboe <jens.axboe@oracle.com>2009-04-28 07:37:30 +0200
commit068753203e6cd085664a62e0fc0636e19b148a12 (patch)
treed3eec62f2ecd5524c89bb7c8d4f482e93a4cc196 /drivers/ide/ide-tape.c
parentc457ce874a0f3dfa3d5e9f2309789f6f34e24325 (diff)
ide-atapi: convert ide-{floppy,tape} to using preallocated sense buffer
Since we're issuing REQ_TYPE_SENSE now we need to allow those types of rqs in the ->do_request callbacks. As a future improvement, sense_len assignment might be unified across all ATAPI devices. Borislav to check with specs and test. As a result, get rid of ide_queue_pc_head() and drive->request_sense_rq. tj: * Init request sense ide_atapi_pc from sense request. In the longer timer, it would probably better to fold ide_create_request_sense_cmd() into its only current user - ide_floppy_get_format_progress(). * ide_retry_pc() no longer takes @disk. CC: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> CC: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ide/ide-tape.c')
-rw-r--r--drivers/ide/ide-tape.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index aadf53cfac6..8324dfa78a3 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -695,7 +695,7 @@ static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive)
printk(KERN_ERR "ide-tape: %s: I/O error, ",
tape->name);
/* Retry operation */
- ide_retry_pc(drive, tape->disk);
+ ide_retry_pc(drive);
return ide_stopped;
}
pc->error = 0;
@@ -752,7 +752,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
(unsigned long long)rq->sector, rq->nr_sectors,
rq->current_nr_sectors);
- if (!blk_special_request(rq)) {
+ if (!(blk_special_request(rq) || blk_sense_request(rq))) {
/* We do not support buffer cache originated requests. */
printk(KERN_NOTICE "ide-tape: %s: Unsupported request in "
"request queue (%d)\n", drive->name, rq->cmd_type);
@@ -840,6 +840,9 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
BUG();
out:
+ /* prepare sense request for this command */
+ ide_prep_sense(drive, rq);
+
memset(&cmd, 0, sizeof(cmd));
if (rq_data_dir(rq))