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2006-08-26Merge gregkh@master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Greg Kroah-Hartman
2006-08-24Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Greg Kroah-Hartman
2006-08-24[S390] dasd PAV enabling.Horst Hummel
The subsystem check in the PAV code is incorrect, it enables PAV per device instead of per subsystem. Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-19[PATCH] s390: fix arp_tbl lock usage in qethHeiko Carstens
qeth: bhs must be disabled when accessing neighbour tables. ================================= [ INFO: inconsistent lock state ] Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-16[S390] inaccessible PAV alias devices on LPAR.Peter Oberparleiter
In some situations PAV alias devices on LPAR are not accessible. The initialization procedure required to enable access to PAV alias devices has to be performed per storage server subsystem and not only once per storage server. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-16[S390] dasd slab cache alignment.Heiko Carstens
The dasd_page_cache should return page addresses and therefore the cache must be created with an alignment of PAGE_SIZE. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-10[S390] dasd calls kzalloc while holding a spinlock.Horst Hummel
The dasd function dasd_set_uid calls kzalloc while holding the dasd_devmap_lock. Rearrange the code to do the memory allocation outside the lock. Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-09[S390] dasd set offline kernel bug.Horst Hummel
The request queue flush function of the dasd driver has to dequeue the requests first and then call the end request function. Otherwise a kernel bug in ll_rw_block.c might get triggered. Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-07[S390] xpram system device class.Martin Schwidefsky
Remove system device class for xpram. It creates the directory hierarchy under /sys/devices/system/xpram/xpram0. The xpram0 directory is empty and it is always created while xpram1 and following devices are always missing, independent if the devices exist or not. Since the xpram devices are listed in /proc/partitions and /sys/block/ as slram<x> the system device class for xpram is meaningless. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-07[S390] lost interrupt after chpid vary off/on cycle.Peter Oberparleiter
I/O on a CCW device may stall if a channel path to that device is logicaly varied off/on. A user I/O interrupt can get misinterpreted as interrupt for an internal path verification operation due to a missing check and is therefore never reported to the device driver. Correct check for pending interruptions before starting path verification. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-07[S390] retry after deferred condition code.Cornelia Huck
Do a retry of read device characteristics / read configuration data when a deferred condition code 1 is encountered in ccw_device_wake_up(). Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-07[S390] tape class return value handling.Heiko Carstens
Without this patch register_tape_dev() will always fail, but might return a value that is not an error number. This will lead to accesses to already freed memory areas... Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-06Merge ../linux-2.6James Bottomley
Conflicts: arch/ia64/hp/sim/simscsi.c Stylistic differences in two separate fixes for buffer->request_buffer problem. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-06[SCSI] zfcp: bump version numberAndreas Herrmann
New version number fo zfcp driver. Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-06[SCSI] zfcp: minor erp bug fixesAndreas Herrmann
Bug fixes for zfcp's erp: - trigger adapter reopen if do_QDIO fails - avoid erp deadlock if registration of scsi target or remote port hang - do not treat as error if exchange port data fails - decrease timeout for target reset and aborts - mark unit failed if slave_destroy is called Additionally some code cleanup was done: - made some functions void when retval is not of interest - shortened initialization of zfcp's host_template - corrected some comments Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-06[SCSI] zfcp: improve management of request IDsVolker Sameske
Improve request handling. Use hash table to manage request IDs. Signed-off-by: Volker Sameske <sameske@de.ibm.com> Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-07-27[S390] duplicate ccw devices in ccwgroup.Cornelia Huck
Fail to create a ccwgroup device if a ccw device is passed in twice. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-27[S390] permanent subchannel busy conditions may cause I/O stallPeter Oberparleiter
In special conditions where a subchannel rejects the HALT I/O- instruction with a busy indication (cc 2), I/O may stall. I/O request termination logic retries HALT I/O indefinitely because it expects HALT I/O to alter the subchannel status which is not true when cc 2 is returned. In case of a busy indication, try CLEAR I/O instruction immediately. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-18[S390] sysfs_create_xxx return values.Heiko Carstens
Take return values of sysfs_create_group & friends into account. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-17[S390] channel measurement interval display.Cornelia Huck
Display avg_sample_interval in nanoseconds, like it is documented. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-17[S390] xpram module parameter parsing - take 2.Heiko Carstens
Don't use memparse since the default size modifier is 'k'. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-12[S390] Fix sparse warnings.Heiko Carstens
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-12[S390] path grouping and path verifications fixes.Cornelia Huck
1. Multipath devices for which SetPGID is not supported are not handled well. Use NOP ccws for path verification (sans path grouping) when SetPGID is not supported. 2. Check for PGIDs already set with SensePGID on _all_ paths (not just the first one) and try to find a common one. Moan if no common PGID can be found (and use NOP verification). If no PGIDs have been set, use the css global PGID (as before). (Rationale: SetPGID will get a command reject if the PGID it tries to set does not match the already set PGID.) 3. Immediately before reboot, issue RESET CHANNEL PATH (rcp) on all chpids. This will remove the old PGIDs. rcp will generate solicited CRWs which can be savely ignored by the machine check handler (all other actions create unsolicited CRWs). Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-12[S390] xpram module parameter parsing.Heiko Carstens
The module parameters for xpram are not or in a wrong way parsed. The xpram module uses the module_param_array directive with an int parameter which causes the kernel to automatically parse the passed numbers. This will cause errors if arguments are omitted or cause wrong results if arguments have size qualifiers. Use module_param_array with charp and parse the arguments later. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-12[S390] subchannel register/unregister mutex.Cornelia Huck
Add a reg_mutex to prevent unregistering a subchannel before it has been registered. Since 2.6.17, we've seen oopses in kslowcrw when a device is found to be not operational during sense id when doing initial device recognition; it is not clear yet why that particular problem was not (yet) observed with earlier kernels... Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-10[PATCH] s390: broken null test in claw driverDave Jones
Whoops, better hope this never gets passed a null dev in its current state. Signed-off-by: Dave Jones <davej@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Michael Holzheu <holzheu@de.ibm.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10[PATCH] fix oddball boolean logic in s390 netiucvDave Jones
Signed-off-by: Dave Jones <davej@redhat.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Andreas Herrmann <aherrman@de.ibm.com> Cc: Michael Holzheu <holzheu@de.ibm.com> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10[PATCH] s390: move var declarations behind ifdefSerge E. Hallyn
Two variables in drivers/s390/net/qeth_main.c:qeth_send_packet() are only used if CONFIG_QETH_PERF_STATS. Move their definition under the same ifdef to remove compiler warning. Signed-off-by: Serge Hallyn <serue@us.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-08[NET] gso: Add skb_is_gsoHerbert Xu
This patch adds the wrapper function skb_is_gso which can be used instead of directly testing skb_shinfo(skb)->gso_size. This makes things a little nicer and allows us to change the primary key for indicating whether an skb is GSO (if we ever want to do that). Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-03[PATCH] zfcp: fix incorrect usage of fsf_req_list_lockHeiko Carstens
================================= [ INFO: inconsistent lock state ] --------------------------------- inconsistent {in-hardirq-W} -> {hardirq-on-W} usage. swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes: (&adapter->fsf_req_list_lock){++..}, at: [<0000000000274486>] zfcp_qdio_reqid_check+0x46/0x178 {in-hardirq-W} state was registered at: [<000000000005fb0c>] __lock_acquire+0xad8/0xed0 [<00000000000604ae>] lock_acquire+0x9a/0xc8 [<000000000035a326>] _spin_lock+0x4e/0x68 [<0000000000274486>] zfcp_qdio_reqid_check+0x46/0x178 [<000000000027469e>] zfcp_qdio_response_handler+0xe6/0x430 [<0000000000219dd4>] tiqdio_thinint_handler+0xd20/0x213c [<000000000020229a>] do_adapter_IO+0xb2/0xc0 [<0000000000206f32>] do_IRQ+0x136/0x16c [<0000000000020462>] io_no_vtime+0x16/0x1c [<0000000000019432>] cpu_idle+0x222/0x250 irq event stamp: 129220 hardirqs last enabled at (129220): [<00000000000411e6>] tasklet_hi_action+0x5a/0x19c hardirqs last disabled at (129219): [<00000000000411c0>] tasklet_hi_action+0x34/0x19c softirqs last enabled at (129212): [<0000000000040b62>] __do_softirq+0x13a/0x180 softirqs last disabled at (129217): [<000000000001fd58>] do_softirq+0xec/0xf0 other info that might help us debug this: no locks held by swapper/0. stack backtrace: 00000000012bb670 0000000000000002 0000000000000000 00000000012bb780 00000000012bb6e8 0000000000399122 0000000000399122 0000000000016b0a 0000000000000000 0000000000000000 0000000000000000 00000000004660e8 0000000000000000 000000000000000d 00000000012bb6e0 00000000012bb758 0000000000368b90 0000000000016b0a 00000000012bb6e0 00000000012bb730 Call Trace: ([<0000000000016a26>] show_trace+0x76/0xdc) [<0000000000016b2c>] show_stack+0xa0/0xd0 [<0000000000016b8a>] dump_stack+0x2e/0x3c [<000000000005e3da>] print_usage_bug+0x27e/0x290 [<000000000005ea9c>] mark_lock+0x6b0/0x6c0 [<000000000005f33e>] __lock_acquire+0x30a/0xed0 [<00000000000604ae>] lock_acquire+0x9a/0xc8 [<000000000035a326>] _spin_lock+0x4e/0x68 [<0000000000274486>] zfcp_qdio_reqid_check+0x46/0x178 [<000000000027469e>] zfcp_qdio_response_handler+0xe6/0x430 [<0000000000217bd2>] tiqdio_tl+0xd02/0x2120 [<000000000004123a>] tasklet_hi_action+0xae/0x19c [<0000000000040ae4>] __do_softirq+0xbc/0x180 [<000000000001fd58>] do_softirq+0xec/0xf0 [<0000000000040c38>] irq_exit+0x90/0xa8 [<0000000000206f40>] do_IRQ+0x144/0x16c [<0000000000020462>] io_no_vtime+0x16/0x1c [<0000000000019432>] cpu_idle+0x222/0x250 ([<0000000000019416>] cpu_idle+0x206/0x250) [<000000000001405a>] rest_init+0x5a/0x68 [<0000000000536998>] start_kernel+0x39c/0x3dc [<0000000000013046>] _stext+0x46/0x1000 Fix incorrect usage of fsf_req_list_lock. It's used in tasklet context (irqs on) as well as in irq context. Therefore use the spin_lock_irqsave variant to avoid deadlocks. Acked-by: Andreas Herrmann <aherrman@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>
2006-07-03[PATCH] zfcp: fix incorrect usage of erp_lockHeiko Carstens
================================= [ INFO: inconsistent lock state ] --------------------------------- inconsistent {hardirq-on-W} -> {in-hardirq-W} usage. swapper/0 [HC1[1]:SC0[0]:HE0:SE1] takes: (&adapter->erp_lock){+-..}, at: [<000000000026c7f8>] zfcp_erp_async_handler+0x3c/0x70 {hardirq-on-W} state was registered at: [<000000000005f33e>] __lock_acquire+0x30a/0xed0 [<00000000000604ae>] lock_acquire+0x9a/0xc8 [<000000000035a7ae>] _write_lock+0x4e/0x68 [<000000000026d822>] zfcp_erp_adapter_strategy_generic+0x286/0xd94 [<000000000026fd72>] zfcp_erp_strategy_do_action+0x91e/0x1a94 [<0000000000271a3a>] zfcp_erp_thread+0x21a/0x1568 [<0000000000019096>] kernel_thread_starter+0x6/0xc [<0000000000019090>] kernel_thread_starter+0x0/0xc irq event stamp: 12078 hardirqs last enabled at (12077): [<0000000000019416>] cpu_idle+0x206/0x250 hardirqs last disabled at (12078): [<0000000000020458>] io_no_vtime+0xc/0x1c softirqs last enabled at (12072): [<0000000000040b62>] __do_softirq+0x13a/0x180 softirqs last disabled at (12059): [<000000000001fd58>] do_softirq+0xec/0xf0 other info that might help us debug this: no locks held by swapper/0. stack backtrace: 00000000012bb648 0000000000000002 0000000000000000 00000000012bb758 00000000012bb6c0 0000000000399122 0000000000399122 0000000000016b0a 0000000000000000 0000000000000001 0000000000000000 00000000004660e8 0000000000000000 000000000000000d 00000000012bb6b8 00000000012bb730 0000000000368b90 0000000000016b0a 00000000012bb6b8 00000000012bb708 Call Trace: ([<0000000000016a26>] show_trace+0x76/0xdc) [<0000000000016b2c>] show_stack+0xa0/0xd0 [<0000000000016b8a>] dump_stack+0x2e/0x3c [<000000000005e3da>] print_usage_bug+0x27e/0x290 [<000000000005e934>] mark_lock+0x548/0x6c0 [<000000000005fb0c>] __lock_acquire+0xad8/0xed0 [<00000000000604ae>] lock_acquire+0x9a/0xc8 [<000000000035a662>] _write_lock_irqsave+0x62/0x80 [<000000000026c7f8>] zfcp_erp_async_handler+0x3c/0x70 [<0000000000279178>] zfcp_fsf_req_dispatch+0xd8/0x1fa8 [<000000000027e538>] zfcp_fsf_req_complete+0x104/0xe4c [<0000000000274534>] zfcp_qdio_reqid_check+0xf4/0x178 [<000000000027469e>] zfcp_qdio_response_handler+0xe6/0x430 [<0000000000219dd4>] tiqdio_thinint_handler+0xd20/0x213c [<000000000020229a>] do_adapter_IO+0xb2/0xc0 [<0000000000206f32>] do_IRQ+0x136/0x16c [<0000000000020462>] io_no_vtime+0x16/0x1c [<0000000000019432>] cpu_idle+0x222/0x250 ([<0000000000019416>] cpu_idle+0x206/0x250) [<000000000001405a>] rest_init+0x5a/0x68 [<0000000000536998>] start_kernel+0x39c/0x3dc [<0000000000013046>] _stext+0x46/0x1000 Fix incorrect usage of erp_lock. Using the write_lock() variant is wrong, since this might lead to deadlocks. Acked-by: Andreas Herrmann <aherrman@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>
2006-07-03[PATCH] lockdep: annotate qeth driverHeiko Carstens
Annotate the qeth driver which uses a private skb-queue-head that is safely used in hardirq context too. Has no effect on non-lockdep kernels. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03[PATCH] lockdep: s390 turn validator off in machine-check handlerHeiko Carstens
Machine checks on s390 are always enabled (except in the machine check handler itself). Therefore use lockdep_off()/on() in the machine check handler to avoid deadlocks in the lock validator. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03[PATCH] lockdep: irqtrace subsystem, s390 supportHeiko Carstens
irqtrace support for s390. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6: (22 commits) [PATCH] devfs: Remove it from the feature_removal.txt file [PATCH] devfs: Last little devfs cleanups throughout the kernel tree. [PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV [PATCH] devfs: Remove the tty_driver devfs_name field as it's no longer needed [PATCH] devfs: Remove the line_driver devfs_name field as it's no longer needed [PATCH] devfs: Remove the videodevice devfs_name field as it's no longer needed [PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed [PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer needed [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree [PATCH] devfs: Remove devfs_remove() function from the kernel tree [PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree [PATCH] devfs: Remove devfs_mk_bdev() function from the kernel tree [PATCH] devfs: Remove devfs_mk_symlink() function from the kernel tree [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree [PATCH] devfs: Remove devfs_*_tape() functions from the kernel tree [PATCH] devfs: Remove devfs support from the sound subsystem [PATCH] devfs: Remove devfs support from the ide subsystem. [PATCH] devfs: Remove devfs support from the serial subsystem [PATCH] devfs: Remove devfs from the init code [PATCH] devfs: Remove devfs from the partition code ...
2006-06-29[S390] rework of channel measurement facility.Cornelia Huck
Fixes for several channel measurement facility bugs: * Blocks copied from the hardware might not be consistent. Solve this by moving the copying into idle state and repeating the copying. * avg_sample_interval changed with every read, even though no new block was available. Solve this by storing a timestamp when the last new block was received. * Several locking issues. * Measurements were not reenabled after a disconnected device became available again. * Remove #defines for ioctls that were never implemented. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29[S390] add PAV support to the dasd driver.Horst Hummel
Add support for parallel-access-volumes to the dasd driver. This allows concurrent access to dasd devices with multiple channel programs. Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29[S390] cio chpid offline.Cornelia Huck
After setting a path to a dasd offline at the SE, I/O hangs on that dasd for 5 minutes, then continues. I/O for which an interrupt will not be reported after the channel path has been disabled was not terminated by the common I/O layer, causing the dasd MIH to hit after 5 minutes. Be more aggressive in terminating I/O after setting a channel path offline. Also make sure to generate a fake irb if the device driver issues an I/O request after being notified of the killed I/O and clear residual information from the irb before trying to start the delayed verification. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29Convert s390_collect_crw_info() in s390mach.c from being startedSerge E. Hallyn
as a deprecated kernel_thread to a kthread. Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29[S390] dasd eer data format.Stefan Weinhuber
The struct dasd_eer_header needs the packed attribute, or there will be 6 additional bytes of random data between the fixed header and the variable length part of the eer data. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29[S390] dasd whitespace and other cosmetics.Horst Hummel
Dasd code cleanup: 1) remove white space, 2) remove the emacs override sections, and 3) use kzalloc instead of kmalloc. Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29[S390] dasd_eckd_dump_sense bug.Horst Hummel
The ccw dump function dasd_eckd_dump_ccw_range can crash because it does not take care about the IDAL flag in the ccw. Check for IDALs flag set in CCW and follow the indirect list to print the data that is refered by the ccw. Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29[S390] missing check in dasd_eer_open.Stefan Weinhuber
Check the return value of kzalloc in dasd_eer_open. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29[S390] modular 3270 driver.Martin Schwidefsky
The initial i/o to a 3270 device is done using the static module variables raw3270_init_data and raw3270_init_request. If the 3270 device driver is built as a module and gets loaded above 2GB, the initial i/o will fail because these variables will get addresses > 2GB. To make it work the two variables are moved to struct raw3270 and the data structure is allocated with GFP_DMA. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29[S390] cio async subchannel reprobe.Peter Oberparleiter
Changes in the DASD driver require an asynchronous implementation of the subchannel reprobe loop. This loop was so far only used by the blacklisting mechanism but is now available to all CCW device drivers. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29[S390] ccwgroup device unregister.Cornelia Huck
Work around the problem that a device cannot be unregistered from driver_for_each_device() because of klist node refcounting: Get device after device owned by the driver to be unregistered with driver_find_device() and then unregister it. This works because driver_get_device() gets us out of the region of the elevated klist node refcount. driver_find_device() will always get the next device in the list after the found one has been unregistered. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29[S390] channel measurement fix.Cornelia Huck
Specify correct sizeof() in chp_measurement_read() and return correct amount of read data. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29[S390] cio long busy in read configuration data.Peter Oberparleiter
Trying to set a DASD root device online can fail under some circumstances with the message "Read configuration data returned error -5". The cause is that read configuration data incorrectly aborts with -EIO when it encounters a temporary busy condition at a storage server. Perform retry when encountering temporary busy conditions. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-27[PATCH] spin/rwlock init cleanupsIngo Molnar
locking init cleanups: - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK() - convert rwlocks in a similar manner this patch was generated automatically. Motivation: - cleanliness - lockdep needs control of lock initialization, which the open-coded variants do not give - it's also useful for -rt and for lock debugging in general Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>