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Message-Id: <20090201192807.1592.37491.sendpatchset@localhost.localdomain>
Date: Sun, 01 Feb 2009 20:28:07 +0100
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: linux-ide@...r.kernel.org
Cc: Borislav Petkov <petkovbb@...il.com>,
Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH 5/8] ide: use ->end_request only for private device driver requests
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: [PATCH] ide: use ->end_request only for private device driver requests
* Move IDE{FLOPPY,TAPE}_ERROR_* defines to <linux/ide.h> and rename them
to IDE_DRV_ERROR_*.
* Handle ->end_request special cases for floppy/tape media in ide_kill_rq().
* Call ->end_request only for private device driver requests.
There should be no functional changes caused by this patch.
Cc: Borislav Petkov <petkovbb@...il.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
drivers/ide/ide-floppy.c | 7 ++-----
drivers/ide/ide-io.c | 7 ++++++-
drivers/ide/ide-tape.c | 19 +++++++------------
drivers/ide/ide-taskfile.c | 16 +++-------------
include/linux/ide.h | 7 +++++++
5 files changed, 25 insertions(+), 31 deletions(-)
Index: b/drivers/ide/ide-floppy.c
===================================================================
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -61,9 +61,6 @@
*/
#define IDEFLOPPY_PC_DELAY (HZ/20) /* default delay for ZIP 100 (50ms) */
-/* Error code returned in rq->errors to the higher part of the driver. */
-#define IDEFLOPPY_ERROR_GENERAL 101
-
/*
* Used to finish servicing a request. For read/write requests, we will call
* ide_end_request to pass to the next buffer.
@@ -77,7 +74,7 @@ static int ide_floppy_end_request(ide_dr
switch (uptodate) {
case 0:
- error = IDEFLOPPY_ERROR_GENERAL;
+ error = IDE_DRV_ERROR_GENERAL;
break;
case 1:
@@ -183,7 +180,7 @@ static ide_startstop_t idefloppy_issue_p
if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR))
ide_floppy_report_error(floppy, pc);
/* Giving up */
- pc->error = IDEFLOPPY_ERROR_GENERAL;
+ pc->error = IDE_DRV_ERROR_GENERAL;
drive->failed_pc = NULL;
drive->pc_callback(drive, 0);
Index: b/drivers/ide/ide-io.c
===================================================================
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -174,7 +174,12 @@ EXPORT_SYMBOL(ide_complete_rq);
void ide_kill_rq(ide_drive_t *drive, struct request *rq)
{
- if (rq->rq_disk) {
+ drive->failed_pc = NULL;
+
+ if (drive->media == ide_tape)
+ rq->errors = IDE_DRV_ERROR_GENERAL;
+
+ if (blk_special_request(rq) && rq->rq_disk) {
struct ide_driver *drv;
drv = *(struct ide_driver **)rq->rq_disk->private_data;
Index: b/drivers/ide/ide-tape.c
===================================================================
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -152,11 +152,6 @@ struct idetape_bh {
#define IDETAPE_LU_RETENSION_MASK 2
#define IDETAPE_LU_EOT_MASK 4
-/* Error codes returned in rq->errors to the higher part of the driver. */
-#define IDETAPE_ERROR_GENERAL 101
-#define IDETAPE_ERROR_FILEMARK 102
-#define IDETAPE_ERROR_EOD 103
-
/* Structures related to the SELECT SENSE / MODE SENSE packet commands. */
#define IDETAPE_BLOCK_DESCRIPTOR 0
#define IDETAPE_CAPABILITIES_PAGE 0x2a
@@ -422,19 +417,19 @@ static void idetape_analyze_error(ide_dr
}
}
if (pc->c[0] == READ_6 && (sense[2] & 0x80)) {
- pc->error = IDETAPE_ERROR_FILEMARK;
+ pc->error = IDE_DRV_ERROR_FILEMARK;
pc->flags |= PC_FLAG_ABORT;
}
if (pc->c[0] == WRITE_6) {
if ((sense[2] & 0x40) || (tape->sense_key == 0xd
&& tape->asc == 0x0 && tape->ascq == 0x2)) {
- pc->error = IDETAPE_ERROR_EOD;
+ pc->error = IDE_DRV_ERROR_EOD;
pc->flags |= PC_FLAG_ABORT;
}
}
if (pc->c[0] == READ_6 || pc->c[0] == WRITE_6) {
if (tape->sense_key == 8) {
- pc->error = IDETAPE_ERROR_EOD;
+ pc->error = IDE_DRV_ERROR_EOD;
pc->flags |= PC_FLAG_ABORT;
}
if (!(pc->flags & PC_FLAG_ABORT) &&
@@ -474,7 +469,7 @@ static int idetape_end_request(ide_drive
debug_log(DBG_PROCS, "Enter %s\n", __func__);
switch (uptodate) {
- case 0: error = IDETAPE_ERROR_GENERAL; break;
+ case 0: error = IDE_DRV_ERROR_GENERAL; break;
case 1: error = 0; break;
default: error = uptodate;
}
@@ -669,7 +664,7 @@ static ide_startstop_t idetape_issue_pc(
tape->ascq);
}
/* Giving up */
- pc->error = IDETAPE_ERROR_GENERAL;
+ pc->error = IDE_DRV_ERROR_GENERAL;
}
drive->failed_pc = NULL;
drive->pc_callback(drive, 0);
@@ -730,7 +725,7 @@ static ide_startstop_t idetape_media_acc
}
pc->error = 0;
} else {
- pc->error = IDETAPE_ERROR_GENERAL;
+ pc->error = IDE_DRV_ERROR_GENERAL;
drive->failed_pc = NULL;
}
drive->pc_callback(drive, 0);
@@ -1210,7 +1205,7 @@ static int idetape_queue_rw_tail(ide_dri
if (tape->merge_bh)
idetape_init_merge_buffer(tape);
- if (errors == IDETAPE_ERROR_GENERAL)
+ if (errors == IDE_DRV_ERROR_GENERAL)
return -EIO;
return ret;
}
Index: b/drivers/ide/ide-taskfile.c
===================================================================
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -311,12 +311,8 @@ static ide_startstop_t task_error(ide_dr
break;
}
- if (sectors > 0) {
- struct ide_driver *drv;
-
- drv = *(struct ide_driver **)rq->rq_disk->private_data;
- drv->end_request(drive, 1, sectors);
- }
+ if (sectors > 0)
+ ide_end_request(drive, 1, sectors);
}
return ide_error(drive, s, stat);
}
@@ -333,13 +329,7 @@ void task_end_request(ide_drive_t *drive
return;
}
- if (rq->rq_disk) {
- struct ide_driver *drv;
-
- drv = *(struct ide_driver **)rq->rq_disk->private_data;;
- drv->end_request(drive, 1, rq->nr_sectors);
- } else
- ide_end_request(drive, 1, rq->nr_sectors);
+ ide_end_request(drive, 1, rq->nr_sectors);
}
/*
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -40,6 +40,13 @@
#define ERROR_RESET 3 /* Reset controller every 4th retry */
#define ERROR_RECAL 1 /* Recalibrate every 2nd retry */
+/* Error codes returned in rq->errors to the higher part of the driver. */
+enum {
+ IDE_DRV_ERROR_GENERAL = 101,
+ IDE_DRV_ERROR_FILEMARK = 102,
+ IDE_DRV_ERROR_EOD = 103,
+};
+
/*
* Definitions for accessing IDE controller registers
*/
--
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