- 12 1月, 2008 1 次提交
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由 Christof Schmitt 提交于
When adding an invalid LUN, there is a deadlock between the add via scsi_scan_target and the slave_destroy handler: The handler waits for the scan to complete, but for an invalid unit, scsi_scan_target directly calls the slave_destroy handler. Fix the deadlock by removing the wait in the slave_destroy handler, it was not necessary anyway. Signed-off-by: NChristof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NSwen Schillig <swen@vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
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- 24 10月, 2007 2 次提交
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由 Jens Axboe 提交于
Most drivers need to set length and offset as well, so may as well fold those three lines into one. Add sg_assign_page() for those two locations that only needed to set the page, where the offset/length is set outside of the function context. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Heiko Carstens 提交于
kernel BUG at include/linux/scatterlist.h:50! illegal operation: 0001 [#1] [...] Call Trace: ([<000000000026f184>] zfcp_ns_gid_pn_request+0x4c/0x2a0) [<0000000000276dd4>] zfcp_erp_strategy_do_action+0x1410/0x1938 [<0000000000278412>] zfcp_erp_thread+0x4fa/0x1430 [<000000000001990a>] kernel_thread_starter+0x6/0xc [<0000000000019904>] kernel_thread_starter+0x0/0xc Cc: Swen Schillig <swen@vnet.ibm.com> Cc: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NJens Axboe <axboe@carl.home.kernel.dk>
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- 23 10月, 2007 1 次提交
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由 Jens Axboe 提交于
Based on initial patch from Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 13 10月, 2007 3 次提交
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由 Swen Schillig 提交于
Cleanup the whitepace from the entire zfcp driver to prevent to have those changes in future feature or function patches. Signed-off-by: NSwen Schillig <swen@vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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由 Christof Schmitt 提交于
Already register the debug feature before the zfcp adapter is set online. This allows to use the debug feature to investigate the online/offline sequence. Signed-off-by: NChristof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: NSwen Schillig <swen@vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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由 Christof Schmitt 提交于
zfcp_adapter_enqueue initialized adapter->ccw_device twice with the same value. Remove the second assignment, since it is not necessary. Signed-off-by: NChristof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: NSwen Schillig <swen@vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 16 8月, 2007 1 次提交
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由 Heiko Carstens 提交于
allocate gid_pn_data objects from gid_pn_cache. Allocate gid_pn_data objects from the corresponding cache which ensures proper alignment. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NSwen Schillig <swen@vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 20 7月, 2007 1 次提交
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由 Paul Mundt 提交于
Slab destructors were no longer supported after Christoph's c59def9f 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: NPaul Mundt <lethal@linux-sh.org>
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- 19 7月, 2007 1 次提交
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由 Heiko Carstens 提交于
Get rid of two 'warning: Using plain integer as NULL pointer'. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NSwen Schillig <swen@vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 20 6月, 2007 1 次提交
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由 Christof Schmitt 提交于
When reporting SCSI devices to the SCSI midlayer, use the FCP LUN as LUN reported to the SCSI layer. With this approach, zfcp does not have to create unique LUNS, and this code can be removed. Signed-off-by: NChristof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: NSwen Schillig <swen@vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 16 5月, 2007 1 次提交
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由 Michael Loehr 提交于
IO stall after deleting and path checker changes after reenabling zfcp device Setting one zfcp device offline using chccwdev in a multipath environment and waiting will lead to IO stall on all paths. After setting the zfcp device back online using chccwdev, the devices with io stall will have a different path checker. Devices corresponding to the deleted units are never freed. This has the effect that 'slave_destroy' is never called and zfcp still thinks that this unit is registered (ZFCP_STATUS_UNIT_REGISTERED is still set). Hence the erp routine is not called correctly and the unit is not enabled properly. Do not delete rport and the sdev. Just set the host to block on 'offline'. Setting host online again will then remove the blocked status and everything is fine again. Signed-off-by: NMichael Loehr <mloehr2@linux.vnet.ibm.com> Signed-off-by: NSwen Schillig <swen@vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 10 5月, 2007 1 次提交
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由 Heiko Carstens 提交于
Monthly sparse warning avoidance patch. Sigh. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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- 09 5月, 2007 3 次提交
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由 Heiko Carstens 提交于
Simplify request ID management and make sure that frequently used functions are inlined. Also fix a memory leak in zfcp_adapter_enqueue() which only gets hit in error handling. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NSwen Schillig <swen@vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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由 Christof Schmitt 提交于
The SCSI stack requires low level drivers to register and unregister devices. For zfcp this leads to the situation where zfcp calls the SCSI stack, the SCSI tries to scan the new device and the scan SCSI command fails. This would require the zfcp erp, but the erp thread is already blocked in the register call. The fix is to make sure that the calls from the ERP thread to the SCSI stack do not block the ERP thread. In detail: 1) Use a workqueue to avoid blocking of the scsi_scan_target calls. 2) When removing a unit make sure that no scsi_scan_target call is pending. 3) Replace scsi_flush_work with scsi_target_unblock. This avoids blocking and has the same result. Signed-off-by: NChristof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: NSwen Schillig <swen@vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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由 Christof Schmitt 提交于
S_ID and D_ID are defined in the FCP spec as 3 byte fields. Change the output in zfcp print statements accordingly to print them with only 3 bytes. Signed-off-by: NChristof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: NSwen Schillig <swen@vnet.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 13 2月, 2007 1 次提交
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由 Arjan van de Ven 提交于
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: NArjan van de Ven <arjan@linux.intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 06 2月, 2007 1 次提交
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由 Heiko Carstens 提交于
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 14 12月, 2006 1 次提交
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由 Robert P. J. Day 提交于
Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Greg KH <greg@kroah.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Karsten Keil <kkeil@suse.de> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Ian Kent <raven@themaw.net> Cc: Steven French <sfrench@us.ibm.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 24 9月, 2006 3 次提交
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由 Andreas Herrmann 提交于
This instance will be used whenever a timer is needed for a request by zfcp. Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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由 Andreas Herrmann 提交于
zfcp's eh_abort_handler used the wrong request ID to identify the request to be aborted. The bug was introduced with commit fea9d6c7 for improved management of request IDs. The bug is fixed with this patch. Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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由 Heiko Carstens 提交于
Create private slab caches in order to guarantee proper alignment of data structures that get passed to hardware. Sidenote: with this patch slab cache debugging will finally work on s390 (at least no known problems left). Furthermore this patch does some minor cleanups: - store ptr for transport template in struct zfcp_data Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Compile fix ups and Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 07 8月, 2006 1 次提交
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由 Volker Sameske 提交于
Improve request handling. Use hash table to manage request IDs. Signed-off-by: NVolker Sameske <sameske@de.ibm.com> Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 29 5月, 2006 4 次提交
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由 Ralph Wuerthner 提交于
Signed-off-by: NRalph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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由 Andreas Herrmann 提交于
Removed some macros, struct members and typedefs which were unused or not necessary. Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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由 Andreas Herrmann 提交于
Replace kmalloc/memset by kzalloc or kcalloc. Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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由 Andreas Herrmann 提交于
Copyright update, shortened file headers, shortened author information. Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 27 3月, 2006 1 次提交
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由 Matthew Dobson 提交于
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: NMatthew Dobson <colpatch@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 02 2月, 2006 1 次提交
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由 Heiko Carstens 提交于
- 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: NAndreas Herrmann <aherrman@de.ibm.com> Acked-by: NFrank Pavlic <pavlic@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 15 1月, 2006 1 次提交
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由 Andreas Herrmann 提交于
Added host stats, removed superfluous get_starget_ functions, removed some attributes from zfcp specific sysfs tree (e.g. scsi_host_no, scsi_lun, wwnn and d_id). Host stats are given for the physical adapter port not for the virtual adapter. Reset stats is implemented in the device driver. Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 02 12月, 2005 1 次提交
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由 Heiko Carstens 提交于
Move initialization of locks and lists to adapter allocation function. Otherwise we might end up with some uninitialized locks, like e.g. the erp locks which only will be inititialized if an error recovery thread for an adapter will be started. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 07 11月, 2005 1 次提交
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由 Jesper Juhl 提交于
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: NJesper Juhl <jesper.juhl@gmail.com> Acked-by: NCornelia Huck <cohuck@de.ibm.com> Acked-by: NStefan Bader <Stefan.Bader@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 09 10月, 2005 1 次提交
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由 Al Viro 提交于
- added typedef unsigned int __nocast gfp_t; - replaced __nocast uses for gfp flags with gfp_t - it gives exactly the same warnings as far as sparse is concerned, doesn't change generated code (from gcc point of view we replaced unsigned int with typedef) and documents what's going on far better. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 20 9月, 2005 2 次提交
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由 Maxim Shchetynin 提交于
Debug features (DBFs) els_dbf, cmd_dbf and abt_dbf were removed and san_dbf, hba_dbf and scsi_dbf were introduced. The erp_dbf did not change. The new traces improve debugging of problems with zfcp, scsi-stack, multipath and hardware in the SAN. san_dbf traces things like ELS and CT commands, hba_dbf saves HBA specific information of requests, and scsi_dbf saves FCP and SCSI specific information of requests. Common to all new DBFs is that they provide a so called structured view. This significantly improves readability of the traces. Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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由 Andreas Herrmann 提交于
o union zfcp_req_data removed o increment unit refcount when processing FCP commands (This fixes a theoretical race: When all scsi commands of a unit are aborted and the scsi_device is removed then the unit could be removed before all fsf_requests of that unit are completely processed.) Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 29 8月, 2005 1 次提交
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由 Heiko Carstens 提交于
Bugfix (usage of uninitialized pointer in zfcp_port_dequeue) and compile fixes for the zfcp device driver. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Acked-by: NJames Bottomley <James.Bottomley@steeleye.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 28 8月, 2005 1 次提交
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由 Andreas Herrmann 提交于
This patch fixes a severe problem with 2.6.13-rc7. Due to recent SCSI changes it is not possible to add any LUNs to the zfcp device driver anymore. With registration of remote ports this is fixed. Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Acked-by: NJames Bottomley <jejb@steeleye.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 14 6月, 2005 3 次提交
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由 Andreas Herrmann 提交于
From: Heiko Carstens <heiko.carstens@de.ibm.com> Fixes module parameter parsing for "device" parameter. The original module parameter was changed while parsing it. This corrupted the output in sysfs (/sys/module/zfcp/parameters/device). Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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由 Andreas Herrmann 提交于
Fixes a race between zfcp_fsf_req_dismiss_all and zfcp_qdio_reqid_check. During adapter shutdown it occurred that a request was cleaned up twice. First during its normal completion. Second when dismiss_all was called. The fix is to serialize access to fsf request list between zfcp_fsf_req_dismiss_all and zfcp_qdio_reqid_check and delete a fsf request from the list if its completion is triggered. (Additionally a rwlock was replaced by a spinlock and fsf_req_cleanup was eliminated.) Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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由 Andreas Herrmann 提交于
Fixes the handling of failed requests for GID_PN nameserver command: Set ZFCP_STATUS_PORT_INVALID_WWPN only if indicated by response payload for GID_PN nameserver command and not if fsf request fails. Signed-off-by: NAndreas Herrmann <aherrman@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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