[PATCH 12/18] ide-cd: move request prep chunk from cdrom_do_newpc_cont to rq issue path

From: Borislav Petkov
Date: Thu Jun 12 2008 - 02:47:58 EST


Bart: As a nice side effect, this minimizes the IRQ handler execution time.

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@xxxxxxxxx>
---
drivers/ide/ide-cd.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index a5715b1..0cd23d4 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1167,9 +1167,6 @@ static ide_startstop_t cdrom_do_newpc_cont(ide_drive_t *drive)
{
struct request *rq = HWGROUP(drive)->rq;

- if (!rq->timeout)
- rq->timeout = ATAPI_WAIT_PC;
-
return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr);
}

@@ -1253,11 +1250,18 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
}
info->last_block = block;

- } else if (blk_sense_request(rq) || blk_pc_request(rq) ||
+ } else if (blk_sense_request(rq) ||
+ blk_pc_request(rq) ||
rq->cmd_type == REQ_TYPE_ATA_PC) {
+
xferlen = rq->data_len;
fn = cdrom_do_newpc_cont;
+
+ if (!rq->timeout)
+ rq->timeout = ATAPI_WAIT_PC;
+
cdrom_do_block_pc(drive, rq);
+
} else if (blk_special_request(rq)) {
/* right now this can only be a reset... */
cdrom_end_request(drive, 1);
@@ -1271,8 +1275,6 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
return cdrom_start_packet_command(drive, xferlen, fn);
}

-
-
/*
* Ioctl handling.
*
--
1.5.5.1

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