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path: root/drivers/s390
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2010-07-28[SCSI] zfcp: Introduce experimental support for DIF/DIXFelix Beck
Introduce support for DIF/DIX in zfcp: Report the capabilities for the Scsi_host, map the protection data when issuing I/O requests and handle the new error codes. Also add the fsf data_direction field to the hba trace, it is useful information for debugging in that area. This is an EXPERIMENTAL feature for now. Signed-off-by: Felix Beck <felix.beck@de.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Enable data division support for FCP devicesChristof Schmitt
Try to enable data division support for FCP devices and indicate in the adapter status flag if it succeeded. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Prevent access on uninitialized memory.Swen Schillig
Initialize allocated memory to zero to prevent access on error. This prevents a possible error in the error handling path. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Post events through FC transport classSven Schuetz
Post FC transport class netlink events for usage in the userspace, e.g. for HBAAPI. Supported events are those required for the polled events in HBAAPI. - link up - link down - incoming RSCN (events related to FC-AL are not supported, as zfcp has no support for FC-AL) Signed-off-by: Sven Schuetz <sven@linux.vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Cleanup QDIO attachment and improve processing.Swen Schillig
Some definitions and structures in the zfcp QDIO processing are improved by the removal of not required variables and processing steps. I addition the naming of some variables is changed to make their purpose more clear. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Cleanup function parameters for sbal value.Swen Schillig
A lot of functions require the amount of SBALs as one of their parameter which is most times invariable. Therefore remove this parameter and set the SBAL value explicitly if a non standard value is required. In addition the warning message "oversized data" is replaced with a BUG_ON() statement assuring the limits defined and requested by zfcp. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Use correct width for timer_interval fieldChristof Schmitt
The timer_interval is 14 bits in width. Introduce a define for properly masking the value. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Remove SCSI device when removing unitChristof Schmitt
Configuring a LUN in zfcp, also creates a SCSI device. For consistency, it makes sense to remove the SCSI device when the LUN is deconfigured. Replace the flush_work with the call to scsi_remove_device: scsi_remove_device also takes the scan_mutex that synchronizes itself with any long running device discovery. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Use memdup_user and kstrdupChristof Schmitt
Use the functions memdup_user and kstrdup to allocate memory and copy the data in one step, saving some lines of code. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Fix retry after failed "open port" erp actionChristof Schmitt
Trying to enqueue a port erp action from the port erp strategy will fail in zfcp_erp_required_act. To try the same action again, return ZFCP_ERP_FAILED. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Fail erp after timeoutChristof Schmitt
After a timeout notification, do not try to run the erp strategy. Return from the erp with "failed" to possibly trigger a retry. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Use forced_reopen in terminate_rport_io callbackChristof Schmitt
When running in non-NPIV mode, the port_reopen in terminate_rport_io might succeed even though the remote port is not available. If the same port connection is held open from another operating system, the reopen is only a virtual operation and might not hit the SAN. Fix this by changing the call to forced_reopen that forces a logout/login operation in the SAN. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Register SCSI devices after successful fc_remote_port_addChristof Schmitt
When the successful return of an adisc is the final step to set the port online, the registration of SCSI devices might be omitted. SCSI devices that have been removed before (due to a short dev_loss_tmo setting) might not be attached again. The problem is that the registration of SCSI devices is done only after erp has finished. The correct place would be after the call to fc_remote_port_add to mimick the scan in the FC transport class. Change the registration of SCSI devices to be triggered after the fc_remote_port_add call. For the initial inquiry command to succeed, the unit must also be open. If the unit reopen is still pending, the inquiry command to the LUN will be deferred with DID_IMM_RETRY, so there is no harm from this approach. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Do not try "forced close" when port is already closedChristof Schmitt
When the port is already "physically closed" try the reopen instead. There is no way to send a "physically close" to an already closed port. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-28[SCSI] zfcp: Do not unblock rport from REOPEN_PORT_FORCEDChristof Schmitt
When the REOPEN_PORT_FORCED erp action succeeds, the port has been closed. A REOPEN_PORT will try to open the port after the REPORT_PORT_FORCED. The rport should only be unblocked after the successful completion of the reopen port. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-21[SCSI] zfcp: Update status read mempoolChristof Schmitt
Commit 64deb6efdc5504ce97b5c1c6f281fffbc150bd93 changed the way status read buffers are handled but forgot to adjust the mempool to the new size. Add the call to resize the mempool after the exchange config data. Also use the define instead of the hard coded number in the fsf callback for consistency. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-21[SCSI] zfcp: Do not wait for SBALs on stopped queueChristof Schmitt
Trying to read the FC host statistics on an offline adapter results in a 5 seconds wait. Reading the statistics tries to issue an exchange port data request which first waits up to 5 seconds for an entry in the request queue. Change the strategy for getting a free SBAL to exit when the queue is stopped. Reading the statistics will then fail without the wait. Reviewed-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-21[SCSI] zfcp: Fix check whether unchained ct_els is possibleSwen Schillig
A false check was performed whether an unchained ct_els is possible or not. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-06-08[S390] appldata/extmem/kvm: add missing GFP_KERNEL flagHeiko Carstens
Add missing GFP flag to memory allocations. The part in cio only changes a comment. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-26[S390] dasd: unit check handling during internal cio I/OStefan Haberland
React on unit checks during cio internal I/O. Handle as unsolicited interrupt and advice cio to retry. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-26[S390] cio: unit check handling during internal I/OMichael Ernst
Send unit checks that occur during internal I/O to the device driver and react according to its return code. Signed-off-by: Michael Ernst <mernst@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-26[S390] ccwgroup: add locking around drvdata accessSebastian Ott
Several processes may concurrently try to create a group device from the same ccw_device(s). Add locking arround the drvdata access to prevent race conditions. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-26[S390] cio: remove stschSebastian Ott
Since 8821d24cd261aede9b0436cd3252b17a60ccc33a we no longer use the plain stsch inline function but the one which can handle exceptions. Remove the unused function. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-21sysfs: add struct file* to bin_attr callbacksChris Wright
This allows bin_attr->read,write,mmap callbacks to check file specific data (such as inode owner) as part of any privilege validation. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (182 commits) [SCSI] aacraid: add an ifdef'd device delete case instead of taking the device offline [SCSI] aacraid: prohibit access to array container space [SCSI] aacraid: add support for handling ATA pass-through commands. [SCSI] aacraid: expose physical devices for models with newer firmware [SCSI] aacraid: respond automatically to volumes added by config tool [SCSI] fcoe: fix fcoe module ref counting [SCSI] libfcoe: FIP Keep-Alive messages for VPorts are sent with incorrect port_id and wwn [SCSI] libfcoe: Fix incorrect MAC address clearing [SCSI] fcoe: fix a circular locking issue with rtnl and sysfs mutex [SCSI] libfc: Move the port_id into lport [SCSI] fcoe: move link speed checking into its own routine [SCSI] libfc: Remove extra pointer check [SCSI] libfc: Remove unused fc_get_host_port_type [SCSI] fcoe: fixes wrong error exit in fcoe_create [SCSI] libfc: set seq_id for incoming sequence [SCSI] qla2xxx: Updates to ISP82xx support. [SCSI] qla2xxx: Optionally disable target reset. [SCSI] qla2xxx: ensure flash operation and host reset via sg_reset are mutually exclusive [SCSI] qla2xxx: Silence bogus warning by gcc for wrap and did. [SCSI] qla2xxx: T10 DIF support added. ...
2010-05-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1674 commits) qlcnic: adding co maintainer ixgbe: add support for active DA cables ixgbe: dcb, do not tag tc_prio_control frames ixgbe: fix ixgbe_tx_is_paused logic ixgbe: always enable vlan strip/insert when DCB is enabled ixgbe: remove some redundant code in setting FCoE FIP filter ixgbe: fix wrong offset to fc_frame_header in ixgbe_fcoe_ddp ixgbe: fix header len when unsplit packet overflows to data buffer ipv6: Never schedule DAD timer on dead address ipv6: Use POSTDAD state ipv6: Use state_lock to protect ifa state ipv6: Replace inet6_ifaddr->dead with state cxgb4: notify upper drivers if the device is already up when they load cxgb4: keep interrupts available when the ports are brought down cxgb4: fix initial addition of MAC address cnic: Return SPQ credit to bnx2x after ring setup and shutdown. cnic: Convert cnic_local_flags to atomic ops. can: Fix SJA1000 command register writes on SMP systems bridge: fix build for CONFIG_SYSFS disabled ARCNET: Limit com20020 PCI ID matches for SOHARD cards ... Fix up various conflicts with pcmcia tree drivers/net/ {pcmcia/3c589_cs.c, wireless/orinoco/orinoco_cs.c and wireless/orinoco/spectrum_cs.c} and feature removal (Documentation/feature-removal-schedule.txt). Also fix a non-content conflict due to pm_qos_requirement getting renamed in the PM tree (now pm_qos_request) in net/mac80211/scan.c
2010-05-20Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (44 commits) vlynq: make whole Kconfig-menu dependant on architecture add descriptive comment for TIF_MEMDIE task flag declaration. EEPROM: max6875: Header file cleanup EEPROM: 93cx6: Header file cleanup EEPROM: Header file cleanup agp: use NULL instead of 0 when pointer is needed rtc-v3020: make bitfield unsigned PCI: make bitfield unsigned jbd2: use NULL instead of 0 when pointer is needed cciss: fix shadows sparse warning doc: inode uses a mutex instead of a semaphore. uml: i386: Avoid redefinition of NR_syscalls fix "seperate" typos in comments cocbalt_lcdfb: correct sections doc: Change urls for sparse Powerpc: wii: Fix typo in comment i2o: cleanup some exit paths Documentation/: it's -> its where appropriate UML: Fix compiler warning due to missing task_struct declaration UML: add kernel.h include to signal.c ...
2010-05-18Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller
Conflicts: include/linux/mod_devicetable.h scripts/mod/file2alias.c
2010-05-18[SCSI] Merge scsi-misc-2.6 into scsi-rc-fixes-2.6James Bottomley
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-05-17qeth: support the new OSA CHPID types OSX and OSMUrsula Braun
The qeth driver is enabled to support the new OSA CHPID types OSX and OSM. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17drivers/s390/net: Drop memory allocation castJulia Lawall
Drop cast on the result of kmalloc and similar functions. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; @@ - (T *) (\(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\| kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\)(...)) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17[S390] drivers/s390/char: Use kmemdupJulia Lawall
Use kmemdup when some other buffer is immediately copied into the allocated region. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; statement S; @@ - to = \(kmalloc\|kzalloc\)(size,flag); + to = kmemdup(from,size,flag); if (to==NULL || ...) S - memcpy(to, from, size); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] drivers/s390/char: Use kstrdupJulia Lawall
Use kstrdup when the goal of an allocation is copy a string into the allocated region. Additionally drop the now unused variable len. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to; expression flag,E1,E2; statement S; @@ - to = kmalloc(strlen(from) + 1,flag); + to = kstrdup(from, flag); ... when != \(from = E1 \| to = E1 \) if (to==NULL || ...) S ... when != \(from = E2 \| to = E2 \) - strcpy(to, from); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] qdio: remove API wrappersJan Glauber
Remove qdio API wrappers used by qeth and replace them by calling the appropriate functions directly. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] qdio: set correct bit in dsciJan Glauber
The state change indicator is bit 7 not bit 0 of the dsci. Use the correct bit for setting the indicator. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] qdio: dont convert timestamps to microsecondsJan Glauber
Don't convert timestamps to microseconds, use timestamps returned by get_clock() directly. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] qdio: remove memset hackJan Glauber
Remove memset hack that relied on the layout of struct qdio_q to avoid deletion of the slib pointer. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] qdio: prevent starvation on PCI devicesJan Glauber
If adapter interrupts are not available and traditional IO interrupts are used for qdio the inbound tasklet continued to run if new data arrived. That could possibly block other tasklets scheduled on the same CPU. If new data arrives schedule the tasklet again instead of directly processing the new data. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] qdio: count number of qdio interruptsJan Glauber
Add missing increment for the qdio interrupt counter. Signed-off-by: Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] dasd: remove uid from devmapStefan Haberland
Remove the duplicate of the DASD uid from the devmap structure. Use the uid from the device private structure instead. This also removes a lockdep warning complaining about a possible SOFTIRQ-safe -> SOFTIRQ-unsafe lock order. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] dasd: add dynamic pav tolerationStefan Haberland
For base Parallel Access Volume (PAV) there is a fixed mapping of base and alias devices. With dynamic PAV this mapping can be changed so that an alias device is used with another base device. This patch enables the DASD device driver to tolerate dynamic PAV changes. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] avoid default_llseek in s390 driversMartin Schwidefsky
Use nonseekable_open for a couple of s390 device drivers. This avoids the use of default_llseek function which has a dependency on the BKL. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] vmcp: disallow modular buildHeiko Carstens
Change the tristate Kbuild option into a bool option so that the module is either builtin or not available at all. There have been too many cases where people were missing the 'vmcp' device node and unable to send z/VM CP commands. So let's make sure that on distros it will always be present. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] idle time accounting vs. machine checksMartin Schwidefsky
A machine check can interrupt the i/o and external interrupt handler anytime. If the machine check occurs while the interrupt handler is waking up from idle vtime_start_cpu can get executed a second time and the int_clock / async_enter_timer values in the lowcore get clobbered. This can confuse the cpu time accounting. To fix this problem two changes are needed. First the machine check handler has to use its own copies of int_clock and async_enter_timer, named mcck_clock and mcck_enter_timer. Second the nested execution of vtime_start_cpu has to be prevented. This is done in s390_idle_check by checking the wait bit in the program status word. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-17[S390] More cleanup for struct _lowcoreMartin Schwidefsky
Remove cpu_id from lowcore and replace addr_t with __u64. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-16qeth: synchronize configuration interfaceFrank Blaschka
Synchronize access to the drivers configuration interface. Also do not allow configuration changes during online/offline transition. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-16qeth: new message if OLM limit is reachedUrsula Braun
z/OS may activate Optimized Latency Mode (OLM) for a connection through an OSA Express3 adapter, which reduces the number of allowed concurrent connections, if adapter is used in shared mode. Create a meaningful message, if activation of an OSA-connection fails due to an active OLM-connection on the shared OSA-adapter. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-16qeth: exploit HW TX checksummingFrank Blaschka
OSA supports HW TX checksumming in layer 3 mode. Enable this feature and remove software fallback used for TSO. Cleanup checksum bits to indicate OSA can do checksumming only for IPv4 TCP and UDP. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12[S390] dasd: fix race between tasklet and dasd_sleep_onStefan Weinhuber
The various dasd_sleep_on functions use a global wait queue when waiting for a cqr. The wait condition checks the status and devlist fields of the cqr to determine if it is safe to continue. This evaluation may return true, although the tasklet has not finished processing of the cqr and the callback function has not been called yet. When the callback is finally called, the data in the cqr may already be invalid. The sleep_on wait condition needs a safe way to determine if the tasklet has finished processing. Use the callback_data field of the cqr to store a token, which is set by the callback function itself. Cc: <stable@kernel.org> Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-05-12Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: Documentation/feature-removal-schedule.txt drivers/net/wireless/ath/ar9170/usb.c drivers/scsi/iscsi_tcp.c net/ipv4/ipmr.c
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