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2012-12-20Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
Pull nfsd update from Bruce Fields: "Included this time: - more nfsd containerization work from Stanislav Kinsbursky: we're not quite there yet, but should be by 3.9. - NFSv4.1 progress: implementation of basic backchannel security negotiation and the mandatory BACKCHANNEL_CTL operation. See http://wiki.linux-nfs.org/wiki/index.php/Server_4.0_and_4.1_issues for remaining TODO's - Fixes for some bugs that could be triggered by unusual compounds. Our xdr code wasn't designed with v4 compounds in mind, and it shows. A more thorough rewrite is still a todo. - If you've ever seen "RPC: multiple fragments per record not supported" logged while using some sort of odd userland NFS client, that should now be fixed. - Further work from Jeff Layton on our mechanism for storing information about NFSv4 clients across reboots. - Further work from Bryan Schumaker on his fault-injection mechanism (which allows us to discard selective NFSv4 state, to excercise rarely-taken recovery code paths in the client.) - The usual mix of miscellaneous bugs and cleanup. Thanks to everyone who tested or contributed this cycle." * 'for-3.8' of git://linux-nfs.org/~bfields/linux: (111 commits) nfsd4: don't leave freed stateid hashed nfsd4: free_stateid can use the current stateid nfsd4: cleanup: replace rq_resused count by rq_next_page pointer nfsd: warn on odd reply state in nfsd_vfs_read nfsd4: fix oops on unusual readlike compound nfsd4: disable zero-copy on non-final read ops svcrpc: fix some printks NFSD: Correct the size calculation in fault_inject_write NFSD: Pass correct buffer size to rpc_ntop nfsd: pass proper net to nfsd_destroy() from NFSd kthreads nfsd: simplify service shutdown nfsd: replace boolean nfsd_up flag by users counter nfsd: simplify NFSv4 state init and shutdown nfsd: introduce helpers for generic resources init and shutdown nfsd: make NFSd service structure allocated per net nfsd: make NFSd service boot time per-net nfsd: per-net NFSd up flag introduced nfsd: move per-net startup code to separated function nfsd: pass net to __write_ports() and down nfsd: pass net to nfsd_set_nrthreads() ...
2012-12-20Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph update from Sage Weil: "There are a few different groups of commits here. The largest is Alex's ongoing work to enable the coming RBD features (cloning, striping). There is some cleanup in libceph that goes along with it. Cyril and David have fixed some problems with NFS reexport (leaking dentries and page locks), and there is a batch of patches from Yan fixing problems with the fs client when running against a clustered MDS. There are a few bug fixes mixed in for good measure, many of which will be going to the stable trees once they're upstream. My apologies for the late pull. There is still a gremlin in the rbd map/unmap code and I was hoping to include the fix for that as well, but we haven't been able to confirm the fix is correct yet; I'll send that in a separate pull once it's nailed down." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (68 commits) rbd: get rid of rbd_{get,put}_dev() libceph: register request before unregister linger libceph: don't use rb_init_node() in ceph_osdc_alloc_request() libceph: init event->node in ceph_osdc_create_event() libceph: init osd->o_node in create_osd() libceph: report connection fault with warning libceph: socket can close in any connection state rbd: don't use ENOTSUPP rbd: remove linger unconditionally rbd: get rid of RBD_MAX_SEG_NAME_LEN libceph: avoid using freed osd in __kick_osd_requests() ceph: don't reference req after put rbd: do not allow remove of mounted-on image libceph: Unlock unprocessed pages in start_read() error path ceph: call handle_cap_grant() for cap import message ceph: Fix __ceph_do_pending_vmtruncate ceph: Don't add dirty inode to dirty list if caps is in migration ceph: Fix infinite loop in __wake_requests ceph: Don't update i_max_size when handling non-auth cap bdi_register: add __printf verification, fix arg mismatch ...
2012-12-20Merge tag 'for-3.8-merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs Pull new F2FS filesystem from Jaegeuk Kim: "Introduce a new file system, Flash-Friendly File System (F2FS), to Linux 3.8. Highlights: - Add initial f2fs source codes - Fix an endian conversion bug - Fix build failures on random configs - Fix the power-off-recovery routine - Minor cleanup, coding style, and typos patches" From the Kconfig help text: F2FS is based on Log-structured File System (LFS), which supports versatile "flash-friendly" features. The design has been focused on addressing the fundamental issues in LFS, which are snowball effect of wandering tree and high cleaning overhead. Since flash-based storages show different characteristics according to the internal geometry or flash memory management schemes aka FTL, F2FS and tools support various parameters not only for configuring on-disk layout, but also for selecting allocation and cleaning algorithms. and there's an article by Neil Brown about it on lwn.net: http://lwn.net/Articles/518988/ * tag 'for-3.8-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (36 commits) f2fs: fix tracking parent inode number f2fs: cleanup the f2fs_bio_alloc routine f2fs: introduce accessor to retrieve number of dentry slots f2fs: remove redundant call to f2fs_put_page in delete entry f2fs: make use of GFP_F2FS_ZERO for setting gfp_mask f2fs: rewrite f2fs_bio_alloc to make it simpler f2fs: fix a typo in f2fs documentation f2fs: remove unused variable f2fs: move error condition for mkdir at proper place f2fs: remove unneeded initialization f2fs: check read only condition before beginning write out f2fs: remove unneeded memset from init_once f2fs: show error in case of invalid mount arguments f2fs: fix the compiler warning for uninitialized use of variable f2fs: resolve build failures f2fs: adjust kernel coding style f2fs: fix endian conversion bugs reported by sparse f2fs: remove unneeded version.h header file from f2fs.h f2fs: update the f2fs document f2fs: update Kconfig and Makefile ...
2012-12-20Merge tag 'iommu-updates-v3.8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU updates from Joerg Roedel: "A few new features this merge-window. The most important one is probably, that dma-debug now warns if a dma-handle is not checked with dma_mapping_error by the device driver. This requires minor changes to some architectures which make use of dma-debug. Most of these changes have the respective Acks by the Arch-Maintainers. Besides that there are updates to the AMD IOMMU driver for refactor the IOMMU-Groups support and to make sure it does not trigger a hardware erratum. The OMAP changes (for which I pulled in a branch from Tony Lindgren's tree) have a conflict in linux-next with the arm-soc tree. The conflict is in the file arch/arm/mach-omap2/clock44xx_data.c which is deleted in the arm-soc tree. It is safe to delete the file too so solve the conflict. Similar changes are done in the arm-soc tree in the common clock framework migration. A missing hunk from the patch in the IOMMU tree will be submitted as a seperate patch when the merge-window is closed." * tag 'iommu-updates-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (29 commits) ARM: dma-mapping: support debug_dma_mapping_error ARM: OMAP4: hwmod data: ipu and dsp to use parent clocks instead of leaf clocks iommu/omap: Adapt to runtime pm iommu/omap: Migrate to hwmod framework iommu/omap: Keep mmu enabled when requested iommu/omap: Remove redundant clock handling on ISR iommu/amd: Remove obsolete comment iommu/amd: Don't use 512GB pages iommu/tegra: smmu: Move bus_set_iommu after probe for multi arch iommu/tegra: gart: Move bus_set_iommu after probe for multi arch iommu/tegra: smmu: Remove unnecessary PTC/TLB flush all tile: dma_debug: add debug_dma_mapping_error support sh: dma_debug: add debug_dma_mapping_error support powerpc: dma_debug: add debug_dma_mapping_error support mips: dma_debug: add debug_dma_mapping_error support microblaze: dma-mapping: support debug_dma_mapping_error ia64: dma_debug: add debug_dma_mapping_error support c6x: dma_debug: add debug_dma_mapping_error support ARM64: dma_debug: add debug_dma_mapping_error support intel-iommu: Prevent devices with RMRRs from being placed into SI Domain ...
2012-12-20Merge branch 'hwmon-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging Pull hwmon subsystem update from Jean Delvare: "There are many improvements to the it87 driver, as well as suspend support for the Winbond Super-I/O chips, and a few other fixes." * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon-vid: Add support for AMD family 11h to 15h processors hwmon: (it87) Support PECI for additional chips hwmon: (it87) Report thermal sensor type as Intel PECI if appropriate hwmon: (it87) Manage device specific features with table hwmon: (it87) Replace pwm group macro with direct attribute definitions hwmon: (it87) Avoid quoted string splits across lines hwmon: (it87) Save fan registers in 2-dimensional array hwmon: (it87) Introduce support for tempX_offset sysfs attribute hwmon: (it87) Replace macro defining tempX_type sensors with direct definitions hwmon: (it87) Save voltage register values in 2-dimensional array hwmon: (it87) Save temperature registers in 2-dimensional array hwmon: (w83627ehf) Get rid of smatch warnings hwmon: (w83627hf) Don't touch nonexistent I2C address registers hwmon: (w83627ehf) Add support for suspend hwmon: (w83627hf) Add support for suspend hwmon: Fix PCI device reference leak in quirk
2012-12-19Merge tags 'dt-for-linus', 'gpio-for-linus' and 'spi-for-linus' of ↵Linus Torvalds
git://git.secretlab.ca/git/linux-2.6 Pull devicetree, gpio and spi bugfixes from Grant Likely: "Device tree v3.8 bug fix: - Fixes an undefined struct device build error and a missing symbol export. GPIO device driver bug fixes: - gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG - gpio/ich: Add missing spinlock init SPI device driver bug fixes: - Most of this is bug fixes to the core code and the sh-hspi and s3c64xx device drivers. - There is also a patch here to add DT support to the Atmel driver. This one should have been in the first round, but I missed it. It's a low risk change contained within a single driver and the Atmel maintainer has requested it." * tag 'dt-for-linus' of git://git.secretlab.ca/git/linux-2.6: of: define struct device in of_platform.h if !OF_DEVICE and !OF_ADDRESS of: Fix export of of_find_matching_node_and_match() * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG gpio/ich: Add missing spinlock init * tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6: spi/sh-hspi: fix return value check in hspi_probe(). spi: fix tegra SPI binding examples spi/atmel: add DT support of/spi: Fix SPI module loading by using proper "spi:" modalias prefixes. spi: Change FIFO flush operation and spi channel off spi: Keep chipselect assertion during one message
2012-12-19hwmon: (it87) Report thermal sensor type as Intel PECI if appropriateGuenter Roeck
IT8721 and IT8728 support Intel PECI temperature reporting. Each sensor can be programmed to display the temperature reported on the PECI interface. If configured for Intel PECI, the driver reported the wrong sensor type for the respective thermal sensor. Fix the code to correctly report it as "Intel PECI (6)". Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-19hwmon: (it87) Introduce support for tempX_offset sysfs attributeGuenter Roeck
Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-19Merge tag 'xtensa-20121218' of git://github.com/czankel/xtensa-linuxLinus Torvalds
Pull Xtensa patchset from Chris Zankel: "This contains support of device trees, many fixes, and code clean-ups" * tag 'xtensa-20121218' of git://github.com/czankel/xtensa-linux: (33 commits) xtensa: don't try to build DTB when OF is disabled xtensa: set the correct ethernet address for xtfpga xtensa: clean up files to make them code-style compliant xtensa: provide endianness macro for sparse xtensa: fix RASID SR initialization xtensa: initialize CPENABLE SR when core has one xtensa: reset all timers on initialization Use for_each_compatible_node() macro. xtensa: add XTFPGA DTS xtensa: add support for the XTFPGA boards xtensa: add device trees support xtensa: add IRQ domains support xtensa: add U-Boot image support (uImage). xtensa: clean up boot make rules xtensa: fix mb and wmb definitions xtensa: add s32c1i-based spinlock implementations xtensa: add s32c1i-based bitops implementations xtensa: add s32c1i-based atomic ops implementations xtensa: add s32c1i sanity check xtensa: add trap_set_handler function ...
2012-12-19Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull small x86 fixes from Peter Anvin: "A collection of very small fixes, mostly pure documentation." * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, doc: Document that bootloader ID 4 is used also by iPXE x86, doc: Add a formal bootloader ID for kexec-tools x86, 8042: Enable A20 using KBC to fix S3 resume on some MSI laptops
2012-12-19Merge tag 'for-linus-20121219' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull MTD updates from David Woodhouse: - Various cleanups especially in NAND tests - Add support for NAND flash on BCMA bus - DT support for sh_flctl and denali NAND drivers - Kill obsolete/superceded drivers (fortunet, nomadik_nand) - Fix JFFS2 locking bug in ENOMEM failure path - New SPI flash chips, as usual - Support writing in 'reliable mode' for DiskOnChip G4 - Debugfs support in nandsim * tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd: (96 commits) mtd: nand: typo in nand_id_has_period() comments mtd: nand/gpio: use io{read,write}*_rep accessors mtd: block2mtd: throttle writes by calling balance_dirty_pages_ratelimited. mtd: nand: gpmi: reset BCH earlier, too, to avoid NAND startup problems mtd: nand/docg4: fix and improve read of factory bbt mtd: nand/docg4: reserve bb marker area in ecclayout mtd: nand/docg4: add support for writing in reliable mode mtd: mxc_nand: reorder part_probes to let cmdline override other sources mtd: mxc_nand: fix unbalanced clk_disable() in error path mtd: nandsim: Introduce debugfs infrastructure mtd: physmap_of: error checking to prevent a NULL pointer dereference mtg: docg3: potential divide by zero in doc_write_oob() mtd: bcm47xxnflash: writing support mtd: tests/read: initialize buffer for whole next page mtd: at91: atmel_nand: return bit flips for the PMECC read_page() mtd: fix recovery after failed write-buffer operation in cfi_cmdset_0002.c mtd: nand: onfi need to be probed in 8 bits mode mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width mtd: nand: print flash size during detection mted: nand_wait_ready timeout fix ...
2012-12-19Merge tag 'for-3.8-rc1' of git://gitorious.org/linux-pwm/linux-pwmLinus Torvalds
Pull pwm changes from Thierry Reding: "A new driver has been added for the SPEAr platform and the TWL4030/6030 driver has been replaced by two drivers that control the regular PWMs and the PWM driven LEDs provided by the chips. The vt8500, tiecap, tiehrpwm, i.MX, LPC32xx and Samsung drivers have all been improved and the device tree bindings now support the PWM signal polarity." Fix up trivial conflicts due to __devinit/exit removal. * tag 'for-3.8-rc1' of git://gitorious.org/linux-pwm/linux-pwm: (21 commits) pwm: samsung: add missing s3c->pwm_id assignment pwm: lpc32xx: Set the chip base for dynamic allocation pwm: lpc32xx: Properly disable the clock on device removal pwm: lpc32xx: Fix the PWM polarity pwm: i.MX: eliminate build warning pwm: Export of_pwm_xlate_with_flags() pwm: Remove pwm-twl6030 driver pwm: New driver to support PWM driven LEDs on TWL4030/6030 series of PMICs pwm: New driver to support PWMs on TWL4030/6030 series of PMICs pwm: pwm-tiehrpwm: pinctrl support pwm: tiehrpwm: Add device-tree binding pwm: pwm-tiehrpwm: Adding TBCLK gating support. pwm: pwm-tiecap: pinctrl support pwm: tiecap: Add device-tree binding pwm: Add TI PWM subsystem driver pwm: Device tree support for PWM polarity pwm: vt8500: Ensure PWM clock is enabled during pwm_config pwm: vt8500: Fix build error pwm: spear: Staticize spear_pwm_config() pwm: Add SPEAr PWM chip driver support ...
2012-12-19Merge tag 'modules-next-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module update from Rusty Russell: "Nothing all that exciting; a new module-from-fd syscall for those who want to verify the source of the module (ChromeOS) and/or use standard IMA on it or other security hooks." * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: MODSIGN: Fix kbuild output when using default extra_certificates MODSIGN: Avoid using .incbin in C source modules: don't hand 0 to vmalloc. module: Remove a extra null character at the top of module->strtab. ASN.1: Use the ASN1_LONG_TAG and ASN1_INDEFINITE_LENGTH constants ASN.1: Define indefinite length marker constant moduleparam: use __UNIQUE_ID() __UNIQUE_ID() MODSIGN: Add modules_sign make target powerpc: add finit_module syscall. ima: support new kernel module syscall add finit_module syscall to asm-generic ARM: add finit_module syscall to ARM security: introduce kernel_module_from_file hook module: add flags arg to sys_finit_module() module: add syscall to load module from fd
2012-12-19spi: fix tegra SPI binding examplesAllen Martin
Fix name of slink binding and address of sflash example to make it self consistent. Signed-off-by: Allen Martin <amartin@nvidia.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-12-18xtensa: initialize atomctl SRMax Filippov
In order to use S32C1I instruction on cores with ATOMCTL SR the register must be properly initialized. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-12-18Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linuxLinus Torvalds
Pull i2c-embedded changes from Wolfram Sang: - CBUS driver (an I2C variant) - continued rework of the omap driver - s3c2410 gets lots of fixes and gains pinctrl support - at91 gains DMA support - the GPIO muxer gains devicetree probing - typical fixes and additions all over * 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux: (45 commits) i2c: omap: Remove the OMAP_I2C_FLAG_RESET_REGS_POSTIDLE flag i2c: at91: add dma support i2c: at91: change struct members indentation i2c: at91: fix compilation warning i2c: mxs: Do not disable the I2C SMBus quick mode i2c: mxs: Handle i2c DMA failure properly i2c: s3c2410: Remove recently introduced performance overheads i2c: ocores: Move grlib set/get functions into #ifdef CONFIG_OF block i2c: s3c2410: Add fix for i2c suspend/resume i2c: s3c2410: Fix code to free gpios i2c: i2c-cbus-gpio: introduce driver i2c: ocores: Add support for the GRLIB port of the controller and use function pointers for getreg and setreg functions i2c: ocores: Add irq support for sparc i2c: omap: Move the remove constraint ARM: dts: cfa10049: Add the i2c muxer buses to the CFA-10049 i2c: s3c2410: do not special case HDMIPHY stuck bus detection i2c: s3c2410: use exponential back off while polling for bus idle i2c: s3c2410: do not generate STOP for QUIRK_HDMIPHY i2c: s3c2410: grab adapter lock while changing i2c clock i2c: s3c2410: Add support for pinctrl ...
2012-12-18Merge branch 'akpm' (more patches from Andrew)Linus Torvalds
Merge patches from Andrew Morton: "Most of the rest of MM, plus a few dribs and drabs. I still have quite a few irritating patches left around: ones with dubious testing results, lack of review, ones which should have gone via maintainer trees but the maintainers are slack, etc. I need to be more activist in getting these things wrapped up outside the merge window, but they're such a PITA." * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (48 commits) mm/vmscan.c: avoid possible deadlock caused by too_many_isolated() vmscan: comment too_many_isolated() mm/kmemleak.c: remove obsolete simple_strtoul mm/memory_hotplug.c: improve comments mm/hugetlb: create hugetlb cgroup file in hugetlb_init mm/mprotect.c: coding-style cleanups Documentation: ABI: /sys/devices/system/node/ slub: drop mutex before deleting sysfs entry memcg: add comments clarifying aspects of cache attribute propagation kmem: add slab-specific documentation about the kmem controller slub: slub-specific propagation changes slab: propagate tunable values memcg: aggregate memcg cache values in slabinfo memcg/sl[au]b: shrink dead caches memcg/sl[au]b: track all the memcg children of a kmem_cache memcg: destroy memcg caches sl[au]b: allocate objects from memcg cache sl[au]b: always get the cache from its page in kmem_cache_free() memcg: skip memcg kmem allocations in specified code regions memcg: infrastructure to match an allocation to the right cache ...
2012-12-18Documentation: ABI: /sys/devices/system/node/Davidlohr Bueso
Describe NUMA node sysfs files/attributes. Note that for the specific dates and contacts I couldn't find, I left it as default for Oct 2002 and linux-mm. Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-18kmem: add slab-specific documentation about the kmem controllerGlauber Costa
Signed-off-by: Glauber Costa <glommer@parallels.com> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Cc: Frederic Weisbecker <fweisbec@redhat.com> Cc: Greg Thelen <gthelen@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: JoonSoo Kim <js1304@gmail.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Michal Hocko <mhocko@suse.cz> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Rik van Riel <riel@redhat.com> Cc: Suleiman Souhlal <suleiman@google.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-18memcg: add documentation about the kmem controllerGlauber Costa
Signed-off-by: Glauber Costa <glommer@parallels.com> Acked-by: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Cc: Frederic Weisbecker <fweisbec@redhat.com> Cc: Greg Thelen <gthelen@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: JoonSoo Kim <js1304@gmail.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Rik van Riel <riel@redhat.com> Cc: Suleiman Souhlal <suleiman@google.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-18res_counter: return amount of charges after res_counter_uncharge()Glauber Costa
It is useful to know how many charges are still left after a call to res_counter_uncharge. While it is possible to issue a res_counter_read after uncharge, this can be racy. If we need, for instance, to take some action when the counters drop down to 0, only one of the callers should see it. This is the same semantics as the atomic variables in the kernel. Since the current return value is void, we don't need to worry about anything breaking due to this change: nobody relied on that, and only users appearing from now on will be checking this value. Signed-off-by: Glauber Costa <glommer@parallels.com> Reviewed-by: Michal Hocko <mhocko@suse.cz> Acked-by: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Suleiman Souhlal <suleiman@google.com> Cc: Tejun Heo <tj@kernel.org> Cc: Christoph Lameter <cl@linux.com> Cc: Frederic Weisbecker <fweisbec@redhat.com> Cc: Greg Thelen <gthelen@google.com> Cc: JoonSoo Kim <js1304@gmail.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull second round of input updates from Dmitry Torokhov: "As usual, there are a couple of new drivers, input core now supports managed input devices (devres), a slew of drivers now have device tree support and a bunch of fixes and cleanups." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (71 commits) Input: walkera0701 - fix crash on startup Input: matrix-keymap - provide a proper module license Input: gpio_keys_polled - switch to using gpio_request_one() Input: gpio_keys - switch to using gpio_request_one() Input: wacom - fix touch support for Bamboo Fun CTH-461 Input: xpad - add a few new VID/PID combinations Input: xpad - minor formatting fixes Input: gpio-keys-polled - honor 'autorepeat' setting in platform data Input: tca8418-keypad - switch to using managed resources Input: tca8418_keypad - increase severity of failures in probe() Input: tca8418_keypad - move device ID tables closer to where they are used Input: tca8418_keypad - use dev_get_platdata() to retrieve platform data Input: tca8418_keypad - use a temporary variable for parent device Input: tca8418_keypad - add support for shared interrupt Input: tca8418_keypad - add support for device tree bindings Input: remove Compaq iPAQ H3600 (Bitsy) touchscreen driver Input: bu21013_ts - add support for Device Tree booting Input: bu21013_ts - move GPIO init and exit functions into the driver Input: bu21013_ts - request regulator that actually exists ARM: ux500: Strip out duplicate touch screen platform information ...
2012-12-18Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc update from Benjamin Herrenschmidt: "The main highlight is probably some base POWER8 support. There's more to come such as transactional memory support but that will wait for the next one. Overall it's pretty quiet, or rather I've been pretty poor at picking things up from patchwork and reviewing them this time around and Kumar no better on the FSL side it seems..." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (73 commits) powerpc+of: Rename and fix OF reconfig notifier error inject module powerpc: mpc5200: Add a3m071 board support powerpc/512x: don't compile any platform DIU code if the DIU is not enabled powerpc/mpc52xx: use module_platform_driver macro powerpc+of: Export of_reconfig_notifier_[register,unregister] powerpc/dma/raidengine: add raidengine device powerpc/iommu/fsl: Add PAMU bypass enable register to ccsr_guts struct powerpc/mpc85xx: Change spin table to cached memory powerpc/fsl-pci: Add PCI controller ATMU PM support powerpc/86xx: fsl_pcibios_fixup_bus requires CONFIG_PCI drivers/virt: the Freescale hypervisor driver doesn't need to check MSR[GS] powerpc/85xx: p1022ds: Use NULL instead of 0 for pointers powerpc: Disable relocation on exceptions when kexecing powerpc: Enable relocation on during exceptions at boot powerpc: Move get_longbusy_msecs into hvcall.h and remove duplicate function powerpc: Add wrappers to enable/disable relocation on exceptions powerpc: Add set_mode hcall powerpc: Setup relocation on exceptions for bare metal systems powerpc: Move initial mfspr LPCR out of __init_LPCR powerpc: Add relocation on exception vector handlers ...
2012-12-17docs: update documentation about /proc/<pid>/fdinfo/<fd> fanotify outputCyrill Gorcunov
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andrey Vagin <avagin@openvz.org> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: James Bottomley <jbottomley@parallels.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Matthew Helsley <matt.helsley@gmail.com> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@onelan.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17docs: add documentation about /proc/<pid>/fdinfo/<fd> outputCyrill Gorcunov
[akpm@linux-foundation.org: tweak documentation] Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andrey Vagin <avagin@openvz.org> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: James Bottomley <jbottomley@parallels.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Matthew Helsley <matt.helsley@gmail.com> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@onelan.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17aoe: allow user to disable target failure timeoutEd Cashin
With this change, the aoe driver treats the value zero as special for the aoe_deadsecs module parameter. Normally, this value specifies the number of seconds during which the driver will continue to attempt retransmits to an unresponsive AoE target. After aoe_deadsecs has elapsed, the aoe driver marks the aoe device as "down" and fails all I/O. The new meaning of an aoe_deadsecs of zero is for the driver to retransmit commands indefinitely. Signed-off-by: Ed Cashin <ecashin@coraid.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17Documentation/sparse.txt: document context annotations for lock checkingEd Cashin
The context feature of sparse is used with the Linux kernel sources to check for imbalanced uses of locks. Document the annotations defined in include/linux/compiler.h that tell sparse what to expect when a lock is held on function entry, exit, or both. Signed-off-by: Ed Cashin <ecashin@coraid.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Acked-by: Christopher Li <sparse@chrisli.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17/proc/pid/status: add "Seccomp" fieldKees Cook
It is currently impossible to examine the state of seccomp for a given process. While attaching with gdb and attempting "call prctl(PR_GET_SECCOMP,...)" will work with some situations, it is not reliable. If the process is in seccomp mode 1, this query will kill the process (prctl not allowed), if the process is in mode 2 with prctl not allowed, it will similarly be killed, and in weird cases, if prctl is filtered to return errno 0, it can look like seccomp is disabled. When reviewing the state of running processes, there should be a way to externally examine the seccomp mode. ("Did this build of Chrome end up using seccomp?" "Did my distro ship ssh with seccomp enabled?") This adds the "Seccomp" line to /proc/$pid/status. Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: James Morris <jmorris@namei.org> Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17procfs: add VmFlags field in smaps outputCyrill Gorcunov
During c/r sessions we've found that there is no way at the moment to fetch some VMA associated flags, such as mlock() and madvise(). This leads us to a problem -- we don't know if we should call for mlock() and/or madvise() after restore on the vma area we're bringing back to life. This patch intorduces a new field into "smaps" output called VmFlags, where all set flags associated with the particular VMA is shown as two letter mnemonics. [ Strictly speaking for c/r we only need mlock/madvise bits but it has been said that providing just a few flags looks somehow inconsistent. So all flags are here now. ] This feature is made available on CONFIG_CHECKPOINT_RESTORE=n kernels, as other applications may start to use these fields. The data is encoded in a somewhat awkward two letters mnemonic form, to encourage userspace to be prepared for fields being added or removed in the future. [a.p.zijlstra@chello.nl: props to use for_each_set_bit] [sfr@canb.auug.org.au: props to use array instead of struct] [akpm@linux-foundation.org: overall redesign and simplification] [akpm@linux-foundation.org: remove unneeded braces per sfr, avoid using bloaty for_each_set_bit()] Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17kstrto*: add documentationEldad Zack
As Bruce Fields pointed out, kstrto* is currently lacking kerneldoc comments. This patch adds kerneldoc comments to common variants of kstrto*: kstrto(u)l, kstrto(u)ll and kstrto(u)int. Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Cc: J. Bruce Fields <bfields@fieldses.org> Cc: Joe Perches <joe@perches.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17Documentation: fix Documentation/security/00-INDEXJarkko Sakkinen
keys-ecryptfs.txt was missing from 00-INDEX. Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17fat: provide option for setting timezone offsetJan Kara
So far FAT either offsets time stamps by sys_tz.minuteswest or leaves them as they are (when tz=UTC mount option is used). However in some cases it is useful if one can specify time stamp offset on his own (e.g. when time zone of the camera connected is different from time zone of the computer, or when HW clock is in UTC and thus sys_tz.minuteswest == 0). So provide a mount option time_offset= which allows user to specify offset in minutes that should be applied to time stamps on the filesystem. akpm: this code would work incorrectly when used via `mount -o remount', because cached inodes would not be updated. But fatfs's fat_remount() is basically a no-op anyway. Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17drivers/rtc/rtc-imxdi.c: add devicetree supportRoland Stigge
Add device tree support to the rtc-imxdi driver. Signed-off-by: Roland Stigge <stigge@antcom.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17rtc: omap: dt supportAfzal Mohammed
Enhance rtc-omap driver with DT capability Signed-off-by: Afzal Mohammed <afzal@ti.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Daniel Mack <zonque@gmail.com> Cc: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17drivers/video/backlight/lp855x_bl.c: use generic PWM functionsKim, Milo
The LP855x family devices support the PWM input for the backlight control. Period of the PWM is configurable in the platform side. Platform specific functions are unnecessary anymore because generic PWM functions are used inside the driver. (PWM input mode) To set the brightness, new lp855x_pwm_ctrl() is used. If a PWM device is not allocated, devm_pwm_get() is called. The PWM consumer name is from the chip name such as 'lp8550' and 'lp8556'. To get the brightness value, no additional handling is required. Just the value of 'props.brightness' is returned. If the PWM driver is not ready while initializing the LP855x driver, it's OK. The PWM device can be retrieved later, when the brightness value is changed. Documentation is updated with an example. [akpm@linux-foundation.org: coding-style simplification, per Thierry] Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Cc: Thierry Reding <thierry.reding@avionic-design.de> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17Documentation: remove reference to feature-removal-schedule.txtTao Ma
In commit 9c0ece069b32 ("Get rid of Documentation/feature-removal.txt"), Linus removed feature-removal-schedule.txt from Documentation, but there is still some reference to this file. So remove them. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17Documentation/kernel-parameters.txt: update mem= option's spec according to ↵Wen Congyang
its implementation Current mem= implementation seems buggy because the specification and implementation don't match. The current mem= has been working for many years and it's not buggy - it works as expected. So we should update the specification. Signed-off-by: Wen Congyang <wency@cn.fujitsu.com> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-18Merge remote-tracking branch 'agust/next' into nextBenjamin Herrenschmidt
Brings some 52xx updates. Also manually merged tools/perf/perf.h. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-12-17spi/atmel: add DT supportJean-Christophe PLAGNIOL-VILLARD
Use the newly introduce cs-gpios dt support on atmel. We do not use the hardware cs as it's wired and has bugs and limitations. As the controller believes that only active-low devices/systems exists. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-12-17Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull DRM updates from Dave Airlie: "This is the one and only next pull for 3.8, we had a regression we found last week, so I was waiting for that to resolve itself, and I ended up with some Intel fixes on top as well. Highlights: - new driver: nvidia tegra 20/30/hdmi support - radeon: add support for previously unused DMA engines, more HDMI regs, eviction speeds ups and fixes - i915: HSW support enable, agp removal on GEN6, seqno wrapping - exynos: IPP subsystem support (image post proc), HDMI - nouveau: display class reworking, nv20->40 z compression - ttm: start of locking fixes, rcu usage for lookups, - core: documentation updates, docbook integration, monotonic clock usage, move from connector to object properties" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (590 commits) drm/exynos: add gsc ipp driver drm/exynos: add rotator ipp driver drm/exynos: add fimc ipp driver drm/exynos: add iommu support for ipp drm/exynos: add ipp subsystem drm/exynos: support device tree for fimd radeon: fix regression with eviction since evict caching changes drm/radeon: add more pedantic checks in the CP DMA checker drm/radeon: bump version for CS ioctl support for async DMA drm/radeon: enable the async DMA rings in the CS ioctl drm/radeon: add VM CS parser support for async DMA on cayman/TN/SI drm/radeon/kms: add evergreen/cayman CS parser for async DMA (v2) drm/radeon/kms: add 6xx/7xx CS parser for async DMA (v2) drm/radeon: fix htile buffer size computation for command stream checker drm/radeon: fix fence locking in the pageflip callback drm/radeon: make indirect register access concurrency-safe drm/radeon: add W|RREG32_IDX for MM_INDEX|DATA based mmio accesss drm/exynos: support extended screen coordinate of fimd drm/exynos: fix x, y coordinates for right bottom pixel drm/exynos: fix fb offset calculation for plane ...
2012-12-16Merge tag 'mfd-3.8-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFS update from Samuel Ortiz: "This is the MFD patch set for the 3.8 merge window. We have several new drivers, most of the time coming with their sub devices drivers: - Austria Microsystem's AS3711 - Nano River's viperboard - TI's TPS80031, AM335x TS/ADC, - Realtek's MMC/memstick card reader - Nokia's retu We also got some notable cleanups and improvements: - tps6586x got converted to IRQ domains. - tps65910 and tps65090 moved to the regmap IRQ API. - STMPE is now Device Tree aware. - A general twl6040 and twl-core cleanup, with moves to the regmap I/O and IRQ APIs and a conversion to the recently added PWM framework. - sta2x11 gained regmap support. Then the rest is mostly tiny cleanups and fixes, among which we have Mark's wm5xxx and wm8xxx patchset." Far amount of annoying but largely trivial conflicts. Many due to __devinit/exit removal, others due to one or two of the new drivers also having come in through another tree. * tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (119 commits) mfd: tps6507x: Convert to devm_kzalloc mfd: stmpe: Update DT support for stmpe driver mfd: wm5102: Add readback of DSP status 3 register mfd: arizona: Log if we fail to create the primary IRQ domain mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ mfd: tps80031: Add terminating entry for tps80031_id_table mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask() mfd: wm5102: Add tuning for revision B mfd: arizona: Defer patch initialistation until after first device boot mfd: tps65910: Fix wrong ack_base register mfd: tps65910: Remove unused data mfd: stmpe: Get rid of irq_invert_polarity mfd: ab8500-core: Fix invalid free of devm_ allocated data mfd: wm5102: Mark DSP memory regions as volatile mfd: wm5102: Correct default for LDO1_CONTROL_2 mfd: arizona: Register haptics devices mfd: wm8994: Make current device behaviour the default mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ mfd: Fix stmpe.c build when OF is not enabled mfd: jz4740-adc: Use devm_kzalloc ...
2012-12-16Merge branch 'i2c-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging Pull i2c update from Jean Delvare: "This is my last pull request for the i2c subsystem. It includes all the patches I collected between kernel v3.7-rc1 and me passing i2c maintenance duties over to Wolfram. Future patches to the many i2c bus drivers I still maintain will go through Wolfram's tree." * 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c: Mention functionality flags in SMBus protocol documentation i2c-piix4: Convert dev_printk(KERN_<LEVEL> to dev_<level>( i2c-i801: Enable interrupts for all post-ICH5 chips i2c-i801: Add device tree support MAINTAINERS: Fix drivers/i2c/busses/i2c-stub.c
2012-12-16Merge tag 'ext4_for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 update from Ted Ts'o: "There are two major features for this merge window. The first is inline data, which allows small files or directories to be stored in the in-inode extended attribute area. (This requires that the file system use inodes which are at least 256 bytes or larger; 128 byte inodes do not have any room for in-inode xattrs.) The second new feature is SEEK_HOLE/SEEK_DATA support. This is enabled by the extent status tree patches, and this infrastructure will be used to further optimize ext4 in the future. Beyond that, we have the usual collection of code cleanups and bug fixes." * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (63 commits) ext4: zero out inline data using memset() instead of empty_zero_page ext4: ensure Inode flags consistency are checked at build time ext4: Remove CONFIG_EXT4_FS_XATTR ext4: remove unused variable from ext4_ext_in_cache() ext4: remove redundant initialization in ext4_fill_super() ext4: remove redundant code in ext4_alloc_inode() ext4: use sync_inode_metadata() when syncing inode metadata ext4: enable ext4 inline support ext4: let fallocate handle inline data correctly ext4: let ext4_truncate handle inline data correctly ext4: evict inline data out if we need to strore xattr in inode ext4: let fiemap work with inline data ext4: let ext4_rename handle inline dir ext4: let empty_dir handle inline dir ext4: let ext4_delete_entry() handle inline data ext4: make ext4_delete_entry generic ext4: let ext4_find_entry handle inline data ext4: create a new function search_dir ext4: let ext4_readdir handle inline data ext4: let add_dir_entry handle inline data properly ...
2012-12-16Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security subsystem updates from James Morris: "A quiet cycle for the security subsystem with just a few maintenance updates." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: Smack: create a sysfs mount point for smackfs Smack: use select not depends in Kconfig Yama: remove locking from delete path Yama: add RCU to drop read locking drivers/char/tpm: remove tasklet and cleanup KEYS: Use keyring_alloc() to create special keyrings KEYS: Reduce initial permissions on keys KEYS: Make the session and process keyrings per-thread seccomp: Make syscall skipping and nr changes more consistent key: Fix resource leak keys: Fix unreachable code KEYS: Add payload preparsing opportunity prior to key instantiate or update
2012-12-16Merge tag 'balancenuma-v11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma Pull Automatic NUMA Balancing bare-bones from Mel Gorman: "There are three implementations for NUMA balancing, this tree (balancenuma), numacore which has been developed in tip/master and autonuma which is in aa.git. In almost all respects balancenuma is the dumbest of the three because its main impact is on the VM side with no attempt to be smart about scheduling. In the interest of getting the ball rolling, it would be desirable to see this much merged for 3.8 with the view to building scheduler smarts on top and adapting the VM where required for 3.9. The most recent set of comparisons available from different people are mel: https://lkml.org/lkml/2012/12/9/108 mingo: https://lkml.org/lkml/2012/12/7/331 tglx: https://lkml.org/lkml/2012/12/10/437 srikar: https://lkml.org/lkml/2012/12/10/397 The results are a mixed bag. In my own tests, balancenuma does reasonably well. It's dumb as rocks and does not regress against mainline. On the other hand, Ingo's tests shows that balancenuma is incapable of converging for this workloads driven by perf which is bad but is potentially explained by the lack of scheduler smarts. Thomas' results show balancenuma improves on mainline but falls far short of numacore or autonuma. Srikar's results indicate we all suffer on a large machine with imbalanced node sizes. My own testing showed that recent numacore results have improved dramatically, particularly in the last week but not universally. We've butted heads heavily on system CPU usage and high levels of migration even when it shows that overall performance is better. There are also cases where it regresses. Of interest is that for specjbb in some configurations it will regress for lower numbers of warehouses and show gains for higher numbers which is not reported by the tool by default and sometimes missed in treports. Recently I reported for numacore that the JVM was crashing with NullPointerExceptions but currently it's unclear what the source of this problem is. Initially I thought it was in how numacore batch handles PTEs but I'm no longer think this is the case. It's possible numacore is just able to trigger it due to higher rates of migration. These reports were quite late in the cycle so I/we would like to start with this tree as it contains much of the code we can agree on and has not changed significantly over the last 2-3 weeks." * tag 'balancenuma-v11' of git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma: (50 commits) mm/rmap, migration: Make rmap_walk_anon() and try_to_unmap_anon() more scalable mm/rmap: Convert the struct anon_vma::mutex to an rwsem mm: migrate: Account a transhuge page properly when rate limiting mm: numa: Account for failed allocations and isolations as migration failures mm: numa: Add THP migration for the NUMA working set scanning fault case build fix mm: numa: Add THP migration for the NUMA working set scanning fault case. mm: sched: numa: Delay PTE scanning until a task is scheduled on a new node mm: sched: numa: Control enabling and disabling of NUMA balancing if !SCHED_DEBUG mm: sched: numa: Control enabling and disabling of NUMA balancing mm: sched: Adapt the scanning rate if a NUMA hinting fault does not migrate mm: numa: Use a two-stage filter to restrict pages being migrated for unlikely task<->node relationships mm: numa: migrate: Set last_nid on newly allocated page mm: numa: split_huge_page: Transfer last_nid on tail page mm: numa: Introduce last_nid to the page frame sched: numa: Slowly increase the scanning period as NUMA faults are handled mm: numa: Rate limit setting of pte_numa if node is saturated mm: numa: Rate limit the amount of memory that is migrated between nodes mm: numa: Structures for Migrate On Fault per NUMA migration rate limiting mm: numa: Migrate pages handled during a pmd_numa hinting fault mm: numa: Migrate on reference policy ...
2012-12-16i2c: Mention functionality flags in SMBus protocol documentationJean Delvare
While the mapping between I2C adapter functionality flags and i2c_smbus_*() helper functions is rather obvious, let's still document it for clarity. Also drop the reference to 2 command byte I2C block reads, there is no support for that in the kernel at the moment. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-16Merge branches 'iommu/fixes', 'dma-debug', 'x86/amd', 'x86/vt-d', ↵Joerg Roedel
'arm/tegra' and 'arm/omap' into next
2012-12-15Merge tag 'fbdev-for-3.8' of git://gitorious.org/linux-omap-dss2/linuxLinus Torvalds
Pull fbdev changes from Tomi Valkeinen: "OMAPDSS changes, including: - use dynanic debug prints - OMAP platform dependency removals - Creation of compat-layer, helping us to improve omapdrm - Misc cleanups, aiming to make omadss more in line with the upcoming common display framework Exynos DP changes for the 3.8 merge window: - Device Tree support for Samsung Exynos DP - SW Link training is cleaned up. - HPD interrupt is supported. Samsung Framebuffer changes for the 3.8 merge window: - The bit definitions of header file are updated. - Some minor typos are fixed. - Some minor bugs of s3c_fb_check_var() are fixed. FB related changes for SH Mobile, Freescale DIU Add support for the Solomon SSD1307 OLED Controller" * tag 'fbdev-for-3.8' of git://gitorious.org/linux-omap-dss2/linux: (191 commits) OMAPDSS: fix TV-out issue with DSI PLL Revert "OMAPFB: simplify locking" OMAPFB: remove silly loop in fb2display() OMAPFB: fix error handling in omapfb_find_best_mode() OMAPFB: use devm_kzalloc to allocate omapfb2_device OMAPDSS: DISPC: remove dispc fck uses OMAPDSS: DISPC: get dss clock rate from dss driver drivers/video/console/softcursor.c: remove redundant NULL check before kfree() drivers/video: add support for the Solomon SSD1307 OLED Controller OMAPDSS: use omapdss_compat_init() in other drivers OMAPDSS: export dispc functions OMAPDSS: export dss_feat functions OMAPDSS: export dss_mgr_ops functions OMAPDSS: separate compat files in the Makefile OMAPDSS: move display sysfs init to compat layer OMAPDSS: DPI: use dispc's check_timings OMAPDSS: DISPC: add dispc_ovl_check() OMAPDSS: move irq handling to dispc-compat OMAPDSS: move omap_dispc_wait_for_irq_interruptible_timeout to dispc-compat.c OMAPDSS: move blocking mgr enable/disable to compat layer ... Conflicts: arch/arm/mach-davinci/devices-da8xx.c arch/arm/plat-omap/common.c drivers/media/platform/omap/omap_vout.c
2012-12-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
Pull crypto update from Herbert Xu: - Added aesni/avx/x86_64 implementations for camellia. - Optimised AVX code for cast5/serpent/twofish/cast6. - Fixed vmac bug with unaligned input. - Allow compression algorithms in FIPS mode. - Optimised crc32c implementation for Intel. - Misc fixes. * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (32 commits) crypto: caam - Updated SEC-4.0 device tree binding for ERA information. crypto: testmgr - remove superfluous initializers for xts(aes) crypto: testmgr - allow compression algs in fips mode crypto: testmgr - add larger crc32c test vector to test FPU path in crc32c_intel crypto: testmgr - clean alg_test_null entries in alg_test_descs[] crypto: testmgr - remove fips_allowed flag from camellia-aesni null-tests crypto: cast5/cast6 - move lookup tables to shared module padata: use __this_cpu_read per-cpu helper crypto: s5p-sss - Fix compilation error crypto: picoxcell - Add terminating entry for platform_device_id table crypto: omap-aes - select BLKCIPHER2 crypto: camellia - add AES-NI/AVX/x86_64 assembler implementation of camellia cipher crypto: camellia-x86_64 - share common functions and move structures and function definitions to header file crypto: tcrypt - add async speed test for camellia cipher crypto: tegra-aes - fix error-valued pointer dereference crypto: tegra - fix missing unlock on error case crypto: cast5/avx - avoid using temporary stack buffers crypto: serpent/avx - avoid using temporary stack buffers crypto: twofish/avx - avoid using temporary stack buffers crypto: cast6/avx - avoid using temporary stack buffers ...
2012-12-14Merge tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds
Pull ARM SoC updates for Marvell mvebu/kirkwood from Olof Johansson: "This is a branch with updates for Marvell's mvebu/kirkwood platforms. They came in late-ish, and were heavily interdependent such that it didn't make sense to split them up across the cross-platform topic branches. So here they are (for the second release in a row) in a branch on their own." * tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (88 commits) arm: l2x0: add aurora related properties to OF binding arm: mvebu: add Aurora L2 Cache Controller to the DT arm: mvebu: add L2 cache support dma: mv_xor: fix error handling path dma: mv_xor: fix error checking of irq_of_parse_and_map() dma: mv_xor: use request_irq() instead of devm_request_irq() dma: mv_xor: clear the window override control registers arm: mvebu: fix address decoding armada_cfg_base() function ARM: mvebu: update defconfig with I2C and RTC support ARM: mvebu: Add SATA support for OpenBlocks AX3-4 ARM: mvebu: Add support for the RTC in OpenBlocks AX3-4 ARM: mvebu: Add support for I2C on OpenBlocks AX3-4 ARM: mvebu: Add support for I2C controllers in Armada 370/XP arm: mvebu: Add hardware I/O Coherency support arm: plat-orion: Add coherency attribute when setup mbus target arm: dma mapping: Export a dma ops function arm_dma_set_mask arm: mvebu: Add SMP support for Armada XP arm: mm: Add support for PJ4B cpu and init routines arm: mvebu: Add IPI support via doorbells arm: mvebu: Add initial support for power managmement service unit ...