#
90f0094d |
| 07-Mar-2006 |
Horst Hummel <horst.hummel@de.ibm.com> |
[PATCH] s390: dasd partition detection
DASD allows to open a device as soon as gendisk is registered, which means the device is a fake device (capacity=0) and we do know nothing about blocksize and
[PATCH] s390: dasd partition detection
DASD allows to open a device as soon as gendisk is registered, which means the device is a fake device (capacity=0) and we do know nothing about blocksize and partitions at that point of time. In case the device is opened by someone, the bdev and inode creation is done with the fake device info and the following partition detection code is just using the wrong data.
To avoid this modify the DASD state machine to make sure that the open is rejected until the device analysis is either finished or an unformatted device was detected.
Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
49d9c81a |
| 20-Feb-2006 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[PATCH] s390: revert dasd eer module
Revert dasd eer module until we have a common understanding of how the interface should be.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off
[PATCH] s390: revert dasd eer module
Revert dasd eer module until we have a common understanding of how the interface should be.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
aa88861f |
| 20-Feb-2006 |
Peter Oberparleiter <peter.oberparleiter@de.ibm.com> |
[PATCH] s390: dasd reference counting
When using the dasd diag discipline, the base discipline module (eckd or fba) can be unloaded, even though the dasd driver requires both discipline modules (bas
[PATCH] s390: dasd reference counting
When using the dasd diag discipline, the base discipline module (eckd or fba) can be unloaded, even though the dasd driver requires both discipline modules (base and diag) to work correctly.
Implement reference counting for both base and diag discipline modules in order to fix this.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
12c3a548 |
| 03-Feb-2006 |
Stefan Weinhuber <wein@de.ibm.com> |
[PATCH] s390: dasd extended error reporting module
The DASD extended error reporting is a facility that allows to get detailed information about certain problems in the DASD I/O. This information c
[PATCH] s390: dasd extended error reporting module
The DASD extended error reporting is a facility that allows to get detailed information about certain problems in the DASD I/O. This information can be used to implement fail-over applications that can recover these problems.
Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
c2ba444d |
| 01-Feb-2006 |
Horst Hummel <horst.hummel@de.ibm.com> |
[PATCH] s390: dasd wait for clear i/o interrupt
The sleep_on function clears a running cqr without waiting for the related interrupt. This can lead to a panic at the time the interrupt is processed
[PATCH] s390: dasd wait for clear i/o interrupt
The sleep_on function clears a running cqr without waiting for the related interrupt. This can lead to a panic at the time the interrupt is processed because the related memory might already be freed. Wait for clear-interrupt and de-queue cqr prior to return.
Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
e018ba1f |
| 01-Feb-2006 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[PATCH] s390: Remove CVS generated information
- Remove all CVS generated information like e.g. revision IDs from drivers/s390 and include/asm-s390 (none present in arch/s390).
- Add newline at e
[PATCH] s390: Remove CVS generated information
- Remove all CVS generated information like e.g. revision IDs from drivers/s390 and include/asm-s390 (none present in arch/s390).
- Add newline at end of arch/s390/lib/Makefile to avoid diff message.
Acked-by: Andreas Herrmann <aherrman@de.ibm.com> Acked-by: Frank Pavlic <pavlic@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
ed68cb36 |
| 14-Jan-2006 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[PATCH] s390: fix blk_queue_ordered call in dasd.c fixup
The QUEUE_ORDERED_* numbers got renumbered and by accident the dasd driver was changed to use QUEUE_ORDERED_DRAIN instead of QUEUE_ORDERED_TA
[PATCH] s390: fix blk_queue_ordered call in dasd.c fixup
The QUEUE_ORDERED_* numbers got renumbered and by accident the dasd driver was changed to use QUEUE_ORDERED_DRAIN instead of QUEUE_ORDERED_TAG.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
bcc13265 |
| 14-Jan-2006 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
[PATCH] s390: fix blk_queue_ordered call in dasdc
Add the missing third argument to the blk_queue_ordered call and use the constant QUEUE_ORDERED_DRAIN instead of "1".
Signed-off-by: Martin Schwide
[PATCH] s390: fix blk_queue_ordered call in dasdc
Add the missing third argument to the blk_queue_ordered call and use the constant QUEUE_ORDERED_DRAIN instead of "1".
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
8262037f |
| 09-Jan-2006 |
Christoph Hellwig <hch@lst.de> |
[PATCH] add ->compat_ioctl to dasd
Add a compat_ioctl method to the dasd driver so the last entries in arch/s390/kernel/compat_ioctl.c can go away. Unlike the previous attempt this one does not rep
[PATCH] add ->compat_ioctl to dasd
Add a compat_ioctl method to the dasd driver so the last entries in arch/s390/kernel/compat_ioctl.c can go away. Unlike the previous attempt this one does not replace the ioctl method with an unlocked_ioctl method so that the ioctl_by_bdev calls in s390 partition code continue to work.
Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
a885c8c4 |
| 08-Jan-2006 |
Christoph Hellwig <hch@lst.de> |
[PATCH] Add block_device_operations.getgeo block device method
HDIO_GETGEO is implemented in most block drivers, and all of them have to duplicate the code to copy the structure to userspace, as wel
[PATCH] Add block_device_operations.getgeo block device method
HDIO_GETGEO is implemented in most block drivers, and all of them have to duplicate the code to copy the structure to userspace, as well as getting the start sector. This patch moves that to common code [1] and adds a ->getgeo method to fill out the raw kernel hd_geometry structure. For many drivers this means ->ioctl can go away now.
[1] the s390 block drivers are odd in this respect. xpram sets ->start to 4 always which seems more than odd, and the dasd driver shifts the start offset around, probably because of it's non-standard sector size.
Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Jens Axboe <axboe@suse.de> Cc: <mike.miller@hp.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Paolo Giarrusso <blaisorblade@yahoo.it> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Markus Lidel <Markus.Lidel@shadowconnect.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
347a8dc3 |
| 06-Jan-2006 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
[PATCH] s390: cleanup Kconfig
Sanitize some s390 Kconfig options. We have ARCH_S390, ARCH_S390X, ARCH_S390_31, 64BIT, S390_SUPPORT and COMPAT. Replace these 6 options by S390, 64BIT and COMPAT.
S
[PATCH] s390: cleanup Kconfig
Sanitize some s390 Kconfig options. We have ARCH_S390, ARCH_S390X, ARCH_S390_31, 64BIT, S390_SUPPORT and COMPAT. Replace these 6 options by S390, 64BIT and COMPAT.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
1c01b8a5 |
| 06-Jan-2006 |
Horst Hummel <horst.hummel@de.ibm.com> |
[PATCH] s390: dasd failfast support
To properly support multipath-failover handling, the linux block layer has introduced a special request flag, 'REQ_FAILFAST'. This flag is now used to return req
[PATCH] s390: dasd failfast support
To properly support multipath-failover handling, the linux block layer has introduced a special request flag, 'REQ_FAILFAST'. This flag is now used to return requests immediately in case the device is not operational.
Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
973bd993 |
| 06-Jan-2006 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
[PATCH] s390: atomic primitives
Hugh Dickins <hugh@veritas.com>
Fix the broken atomic_cmpxchg primitive. Add atomic_sub_and_test, atomic64_sub_return, atomic64_sub_and_test, atomic64_cmpxchg
[PATCH] s390: atomic primitives
Hugh Dickins <hugh@veritas.com>
Fix the broken atomic_cmpxchg primitive. Add atomic_sub_and_test, atomic64_sub_return, atomic64_sub_and_test, atomic64_cmpxchg, atomic64_add_unless and atomic64_inc_not_zero. Replace old style atomic_compare_and_swap by atomic_cmpxchg. Shorten the whole header by defining most primitives with the two inline functions atomic_add_return and atomic_sub_return.
In addition this patch contains the s390 related fixes of Hugh's "mm: fill arch atomic64 gaps" patch.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
8ffdc655 |
| 06-Jan-2006 |
Tejun Heo <htejun@gmail.com> |
[BLOCK] add @uptodate to end_that_request_last() and @error to rq_end_io_fn()
add @uptodate argument to end_that_request_last() and @error to rq_end_io_fn(). there's no generic way to pass error co
[BLOCK] add @uptodate to end_that_request_last() and @error to rq_end_io_fn()
add @uptodate argument to end_that_request_last() and @error to rq_end_io_fn(). there's no generic way to pass error code to request completion function, making generic error handling of non-fs request difficult (rq->errors is driver-specific and each driver uses it differently). this patch adds @uptodate to end_that_request_last() and @error to rq_end_io_fn().
for fs requests, this doesn't really matter, so just using the same uptodate argument used in the last call to end_that_request_first() should suffice. imho, this can also help the generic command-carrying request jens is working on.
Signed-off-by: tejun heo <htejun@gmail.com> Signed-Off-By: Jens Axboe <axboe@suse.de>
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#
17fd682e |
| 07-Nov-2005 |
Jesper Juhl <jesper.juhl@gmail.com> |
[PATCH] kfree cleanup: drivers/s390
This is the drivers/s390/ part of the big kfree cleanup patch.
Remove pointless checks for NULL prior to calling kfree() in drivers/s390/.
Signed-off-by: Jesper
[PATCH] kfree cleanup: drivers/s390
This is the drivers/s390/ part of the big kfree cleanup patch.
Remove pointless checks for NULL prior to calling kfree() in drivers/s390/.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Acked-by: Cornelia Huck <cohuck@de.ibm.com> Acked-by: Stefan Bader <Stefan.Bader@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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|
#
c6eb7b77 |
| 03-Sep-2005 |
Horst Hummel <horst.hummel@de.ibm.com> |
[PATCH] s390: deadlock in dasd_devmap
Reintroduce a read-only copy of the devmap features in the device struct. This is necessary to solve a deadlock on the dasd_devmap_lock which is acquired by das
[PATCH] s390: deadlock in dasd_devmap
Reintroduce a read-only copy of the devmap features in the device struct. This is necessary to solve a deadlock on the dasd_devmap_lock which is acquired by dasd_get_features called from the dasd tasklet. The current implementation of devmap doesn't allow to call any devmap function from interrupt or softirq context.
Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
6bb0e010 |
| 27-Jul-2005 |
Horst Hummel <horst.hummel@de.ibm.com> |
[PATCH] s390: free dasd slab cache
Free dasd slab cache on module unload.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linu
[PATCH] s390: free dasd slab cache
Free dasd slab cache on module unload.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
66a464db |
| 25-Jun-2005 |
Michael Holzheu <holzheu@de.ibm.com> |
[PATCH] s390: debug feature changes
This patch changes the memory allocation method for the s390 debug feature. Trace buffers had been allocated using the get_free_pages() function before. Therefore
[PATCH] s390: debug feature changes
This patch changes the memory allocation method for the s390 debug feature. Trace buffers had been allocated using the get_free_pages() function before. Therefore it was not possible to get big memory areas in a running system due to memory fragmentation. Now the trace buffers are subdivided into several subbuffers with pagesize. Therefore it is now possible to allocate more memory for the trace buffers and more trace records can be written.
In addition to that, dynamic specification of the size of the trace buffers is implemented. It is now possible to change the size of a trace buffer using a new debugfs file instance. When writing a number into this file, the trace buffer size is changed to 'number * pagesize'.
In the past all the traces could be obtained from userspace by accessing files in the "proc" filesystem. Now with debugfs we have a new filesystem which should be used for debugging purposes. This patch moves the debug feature from procfs to debugfs.
Since the interface of debug_register() changed, all device drivers, which use the debug feature had to be adjusted.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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|
#
c551288e |
| 25-Jun-2005 |
Cornelia Huck <cohuck@de.ibm.com> |
[PATCH] s/390: use klist in dasd driver
Convert the dasd driver to use the new klist interface.
Signed-off-by: Cornelia Huck <cohuck@de.ibm.com> Cc: Greg KH <greg@kroah.com> Cc: Martin Schwidefsky
[PATCH] s/390: use klist in dasd driver
Convert the dasd driver to use the new klist interface.
Signed-off-by: Cornelia Huck <cohuck@de.ibm.com> Cc: Greg KH <greg@kroah.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Revision tags: v2.6.12, v2.6.12-rc6, v2.6.12-rc5 |
|
#
59afda78 |
| 16-May-2005 |
Horst Hummel <horst.hummel@de.ibm.com> |
[PATCH] s390: dasd set online failure
dasd driver changes: - The feature check in dasd_generic_online returns an error if the devmap entry for the device is not yet available. Check for the f
[PATCH] s390: dasd set online failure
dasd driver changes: - The feature check in dasd_generic_online returns an error if the devmap entry for the device is not yet available. Check for the feature after the device has been created. - Do symmetric registration/deregistration of cdev->handler.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Revision tags: v2.6.12-rc4 |
|
#
6ed93c82 |
| 01-May-2005 |
Stefan Weinhuber <wein@de.ibm.com> |
[PATCH] s390: enable write barriers in the dasd driver
The DASD device driver never reorders the I/O requests and relies on the hardware to write all data to nonvolatile storage before signaling a s
[PATCH] s390: enable write barriers in the dasd driver
The DASD device driver never reorders the I/O requests and relies on the hardware to write all data to nonvolatile storage before signaling a successful write. Hence, the only thing we have to do to support write barriers is to set the queue ordered flag.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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|
#
f24acd45 |
| 01-May-2005 |
Horst Hummel <horst.hummel@de.ibm.com> |
[PATCH] s390: dasd readonly attribute
The independent read-only flags in devmap, dasd_device and gendisk are not kept in sync. Use one bit per feature in the dasd driver and keep that bit in sync w
[PATCH] s390: dasd readonly attribute
The independent read-only flags in devmap, dasd_device and gendisk are not kept in sync. Use one bit per feature in the dasd driver and keep that bit in sync with the gendisk bit.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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|
Revision tags: v2.6.12-rc3, v2.6.12-rc2 |
|
#
1da177e4 |
| 16-Apr-2005 |
Linus Torvalds <torvalds@ppc970.osdl.org> |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it.
Let it rip!
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|
#
08bccd72 |
| 05-Mar-2021 |
Stefan Haberland <sth@linux.ibm.com> |
s390/dasd: fix hanging IO request during DASD driver unbind commit 66f669a272898feb1c69b770e1504aa2ec7723d1 upstream. Prevent that an IO request is build during device shutdown init
s390/dasd: fix hanging IO request during DASD driver unbind commit 66f669a272898feb1c69b770e1504aa2ec7723d1 upstream. Prevent that an IO request is build during device shutdown initiated by a driver unbind. This request will never be able to be processed or canceled and will hang forever. This will lead also to a hanging unbind. Fix by checking not only if the device is in READY state but also check that there is no device offline initiated before building a new IO request. Fixes: e443343e509a ("s390/dasd: blk-mq conversion") Cc: <stable@vger.kernel.org> # v4.14+ Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Tested-by: Bjoern Walk <bwalk@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
5d766455 |
| 05-Mar-2021 |
Stefan Haberland <sth@linux.ibm.com> |
s390/dasd: fix hanging DASD driver unbind commit 7d365bd0bff3c0310c39ebaffc9a8458e036d666 upstream. In case of an unbind of the DASD device driver the function dasd_generic_remo
s390/dasd: fix hanging DASD driver unbind commit 7d365bd0bff3c0310c39ebaffc9a8458e036d666 upstream. In case of an unbind of the DASD device driver the function dasd_generic_remove() is called which shuts down the device. Among others this functions removes the int_handler from the cdev. During shutdown the device cancels all outstanding IO requests and waits for completion of the clear request. Unfortunately the clear interrupt will never be received when there is no interrupt handler connected. Fix by moving the int_handler removal after the call to the state machine where no request or interrupt is outstanding. Cc: stable@vger.kernel.org Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Tested-by: Bjoern Walk <bwalk@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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