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* [PATCH] s390: cio non-unique path group idsPeter Oberparleiter2006-06-05
| | | | | | | | | | | | | | From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> The path grouping can fail due to non-unique pathgroup-IDs. The source for the CPU-ID part of the ID was incorrectly specified on 64 bit systems. Additionally, the length of the ID was too large due to incorrect data packing declaration. Fix CPU-ID lowcore address and add missing packing declaration. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@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>
* [PATCH] s390: irb memcpy argument swapCornelia Huck2006-06-05
| | | | | | | | | | | | From: Cornelia Huck <cornelia.huck@de.ibm.com> Swapped memcpy arguments in ccw_device_irq() when doing basic sense after unsolicited interrupt. Signed-off-by: Cornelia Huck <cornelia.huck@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>
* [netdrvr s/390] trim trailing whitespaceJeff Garzik2006-05-26
| | | | | Previous fix patches added a bunch of trailing whitespace, which git-applymbox complained loudly about.
* [PATCH] s390: lcs driver bug fixes and improvements [2/2]Klaus Wacker2006-05-26
| | | | | | | This is the second lcs driver patch containing the rest of lcs fixes. Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] s390: lcs driver bug fixes and improvements [1/2]Klaus Wacker2006-05-26
| | | | | | | | | | | | | | | | Several problems occured with lcs device driver: - device not operational anymore after cable pull/plug-in. - unpredictable results occured, e.g. kernel panic using cards of type QD8F. - STOPLAN and delete multicast address command were not proper recognized by OSA card under heavy network workload. - channel/device error checks missing in interrupt handler. To fix all problems at once recovery of lcs devices has been improved. missing error checks in lcs interrupt handler has been added. Once a hardware problem occurs lcs will recover the device now properly. Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] s390: qeth driver fixesUrsula Braun2006-05-26
| | | | | | | | | | | | | | | | | | From: Frank Blaschka <Frank.Blaschka@de.ibm.com> From: Frank Pavlic <fpavlic@de.ibm.com> - fix fake_ll during initial device bringup. fake_ll was not active after first start of the device. Problem only occured when qeth was built without IPV6 support. - avoid skb usage after invocation of qeth_flush_buffers, because skb might already be freed. - remove yet another useless netif_wake_queue in qeth_softsetup_ipv6 since this function is only called when device is going online. In this case card->state will never be in state UP. So let the net_device queue down . Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] s390: qeth driver fixesUrsula Braun2006-05-26
| | | | | | | | | | | | From: Frank Pavlic <fpavlic@de.ibm.com> - correct checking of sscanf-%n value in qeth_string_to_ipaddr(). - don't use netif_stop_queue outside the hard_start_xmit routine. Rather use netif_tx_disable. - don't call qeth_netdev_init on a recovery. Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] s390: minor fix in cu3088Cornelia Huck2006-05-26
| | | | | | | | In case of a parse error for the cu3088 group attribute, return -EINVAL instead of count. Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] s390: lcs incorrect testGreg Smith2006-05-15
| | | | | | | | | | | While debugging why our LCS emulator is having some problems I noticed the following weirdness in drivers/s390/net/lcs.c routine lcs_irq. The `if' statement is always true since SCHN_STAT_PCI is defined as 0x80. Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] s390: fix ipd handlingHeiko Carstens2006-05-01
| | | | | | | | | | | | As pointed out by Paulo Marques <pmarques@grupopie.com> MAX_IPD_TIME is by a factor of ten too small. Since this means that we allow ten times more IPDs in the intended time frame this could result in a cpu check stop of a physical cpu. Cc: 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>
* [PATCH] s390: make qeth buildableBastian Blank2006-05-01
| | | | | | | | | | | Signed-off-by: Bastian Blank <bastian@waldi.eu.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Jeff Garzik <jeff@garzik.org> Acked-by: Frank Pavlic <fpavlic@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] s390: dasd device identifiersHorst Hummel2006-04-28
| | | | | | | | | | | | | Generate new sysfs-attribute 'uid' that contains an device specific unique identifier. This can be used to identity multiple ALIASES of the same physical device (PAV). In addition the sysfs-attributes 'vendor' (containing the manufacturer of the device) and 'alias' (identify alias or base device) is added. This is first part of PAV support in LPAR (also valid on zVM). 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>
* [PATCH] s390: instruction processing damage handlingHeiko Carstens2006-04-28
| | | | | | | | | | | | | In case of an instruction processing damage (IPD) machine check in kernel mode the resulting action is always to stop the kernel. This is not necessarily the best solution since a retry of the failing instruction might succeed. Add logic to retry the instruction if no more than 30 instruction processing damage checks occured in the last 5 minutes. Signed-off-by: Heiko Carstens <heiko.carstens@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>
* [PATCH] s390: tape 3590 changesStefan Bader2006-04-28
| | | | | | | | | | Added some changes that where proposed by Andrew Morton. Added 3592 device type. Signed-off-by: Stefan Bader <shbader@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>
* [PATCH] s390: fix slab debuggingChristian Borntraeger2006-04-28
| | | | | | | | | | | | | | | With CONFIG_SLAB_DEBUG=y networking over qeth doesn't work. The problem is that the qib structure embedded in the qeth_irq structure needs an alignment of 256 but kmalloc only guarantees an alignment of 8. When using SLAB debugging the alignment of qeth_irq is not sufficient for the embedded qib structure which causes all users of qdio (qeth and zfcp) to stop working. Allocate qeth_irq structure with __get_free_page. That wastes a small amount of memory (~2500 bytes) per online adapter. Signed-off-by: Christian Borntraeger <cborntra@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>
* [PATCH] s390: dasd ioctl never returnsHorst Hummel2006-04-28
| | | | | | | | | | | | | | | The dasd state machine is not designed to enable an unformatted device, since 'unformatted' is a final state. The BIODASDENABLE ioctl calls dasd_enable_device() which never returns if the device is in this special state. Return -EPERM in dasd_increase_state for unformatted devices to make dasd_enable_device terminate. Note: To get such an unformatted device online it has to be re-analyzed. This means that the device needs to be disabled prior to re-enablement. 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>
* [PATCH] s390: qdio memory allocationsAndreas Herrmann2006-04-28
| | | | | | | | | | | | Avoid memory allocation with GFP_KERNEL in qdio_establish/qdio_shutdown. Use memory pool instead. (Otherwise this can lead to an I/O stall where qdio waits for a free page and zfcp waits for end of error recovery in low memory situations.) Signed-off-by: Andreas Herrmann <aherrman@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>
* [PATCH] s390: enable interrupts on error pathStefan Bader2006-04-28
| | | | | | | | | | Interrupts can stay disabled if an error occurred in _chp_add(). Use spin_unlock_irq on the error paths to reenable interrupts. Signed-off-by: Stefan Bader <shbader@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>
* [PATCH] s390: fix I/O termination race in cioPeter Oberparleiter2006-04-28
| | | | | | | | | | | Fix a race condition in the I/O termination logic. The race can cause I/O to a dasd device to fail with no retry left after turning one channel path to the device off and on multiple times. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@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>
* [PATCH] s390: minor tape fixesPeter Oberparleiter2006-04-11
| | | | | | | | | Cleanup of minor bugs found by a source code checker. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@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>
* [PATCH] s390: dasd proc entriesHorst Hummel2006-04-11
| | | | | | | | | | | The proc_mkdir calls in the dasd driver are not check for NULL pointers. Add code to check the pointers and bail out if one of the proc entries could not be created. 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>
* [PATCH] s390: fail-fast requests on quiesced devicesPeter Oberparleiter2006-04-11
| | | | | | | | | | | Using the fail-fast flag in i/o requests on a dasd disk which has been quiesced leads to kernel panics. Modify the request start function to only work on requests in a valid state. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@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>
* [PATCH] s390: dasd device offline messagesHorst Hummel2006-04-11
| | | | | | | | | | | | The dasd driver sometimes print the misleading message "Can't offline dasd device with open count = 0". The reason why it can't offline the device in this case is that the device is still in the startup phase. Print a more meaningful message. 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>
* [PATCH] s390: increase cio_trace debug event sizePeter Oberparleiter2006-04-11
| | | | | | | | | | | Debugging events in cio_trace/hex_ascii are truncated for some trace entries. Increase trace event size to 16 bytes to cover longer text events, make CIO_HEX_EVENT an inline function that loops to cover bigger hex events. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@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>
* [PATCH] s390: wrong return codes in cio_ignore_proc_init()Cornelia Huck2006-04-11
| | | | | | | | | | | cio_ignore_proc_init() returns 1 in case of success and 0 in case of failure. The caller tests for != 0, so better return 0 in case of success and -ENOENT in case of failure. Signed-off-by: Cornelia Huck <cornelia.huck@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>
* [PATCH] s390: invalid check after kzalloc()Peter Oberparleiter2006-04-11
| | | | | | | | | | Typo. After the call to kzalloc() for kdb->key_maps the test for NULL checks the wrong variable. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@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>
* BUG_ON() Conversion in drivers/s390/net/lcs.cEric Sesterhenn2006-04-02
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in drivers/s390/char/tape_block.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in drivers/s390/block/dasd_erp.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* typos: s/ducument/document/Adrian Bunk2006-03-31
| | | | | | s/ducument/document/ Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds2006-03-26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: drivers/char/ftape/lowlevel/fdc-io.c: Correct a comment Kconfig help: MTD_JEDECPROBE already supports Intel Remove ugly debugging stuff do_mounts.c: Minor ROOT_DEV comment cleanup BUG_ON() Conversion in drivers/s390/block/dasd_devmap.c BUG_ON() Conversion in mm/mempool.c BUG_ON() Conversion in mm/memory.c BUG_ON() Conversion in kernel/fork.c BUG_ON() Conversion in ipc/sem.c BUG_ON() Conversion in fs/ext2/ BUG_ON() Conversion in fs/hfs/ BUG_ON() Conversion in fs/dcache.c BUG_ON() Conversion in fs/buffer.c BUG_ON() Conversion in input/serio/hp_sdc_mlc.c BUG_ON() Conversion in md/dm-table.c BUG_ON() Conversion in md/dm-path-selector.c BUG_ON() Conversion in drivers/isdn BUG_ON() Conversion in drivers/char BUG_ON() Conversion in drivers/mtd/
| * BUG_ON() Conversion in drivers/s390/block/dasd_devmap.cEric Sesterhenn2006-03-26
| | | | | | | | | | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* | [PATCH] mempool: use common mempool kmalloc allocatorMatthew Dobson2006-03-26
| | | | | | | | | | | | | | | | | | | | This patch changes several mempool users, all of which are basically just wrappers around kmalloc(), to use the common mempool_kmalloc/kfree, rather than their own wrapper function, removing a bunch of duplicated code. Signed-off-by: Matthew Dobson <colpatch@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] sem2mutex: misc static one-file mutexesIngo Molnar2006-03-26
|/ | | | | | | | | | | | | | | | | | | | | | Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Paul Mackerras <paulus@samba.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jens Axboe <axboe@suse.de> Cc: Neil Brown <neilb@cse.unsw.edu.au> Acked-by: Alasdair G Kergon <agk@redhat.com> Cc: Greg KH <greg@kroah.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds2006-03-25
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (21 commits) BUG_ON() Conversion in drivers/video/ BUG_ON() Conversion in drivers/parisc/ BUG_ON() Conversion in drivers/block/ BUG_ON() Conversion in sound/sparc/cs4231.c BUG_ON() Conversion in drivers/s390/block/dasd.c BUG_ON() Conversion in lib/swiotlb.c BUG_ON() Conversion in kernel/cpu.c BUG_ON() Conversion in ipc/msg.c BUG_ON() Conversion in block/elevator.c BUG_ON() Conversion in fs/coda/ BUG_ON() Conversion in fs/binfmt_elf_fdpic.c BUG_ON() Conversion in input/serio/hil_mlc.c BUG_ON() Conversion in md/dm-hw-handler.c BUG_ON() Conversion in md/bitmap.c The comment describing how MS_ASYNC works in msync.c is confusing rcu: undeclared variable used in documentation fix typos "wich" -> "which" typo patch for fs/ufs/super.c Fix simple typos tabify drivers/char/Makefile ...
| * BUG_ON() Conversion in drivers/s390/block/dasd.cEric Sesterhenn2006-03-24
| | | | | | | | | | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* | [PATCH] Remove MODULE_PARMRusty Russell2006-03-25
|/ | | | | | | | | | MODULE_PARM was actually breaking: recent gcc version optimize them out as unused. It's time to replace the last users, which are generally in the most unloved drivers anyway. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] dasd: "cleanup dasd_ioctl" fixBastian Blank2006-03-24
| | | | | | | | | | Cast the argument correctly. Cc: Christoph Hellwig <hch@lst.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] s390: kzalloc() conversion in drivers/s390Eric Sesterhenn2006-03-24
| | | | | | | | | Convert all kmalloc + memset sequences in drivers/s390 to kzalloc usage. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> 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>
* [PATCH] s390: CEX2A crt message lengthEric Rossman2006-03-24
| | | | | | | | | | | | | | Undetected edge case for CRT messages to CEX2A caused length to be too short, thus truncating the message. The solution was to check a different variable which actually determines which key type is being used. Increment version number in z90main.c to correct level of 1.3.3, fix copyright year and add comment about bitlength limit of CEX2A. Signed-off-by: Eric Rossman <edrossma@us.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>
* [PATCH] s390: 3590 tape driverStefan Bader2006-03-24
| | | | | | | | | | | Michael Holzheu <holzheu@de.ibm.com>, Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Stefan Bader <shbader@de.ibm.com> Signed-off-by: Michael Holzheu <holzheu@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>
* [PATCH] s390: fix endless retry loop in tape driverMichael Holzheu2006-03-24
| | | | | | | | | | | | | If a tape device is assigned to another host, the interrupt for the assign operation comes back with deferred condition code 1. Under some conditions this can lead to an endless loop of retries. Check if the current request is still in IO in deferred condition code handling and prevent retries when the request has already been cancelled. Signed-off-by: Michael Holzheu <holzheu@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>
* [PATCH] s390: tape operation abortion leads to panicMichael Holzheu2006-03-24
| | | | | | | | | | | | | | | | When a request is aborted because of a signal, we currently stop the request via csh, but we do not wait for the interrupt of csh in any case. We free the request structure and therefore when the interrupt for the csh operation is presented, the request object is no longer valid and an invalid callback pointer is used. To fix this wait until the interrupt for csh arrives and until wait_event_interruptible() does not return -ERESTARTSYS. Signed-off-by: Michael Holzheu <holzheu@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>
* [PATCH] s390: tape retry flooding by deferred CC in interruptStefan Bader2006-03-24
| | | | | | | | | | | If a deferred CC happens there will be lots of messages, because the retry is done immediatly in the interrupt handler which can be too fast. To avoid this requeue the request and schedule the queue to be processed. Signed-off-by: Stefan Bader <shbader@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>
* [PATCH] s390: dasd extended error reportingStefan Weinhuber2006-03-24
| | | | | | | | | | | 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: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] s390: random values in result of BIODASDINFO2Horst Hummel2006-03-24
| | | | | | | | | | | Use kzalloc to get a zeroed buffer for the structure returned to user space by the BIODASDINFO2 ioctl. Not all fields are set up, e.g. the read_devno is missing. 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>
* [PATCH] s390: remove experimental flag from dasd diagPeter Oberparleiter2006-03-24
| | | | | | | | | | The dasd diag discipline has been tested on 64 bit and is no longer experimental. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@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>
* [PATCH] s390: remove dynamic dasd ioctlsChristoph Hellwig2006-03-24
| | | | | | | | | | Now that there are no more users of the awkward dynamic ioctl hack we can remove the code to support it. Signed-off-by: Christoph Hellwig <hch@lst.de> 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>
* [PATCH] s390: merge cmb into dasdcChristoph Hellwig2006-03-24
| | | | | | | | | | | | | dasd_cmd just implements three ioctls which are wrappers around functionality in the core kernel or other modules. When merging those into dasd_mod they just add 22 lines of code which is far less than the amount of code removed in the last two patches, and which doesn't spill into another 4k pages when build modular, while removing a 128lines module. Signed-off-by: Christoph Hellwig <hch@lst.de> 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>
* [PATCH] s390: use normal switch statement for ioctls in dasd_ioctlcChristoph Hellwig2006-03-24
| | | | | | | | | | | | | | | Add an ->ioctl method to the dasd_discipline structure. This allows to apply the same kind of cleanups the last patch applied to dasd_ioctl.c to dasd_eckd.c (the only dasd discipline with special ioctls) aswell. Again lots of code removed. During auditing the ioctls I found two fishy return value propagations from copy_{from,to}_user, maintainers please check those, I've marked them with XXX comments. Signed-off-by: Christoph Hellwig <hch@lst.de> 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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