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5f49f63178
linux/drivers/ide
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Tejun Heo 5f49f63178 block: set rq->resid_len to blk_rq_bytes() on issue 
In commit c3a4d78c58, while introducing
rq->resid_len, the default value of residue count was changed from
full count to zero.  The conversion was done under the assumption that
when a request fails residue count wasn't defined.  However, Boaz and
James pointed out that this wasn't true and the residue count should
be preserved for failed requests too.

This patchset restores the original behavior by setting rq->resid_len
to blk_rq_bytes(rq) on request start and restoring explicit clearing
in affected drivers.  While at it, take advantage of the fact that
rq->resid_len is set to full count where applicable.

* ide-cd: rq->resid_len cleared on pc success

* mptsas: req->resid_len cleared on success

* sas_expander: rsp/req->resid_len cleared on success

* mpt2sas_transport: req->resid_len cleared on success

* ide-cd, ide-tape, mptsas, sas_host_smp, mpt2sas_transport, ub: take
  advantage of initial full count to simplify code

Boaz Harrosh spotted bug in resid_len initialization.  Fixed as
suggested.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Borislav Petkov <petkovbb@googlemail.com>
Cc: Boaz Harrosh <bharrosh@panasas.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Eric Moore <Eric.Moore@lsi.com>
Cc: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-05-19 11:36:08 +02:00
..
aec62xx.c ide: fix ->init_chipset method to return 'int' value 2009-03-24 23:22:53 +01:00
ali14xx.c ide: remove useless subdirs from drivers/ide/ 2008-10-21 20:57:23 +02:00
alim15x3.c ide: add ->dma_check method 2009-03-31 20:15:21 +02:00
amd74xx.c ide: fix ->init_chipset method to return 'int' value 2009-03-24 23:22:53 +01:00
at91_ide.c at91_ide: turn on PIO 6 support 2009-04-08 14:13:04 +02:00
atiixp.c ide: remove no longer needed IDE_HFLAG[_FORCE]_LEGACY_IRQS 2009-03-24 23:22:52 +01:00
au1xxx-ide.c ide: turn selectproc() method into dev_select() method (take 5) 2009-03-31 20:15:32 +02:00
buddha.c ide: allow host drivers to specify IRQ flags 2009-03-27 12:46:27 +01:00
cmd64x.c ide: set/clear drive->waiting_for_dma flag in the core code 2009-03-31 20:15:22 +02:00
cmd640.c cmd640: use ide_get_pair_dev() helper 2009-01-06 17:20:55 +01:00
cs5520.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
cs5530.c ide: identify data word 53 bit 1 doesn't cover words 62 and 63 (take 3) 2009-03-31 20:15:27 +02:00
cs5535.c ide: remove useless subdirs from drivers/ide/ 2008-10-21 20:57:23 +02:00
cs5536.c cs5536: define dma_sff_read_status() method 2009-04-18 17:42:20 +02:00
cy82c693.c ide: remove HWIF() macro 2009-01-06 17:20:52 +01:00
delkin_cb.c ide: allow host drivers to specify IRQ flags 2009-03-27 12:46:27 +01:00
dtc2278.c ide: add IDE_HFLAG_DTC2278 host flag 2009-03-27 12:46:28 +01:00
falconide.c ide: falconide/q40ide - Use __ide_mm_{in,out}sw() for data 2009-04-08 14:12:48 +02:00
gayle.c ide: remove CONFIG_BLK_DEV_IDEDOUBLER config option 2009-03-31 20:15:26 +02:00
hpt366.c hpt366: use ATA_DMA_* constants 2009-04-18 17:42:19 +02:00
ht6560b.c ide: turn selectproc() method into dev_select() method (take 5) 2009-03-31 20:15:32 +02:00
icside.c ide: set/clear drive->waiting_for_dma flag in the core code 2009-03-31 20:15:22 +02:00
ide_platform.c ide: remove useless subdirs from drivers/ide/ 2008-10-21 20:57:23 +02:00
ide-4drives.c ide: add IDE_HFLAG_4DRIVES host flag 2009-03-27 12:46:28 +01:00
ide-acpi.c ide: simplify 'struct ide_taskfile' 2009-04-08 14:13:02 +02:00
ide-atapi.c block: implement and enforce request peek/start/fetch 2009-05-11 09:52:18 +02:00
ide-cd_ioctl.c ide: remove IDE_AFLAG_NO_DOORLOCKING 2008-10-17 18:09:11 +02:00
ide-cd_verbose.c block: replace sizeof(rq->cmd) with BLK_MAX_CDB 2008-04-29 14:48:55 +02:00
ide-cd.c block: set rq->resid_len to blk_rq_bytes() on issue 2009-05-19 11:36:08 +02:00
ide-cd.h ide-cd: convert to using generic sense request 2009-04-28 07:37:30 +02:00
ide-cs.c ide: allow host drivers to specify IRQ flags 2009-03-27 12:46:27 +01:00
ide-devsets.c ide: remove ide_end_request() 2009-03-27 12:46:45 +01:00
ide-disk_ioctl.c [PATCH] switch ide_disk_ops ->ioctl() to sane prototype 2008-10-21 07:47:30 -04:00
ide-disk_proc.c ide: replace IDE_TFLAG_* flags by IDE_VALID_* 2009-04-08 14:13:01 +02:00
ide-disk.c ide: convert to rq pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
ide-disk.h [PATCH] switch ide_disk_ops ->ioctl() to sane prototype 2008-10-21 07:47:30 -04:00
ide-dma-sff.c ide: remove wmb() from ide-dma-sff.c and scc_pata.c 2009-04-08 14:12:49 +02:00
ide-dma.c ide: convert to rq pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
ide-eh.c ide: inline SELECT_DRIVE() 2009-03-31 20:15:33 +02:00
ide-floppy_ioctl.c ide: decrease size of ->pc_buf field in struct ide_atapi_pc 2009-03-31 20:15:25 +02:00
ide-floppy_proc.c ide: NULL noise: drivers/ide/ide-*.c 2009-03-05 16:10:56 +01:00
ide-floppy.c ide: cleanup rq->data_len usages 2009-05-11 09:50:55 +02:00
ide-floppy.h [PATCH] switch ide_disk_ops ->ioctl() to sane prototype 2008-10-21 07:47:30 -04:00
ide-gd.c ide: Stop disks on reboot for laptop which cuts power 2009-04-22 20:33:41 +02:00
ide-gd.h ide: move ->failed_pc to ide_drive_t 2009-03-27 12:46:34 +01:00
ide-generic.c ide: merge ide_arm and ide_generic host drivers 2009-03-31 20:15:24 +02:00
ide-h8300.c ide-h8300: remove custom tf_{read|load}() methods 2009-04-08 14:12:51 +02:00
ide-io-std.c ide: refactor tf_read() method 2009-04-08 14:13:03 +02:00
ide-io.c block: implement and enforce request peek/start/fetch 2009-05-11 09:52:18 +02:00
ide-ioctls.c ide: don't set REQ_SOFTBARRIER 2009-04-28 07:37:28 +02:00
ide-iops.c ide: refactor tf_read() method 2009-04-08 14:13:03 +02:00
ide-legacy.c ide: move legacy ISA/VLB ports handling to ide-legacy.c (v2) 2008-12-29 20:27:37 +01:00
ide-lib.c ide: convert to rq pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
ide-park.c ide: use blk_run_queue() instead of blk_start_queueing() 2009-04-28 07:37:28 +02:00
ide-pci-generic.c ide: remove no longer needed IDE_HFLAG[_FORCE]_LEGACY_IRQS 2009-03-24 23:22:52 +01:00
ide-pio-blacklist.c ide: move PIO blacklist to ide-pio-blacklist.c 2008-07-16 20:33:39 +02:00
ide-pm.c ide-pm: don't abuse rq->data 2009-04-28 07:37:30 +02:00
ide-pnp.c ide-pnp: use struct ide_port_info 2009-03-27 12:46:18 +01:00
ide-probe.c ide: refactor tf_read() method 2009-04-08 14:13:03 +02:00
ide-proc.c ide: replace IDE_TFLAG_* flags by IDE_VALID_* 2009-04-08 14:13:01 +02:00
ide-scan-pci.c ide: replace remaining __FUNCTION__ occurrences 2008-04-26 22:25:20 +02:00
ide-sysfs.c ide: move sysfs support to ide-sysfs.c 2009-01-02 16:12:48 +01:00
ide-tape.c block: set rq->resid_len to blk_rq_bytes() on issue 2009-05-19 11:36:08 +02:00
ide-taskfile.c ide: convert to rq pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
ide-timings.c ide: add support for CFA specified transfer modes (take 3) 2009-03-31 20:15:28 +02:00
ide-xfer-mode.c ide: add support for CFA specified transfer modes (take 3) 2009-03-31 20:15:28 +02:00
ide.c ide: move device settings code to ide-devsets.c 2009-03-24 23:22:44 +01:00
it821x.c ide: add ->dma_clear method and remove ->dma_timeout one 2009-03-31 20:15:19 +02:00
it8172.c Resurrect IT8172 IDE controller driver 2009-01-06 17:21:01 +01:00
it8213.c ide: remove HWIF() macro 2009-01-06 17:20:52 +01:00
jmicron.c ide: Switch to a common address 2008-11-02 21:40:08 +01:00
Kconfig ide: be able to build pmac driver without IDE built-in 2009-03-31 20:15:34 +02:00
macide.c ide: allow host drivers to specify IRQ flags 2009-03-27 12:46:27 +01:00
Makefile ide: merge ide_arm and ide_generic host drivers 2009-03-31 20:15:24 +02:00
ns87415.c ide: refactor tf_read() method 2009-04-08 14:13:03 +02:00
opti621.c ide: remove useless subdirs from drivers/ide/ 2008-10-21 20:57:23 +02:00
palm_bk3710.c palm_bk3710: palm_bk3710_udmatimings[] CodingStyle fixup 2009-04-23 22:53:45 +02:00
pdc202xx_new.c ide: fix ->init_chipset method to return 'int' value 2009-03-24 23:22:53 +01:00
pdc202xx_old.c ide: convert to rq pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
piix.c ide: fix ->init_chipset method to return 'int' value 2009-03-24 23:22:53 +01:00
pmac.c ide: Remove void casts 2009-04-18 17:42:19 +02:00
q40ide.c ide: falconide/q40ide - Use __ide_mm_{in,out}sw() for data 2009-04-08 14:12:48 +02:00
qd65xx.c ide: turn selectproc() method into dev_select() method (take 5) 2009-03-31 20:15:32 +02:00
qd65xx.h Fix my email address in qd65xx.[ch]/pata_qdi.c 2009-02-03 16:53:56 -08:00
rapide.c arm ide breakage 2008-10-26 09:35:05 -07:00
rz1000.c rz1000: apply chipset quirks early (v2) 2008-12-29 20:27:33 +01:00
sc1200.c ide: identify data word 53 bit 1 doesn't cover words 62 and 63 (take 3) 2009-03-31 20:15:27 +02:00
scc_pata.c ide: refactor tf_read() method 2009-04-08 14:13:03 +02:00
serverworks.c ide: fix ->init_chipset method to return 'int' value 2009-03-24 23:22:53 +01:00
setup-pci.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
sgiioc4.c ide: turn selectproc() method into dev_select() method (take 5) 2009-03-31 20:15:32 +02:00
siimage.c ide: add ->dma_clear method and remove ->dma_timeout one 2009-03-31 20:15:19 +02:00
sis5513.c ide: fix ->init_chipset method to return 'int' value 2009-03-24 23:22:53 +01:00
sl82c105.c ide: add support for CFA specified transfer modes (take 3) 2009-03-31 20:15:28 +02:00
slc90e66.c ide: remove no longer needed IDE_HFLAG[_FORCE]_LEGACY_IRQS 2009-03-24 23:22:52 +01:00
tc86c001.c ide: convert to rq pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
triflex.c ide: remove HWIF() macro 2009-01-06 17:20:52 +01:00
trm290.c ide: turn selectproc() method into dev_select() method (take 5) 2009-03-31 20:15:32 +02:00
tx4938ide.c tx493[89]ide: Remove big endian version of tx493[89]ide_tf_{load,read} 2009-04-08 14:12:52 +02:00
tx4939ide.c ide: convert to rq pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
umc8672.c ide: merge ide_hwgroup_t with ide_hwif_t (v2) 2009-01-06 17:20:50 +01:00
via82cxxx.c ide: fix ->init_chipset method to return 'int' value 2009-03-24 23:22:53 +01:00