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2009-04-07hwmon: (lm95241) Convert to new-style i2c driverJean Delvare1-65/+47
The legacy i2c binding model is going away really soon now, so convert the lm95241 driver to the new binding model or it will break. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Davide Rizzo <elpa.rizzo@gmail.com>
2009-04-07ftrace: Correct a text align for event format outputZhaolei1-1/+1
If we cat debugfs/tracing/events/ftrace/bprint/format, we'll see: name: bprint ID: 6 format: field:unsigned char common_type; offset:0; size:1; field:unsigned char common_flags; offset:1; size:1; field:unsigned char common_preempt_count; offset:2; size:1; field:int common_pid; offset:4; size:4; field:int common_tgid; offset:8; size:4; field:unsigned long ip; offset:12; size:4; field:char * fmt; offset:16; size:4; field: char buf; offset:20; size:0; print fmt: "%08lx (%d) fmt:%p %s" There is an inconsistent blank before char buf. Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> LKML-Reference: <49D5E3EE.70201@cn.fujitsu.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07Update /debug/tracing/READMENikanth Karthikesan1-2/+2
Some of the tracers have been renamed, which was not updated in the in-kernel run-time README file. Update it. Signed-off-by: Nikanth Karthikesan <knikanth@suse.de> LKML-Reference: <200903231158.32151.knikanth@suse.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07tracing/ftrace: alloc the started cpumask for the trace fileFrederic Weisbecker1-1/+12
Impact: fix a crash while cat trace file Currently we are using a cpumask to remind each cpu where a trace occured. It lets us notice the user that a cpu just had its first trace. But on latest -tip we have the following crash once we cat the trace file: IP: [<c0270c4a>] print_trace_fmt+0x45/0xe7 *pde = 00000000 Oops: 0000 [#1] PREEMPT SMP last sysfs file: /sys/class/net/eth0/carrier Pid: 3897, comm: cat Not tainted (2.6.29-tip-02825-g0f22972-dirty #81) EIP: 0060:[<c0270c4a>] EFLAGS: 00010297 CPU: 0 EIP is at print_trace_fmt+0x45/0xe7 EAX: 00000000 EBX: 00000000 ECX: c12d9e98 EDX: ccdb7010 ESI: d31f4000 EDI: 00322401 EBP: d31f3f10 ESP: d31f3efc DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Process cat (pid: 3897, ti=d31f2000 task=d3b3cf20 task.ti=d31f2000) Stack: d31f4080 ccdb7010 d31f4000 d691fe70 ccdb7010 d31f3f24 c0270e5c d31f4000 d691fe70 d31f4000 d31f3f34 c02718e8 c12d9e98 d691fe70 d31f3f70 c02bfc33 00001000 09130000 d3b46e00 d691fe98 00000000 00000079 00000001 00000000 Call Trace: [<c0270e5c>] ? print_trace_line+0x170/0x17c [<c02718e8>] ? s_show+0xa7/0xbd [<c02bfc33>] ? seq_read+0x24a/0x327 [<c02bf9e9>] ? seq_read+0x0/0x327 [<c02ab18b>] ? vfs_read+0x86/0xe1 [<c02ab289>] ? sys_read+0x40/0x65 [<c0202d8f>] ? sysenter_do_call+0x12/0x3c Code: 00 00 00 89 45 ec f7 c7 00 20 00 00 89 55 f0 74 4e f6 86 98 10 00 00 02 74 45 8b 86 8c 10 00 00 8b 9e a8 10 00 00 e8 52 f3 ff ff <0f> a3 03 19 c0 85 c0 75 2b 8b 86 8c 10 00 00 8b 9e a8 10 00 00 EIP: [<c0270c4a>] print_trace_fmt+0x45/0xe7 SS:ESP 0068:d31f3efc CR2: 0000000000000000 ---[ end trace aa9cf38e5ebed9dd ]--- This is because we alloc the iter->started cpumask on tracing_pipe_open but not on tracing_open. It hadn't been noticed until now because we need to have ring buffer overruns to activate the starting of cpu buffer detection. Also, we need a check to not print the messagge for the first trace on the file. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1238619188-6109-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07tracing, x86: remove duplicated #includeHuang Weiyi1-1/+0
Remove duplicated #include in arch/x86/kernel/ftrace.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> LKML-Reference: <1238503291-2532-1-git-send-email-weiyi.huang@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07ftrace: Add check of sched_stopped for probe_sched_wakeupZhaolei1-0/+3
The wakeup tracing in sched_switch does not stop when a user disables tracing. This is because the probe_sched_wakeup() is missing the check to prevent the wakeup from being traced. Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> LKML-Reference: <49D1C543.3010307@cn.fujitsu.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07function-graph: add proper initialization for init taskSteven Rostedt2-2/+8
Impact: fix to crash going to kexec The init task did not properly initialize the function graph pointers. Altough these pointers are NULL, they can not be assumed to be NULL for the init task, and must still be properly initialize. This usually is not an issue since a problem only arises when a task exits, and the init tasks do not usually exit. But when doing tests with kexec, the init tasks do exit, and the bug appears. This patch properly initializes the init tasks function graph data structures. Reported-and-Tested-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <alpine.DEB.2.00.0903252053080.5675@gandalf.stny.rr.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07tracing/ftrace: fix missing include string.hFrederic Weisbecker1-0/+1
Building a kernel with tracing can raise the following warning on tip/master: kernel/trace/trace.c:1249: error: implicit declaration of function 'vbin_printf' We are missing an include to string.h Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1238160130-7437-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07tracing: fix incorrect return type of ns2usecs()Lai Jiangshan3-4/+3
Impact: fix time output bug in 32bits system ns2usecs() returns 'long', it's incorrect. (In i386) ... <idle>-0 [000] 521.442100: _spin_lock <-tick_do_update_jiffies64 <idle>-0 [000] 521.442101: do_timer <-tick_do_update_jiffies64 <idle>-0 [000] 521.442102: update_wall_time <-do_timer <idle>-0 [000] 521.442102: update_xtime_cache <-update_wall_time .... (It always print the time less than 2200 seconds besides ...) Because 'long' is 32bits in i386. ( (1<<31) useconds is about 2200 seconds) ... <idle>-0 [001] 4154502640.134759: rcu_bh_qsctr_inc <-__do_softirq <idle>-0 [001] 4154502640.134760: _local_bh_enable <-__do_softirq <idle>-0 [001] 4154502640.134761: idle_cpu <-irq_exit ... (very large value) Because 'long' is a signed type and it is 32bits in i386. Changes in v2: return 'unsigned long long' instead of 'cycle_t' Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> LKML-Reference: <49D05D10.4030009@cn.fujitsu.com> Reported-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07tracing: remove CALLER_ADDR2 from wakeup tracerSteven Rostedt1-1/+7
Maneesh Soni was getting a crash when running the wakeup tracer. We debugged it down to the recording of the function with the CALLER_ADDR2 macro. This is used to get the location of the caller to schedule. But the problem comes when schedule is called by assmebly. In the case that Maneesh had, retint_careful would call schedule. But retint_careful does not set up a proper frame pointer. CALLER_ADDR2 is defined as __builtin_return_address(2). This produces the following assembly in the wakeup tracer code. mov 0x0(%rbp),%rcx <--- get the frame pointer of the caller mov %r14d,%r8d mov 0xf2de8e(%rip),%rdi mov 0x8(%rcx),%rsi <-- this is __builtin_return_address(1) mov 0x28(%rdi,%rax,8),%rbx mov (%rcx),%rax <-- get the frame pointer of the caller's caller mov %r12,%rcx mov 0x8(%rax),%rdx <-- this is __builtin_return_address(2) At the reading of 0x8(%rax) Maneesh's machine would take a fault. The reason is that retint_careful did not set up the return address and the content of %rax here was zero. To verify this, I sent Maneesh a patch to create a frame pointer in retint_careful. He ran the test again but this time he would take the same type of fault from sysret_careful. The retint_careful was no longer an issue, but there are other callers that still have issues. Instead of adding frame pointers for all callers to schedule (in possibly all archs), it is much safer to simply not use CALLER_ADDR2. This loses out on knowing what called schedule, but the function tracer will help there if needed. Reported-by: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07loop: mutex already unlocked in loop_clr_fd()Alexander Beregalov1-2/+5
mount/1865 is trying to release lock (&lo->lo_ctl_mutex) at: but there are no more locks to release! mutex is already unlocked in loop_clr_fd(), we should not try to unlock it in lo_release() again. Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-04-07Merge branch 'tracing/blktrace-fixes' into tracing/urgentIngo Molnar2-3/+5
Merge reason: this used to be a tracing/blktrace-v2 devel topic still cooking during the merge window - has propagated to fixes Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07ASoC: TWL4030: Compillation error fixPeter Ujfalusi1-4/+6
Fix for compillation error introduced by the constrain patch. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-04-07cfq-iosched: don't let idling interfere with pluggingJens Axboe1-8/+17
When CFQ is waiting for a new request from a process, currently it'll immediately restart queuing when it sees such a request. This doesn't work very well with streamed IO, since we then end up splitting IO that would otherwise have been merged nicely. For a simple dd test, this causes 10x as many requests to be issued as we should have. Normally this goes unnoticed due to the low overhead of requests at the device side, but some hardware is very sensitive to request sizes and there it can cause big slow downs. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-04-07i2c: imx: Make disable_delay a per-device variableWolfram Sang1-4/+3
'disable_delay' was static which is wrong as it is calculated using the per-device bus speed. This patch turns 'disable_delay' into a per-device variable. Reported-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Darius Augulis <augulis.darius@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c: xtensa s6000 i2c driverOskar Schirmer5-0/+507
Support for the s6000 on-chip i2c controller. Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07powerpc/85xx: i2c-mpc: use new I2C bindings for the Socates boardWolfgang Grandegger1-4/+4
Preserve I2C clock settings for the Socrates MPC8544 board. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c: i2c-mpc: make I2C bus speed configurableWolfgang Grandegger1-20/+242
This patch makes the I2C bus speed configurable by using the I2C node property "clock-frequency". If the property is not defined, the old fixed clock settings will be used for backward comptibility. The generic I2C clock properties, especially the CPU-specific source clock pre-scaler are defined via the OF match table: static const struct of_device_id mpc_i2c_of_match[] = { ... {.compatible = "fsl,mpc8543-i2c", .data = &(struct fsl_i2c_match_data) { .setclock = mpc_i2c_setclock_8xxx, .prescaler = 2, }, }, The "data" field defines the relevant I2C setclock function and the relevant pre-scaler for the I2C source clock frequency. It uses arch-specific tables and functions to determine resonable Freqency Divider Register (fdr) values for MPC83xx, MPC85xx, MPC86xx, MPC5200 and MPC5200B. The i2c->flags field and the corresponding FSL_I2C_DEV_* definitions have been removed as they are obsolete. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c: i2c-mpc: use dev based printout functionWolfgang Grandegger1-14/+17
This patch used the dev_dbg, dev_err, etc. functions for debug and error output instead of printk and pr_debug. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c: i2c-mpc: various coding style fixesWolfgang Grandegger1-17/+18
Fix errors reported by checkpatch (indention, long lines, trailing white space, etc.). Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c: imx: Add missing request_mem_region in probe()Darius Augulis1-5/+13
Signed-off-by: Darius Augulis <augulis.darius@gmail.com> [ben-linux@fluff.org: fix minor patch fault in remove] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c: i2c-s3c2410: Initialise Samsung I2C controller earlyMark Brown1-2/+1
This is required in order to ensure that core system devices such as voltage regulators attached via I2C are avaiable early in boot. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c-s3c2410: Simplify bus frequency calculationDaniel Silverstone7-65/+37
The platform data for the i2c-s3c2410 driver used to allow a min, max and desired frequency for the I2C bus. This patch reduces it to simply a desired frequency ceiling and corrects all the uses of the platform data appropriately. This means, for example, that on a system with a 66MHz fclk, a request for 100KHz will achieve 65KHz which is safe and acceptable, rather than 378KHz which it would have achieved without this change. Signed-off-by: Simtec Linux Team <linux@simtec.co.uk> Signed-off-by: Daniel Silverstone <dsilvers@simtec.co.uk> [ben-linux@fluff.org: tidy subject and description] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c-s3c2410: sda_delay should be in ns, not clock ticksBen Dooks3-7/+21
The sda_delay field should be specified in ns, not in clock ticks as when using cpufreq we could be changing the bus rate. Signed-off-by: Ben Dooks <ben@simtec.co.uk>
2009-04-07i2c: iMX/MXC supportDarius Augulis4-0/+653
Implementation of I2C Adapter/Algorithm Driver for I2C Bus integrated in Freescale's i.MX/MXC processors. Signed-off-by: Darius Augulis <augulis.darius@gmail.com> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07Merge branch 'linus' into core/softlockupIngo Molnar8557-359622/+934152
Conflicts: kernel/sysctl.c
2009-04-07Revert "module: remove the SHF_ALLOC flag on the __versions section."Rusty Russell1-3/+0
This reverts commit 9cb610d8e35fe3ec95a2fe2030b02f85aeea83c1. This was an impressively stupid patch. Firstly, we reset the SHF_ALLOC flag lower down in the same function, so the patch was useless. Even better, find_sec() ignores sections with SHF_ALLOC not set, so it breaks CONFIG_MODVERSIONS=y with CONFIG_MODULE_FORCE_LOAD=n, which refuses to load the module since it can't find the __versions section. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-04-07block: remove unused REQ_UNPLUGJens Axboe2-4/+0
The request inherits the unplug flag from the bio, but it isn't actually used. The bio flag stops at __make_request(), which tells it to unplug after submission. Passing it on to the request doesn't make any sense. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-04-07cfq-iosched: kill two unused cfqq flagsJens Axboe1-14/+1
We only manipulate the must_dispatch and queue_new flags, they are not tested anymore. So get rid of them. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-04-07softlockup: make DETECT_HUNG_TASK default depend on DETECT_SOFTLOCKUPIngo Molnar1-1/+1
Don't offer a default-y option when the user has turned off CONFIG_DETECT_SOFTLOCKUP already. Do offer it as 'y' only if DETECT_SOFTLOCKUP is on already. This makes it match previous behavior - where the hung-task check was embedded i CONFIG_DETECT_SOFTLOCKUP code. Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07cfq-iosched: change dispatch logic to deal with single requests at the timeJens Axboe1-76/+90
The IO scheduler core calls into the IO scheduler dispatch_request hook to move requests from the IO scheduler and into the driver dispatch list. It only does so when the dispatch list is empty. CFQ moves several requests to the dispatch list, which can cause higher latencies if we suddenly have to switch to some important sync IO. Change the logic to move one request at the time instead. This should almost be functionally equivalent to what we did before, except that we now honor 'quantum' as the maximum queue depth at the device side from any single cfqq. If there's just a single active cfqq, we allow up to 4 times the normal quantum. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-04-07powerpc/85xx: TQM8548: update defconfigWolfgang Grandegger1-116/+48
Enable highmem support for the TQM8548-AG modules and NAND support for the TQM8548-BE modules. Furthermore disable USB, Wireless and IDE support because it's not available on the STK85xx starter kit. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-04-07powerpc/85xx: TQM8548: use proper phy-handles for enet2 and enet3Wolfgang Grandegger2-4/+4
For enet2 and enet3 the wrong phy-handles have been used in DTS files of the TQM8548 modules. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-04-07powerpc/85xx: TQM85xx: correct address of LM75 I2C device nodesWolfgang Grandegger6-12/+12
Commit 0f73a449a649acfca91404a98a35353a618b9555 added I2C device nodes for the LM75 thermal sensor on the TQM85xx modules, unfortunately with the wrong I2C address. The LM75s are located at address 0x48. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-04-07powerpc: Add support for early tlbilx opcodeKumar Gala4-3/+30
During the ISA 2.06 development the opcode for tlbilx changed and some early implementations used to old opcode. Add support for a MMU_FTR fixup to deal with this. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-04-07powerpc: Fix tlbilx opcodeKumar Gala1-1/+1
The tlbilx opcode was not matching the Power ISA 2.06 arch spec. The old opcode was an early suggested opcode that changed during the 2.06 architecture process. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-04-07x86, intel-iommu: fix X2APIC && !ACPI build failureDavid Woodhouse1-5/+1
This build failure: | drivers/pci/dmar.c:47: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘dmar_tbl_size’ | drivers/pci/dmar.c:62: warning: ‘struct acpi_dmar_device_scope’ declared inside parameter list | drivers/pci/dmar.c:62: warning: its scope is only this definition or declaration, which is probably not what you want Triggers due to this commit: d0b03bd: x2apic/intr-remap: decouple interrupt remapping from x2apic Which exposed a pre-existing but dormant fragility of the 'select X86_X2APIC' it moved around and turned that fragility into a build failure. Replace it with a proper 'depends on' construct. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> LKML-Reference: <1239084280.22733.404.camel@macbook.infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07mflash: initial supportunsik Kim6-0/+1315
This driver supports mflash IO mode for linux. Mflash is embedded flash drive and mainly targeted mobile and consumer electronic devices. Internally, mflash has nand flash and other hardware logics and supports 2 different operation (ATA, IO) modes. ATA mode doesn't need any new driver and currently works well under standard IDE subsystem. Actually it's one chip SSD. IO mode is ATA-like custom mode for the host that doesn't have IDE interface. Followings are brief descriptions about IO mode. A. IO mode based on ATA protocol and uses some custom command. (read confirm, write confirm) B. IO mode uses SRAM bus interface. C. IO mode supports 4kB boot area, so host can boot from mflash. This driver is quitely similar to a standard ATA driver, but because of following reasons it is currently seperated with ATA layer. 1. ATA layer deals standard ATA protocol. ATA layer have many low- level device specific interface, but data transfer keeps ATA rule. But, mflash IO mode doesn't. 2. Even though currently not used in mflash driver code, mflash has some custom command and modes. (nand fusing, firmware patch, etc) If this feature supported in linux kernel, ATA layer more altered. 3. Currently PATA platform device driver doesn't support interrupt. (I'm not sure) But, mflash uses interrupt (polling mode is just for debug). 4. mflash is somewhat under-develop product. Even though some company already using mflash their own product, I think more time is needed for standardization of custom command and mode. That time (maybe October) I will talk to with ATA people. If they accept integration, I will integrate. Signed-off-by: unsik Kim <donari75@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-04-07cciss: change to discover first memory BARMike Miller1-5/+14
Add a method for discovering the first memory BAR. All Smart Array controllers to date have always had the the memory BAR as the first BAR. A new controller to be released later this year breaks that model. Signed-off-by: Mike Miller <mike.miller@hp.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-04-07cciss: kernel scan thread for MSA2012Mike Miller3-2/+111
The MSA2012 cannot inform the driver of configuration changes since all management is out of band. This is a departure from any storage we have supported in the past. We need some way to detect changes on the topology so we implement this kernel thread. In some instances there's nothing we can do from the driver (like LUN failure) so just print out a message. In the case where logical volumes are added or deleted we call rebuild_lun_table to refresh the driver's view of the world. Signed-off-by: Mike Miller <mike.miller@hp.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-04-07cciss: fix residual count for block pc requestsJens Axboe1-1/+9
We must complete the full request, so store the request count and then set the ->data_len to the residual count from the hardware. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-04-07block: fix inconsistency in I/O stat accounting codeJerome Marchand6-26/+33
This forces in_flight to be zero when turning off or on the I/O stat accounting and stops updating I/O stats in attempt_merge() when accounting is turned off. Signed-off-by: Jerome Marchand <jmarchan@redhat.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-04-07block: elevator quiescing helpersJens Axboe2-13/+31
Simple helper functions to quiesce the request queue. These are currently only used for switching IO schedulers on-the-fly, but we can use them to properly switch IO accounting on and off as well. Signed-off-by: Jerome Marchand <jmarchan@redhat.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-04-07tomoyo: remove "undelete domain" command.Tetsuo Handa3-100/+5
Since TOMOYO's policy management tools does not use the "undelete domain" command, we decided to remove that command. Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp> Signed-off-by: James Morris <jmorris@namei.org>
2009-04-07ACPI: delete acpi_device.g_listLen Brown2-14/+4
unused Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-07NULL noise: drivers/platform/x86/panasonic-laptop.cHannes Eder1-1/+1
Fix this sparse warning: drivers/platform/x86/panasonic-laptop.c:273:70: warning: Using plain integer as NULL pointer Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-07ACPI: cpufreq: remove dupilcated #includeHuang Weiyi1-1/+0
Remove dupilicated #include in arch/x86/kernel/cpu/cpufreq/longhaul.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-07ACPI: Adjust Kelvin offset to match local implementationJean Delvare1-7/+34
The exact offset between Kelvin and degree Celsius is 273.15. However ACPI handles temperature values with a single decimal place. As a consequence, some implementations use an offset of 273.1 and others use an offset of 273.2. Try to find out which one is being used, to present the most accurate and visually appealing number. Tested on a Sony Vaio PGC-GR214EP (which uses 273.1) and a Lenovo Thinkpad T60p (which uses 273.2). Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-07powerpc: Fix oops when loading modulesPaul Mackerras1-2/+4
This fixes a problem reported by Sean MacLennan where loading any module would cause an oops. We weren't marking the pages containing the module text as having hardware execute permission, due to a bug introduced in commit 8d1cf34e ("powerpc/mm: Tweak PTE bit combination definitions"), hence trying to execute the module text caused an exception on processors that support hardware execute permission. This adds _PAGE_HWEXEC to the definitions of PAGE_KERNEL_X and PAGE_KERNEL_ROX to fix this problem. Reported-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc: Wire up preadv and pwritevStephen Rothwell2-1/+6
[paulus@samba.org: changed to use syscall numbers 320 and 321 since perf_counters is currently using 319.] Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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