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Date: Tue, 23 Jun 2009 23:27:27 +0200
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: David Miller <davem@...emloft.net>
Cc: linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [patch 3/6] ide: always kill the whole request on error
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: [PATCH] ide: always kill the whole request on error
* Use blk_rq_bytes() instead of obsolete ide_rq_bytes() in ide_kill_rq()
and ide_floppy_do_request() for failed requests.
[ bugfix part ]
* Use blk_rq_bytes() instead of obsolete ide_rq_bytes() in ide_do_devset()
and ide_complete_drive_reset(). Then remove ide_rq_bytes().
[ cleanup part ]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
'cleanup part' tested, limited testing with 'bugfix part'
(using simulated failures of disk fs requests)
drivers/ide/ide-devsets.c | 2 +-
drivers/ide/ide-eh.c | 2 +-
drivers/ide/ide-floppy.c | 2 +-
drivers/ide/ide-io.c | 14 ++------------
include/linux/ide.h | 1 -
5 files changed, 5 insertions(+), 16 deletions(-)
Index: b/drivers/ide/ide-devsets.c
===================================================================
--- a/drivers/ide/ide-devsets.c
+++ b/drivers/ide/ide-devsets.c
@@ -183,6 +183,6 @@ ide_startstop_t ide_do_devset(ide_drive_
err = setfunc(drive, *(int *)&rq->cmd[1]);
if (err)
rq->errors = err;
- ide_complete_rq(drive, err, ide_rq_bytes(rq));
+ ide_complete_rq(drive, err, blk_rq_bytes(rq));
return ide_stopped;
}
Index: b/drivers/ide/ide-eh.c
===================================================================
--- a/drivers/ide/ide-eh.c
+++ b/drivers/ide/ide-eh.c
@@ -149,7 +149,7 @@ static inline void ide_complete_drive_re
if (rq && blk_special_request(rq) && rq->cmd[0] == REQ_DRIVE_RESET) {
if (err <= 0 && rq->errors == 0)
rq->errors = -EIO;
- ide_complete_rq(drive, err ? err : 0, ide_rq_bytes(rq));
+ ide_complete_rq(drive, err ? err : 0, blk_rq_bytes(rq));
}
}
Index: b/drivers/ide/ide-floppy.c
===================================================================
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -293,7 +293,7 @@ out_end:
drive->failed_pc = NULL;
if (blk_fs_request(rq) == 0 && rq->errors == 0)
rq->errors = -EIO;
- ide_complete_rq(drive, -EIO, ide_rq_bytes(rq));
+ ide_complete_rq(drive, -EIO, blk_rq_bytes(rq));
return ide_stopped;
}
Index: b/drivers/ide/ide-io.c
===================================================================
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -112,16 +112,6 @@ void ide_complete_cmd(ide_drive_t *drive
}
}
-/* obsolete, blk_rq_bytes() should be used instead */
-unsigned int ide_rq_bytes(struct request *rq)
-{
- if (blk_pc_request(rq))
- return blk_rq_bytes(rq);
- else
- return blk_rq_cur_sectors(rq) << 9;
-}
-EXPORT_SYMBOL_GPL(ide_rq_bytes);
-
int ide_complete_rq(ide_drive_t *drive, int error, unsigned int nr_bytes)
{
ide_hwif_t *hwif = drive->hwif;
@@ -152,14 +142,14 @@ void ide_kill_rq(ide_drive_t *drive, str
if ((media == ide_floppy || media == ide_tape) && drv_req) {
rq->errors = 0;
- ide_complete_rq(drive, -EIO, blk_rq_bytes(rq));
} else {
if (media == ide_tape)
rq->errors = IDE_DRV_ERROR_GENERAL;
else if (blk_fs_request(rq) == 0 && rq->errors == 0)
rq->errors = -EIO;
- ide_complete_rq(drive, -EIO, ide_rq_bytes(rq));
}
+
+ ide_complete_rq(drive, -EIO, blk_rq_bytes(rq));
}
static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf)
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1062,7 +1062,6 @@ int generic_ide_ioctl(ide_drive_t *, str
extern int ide_vlb_clk;
extern int ide_pci_clk;
-unsigned int ide_rq_bytes(struct request *);
int ide_end_rq(ide_drive_t *, struct request *, int, unsigned int);
void ide_kill_rq(ide_drive_t *, struct request *);
--
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