Hi Boaz,
On Tue, 04 Dec 2007 15:39:12 +0200, Boaz Harrosh <[EMAIL PROTECTED]> wrote:
> On Sat, Dec 01 2007 at 1:35 +0200, Kiyoshi Ueda <[EMAIL PROTECTED]> wrote:
> > This patch converts bidi of scsi mid-layer to use blk_end_request().
> >
> > rq->next_r
27; branch of your linux-2.6-block.git.
Please review and apply.
Thanks,
Kiyoshi Ueda
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Please r
;t change.
Cc: Rusty Russell <[EMAIL PROTECTED]>
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/virtio_blk.c | 10 +-
1 files changed, 5 insertions(+),
This patch removes end_queued_request() and end_dequeued_request(),
which are no longer used.
As a results, users of __end_request() became only end_request().
So the actual code in __end_request() is moved to end_request()
and __end_request() is removed.
Signed-off-by: Kiyoshi Ueda <[EM
empty(&rq->queuelist))
blkdev_dequeue_request(rq);
In the case of elv_next_request(), blkdev_dequeue_request() has not
been done and the queuelist isn't empty.
So __blk_end_request() calls blkdev_dequeue_request() and
the behavior of elv_next_request() doesn't change.
Signed-o
ce a NEW problem to ub.
I have investigated all code paths which call ub_end_rq() in ub.c,
and confirmed that ub_end_rq() is always called with the queue lock
held. (sc->lock is registered as a queue lock.)
So there is no such race in the current ub code.
You don't need to rewrite ub.
Th
2.6.24-git and send outputs?
--- linus-git.orig/drivers/ide/ide-cd.c 2008-01-29 10:04:51.0 -0500
+++ linus-git/drivers/ide/ide-cd.c 2008-01-29 21:00:19.0 -0500
@@ -1723,7 +1723,7 @@
if ((stat & DRQ_STAT) == 0) {
spin_lock_irqsave(&ide_lock, flags);
that the rq still has a bio even after DRQ_STAT is cleared.
The original ide-cd code was calling only end_that_request_last() there.
So I thought that the rq should have no bio when DRQ_STAT is cleared,
otherwise the bio leaks.
Was my understanding wrong and is that correct behavior in ide-cd?
T
his.
How about the case that other dm device is stacked on the dm device?
(e.g. dm-linear over dm-multipath over i2o with bounce_pfn=64GB, and
the multipath table is changed to i2o with bounce_pfn=1GB.)
With this example, the patch propagates the restriction of i2o
to dm-multipath
the patch would be very helpful because I have
no hardware for those device drivers. (I have done only build test.)
If it causes problems, some tricky work may be needed to skip
"__end_that_request_first" in "blk_end_request".
Thanks,
Kiyoshi Ueda
Signed-off-by: Kiyoshi Ueda <[EMAIL PRO
patch-set is attached as appendix,
although it still needs some work and isn't ready for review.
It checks error of a request and retries the request using other paths
if error is detected, before completing bios in the request.
(See clone_end_request() in appendix#1.)
Thanks,
Kiyoshi Ueda
-
This patch adds macros to get the size of request in bytes.
They are useful because blk_end_request() takes bytes
as a completed I/O size instead of sectors.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
blkdev.h |9 +
_blk_end_request()
spin_unlock_irqsave()
c) end_that_request_last()
=> __blk_end_request()
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
arch/arm/plat-omap/mailbox.c|9 ++---
arch/um/drivers/ubd_kern.c
tion
inbetween.
So we can just follow the standard conversion rule (a) mentioned in
the patch subject "[PATCH 3/7] blk_end_request: changing "normal" drivers".
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
-
: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
block/ll_rw_blk.c | 47 +++--
drivers/ide/ide-cd.c | 78
++--- include/linux/blkdev.h |3
+
3 files changed, 108
This patch removes the following functions:
o end_that_request_first()
o end_that_request_chunk()
and stops exporting the functions below:
o end_that_request_last()
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
can be used as the callback.
o Set the new end_io handler to rq->end_io.
scsi_transport_sas.c:sas_smp_request() seems expecting the request
is bsg and rq->end_io() is bsg_rq_end_io().
So changed to call it directly.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-
n't support it,
# so please update userspace tools first when you try this.
# (If kernel was updated first, you would hit kernel panic.)
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
block/ll_rw_blk.c |
This patch converts dm-multipath target driver to request-based.
Request-based dm itself is still under development and not ready
for inclusion.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
dm-m
This patch adds dynamic load balancer to request-based dm-multipath.
Request-based dm itself is still under development and not ready
for inclusion.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/md/Makefile
ed dm device.
If you use multipath-tools (another patch), multipath-tools should
take care of all.
This patch should be applied on top of CVS device-mapper-1.02.23
of 8/28/2007.
Request-based dm itself is still under development and not ready
for inclusion.
Signed-off-by: Kiyoshi Ueda &l
add_disk_randomness()
o blk_queue_end_tag()
o blkdev_dequeue_request()
These are called in the blk_end_request() as a part of generic
request completion.
So all device drivers become to call above functions.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nom
This patch changes multipath-tools to use request-based dm-multipath.
This patch should be applied on top of 8/28/2007 git multipath-tools.
Request-based dm itself is still under development and not ready
for inclusion.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Ju
nt blk_end_request(rq, uptodate, nr_bytes) {
if (rq->end_io)
return rq->end_io(rq, uptodate, nr_bytes, 1);
if (end_that_request_first(rq, uptodate, nr_bytes))
}
-
Thanks,
Kiyoshi Ue
_callback(),
is added in the patch 5/7.
(http://marc.info/?l=linux-kernel&m=118860027714753&w=2)
Currently, only user of the interface is ide-cd (cdrom_newpc_intr()).
It needs to call only end_that_request_first() too.
With the patch 7/7, you can set your own handler in rq->end_io()
t
Hi Benny,
Thank you for the comments.
On Wed, 05 Sep 2007 10:45:54 +0300, Boaz Harrosh <[EMAIL PROTECTED]> wrote:
> On Sat, Sep 01 2007 at 1:42 +0300, Kiyoshi Ueda <[EMAIL PROTECTED]> wrote:
> > arch/arm/plat-omap/mailbox.c|9 ++---
> > arch/um/dri
_request_last().
There is no other transition to ACE_FSM_STATE_REQ_COMPLETE state.
Thanks,
Kiyoshi Ueda
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
--- 2.6.23-rc1-mm1/drivers/block/xsysace.c 2007-07-25 15:12:05.0
_request().
Do you think creating another function like blk_get_request_nowait()
is acceptable?
Or request should not be allocated in q->request_fn() anyway?
Do you have any other ideas?
> --
> Jens Axboe
Thanks,
Kiyoshi Ueda
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Please read the FAQ at http://www.tux.org/lkml/
Hi Jens,
Sorry for the less explanation.
On Wed, 20 Dec 2006 14:49:24 +0100, Jens Axboe <[EMAIL PROTECTED]> wrote:
> On Tue, Dec 19 2006, Kiyoshi Ueda wrote:
> > This patch adds new "end_io_first" hook in __end_that_request_first()
> > for request-based device-map
ould be to set aside some requests that you can get
> at without allocation (maintain a little freelist of manually allocated
> requests), and retrieve a free one from there when inside request_fn. If
> you run out, just bail out of request_fn and make sure to reinvoke it
> when some of your pr
Hi Jens,
OK, I understand that.
But I think that the block layer assumption (depending on "current")
is not ideal.
Anyway, thank you for the information.
Thanks,
Kiyoshi Ueda
On Thu, 21 Dec 2006 08:53:05 +0100, Jens Axboe <[EMAIL PROTECTED]> wrote:
> On Wed, Dec 20 2006,
)
error = !uptodate ? -EIO : uptodate;
.
if (error && (req->cmd_flags & "NEW_FLAG"))
return 0; /* Tell the driver to call end_that_request_last() */
total_types = bio_nbytes = 0;
while ((bio = req->bi
sets the new flag.
SCSI layer of an underlying device calls __end_that_request_first()
for a cloned request. And original bios which were issued to a dm
device will be completed through the cloned request when no error
occurs on the clone. When an error occurs, the completion process of
the
- When the cloned bio is returned, end_io hook function is called
and wait for finishing all splitted clones.
(This is like current clone_endio() implementation.)
So I think bio level splitting is better.
What do you think about?
======
.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
diff -rupN 2.6.19.1/block/ll_rw_blk.c
1-blk-get-request-irqrestore/block/ll_rw_blk.c
--- 2.6.19.1/block/ll_rw_blk.c 2006-12-11 14:32:53.0 -0500
+++ 1-blk-get-request
This patch adds new "end_io_first" hook in __end_that_request_first()
for request-based device-mapper.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
diff -rupN 1-blk-get-request-irqrestore/block/ll_rw_blk.
This patch changes the interface of dm_create() and alloc_dev()
so that the creator can specify whether the created device should
be hooked at bio-level or request-level.
Actual implementation of request-based initialization is done
in a separate patch.
Signed-off-by: Kiyoshi Ueda <[EM
This patch adds DM_REQUEST_BASE_FLAG ioctl for mapped device creation.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
diff -rupN 3-create-iface-change/drivers/md/dm.h 4-add-ioctl/drivers/md/dm.h
--- 3-create-iface-chang
27;t needed.
So struct dm_io and struct target_io in bio-based dm are merged into
struct rq_target_io, and it is attached to each clone.
As a result, md->io_pool isn't used in request-based dm.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL
rq_end_io if needed.
- rq_end_io : Free target internal data.
Also, struct dm_map_info is added to pass information between
dm_prep_map_fn() and dm_map_request_fn().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[E
Stop md->queue after flush at suspend time.
Start md->queue at resume time.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
diff -rupN 6-add-target-func/drivers/md/dm.c 7-rqbase-dm-core/drivers/md/dm.c
--- 6-add-target-
ath is determined there.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
diff -rupN 7-rqbase-dm-core/drivers/md/dm-hw-handler.h
8-rqbase-dm-mpath/drivers/md/dm-hw-handler.h
--- 7-rqbase-dm-core/drivers/md/dm-hw-handler.h 2006-1
This patch adds the feature to use the kernel request-based dm feature
to the device-mapper user-space tool.
For dmsetup:
# dmsetup --rqbase create
For library users:
int dm_task_request_base(struct dm_task *dmt);
This patch is for device-mapper-1.02.13.
diff -rupN dm-1.02.13/dmsetup/
. (See cdrom_newpc_intr() in PATCH#3)
If this is acceptable approach, I will break down, clean up and repost
the patch.
Thanks,
Kiyoshi Ueda
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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Please read the FAQ at http://www.tux.org/lkml/
Changing the role of ->end_io() of struct request to a full I/O
completion handler.
blk_end_request() is added as a helper function to call the full
completion handler from drivers and others.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <
Adding blk_end_io() as a full completion handler for I/Os other than
sync/barrier.
Completion handlers for sync/barrier I/Os are also updated to full
completion handler.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
This patch replaces caller's end_that_request_* to blk_end_request.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
block/elevator.c|3 -
block/ll_rw_blk.c | 26 +++-
right horrible. The callback should be correctly
> typed, pass down a request pointer ALWAYS.
OK. I think everything such callbacks need can be obtained through
struct request. (e.g. ide_drive_t can get by rq->q->queuedata and
ide_lock can get by rq->q->queue_lock.)
So I'll cha
w to hook all parts of request completion.
Existing users of rq->end_io() must be changed to do
all parts of request completion.
Thanks,
Kiyoshi Ueda
-
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the body of a message to [EMAIL PROTECTED]
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Please read the FAQ at http://www.tux.org/lkml/
This patch adds functions to get the size of request in bytes.
They are useful because blk_end_request() takes bytes
as a completed I/O size instead of sectors.
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
include/linu
This patch converts core parts of block layer to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
block/ll_rw_blk.c | 15 +--
1 files changed, 5 insertions(+), 10 deletions(-)
diff -rupN
sk_randomness(), blk_queue_end_tag(), blkdev_dequeue_request())
end_that_request_last()
spin_unlock_irqrestore()
=> spin_lock_irqsave()
__blk_end_request()
spin_unlock_irqsave()
c) end_that_request_last()
=> __blk_end_request()
Signed-off-by: Kiyoshi Ueda <[EM
This patch converts arm to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
arch/arm/plat-omap/mailbox.c |9 ++---
1 files changed, 6 insertions(+), 3 deletions(-)
diff -rupN 03-blkcore-calle
This patch converts um to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
arch/um/drivers/ubd_kern.c | 10 +-
1 files changed, 1 insertion(+), 9 deletions(-)
diff -rupN 04-arm-caller-chang
This patch converts DAC960 to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/DAC960.c |5 +
1 files changed, 1 insertion(+), 4 deletions(-)
diff -rupN 05-um-caller-change/drive
This patch converts floppy to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/floppy.c |8 +++-
1 files changed, 3 insertions(+), 5 deletions(-)
diff -rupN 06-dac960-caller-cha
This patch converts lguest to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/lguest_blk.c |5 +
1 files changed, 1 insertion(+), 4 deletions(-)
diff -rupN 07-floppy-caller-cha
This patch converts nbd to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/nbd.c |4 +---
1 files changed, 1 insertion(+), 3 deletions(-)
diff -rupN 08-lguest-caller-change/driver
This patch converts ps3disk to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/ps3disk.c |6 +-
1 files changed, 1 insertion(+), 5 deletions(-)
diff -rupN 09-nbd-caller-cha
This patch converts sunvdc to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/sunvdc.c |5 +
1 files changed, 1 insertion(+), 4 deletions(-)
diff -rupN 10-ps3disk-caller-cha
This patch converts sx8 to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/sx8.c |4 +---
1 files changed, 1 insertion(+), 3 deletions(-)
diff -rupN 11-sunvdc-caller-change/driver
This patch converts ub to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/ub.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff -rupN 12-sx8-caller-change/drivers/
This patch converts viodasd to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/viodasd.c |5 +
1 files changed, 1 insertion(+), 4 deletions(-)
diff -rupN 13-ub-caller-cha
This patch converts xen-blkfront to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/xen-blkfront.c |5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff -rupN 14-viod
This patch converts viocd to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/cdrom/viocd.c |5 +
1 files changed, 1 insertion(+), 4 deletions(-)
diff -rupN 15-xen-caller-change/driv
This patch converts i2o_block to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/message/i2o/i2o_block.c |8 ++--
1 files changed, 2 insertions(+), 6 deletions(-)
diff -rupN 16-vi
This patch converts mmc to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/mmc/card/block.c | 24 +---
drivers/mmc/card/queue.c |4 ++--
2 files changed, 7 insertions
This patch converts s390 to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/s390/block/dasd.c |4 +---
drivers/s390/char/tape_block.c |3 +--
2 files changed, 2 insertions(+), 5 d
This patch converts scsi mid-layer to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/scsi/scsi_lib.c | 13 ++---
1 files changed, 2 insertions(+), 11 deletions(-)
diff -rupN 19-s
This patch converts ide-scsi to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/scsi/ide-scsi.c |8
1 files changed, 4 insertions(+), 4 deletions(-)
diff -rupN 20-scsi-mid-call
Q_COMPLETE, respectively.)
However, those states are consecutive and without any interruption
inbetween.
So we can just follow the standard conversion rule (b) mentioned in
the patch subject "[PATCH 01/27] blk_end_request: add new request
completion interface".
Signed-off-by: Kiyoshi Ue
add new request completion interface".
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/cpqarray.c | 28 ++--
1 files changed, 2 insertions(+), 26 deletions(-)
diff -rupN 23-cciss-calle
uest completion interface".
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/block/cciss.c | 26 +++---
1 files changed, 3 insertions(+), 23 deletions(-)
diff -rupN 22-xsysace-caller-change/drivers/
This patch converts "normal" parts of ide to use blk_end_request().
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
drivers/ide/ide-cd.c |6 +++---
drivers/ide/ide-io.c | 22 +++---
2 files ch
This patch removes the following functions:
o end_that_request_first()
o end_that_request_chunk()
and stops exporting the functions below:
o end_that_request_last()
Signed-off-by: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
: Kiyoshi Ueda <[EMAIL PROTECTED]>
Signed-off-by: Jun'ichi Nomura <[EMAIL PROTECTED]>
---
block/ll_rw_blk.c | 54 +
drivers/ide/ide-cd.c | 78 ++--
include/linux/blkdev.h |3 +
3 files change
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