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path: root/drivers/s390/block
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2008-05-30[S390] dasd: use a generic wait_queue for sleep_onStefan Haberland
Use a generic wait_queue to prevent the wait_queue in dasd_sleep_on_ functions from being referenced by callback_data while it does not exist any more. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-05-15[S390] dasd: fix timeout handling in interrupt handlerStefan Weinhuber
When the dasd_int_handler is called with an error code instead of an irb, the associated request should be restarted. This handling was missing from the -ETIMEDOUT case. In fact it should be done in any case. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-05-15[S390] dasd: Use const in busid functions.Cornelia Huck
We should use 'const char *' in the busid functions since the strings are not modified anyway. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-04-29s390: use non-racy method for proc entries creationDenis V. Lunev
Use proc_create() to make sure that ->proc_fops be setup before gluing PDE to main tree. Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29proc: remove proc_root from driversAlexey Dobriyan
Remove proc_root export. Creation and removal works well if parent PDE is supplied as NULL -- it worked always that way. So, one useless export removed and consistency added, some drivers created PDEs with &proc_root as parent but removed them as NULL and so on. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28return pfn from direct_access, for XIPJared Hulbert
Alter the block device ->direct_access() API to work with the new get_xip_mem() API (that requires both kaddr and pfn are returned). Some architectures will not do the right thing in their virt_to_page() for use by XIP (to translate from the kernel virtual address returned by direct_access(), to a user mappable pfn in XIP's page fault handler. However, we can't switch it to just return the pfn and not the kaddr, because we have no good way to get a kva from a pfn, and XIP requires the kva for its read(2) and write(2) handlers. So we have to return both. Signed-off-by: Jared Hulbert <jaredeh@gmail.com> Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Carsten Otte <cotte@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux-mm@kvack.org Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-17[S390] Remove code duplication from monreader / dcssblk.Martin Schwidefsky
Move the function that prints the segment warning messages found in the monreader driver and the dcssblk driver to the extmem base code. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-04-17[S390] Fix a lot of sparse warnings.Heiko Carstens
Most noteable part of this commit is the new local header file entry.h which contains all the function declarations of functions that get only called from asm code or are arch internal. That way we can avoid extern declarations in C files. This is more or less the same that was done for sparc64. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-04-17[S390] replace remaining __FUNCTION__ occurrencesHarvey Harrison
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-04-17[S390] dasd: add sim handling.Stefan Haberland
Now the system reports system information messages (SIM) to the user. The System Reference Code (SRC) which is reported to the user gives the abbility to lookup the reason of the SIM online in the documentation of the storage server. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-04-17[S390] dasd: use GFP_DMA for fba private data allocationStefan Haberland
allocating dasd_fba_private without GFP_DMA results in IO error during read device characteristics of a FBA disk Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-04-17[S390] dasd: fix double elevator_exit call when deadline iosched fails to loadJosef 'Jeff' Sipek
I compiled the kernel without deadline, and the dasd code exits the old scheduler (CFQ), fails to load the new one (deadline), and then things just hang - with one of these (sorry about the weird chars - I copy & pasted it from a 3270 console): dasd(eckd): 0.0.0151: 3390/0A(CU:3990/01) Cyl:3338 Head:15 Sec:224 ------------ cut here ------------ Badness at kernel/mutex.c:134 Modules linked in: dasd_eckd_mod dasd_mod CPU: 0 Not tainted 2.6.25-rc3 #9 Process exe (pid: 538, task: 000000000d172000, ksp: 000000000d21ef88) Krnl PSW : 0404000180000000 000000000022fb5c (mutex_lock_nested+0x2a4/0x2cc) R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:0 CC:0 PM:0 EA:3 Krnl GPRS: 0000000000024218 000000000076fc78 0000000000000000 000000000000000f 000000000022f92e 0000000000449898 000000000f921c00 000003e000162590 00000000001539c4 000000000d172000 070000007fffffff 000000000d21f400 000000000f8f2560 00000000002413f8 000000000022fb44 000000000d21f400 Krnl Code: 000000000022fb50: bf2f1000 icm %r2,15,0(%r1) 000000000022fb54: a774fef6 brc 7,22f940 000000000022fb58: a7f40001 brc 15,22fb5a >000000000022fb5c: a7f4fef2 brc 15,22f940 000000000022fb60: c0e5fffa112a brasl %r14,171db4 000000000022fb66: 1222 ltr %r2,%r2 000000000022fb68: a784fedb brc 8,22f91e 000000000022fb6c: c010002a0086 larl %r1,76fc78 Call Trace: (<000000000022f92e> mutex_lock_nested+0x76/0x2cc) <00000000001539c4> elevator_exit+0x38/0x80 <0000000000156ffe> blk_cleanup_queue+0x62/0x7c <000003e0001d5414> dasd_change_state+0xe0/0x8ec <000003e0001d5cae> dasd_set_target_state+0x8e/0x9c <000003e0001d5f74> dasd_generic_set_online+0x160/0x284 <000003e00011e83a> dasd_eckd_set_online+0x2e/0x40 <0000000000199bf4> ccw_device_set_online+0x170/0x2c0 <0000000000199d9e> online_store_recog_and_online+0x5a/0x14c <000000000019a08a> online_store+0xbe/0x2ec <000000000018456c> dev_attr_store+0x38/0x58 <000000000010efbc> sysfs_write_file+0x130/0x190 <00000000000af582> vfs_write+0xb2/0x160 <00000000000afc7c> sys_write+0x54/0x9c <0000000000025e16> sys32_write+0x2e/0x50 <0000000000024218> sysc_noemu+0x10/0x16 <0000000077e82bd2> 0x77e82bd2 Set elevator pointer to NULL in order to avoid double elevator_exit calls when elevator_init call for deadline iosched fails. Also make sure the dasd device driver depends on IOSCHED_DEADLINE so the default IO scheduler of the dasd driver is present. Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-03-05[S390] dasd: fix reference counting in display method for proc/dasd/devicesStefan Weinhuber
Using the /proc/dasd/devices interface leaves the reference counter of alias devices in an inconsistent state. A process that tries to set such a device offline afterwards will hang. The dasd_devices_show function returns immediately for alias devices and this code path was missing a dasd_put_device call. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-03-05[S390] dasd: let dasd erp matching recognize alias recoveryStefan Weinhuber
When a request fails that was started on an alias device then the first recovery step is to retry it on the base device. If the recovery request fails again with the same symptoms, the next step should not be a simple retry, but should be a proper recovery based on sense data, etc. To do so, the dasd recovery functions need to recognize the alias recovery step in the erp chain by comparing the start devices. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-02-19[S390] dcss: Fix Unlikely(x) != yRoel Kluin
Fix Unlikely(x) != y Cc: Gerald Schaefer <geraldsc@de.ibm.com> Cc: Stefan Weinhuber <wein@de.ibm.com> Cc: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-02-19[S390] dasd: fix locking in __dasd_device_process_final_queueStefan Weinhuber
After setting the status of the cqr and releasing the lock for the block cqr queue, we call the cqr callback function, which will usually just trigger the dasd_block_tasklet. But when the tasklet is already running the cqr might be processed before we invoke the callback function. In rare cases the callback pointer may already be invalid by the time we want to call it, which will result in a panic. Solution: Call the callback function first and then release the lock. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-02-05[S390] dcss: Initialize workqueue before using it.Heiko Carstens
In case a dcss segment cannot be loaded blk_cleanup_queue will be called before blk_queue_make_request, leaving the struct work unplug_work of the request queue uninitialized before it is used. That leads also to the lockdep message below. To avoid that call blk_queue_make_request right after the request_queue has been allocated. This makes sure that the struct work is always initialized before it is used. INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 2 Not tainted 2.6.24 #6 Process swapper (pid: 1, task: 000000000f854038, ksp: 000000000f85f980) 040000000f85f860 000000000f85f880 0000000000000002 0000000000000000 000000000f85f920 000000000f85f898 000000000f85f898 000000000001622e 0000000000000000 000000000f85f980 0000000000000000 0000000000000000 000000000f85f880 000000000000000c 000000000f85f880 000000000f85f8f0 0000000000342908 000000000001622e 000000000f85f880 000000000f85f8d0 Call Trace: ([<000000000001619e>] show_trace+0xda/0x104) [<0000000000016288>] show_stack+0xc0/0xf8 [<00000000000163d0>] dump_stack+0xb0/0xc0 [<000000000006e4ea>] __lock_acquire+0x47e/0x1160 [<000000000006f27c>] lock_acquire+0xb0/0xd8 [<000000000005a522>] __cancel_work_timer+0x9e/0x240 [<000000000005a72e>] cancel_work_sync+0x2a/0x3c [<0000000000165c46>] kblockd_flush_work+0x26/0x34 [<0000000000169034>] blk_sync_queue+0x38/0x48 [<0000000000169080>] blk_release_queue+0x3c/0xa8 [<000000000017bce8>] kobject_cleanup+0x58/0xac [<000000000017bd66>] kobject_release+0x2a/0x38 [<000000000017d28e>] kref_put+0x6e/0x94 [<000000000017bc80>] kobject_put+0x38/0x48 [<00000000001653be>] blk_put_queue+0x2a/0x38 [<0000000000168fee>] blk_cleanup_queue+0x82/0x90 [<0000000000213e7e>] dcssblk_add_store+0x34e/0x700 [<00000000005243b8>] dcssblk_init+0x1a0/0x308 [<000000000050a3c2>] kernel_init+0x1b2/0x3a4 [<000000000001ac82>] kernel_thread_starter+0x6/0xc [<000000000001ac7c>] kernel_thread_starter+0x0/0xc INFO: lockdep is turned off. Cc: Gerald Schaefer <geraldsc@de.ibm.com> Cc: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-02-05[S390] dasd: fix panic caused by alias device offlineStefan Weinhuber
When an alias device is set offline while it is in use this may result in a panic in the cleanup part of the dasd_block_tasklet. The problem here is that there may exist some ccw requests that were originally created for the alias device and transferred to the base device when the alias was set offline. When these request are cleaned up later, the discipline pointer in the alias device may not be valid anymore. To fix this use the base device discipline to find the cleanup function. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-02-05[S390] dasd: add ifcc handlingStefan Haberland
Adding interface control check (ifcc) handling in error recovery. First retry up to 255 times and if all retries fail try an alternate path if possible. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-01-28blk_end_request: changing s390 (take 4)Kiyoshi Ueda
This patch converts s390 to use blk_end_request interfaces. Related 'uptodate' arguments are converted to 'error'. As a result, the interfaces of internal functions below are changed: o dasd_end_request o tapeblock_end_request Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux390@de.ibm.com Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-01-26[S390] usage of s390dbf: shrink number of debug areas to use.Peter Tiedemann
Signed-off-by: Peter Tiedemann <ptiedem@de.ibm.com>
2008-01-26[S390] constify function pointer tables.Jan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-01-26[S390] dasd: fix loop in request expiration handlingStefan Haberland
Add time to the 'expires' value to avoid a loop caused by the cqr termination function Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-01-26[S390] dasd: add hyper PAV support to DASD device driver, part 1Stefan Weinhuber
Parallel access volumes (PAV) is a storage server feature, that allows to start multiple channel programs on the same DASD in parallel. It defines alias devices which can be used as alternative paths to the same disk. With the old base PAV support we only needed rudimentary functionality in the DASD device driver. As the mapping between base and alias devices was static, we just had to export an identifier (uid) and could leave the combining of devices to external layers like a device mapper multipath. Now hyper PAV removes the requirement to dedicate alias devices to specific base devices. Instead each alias devices can be combined with multiple base device on a per request basis. This requires full support by the DASD device driver as now each channel program itself has to identify the target base device. The changes to the dasd device driver and the ECKD discipline are: - Separate subchannel device representation (dasd_device) from block device representation (dasd_block). Only base devices are block devices. - Gather information about base and alias devices and possible combinations. - For each request decide which dasd_device should be used (base or alias) and build specific channel program. - Support summary unit checks, which allow the storage server to upgrade / downgrade between base and hyper PAV at runtime (support is mandatory). Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-01-26[S390] drivers/s390/: Spelling fixesJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-01-26[S390] use LIST_HEAD instead of LIST_HEAD_INITDenis Cheng
single list_head variable initialized with LIST_HEAD_INIT could almost always can be replaced with LIST_HEAD declaration, this shrinks the code and looks better. Signed-off-by: Denis Cheng <crquan@gmail.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-01-26[S390] dasd: fix return value of dasd_generic_probe()Stefan Haberland
Using the return value of ccw_device_set_online as return value for dasd_generic_probe() causes the DASD to fail setting online Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-12-04[S390] dcssblk: prevent early access without own make_request functionChristian Borntraeger
When loading a dcss segment with the dcssblk driver, sometimes the following kind of message appears: bio too big device dcssblk0 (8 > 0) Buffer I/O error on device dcssblk0, logical block 172016 .. The fix is to move the disk registration after setting the make_request function, to avoid calls into generic_make_request for dcssblock without having the make_request function set up properly. Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-11-05[S390] device_schedule_callback() for dcssblk.Gerald Schaefer
Unregistering a device from within a device attribute handler leads to a deadlock. Need to use device_schedule_callback() to unregister device in error path. Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-19Convert files to UTF-8 and some cleanupsJan Engelhardt
* Convert files to UTF-8. * Also correct some people's names (one example is Eißfeldt, which was found in a source file. Given that the author used an ß at all in a source file indicates that the real name has in fact a 'ß' and not an 'ss', which is commonly used as a substitute for 'ß' when limited to 7bit.) * Correct town names (Goettingen -> Göttingen) * Update Eberhard Mönkeberg's address (http://lkml.org/lkml/2007/1/8/313) Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19Fix misspellings of "system", "controller", "interrupt" and "necessary".Robert P. J. Day
Fix the various misspellings of "system", controller", "interrupt" and "[un]necessary". Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-12[S390] xpram: fix bio_end{_,}io typoMartin Schwidefsky
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12[S390] is_power_of_2 in drivers/s390/block/dasd_int.hvignesh babu
Replacing n & (n - 1) for power of 2 check by is_power_of_2(n) Signed-off-by: vignesh babu <vignesh.babu@wipro.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2007-10-10Drop 'size' argument from bio_endio and bi_end_ioNeilBrown
As bi_end_io is only called once when the reqeust is complete, the 'size' argument is now redundant. Remove it. Now there is no need for bio_endio to subtract the size completed from bi_size. So don't do that either. While we are at it, change bi_end_io to return void. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10Fixup rq_for_each_segment() indentationJens Axboe
Remove one level of nesting where appropriate. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-10Introduce rq_for_each_segment replacing rq_for_each_bioNeilBrown
Every usage of rq_for_each_bio wraps a usage of bio_for_each_segment, so these can be combined into rq_for_each_segment. We define "struct req_iterator" to hold the 'bio' and 'index' that are needed for the double iteration. Signed-off-by: Neil Brown <neilb@suse.de> Various compile fixes by me... Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-08-22[S390] vmur: fix diag14 exceptions with addresses > 2GB.Michael Holzheu
There are several s390 diagnose calls, which must be executed below the 2GB memory boundary. In order to enforce this, those diagnoses must be compiled into the kernel. Currently diag 14 can be called within the vmur kernel module from addresses above 2GB. This leads to specification exceptions. This patch moves diag10, diag14 and diag210 into the new diag.c file. Signed-off-by: Michael Holzheu <holzheu@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2007-07-31Typo fixes errror -> errorGabriel Craciunescu
Typo fixes errror -> error Signed-off-by: Gabriel Craciunescu <nix.or.die@googlemail.com> Cc: Jeff Garzik <jeff@garzik.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-24[BLOCK] Get rid of request_queue_t typedefJens Axboe
Some of the code has been gradually transitioned to using the proper struct request_queue, but there's lots left. So do a full sweet of the kernel and get rid of this typedef and replace its uses with the proper type. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-20mm: Remove slab destructors from kmem_cache_create().Paul Mundt
Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-17unregister_blkdev() delete redundant messages in callersAkinobu Mita
No need to warn unregister_blkdev() failure by the callers. (The previous patch makes unregister_blkdev() print error message in error case) Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-10[S390] dasd: Avoid compile warnings on !CONFIG_DASD_PROFILEHeiko Carstens
drivers/s390/block/dasd_proc.c:33: warning: 'dasd_get_user_string' defined but not used drivers/s390/block/dasd_proc.c:172: warning: 'dasd_statistics_array' defined but not used Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-05-31[S390] dasd_eer: use mutex instead of semaphoreChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-05-10[S390] Kconfig: use common Kconfig files for s390.Martin Schwidefsky
Disband drivers/s390/Kconfig, use the common Kconfig files. The s390 specific config options from drivers/s390/Kconfig are moved to the respective common Kconfig files. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-05-10[S390] Avoid sparse warnings.Heiko Carstens
Monthly sparse warning avoidance patch. Sigh. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2007-05-10[S390] dasd: Fix modular build.Cornelia Huck
Add missing export of dasd_generic_read_dev_chars(). Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-05-10[S390] cio: Get rid of _ccw_device_get_device_number().Cornelia Huck
The function shouldn't have existed in the first place (not MSS-aware). Introduce a new function ccw_device_get_id() that extracts the ccw_dev_id structure of a ccw device and convert all users of _ccw_device_get_device_number to ccw_device_get_id. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-05-04[S390] dasd: New read device characteristics and read configuration data.Cornelia Huck
Instead of the deprecated read_dev_chars() and read_conf_data_lpm(), implement dasd_generic_read_dev_chars() and dasd_eckd_read_conf_lpm(). These should even recover better from error than the original cio functions. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-04-27[S390] dasd: Add ipldev parameter.Peter Oberparleiter
Specifying 'ipldev' in the dasd= kernel parameter will automatically activate the boot device for use by the dasd driver. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-04-27[S390] dasd: Add sysfs attribute status and generate uevents.Horst Hummel
This patch adds a sysfs-attribute 'status' to make the DASD device-status accessible from user-space. In addition, the DASD driver generates an uevent(CHANGE) for the ccw-device on each device-status change. This enables user-space applications (e.g. udev) to do related processing. Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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