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2013-01-23mmc: mvsdio: use devm_ API to simplify/correct error paths.Andrew Lunn
There are a number of bugs in the error paths of this driver. Make use of devm_ functions to simplify the cleanup on error. Based on a patch by Russell King. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-01-23clk: mvebu/clk-cpu.c: fix memory leakageCong Ding
the variable cpuclk and clk_name should be properly freed when error happens. Signed-off-by: Cong Ding <dinggnu@gmail.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-01-22Merge tag '3.8-pci-fixes-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "The most important is a fix for a pciehp deadlock that occurs when unplugging a Thunderbolt adapter. We also applied the same fix to shpchp, removed CONFIG_EXPERIMENTAL dependencies, fixed a pcie_aspm=force problem, and fixed a refcount leak. Details: - Hotplug PCI: pciehp: Use per-slot workqueues to avoid deadlock PCI: shpchp: Make shpchp_wq non-ordered PCI: shpchp: Handle push button event asynchronously PCI: shpchp: Use per-slot workqueues to avoid deadlock - Power management PCI: Allow pcie_aspm=force even when FADT indicates it is unsupported - Misc PCI/AER: pci_get_domain_bus_and_slot() call missing required pci_dev_put() PCI: remove depends on CONFIG_EXPERIMENTAL" * tag '3.8-pci-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: remove depends on CONFIG_EXPERIMENTAL PCI: Allow pcie_aspm=force even when FADT indicates it is unsupported PCI: shpchp: Use per-slot workqueues to avoid deadlock PCI: shpchp: Handle push button event asynchronously PCI: shpchp: Make shpchp_wq non-ordered PCI/AER: pci_get_domain_bus_and_slot() call missing required pci_dev_put() PCI: pciehp: Use per-slot workqueues to avoid deadlock
2013-01-22async: fix __lowest_in_progress()Tejun Heo
Commit 083b804c4d3e ("async: use workqueue for worker pool") made it possible that async jobs are moved from pending to running out-of-order. While pending async jobs will be queued and dispatched for execution in the same order, nothing guarantees they'll enter "1) move self to the running queue" of async_run_entry_fn() in the same order. Before the conversion, async implemented its own worker pool. An async worker, upon being woken up, fetches the first item from the pending list, which kept the executing lists sorted. The conversion to workqueue was done by adding work_struct to each async_entry and async just schedules the work item. The queueing and dispatching of such work items are still in order but now each worker thread is associated with a specific async_entry and moves that specific async_entry to the executing list. So, depending on which worker reaches that point earlier, which is non-deterministic, we may end up moving an async_entry with larger cookie before one with smaller one. This broke __lowest_in_progress(). running->domain may not be properly sorted and is not guaranteed to contain lower cookies than pending list when not empty. Fix it by ensuring sort-inserting to the running list and always looking at both pending and running when trying to determine the lowest cookie. Over time, the async synchronization implementation became quite messy. We better restructure it such that each async_entry is linked to two lists - one global and one per domain - and not move it when execution starts. There's no reason to distinguish pending and running. They behave the same for synchronization purposes. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-22Merge tag 'perf-urgent-for-mingo' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf/urgent fixes from Arnaldo Carvalho de Melo: . revert 20b279 - require exclude_guest to use PEBS - kernel side, now older binaries will continue working for things like cycles:pp without needing to pass extra modifiers, from David Ahern. . Fix building from 'make perf-*-src-pkg' tarballs, broken by UAPI, from Sebastian Andrzej Siewior [ Pulling directly, Ingo would normally pull but has been unresponsive ] * tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: perf tools: Fix building from 'make perf-*-src-pkg' tarballs perf x86: revert 20b279 - require exclude_guest to use PEBS - kernel side
2013-01-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fixes from Helge Deller: "Improve the stability of the linux kernel on the parisc architecture" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: sigaltstack doesn't round ss.ss_sp as required parisc: improve ptrace support for gdb single-step parisc: don't claim cpu irqs more than once parisc: avoid undefined shift in cnv_float.h
2013-01-22cpufreq: Add module aliases for acpi-cpufreqMatthew Garrett
The acpi core will call request_module("acpi-cpufreq") on subsystem init, but this will fail if the module isn't available at that stage of boot. Add some module aliases to ensure that udev can load the module on Intel and AMD systems with the appropriate feature bits - I /think/ that this will also work on VIA systems, but haven't verified that. References: http://lkml.kernel.org/r/1448223.sdUJnNSRz4@vostro.rjw.lan Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> Tested-by: Leonid Isaev <lisaev@umail.iu.edu> Acked-by: Borislav Petkov <bp@suse.de> Cc: 3.7+ <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse Pull fuse fixes from Miklos Szeredi: "This contain a bugfix for CUSE and miscellaneous small fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: remove unused variable in fuse_try_move_page() fuse: make fuse_file_fallocate() static fuse: Move CUSE Kconfig entry from fs/Kconfig into fs/fuse/Kconfig cuse: fix uninitialized variable warnings cuse: do not register multiple devices with identical names cuse: use mutex as registration lock instead of spinlocks
2013-01-22Merge tag 'fixes-for-v3.8-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: "Here are some GPIO fixes I stacked up in my GPIO tree: - Remove a bad #include from the Samsung driver - Some Kconfig hazzle for the Samsungs - Skip gpiolib registration on EXYNOS5440 - Don't free the MVEBU label" * tag 'fixes-for-v3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: mvebu: Don't free chip label memory gpio: samsung: skip gpio lib registration for EXYNOS5440 gpio: samsung: silent build warning for EXYNOS5 SoCs gpio: samsung: fix pinctrl condition for exynos and exynos5440 gpio: samsung: remove inclusion <mach/regs-clock.h>
2013-01-22Merge tag 'omap-for-v3.8-rc4/fixes-signed' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes From Tony Lindgren: Minimal omap fixes for the -rc series: - A build fix for recently merged omap DRM changes - Regression fixes from the common clock framework conversion for omap4 audio and omap2 reboot - Regression fix for pandaboard WLAN control UART muxing caused by u-boot only muxing essential pins nowadays - Timer iteration fix for CONFIG_OF_DYNAMIC - A section mismatch fix for ocp2scp init * tag 'omap-for-v3.8-rc4/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (306 commits) ARM: OMAP2+: omap4-panda: add UART2 muxing for WiLink shared transport ARM: OMAP2+: DT node Timer iteration fix ARM: OMAP2+: Fix section warning for omap_init_ocp2scp() ARM: OMAP2+: fix build break for omapdrm ARM: OMAP2: Fix missing omap2xxx_clkt_vps_late_init function calls ARM: OMAP4: hwmod_data: Correct IDLEMODE for McPDM ARM: OMAP4: clock data: Lock ABE DPLL on all revisions + Linux 3.8-rc4 Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-22Merge tag 'f2fs-for-3.8-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs Pull f2fs fixes from Jaegeuk Kim: o Support swap file and link generic_file_remap_pages o Enhance the bio streaming flow and free section control o Major bug fix on recovery routine o Minor bug/warning fixes and code cleanups * tag 'f2fs-for-3.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (22 commits) f2fs: use _safe() version of list_for_each f2fs: add comments of start_bidx_of_node f2fs: avoid issuing small bios due to several dirty node pages f2fs: support swapfile f2fs: add remap_pages as generic_file_remap_pages f2fs: add __init to functions in init_f2fs_fs f2fs: fix the debugfs entry creation path f2fs: add global mutex_lock to protect f2fs_stat_list f2fs: remove the blk_plug usage in f2fs_write_data_pages f2fs: avoid redundant time update for parent directory in f2fs_delete_entry f2fs: remove redundant call to set_blocksize in f2fs_fill_super f2fs: move f2fs_balance_fs to punch_hole f2fs: add f2fs_balance_fs in several interfaces f2fs: revisit the f2fs_gc flow f2fs: check return value during recovery f2fs: avoid null dereference in f2fs_acl_from_disk f2fs: initialize newly allocated dnode structure f2fs: update f2fs partition info about SIT/NAT layout f2fs: update f2fs document to reflect SIT/NAT layout correctly f2fs: remove unneeded INIT_LIST_HEAD at few places ...
2013-01-22Merge tag 'vfio-for-v3.8-rc5' of git://github.com/awilliam/linux-vfioLinus Torvalds
Pull vfio fix from Alex Williamson. "vfio-pci: Fix buffer overfill" * tag 'vfio-for-v3.8-rc5' of git://github.com/awilliam/linux-vfio: vfio-pci: Fix buffer overfill
2013-01-22Merge tag 'trace-3.8-rc4-fix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull ftrace fix from Steven Rostedt: "Kprobes now uses the function tracer if it can. That is, if a probe is placed on a function mcount/nop location, and the arch supports it, instead of adding a breakpoint, kprobes will register a function callback as that is much more efficient. The function tracer requires to update modules before they run, and uses the module notifier to do so. But if something else in the module notifiers registers a kprobe at one of these locations, before ftrace can get to it, then the system could fail. The function tracer must be initialized early, otherwise module notifiers that probe will only work by chance." * tag 'trace-3.8-rc4-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ftrace: Be first to run code modification on modules
2013-01-22Merge tag 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev Pull libata fixes from Jeff Garzik: 1) ahci: Fix typo that caused erronenous error handling. Thought: I wonder if sparse could have caught this, somehow. 2) ahci: support a slightly odd Enmotus variant 3) core: fix a drive detection problem by correcting the logic by which the DevSlp timing variables are obtained and used. * tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] replace sata_settings with devslp_timing [libata] ahci: Add support for Enmotus Bobcat device. [libata] ahci: Fix lack of command retry after a success error handler.
2013-01-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security subsystem bugfixes from James Morris. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: security/device_cgroup: lock assert fails in dev_exception_clean() evm: checking if removexattr is not a NULL
2013-01-22wake_up_process() should be never used to wakeup a TASK_STOPPED/TRACED taskOleg Nesterov
wake_up_process() should never wakeup a TASK_STOPPED/TRACED task. Change it to use TASK_NORMAL and add the WARN_ON(). TASK_ALL has no other users, probably can be killed. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-22ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILLOleg Nesterov
putreg() assumes that the tracee is not running and pt_regs_access() can safely play with its stack. However a killed tracee can return from ptrace_stop() to the low-level asm code and do RESTORE_REST, this means that debugger can actually read/modify the kernel stack until the tracee does SAVE_REST again. set_task_blockstep() can race with SIGKILL too and in some sense this race is even worse, the very fact the tracee can be woken up breaks the logic. As Linus suggested we can clear TASK_WAKEKILL around the arch_ptrace() call, this ensures that nobody can ever wakeup the tracee while the debugger looks at it. Not only this fixes the mentioned problems, we can do some cleanups/simplifications in arch_ptrace() paths. Probably ptrace_unfreeze_traced() needs more callers, for example it makes sense to make the tracee killable for oom-killer before access_process_vm(). While at it, add the comment into may_ptrace_stop() to explain why ptrace_stop() still can't rely on SIGKILL and signal_pending_state(). Reported-by: Salman Qazi <sqazi@google.com> Reported-by: Suleiman Souhlal <suleiman@google.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-22arm64: makefile: fix uname munging when setting ARCH on native machineWill Deacon
By popular demand, arch/aarch64 is now known as arch/arm64. However, uname -m (and indeed the GNU triplet) still use aarch64 as the machine string. This patch fixes native builds of both the kernel and perf tools by updating the relevant Makefiles to munge the output of uname -m and set the ARCH variable appropriately. Cc: <stable@vger.kernel.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-01-22arm64: elf: fix core dumping to match what glibc expectsWill Deacon
The kernel's internal definition of ELF_NGREG uses struct pt_regs, which means that we disagree with userspace on the size of coredumps since glibc correctly uses the user-visible struct user_pt_regs. This patch fixes our ELF_NGREG definition to use struct user_pt_regs and introduces our own ELF_CORE_COPY_REGS to convert between the user and kernel structure definitions. Cc: <stable@vger.kernel.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-01-22USB: EHCI: add a name for the platform-private fieldAlan Stern
This patch (as1642) adds an ehci->priv field for private use by EHCI platform drivers. The space was provided some time ago, but it didn't have a name. Until now none of the platform drivers has used this private space, but that's about to change in the next patch of this series. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-22USB: EHCI: fix incorrect configuration testAlan Stern
This patch (as1641) fixes a minor bug in ehci-hcd left over from when the Chipidea driver was converted to the "ehci-hcd is a library" scheme. The test for whether the Chipidea platform driver is active should be IS_ENABLED(), not defined(). Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-22USB: EHCI: Move definition of EHCI_STATS to ehci.hRoger Quadros
Without this, platform drivers e.g. ehci-omap.c will see a different version of struct ehci_hcd than ehci-hcd.c and break reference to 'debug_dir' and 'priv' members when CONFIG_USB_DEBUG is enabled. Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-22USB: UHCI: fix IRQ race during initializationAlan Stern
This patch (as1644) fixes a race that occurs during startup in uhci-hcd. If the IRQ line is shared with other devices, it's possible for the handler routine to be called before the data structures are fully initialized. The problem is fixed by adding a check to the IRQ handler routine. If the initialization hasn't finished yet, the routine will return immediately. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Don Zickus <dzickus@redhat.com> Tested-by: "Huang, Adrian (ISS Linux TW)" <adrian.huang@hp.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-22ptrace: introduce signal_wake_up_state() and ptrace_signal_wake_up()Oleg Nesterov
Cleanup and preparation for the next change. signal_wake_up(resume => true) is overused. None of ptrace/jctl callers actually want to wakeup a TASK_WAKEKILL task, but they can't specify the necessary mask. Turn signal_wake_up() into signal_wake_up_state(state), reintroduce signal_wake_up() as a trivial helper, and add ptrace_signal_wake_up() which adds __TASK_TRACED. This way ptrace_signal_wake_up() can work "inside" ptrace_request() even if the tracee doesn't have the TASK_WAKEKILL bit set. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-22i2c-designware: add missing MODULE_LICENSEMika Westerberg
The driver can also be built as a module so add MODULE_LICENSE for it. In addition add MODULE_DESCRIPTION as well. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2013-01-22i2c: omap: fix draining irq handlingAaro Koskinen
Commit 0bdfe0cb803dce699ff337c35d8e97ac355fa417 (i2c: omap: sanitize exit path) changed the interrupt handler to exit early and complete the transfer after the draining IRQ is handled. As a result, the ARDY may not be cleared properly, and it may cause all future I2C transfers to timeout with "timeout waiting for bus ready". This is reproducible at least with N900 when twl4030_gpio makes a long write (> FIFO size) during the probe (http://marc.info/?l=linux-omap&m=135818882610432&w=2). The fix is to continue until we get ARDY interrupt that completes the transfer. Tested with 3.8-rc4 + N900: 20 boots in a row without errors; without the patch the problem triggers after few reboots. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2013-01-22i2c: omap: errata i462: fix incorrect ack for arbitration lost interruptAaro Koskinen
The errata handling function acks wrong interrupt in case of "Arbitration lost". Fix it. Discovered during code review, the real impact of the bug is unknown. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2013-01-22ACPI: Check MSR valid bit before using P-state frequenciesStefan Bader
To fix incorrect P-state frequencies which can happen on some AMD systems f594065faf4f9067c2283a34619fc0714e79a98d "ACPI: Add fixups for AMD P-state figures" introduced a quirk to obtain the correct values by reading from AMD specific MSRs. This did cause a regression when running a kernel using that quirk under Xen which does (currently) not pass through MSR reads to the HW. Instead the guest gets a 0 in return. And this seems to cause a failure to initialize the ondemand governour (hard to say for sure as all P-states appear to run at the same frequency). While this should also be fixed in the hypervisor (to allow a guest to read that MSR), this patch is intended to work around the issue in the meantime. In discussion it turned out that indeed real HW/BIOSes may choose to not set the valid bit and thus mark the P-state as invalid. So this could be considered a fix for broken BIOSes that also works around the issue on Xen. Signed-off-by: Stefan Bader <stefan.bader@canonical.com> Cc: 3.7+ <stable@vger.kernel.org> Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-22PM / devfreq: exynos4_bus: honor RCU lock usageNishanth Menon
OPP pointers cannot be expected to be valid beyond the boundary of rcu_read_lock and rcu_read_unlock. Unfortunately, the current exynos4 busfreq driver does not honor the usage constraint and stores the OPP pointer in struct busfreq_data. This could potentially become invalid later such as: across devfreq opp change decisions, resulting in unpredictable behavior. To fix this, we introduce a busfreq specific busfreq_opp_info structure which is used to handle OPP information. OPP information is de-referenced to voltage and frequency pairs as needed into busfreq_opp_info structure and used as needed. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-22PM / devfreq: add locking documentation for recommended_oppNishanth Menon
OPP pointers are protected by RCU locks, the pointer validity is permissible only under the section of rcu_read_lock to rcu_read_unlock Add documentation to the effect. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-22cpufreq: cpufreq-cpu0: use RCU locks around usage of OPPNishanth Menon
OPP pointer is RCU protected, hence after finding it, de-reference also should be protected with the same RCU context else the OPP pointer may become invalid. Reported-by: Jack Mitchell <jack@embed.me.uk> Tested-by: Alexander Holler <holler@ahsoftware.de> Tested-by: Jack Mitchell <jack@embed.me.uk> Acked-by: Alexander Holler <holler@ahsoftware.de> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-22cpufreq: OMAP: use RCU locks around usage of OPPNishanth Menon
OPP pointer is RCU protected, hence after finding it, de-reference also should be protected with the same RCU context else the OPP pointer may become invalid. Reported-by: Alexander Holler <holler@ahsoftware.de> Tested-by: Alexander Holler <holler@ahsoftware.de> Acked-by: Alexander Holler <holler@ahsoftware.de> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-01-22i2c: muxes: fix wrong use of sizeof(ptr)Laurent Navet
sizeof when applied to a pointer typed expression gives the size of the pointer The semantic patch that makes this output is available in scripts/coccinelle/misc/noderef.cocci. More information about semantic patching is available at http://coccinelle.lip6.fr/ Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2013-01-22i2c: sirf: register i2c_client from dt child-nodes in probe entryBarry Song
in probe() entry of i2c_driver, set the of node of adapter and call of_i2c_register_devices to register all i2c_client from dt child-nodes Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2013-01-22i2c: mxs: Fix type of error codeFabio Estevam
cmd_err is used to handle error code, so it should not be unsigned. This fixes the following warning when building with W=1 option: drivers/i2c/busses/i2c-mxs.c: In function 'mxs_i2c_xfer_msg': drivers/i2c/busses/i2c-mxs.c:331:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Marek Vasut <marex@denx.de> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: stable@kernel.org
2013-01-22regmap: fix small typo in regmap_bulk_write commentNestor Ovroy
Signed-off-by: Nestor Ovroy <novroy@riseup.net> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-22Merge tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6 into ↵Olof Johansson
fixes From Sascha Hauer: ARM i.MX fixes for -rc. This contains a single compilation fix for the CODA driver. * tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6: [media] coda: Fix build due to iram.h rename
2013-01-22f2fs: use _safe() version of list_for_eachDan Carpenter
This is calling list_del() inside a loop which is a problem when we try move to the next item on the list. I've converted it to use the _safe version. And also, as a cleanup, I've converted it to use list_for_each_entry instead of list_for_each. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-22f2fs: add comments of start_bidx_of_nodeJaegeuk Kim
The caller of start_bidx_of_node() should give proper node offsets which point only direct node blocks. Otherwise, it is a caller's bug. This patch adds comments to make it clear. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-22f2fs: avoid issuing small bios due to several dirty node pagesJaegeuk Kim
If some small bios of dirty node pages are supposed to be issued during the sequential data writes, there-in well-produced consecutive data bios are able to be split by the small node bios, resulting in performance degradation. So, let's collect a number of dirty node pages until reaching a threshold. And, by default, I set the threshold as 2MB, a segment size. This improves sequential write performance on i5, 512GB SSD (830 w/ SATA2) as follows. Before: 231 MB/s -> After: 255 MB/s Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com> Reviewed-by: Namjae Jeon <namjae.jeon@samsung.com>
2013-01-22f2fs: support swapfileJaegeuk Kim
This patch adds f2fs_bmap operation to the data address space. This enables f2fs to support swapfile. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-22f2fs: add remap_pages as generic_file_remap_pagesJaegeuk Kim
This was added for all the file systems before. See the following commit. commit id: 0b173bc4daa8f8ec03a85abf5e47b23502ff80af [PATCH] mm: kill vma flag VM_CAN_NONLINEAR This patch moves actual ptes filling for non-linear file mappings into special vma operation: ->remap_pages(). File system must implement this method to get non-linear mappings support, if it uses filemap_fault() then generic_file_remap_pages() can be used. Now device drivers can implement this method and obtain nonlinear vma support." Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-22f2fs: add __init to functions in init_f2fs_fsNamjae Jeon
Add __init to functions in init_f2fs_fs for code consistency. Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-21Btrfs: fix a regression in balance usage filterIlya Dryomov
Commit 3fed40cc ("Btrfs: cleanup duplicated division functions"), which was merged into 3.8-rc1, has introduced a regression by removing logic that was guarding us against bad user input. Bring it back. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-01-21Merge branch 'mutex-ops@next-for-chris' of ↵Chris Mason
git://github.com/idryomov/btrfs-unstable into linus
2013-01-21Merge branch 'for-chris' of ↵Chris Mason
git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next into linus
2013-01-21Btrfs: prevent qgroup destroy when there are still relationsArne Jansen
Currently you can just destroy a qgroup even though it is in use by other qgroups or has qgroups assigned to it. This patch prevents destruction of qgroups unless they are completely unused. Otherwise destroy will return EBUSY. Reported-by: Eric Hopper <hopper@omnifarious.org> Signed-off-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-01-21Btrfs: ignore orphan qgroup relationsArne Jansen
If a qgroup that has still assignments is deleted by the user, the corresponding relations are left in the tree. This leads to an unmountable filesystem. With this patch, those relations are simple ignored. Reported-by: Eric Hopper <hopper@omnifarious.org> Signed-off-by: Arne Jansen <sensille@gmx.net> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-01-21Merge tag 'fixes-for-v3.8-rc5' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus Felipe writes: usb: fixes for v3.8-rc5 Finally we have a build fix for fsl-mxc-udc UDC driver. We also have a fix for ep0 maxburst setting on DWC3 which could confuse the HW if we tell it we had way too many streams on that endpoint when it _has_ to be only one. cppi_dma support for MUSB got a fix when running as a module. By dropping the wrong __init annotation, the function will be available even when we're modules and we're done with .init.text section. Last, but not least, we have a fix on FunctionFS which was causing a bug on our option parsing algorithm.
2013-01-21ARM: OMAP2+: omap4-panda: add UART2 muxing for WiLink shared transportLuciano Coelho
Add the UART2 muxing data to the board file (this used to be, erroneously, done in the bootloader). Cc: stable <stable@vger.kernel.org> [3.7] Signed-off-by: Luciano Coelho <coelho@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>