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2012-03-22btrfs: Fix busyloop in transaction_kthread()Jan Kara
When a filesystem got aborted due do error, transaction_kthread() will busyloop. Fix it by going to sleep in that case as well. Maybe we should just stop transaction_kthread() when filesystem is aborted but that would be more complex. Signed-off-by: Jan Kara <jack@suse.cz>
2012-03-22btrfs: replace many BUG_ONs with proper error handlingJeff Mahoney
btrfs currently handles most errors with BUG_ON. This patch is a work-in- progress but aims to handle most errors other than internal logic errors and ENOMEM more gracefully. This iteration prevents most crashes but can run into lockups with the page lock on occasion when the timing "works out." Signed-off-by: Jeff Mahoney <jeffm@suse.com>
2012-03-22netfilter: xt_LOG: use CONFIG_IP6_NF_IPTABLES instead of CONFIG_IPV6Pablo Neira Ayuso
This fixes the following linking error: xt_LOG.c:(.text+0x789b1): undefined reference to `ip6t_ext_hdr' ifdefs have to use CONFIG_IP6_NF_IPTABLES instead of CONFIG_IPV6. Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-03-22drm/nouveau: add bios connector type for dms59Ben Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-22drm/nouveau: move out of staging driversBen Skeggs
There's really no good reason for us to be in here anymore, we have to maintain this ABI anyway to avoid angering people. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-22drm/nouveau: bump version to 1.0.0Ben Skeggs
The time has come to get a proper version number that we can change to indicate new features etc, rather than the lock-step 0.0.XX that we previously had. libdrm has recognised this version as compatible with 0.0.16 since 2.4.22, so hopefully any breakage people see should be very minimal. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-22drm/nvd0/disp: ignore clock set if no pclkBen Skeggs
This happens somehow during init on a machine I have, and leads to a divide-by-zero. Lets avoid that... Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-22drm/nouveau: oops, increase channel dispc_vma to 4Ben Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-22drm/nouveau: inform userspace of new kernel subchannel requirementsBen Skeggs
All available subchannels are now available for userspace to do with as it pleases on NVC0+. On all earlier chipsets, the kernel still uses a software object on subc 0 to implement the page flip completion method. I hope to find some decent way of addressing this too, but it's a tad tricker prior to fermi. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-22drm/nouveau: remove m2mf creation on userspace channelsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-22drm/nvc0-/disp: reimplement flip completion method as fifo methodBen Skeggs
Removes need for M2MF subchannel usage on NVC0+. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-22drm/nouveau: move fence sequence check to start of loopBen Skeggs
I want to be able to use REF_CNT from other places in the kernel without pushing a fence object onto the list of emitted fences. The current code makes an assumption that every time the acked sequence is bumped that there's at least one fence on the list that'll be signalled. This will no longer be true in the near future. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-22drm/nouveau: remove subchannel names from places where it doesn't matterBen Skeggs
These are FIFO methods, it doesn't matter what subchannel is being used. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-22drm/nouveau/ttm: always do buffer moves on kernel channelBen Skeggs
There was once good reasons for wanting the drm to be able to use M2MF etc on user channels, but they're not relevant anymore. For the general buffer move case, we've already lost by transferring between vram/sysmem already so the context switching overhead is minimal in comparison. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-22ACPI: Do cpufreq clamping for throttling per package v2Andi Kleen
On Intel CPUs the processor typically uses the highest frequency set by any logical CPU. When the system overheats Linux first forces the frequency to the lowest available one to lower the temperature. However this was done only per logical CPU, which means all logical CPUs in a package would need to go through this before the frequency is actually lowered. Worse this delay actually prevents real throttling, because the real throttle code only proceeds when the lowest frequency is already reached. So when a throttle event happens force the lowest frequency for all CPUs in the package where it happened. The per CPU state is now kept per package, not per logical CPU. An alternative would be to do it per cpufreq unit, but since we want to bring down the temperature of the complete chip it's better to do it for all. In principle it may even make sense to do it for all CPUs, but I kept it on the package for now. With this change the frequency is actually lowered, which in terms also allows real throttling to proceed. I also removed an unnecessary per cpu variable initialization. v2: Fix package mapping Cc: <stable@vger.kernel.org> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: Debugger: Add missing object info to namespace dumpBob Moore
Many namespace node types must have an attached object. For these node types, print a message about a missing object during a namespace dump. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: Change exception code for invalid pathname in acpi_evaluate_objectBob Moore
Change the returned exception code from AE_BAD_PARAMETER to the more appropriate AE_BAD_PATHNAME, when the input pathname to evaluate object is invalid. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: Clarify METHOD_NAME* defines for full-pathname casesBob Moore
Changed the METHOD_NAME* defines that define a full pathname to the method to METHOD_PATHNAME* in order to make it clear that it is not a simple 4-character ACPI name. Used for the various sleep/wake methods. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: Update to version 20120215Bob Moore
Version 20120215. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: Add table-driven dispatch for sleep/wake functionsBob Moore
Simplifies the code, especially the compile-time ACPI_REDUCED_HARDWARE option. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: Split sleep/wake functions into two filesBob Moore
The functions for the original/legacy sleep/wake registers are in hwsleep.c, and the functions for the new extended FADT V5 sleep registers are in hwesleep.c Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: Distill multiple sleep method functions to a single functionBob Moore
Adds acpi_hw_execute_sleep_method to handle the various sleep methods such as _GTS, _BFS, _WAK, and _SST. Removes the specialized functions previously used for each of these methods. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: Add acpi_os_physical_table_override interfaceBob Moore
This interface allows the host to override a table via a physical address, instead of the logical address required by acpi_os_table_override. This simplifies the host implementation. Initial implementation by Thomas Renninger. ACPICA implementation creates a single function for table overrides that attempts both a logical and a physical override. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: ACPI 5: Update debug output for new notify valuesBob Moore
Add new notify values, add support for "hardware specific" notifies. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: Expand OSL memory read/write interfaces to 64 bitsBob Moore
This change expands acpi_os_read_memory and acpi_os_write_memory to a full 64 bits. This allows 64 bit transfers via the acpi_read and acpi_write interfaces. Note: The internal acpi_hw_read and acpi_hw_write interfaces remain at 32 bits, because 64 bits is not needed to access the standard ACPI registers. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: Support for custom ACPICA build for ACPI 5 reduced hardwareBob Moore
Add ACPI_REDUCED_HARDWARE flag that removes all hardware-related code (about 10% code, 5% static data). Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: Move ACPI timer prototypes to public acpixf fileBob Moore
These prototypes were incorrectly declared in achware.h. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: ACPI 5: Support for new FADT SleepStatus, SleepControl registersBob Moore
Adds sleep and wake support for systems with these registers. One new file, hwxfsleep.c Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22ACPICA: Update _REV return value to 5Bob Moore
_REV returns the supported ACPI revision level, which is now 5. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22Merge branch 'stable/for-x86-for-3.4' of ↵Len Brown
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into tboot
2012-03-22ARM: davinci: Fix for cpuidle consolidation changesRobert Lee
The recent cpuidle consolidation changes erroneously omitted one critical line of code. Signed-off-by: Robert Lee <rob.lee@linaro.org> Tested-by: Sekhar Nori <nsekhar@ti.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22thermal: Fix for setting the thermal zone mode to enable/disableAmit Daniel Kachhap
Basically without this patch changing the mode of thermal zone is not possible as wrong string size is passed to strncmp. Signed-off-by: Amit Daniel Kachhap <amit.kachhap@linaro.org> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22thermal: spear13xx: checking for NULL instead of IS_ERR()Dan Carpenter
thermal_zone_device_register() never returns NULL, on error it returns and ERR_PTR(). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Viresh Kumar <viresh.kumar@st.com> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@st.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22thermal/spear_thermal: replace readl/writel with lighter _relaxed variantsViresh Kumar
readl/writel versions for ARM contain memory barrier instruction for synchronizing DMA buffers. These are not required at least on this module. So use lighter _relaxed variants. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22thermal: add support for thermal sensor present on SPEAr13xx machinesVincenzo Frascino
ST's SPEAr13xx machines are based on CortexA9 ARM processors. These machines contain a thermal sensor for junction temperature monitoring. This patch adds support for this thermal sensor in existing thermal framework. [akpm@linux-foundation.org: little code cleanup] [akpm@linux-foundation.org: print the pointer correctly] [viresh.kumar@st.com: thermal/spear_thermal: add compilation dependency on PLAT_SPEAR] Signed-off-by: Vincenzo Frascino <vincenzo.frascino@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22thermal_sys: convert printks to pr_<level>Joe Perches
Use the current logging style. Remove PREFIX, add pr_fmt, convert the printks. All dmesg output now prefixed with "thermal_sys: ". Signed-off-by: Joe Perches <joe@perches.com> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22thermal_sys: kernel style cleanupsJoe Perches
Just a few tidies to make it more like most kernel sources. A couple of long lines still remain. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Jesper Juhl <jj@chaosbits.net> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22thermal_sys: remove obfuscating used-once macrosJoe Perches
These don't add any value as they are used only once and the surrounding code uses similar variable. Signed-off-by: Joe Perches <joe@perches.com> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22thermal_sys: remove unnecessary line continuationsJoe Perches
Line continations are not necessary in function calls or statements. Remove them. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Jesper Juhl <jj@chaosbits.net> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-22drivers/thermal/thermal_sys.c: fix build warningFabio Estevam
With CONFIG_NET=n: drivers/thermal/thermal_sys.c:63: warning: 'thermal_event_seqnum' defined but not used Move 'thermal_event_seqnum' definition inside the '#ifdef CONFIG_NET' [akpm@linux-foundation.org: make thermal_event_seqnum local to generate_netlink_event()] Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Durgadoss R <durgadoss.r@intel.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-21vfs: remove unused superblock helpersArtem Bityutskiy
Remove the 'sb_mark_dirty()', 'sb_mark_clean()' and 'sb_is_dirty()' helpers which are not used. I introduced them 2 years and the intention was to make all file-systems use them in order to be able to optimize 'sync_supers()'. However, Al Viro vetoed my patches at the end and asked me to push superblock management down to file-systems and get rid of the 's_dirt' flag completely, as well as kill 'sync_supers()' altogether. Thus, remove the helpers. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-03-21mm: export dirty_writeback_intervalArtem Bityutskiy
Export 'dirty_writeback_interval' to make it visible to file-systems. We are going to push superblock management down to file-systems and get rid of the 'sync_supers' kernel thread completly. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-03-21ext4: remove useless s_dirt assignmentArtem Bityutskiy
Clean-up ext4 a tiny bit by removing useless s_dirt assignment in 'ext4_fill_super()' because a bit later we anyway call 'ext4_setup_super()' which writes the superblock to the media unconditionally. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-03-21ext4: write superblock only once on unmountArtem Bityutskiy
In some rather rare cases it is possible that ext4 may the superblock to the media twice. This patch makes sure this does not happen. This should speed up unmounting in those cases. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-03-21ext4: do not mark superblock as dirty unnecessarilyArtem Bityutskiy
Commit a0375156ca1041574b5d47cc7e32f10b891151b0 cleaned up superblock dirtying handling, but missed one place. This patch does what was intended: if we have the journal, then we update the superblock through the journal rather than doing this directly. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-03-21ext4: correct ext4_punch_hole return codesAllison Henderson
ext4_punch_hole returns -ENOTSUPP but it should be using -EOPNOTSUPP Signed-off-by: Allison Henderson <achender@linux.vnet.ibm.com> Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-03-21l2tp: enable automatic module loading for l2tp_pppBenjamin LaHaise
When L2TP is configured as a module, requests for L2TP sockets do not result in the l2tp_ppp module being loaded. Fix this by adding the appropriate MODULE_ALIAS to be recognized by pppox's request_module() call. Signed-off-by: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-21cnic: Fix parity error code conflictMichael Chan
The recently added parity error handling used an error code that was already defined for a different error. This could lead to bnx2x firmware assert. We need to fix this with new error codes that are defined for parity error only. Signed-off-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Eddie Wai <eddie.wai@broadcom.com> Reviewed-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-21tg3: Fix RSS ring refill race conditionMichael Chan
The RSS feature in tg3 hardware has only one rx producer ring for all RSS rings. NAPI vector 1 is special and handles the refilling of the rx producer ring on behalf of all RSS rings. There is a race condition between these RSS NAPIs and the NAPI[1]. If NAPI[1] finishes checking for refill and then another RSS ring empties the rx producer ring before NAPI[1] exits NAPI, the chip will be completely out of SKBs in the rx producer ring. We fix this by adding a flag tp->rx_refill and rely on napi_schedule()/ napi_complete() to help synchronize it to close the race condition. Update driver version to 3.123. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-21Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc merge from Benjamin Herrenschmidt: "Here's the powerpc batch for this merge window. It is going to be a bit more nasty than usual as in touching things outside of arch/powerpc mostly due to the big iSeriesectomy :-) We finally got rid of the bugger (legacy iSeries support) which was a PITA to maintain and that nobody really used anymore. Here are some of the highlights: - Legacy iSeries is gone. Thanks Stephen ! There's still some bits and pieces remaining if you do a grep -ir series arch/powerpc but they are harmless and will be removed in the next few weeks hopefully. - The 'fadump' functionality (Firmware Assisted Dump) replaces the previous (equivalent) "pHyp assisted dump"... it's a rewrite of a mechanism to get the hypervisor to do crash dumps on pSeries, the new implementation hopefully being much more reliable. Thanks Mahesh Salgaonkar. - The "EEH" code (pSeries PCI error handling & recovery) got a big spring cleaning, motivated by the need to be able to implement a new backend for it on top of some new different type of firwmare. The work isn't complete yet, but a good chunk of the cleanups is there. Note that this adds a field to struct device_node which is not very nice and which Grant objects to. I will have a patch soon that moves that to a powerpc private data structure (hopefully before rc1) and we'll improve things further later on (hopefully getting rid of the need for that pointer completely). Thanks Gavin Shan. - I dug into our exception & interrupt handling code to improve the way we do lazy interrupt handling (and make it work properly with "edge" triggered interrupt sources), and while at it found & fixed a wagon of issues in those areas, including adding support for page fault retry & fatal signals on page faults. - Your usual random batch of small fixes & updates, including a bunch of new embedded boards, both Freescale and APM based ones, etc..." I fixed up some conflicts with the generalized irq-domain changes from Grant Likely, hopefully correctly. * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (141 commits) powerpc/ps3: Do not adjust the wrapper load address powerpc: Remove the rest of the legacy iSeries include files powerpc: Remove the remaining CONFIG_PPC_ISERIES pieces init: Remove CONFIG_PPC_ISERIES powerpc: Remove FW_FEATURE ISERIES from arch code tty/hvc_vio: FW_FEATURE_ISERIES is no longer selectable powerpc/spufs: Fix double unlocks powerpc/5200: convert mpc5200 to use of_platform_populate() powerpc/mpc5200: add options to mpc5200_defconfig powerpc/mpc52xx: add a4m072 board support powerpc/mpc5200: update mpc5200_defconfig to fit for charon board Documentation/powerpc/mpc52xx.txt: Checkpatch cleanup powerpc/44x: Add additional device support for APM821xx SoC and Bluestone board powerpc/44x: Add support PCI-E for APM821xx SoC and Bluestone board MAINTAINERS: Update PowerPC 4xx tree powerpc/44x: The bug fixed support for APM821xx SoC and Bluestone board powerpc: document the FSL MPIC message register binding powerpc: add support for MPIC message register API powerpc/fsl: Added aliased MSIIR register address to MSI node in dts powerpc/85xx: mpc8548cds - add 36-bit dts ...
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