- 25 5月, 2012 26 次提交
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由 Jonas Bonn 提交于
As per commits 2922585b ("lib: Sparc's strncpy_from_user is generic enough, move under lib/") and 92ae03f2 ("x86: merge 32/64-bit versions of 'strncpy_from_user()' and speed it up"), and corresponding discussion on linux-arch. Signed-off-by: NJonas Bonn <jonas@southpole.se> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs由 Linus Torvalds 提交于
Pull ext2, ext3 and quota fixes from Jan Kara: "Interesting bits are: - removal of a special i_mutex locking subclass (I_MUTEX_QUOTA) since quota code does not need i_mutex anymore in any unusual way. - backport (from ext4) of a fix of a checkpointing bug (missing cache flush) that could lead to fs corruption on power failure The rest are just random small fixes & cleanups." * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: ext2: trivial fix to comment for ext2_free_blocks ext2: remove the redundant comment for ext2_export_ops ext3: return 32/64-bit dir name hash according to usage type quota: Get rid of nested I_MUTEX_QUOTA locking subclass quota: Use precomputed value of sb_dqopt in dquot_quota_sync ext2: Remove i_mutex use from ext2_quota_write() reiserfs: Remove i_mutex use from reiserfs_quota_write() ext4: Remove i_mutex use from ext4_quota_write() ext3: Remove i_mutex use from ext3_quota_write() quota: Fix double lock in add_dquot_ref() with CONFIG_QUOTA_DEBUG jbd: Write journal superblock with WRITE_FUA after checkpointing jbd: protect all log tail updates with j_checkpoint_mutex jbd: Split updating of journal superblock and marking journal empty ext2: do not register write_super within VFS ext2: Remove s_dirt handling ext2: write superblock only once on unmount ext3: update documentation with barrier=1 default ext3: remove max_debt in find_group_orlov() jbd: Refine commit writeout logic
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git://git.kernel.org/pub/scm/virt/kvm/kvm由 Linus Torvalds 提交于
Pull KVM changes from Avi Kivity: "Changes include additional instruction emulation, page-crossing MMIO, faster dirty logging, preventing the watchdog from killing a stopped guest, module autoload, a new MSI ABI, and some minor optimizations and fixes. Outside x86 we have a small s390 and a very large ppc update. Regarding the new (for kvm) rebaseless workflow, some of the patches that were merged before we switch trees had to be rebased, while others are true pulls. In either case the signoffs should be correct now." Fix up trivial conflicts in Documentation/feature-removal-schedule.txt arch/powerpc/kvm/book3s_segment.S and arch/x86/include/asm/kvm_para.h. I suspect the kvm_para.h resolution ends up doing the "do I have cpuid" check effectively twice (it was done differently in two different commits), but better safe than sorry ;) * 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (125 commits) KVM: make asm-generic/kvm_para.h have an ifdef __KERNEL__ block KVM: s390: onereg for timer related registers KVM: s390: epoch difference and TOD programmable field KVM: s390: KVM_GET/SET_ONEREG for s390 KVM: s390: add capability indicating COW support KVM: Fix mmu_reload() clash with nested vmx event injection KVM: MMU: Don't use RCU for lockless shadow walking KVM: VMX: Optimize %ds, %es reload KVM: VMX: Fix %ds/%es clobber KVM: x86 emulator: convert bsf/bsr instructions to emulate_2op_SrcV_nobyte() KVM: VMX: unlike vmcs on fail path KVM: PPC: Emulator: clean up SPR reads and writes KVM: PPC: Emulator: clean up instruction parsing kvm/powerpc: Add new ioctl to retreive server MMU infos kvm/book3s: Make kernel emulated H_PUT_TCE available for "PR" KVM KVM: PPC: bookehv: Fix r8/r13 storing in level exception handler KVM: PPC: Book3S: Enable IRQs during exit handling KVM: PPC: Fix PR KVM on POWER7 bare metal KVM: PPC: Fix stbux emulation KVM: PPC: bookehv: Use lwz/stw instead of PPC_LL/PPC_STL for 32-bit fields ...
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由 Linus Torvalds 提交于
Merge tag 'stable/for-linus-3.5-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull Xen updates from Konrad Rzeszutek Wilk: "Features: * Extend the APIC ops implementation and add IRQ_WORKER vector support so that 'perf' can work properly. * Fix self-ballooning code, and balloon logic when booting as initial domain. * Move array printing code to generic debugfs * Support XenBus domains. * Lazily free grants when a domain is dead/non-existent. * In M2P code use batching calls Bug-fixes: * Fix NULL dereference in allocation failure path (hvc_xen) * Fix unbinding of IRQ_WORKER vector during vCPU hot-unplug * Fix HVM guest resume - we would leak an PIRQ value instead of reusing the existing one." Fix up add-add onflicts in arch/x86/xen/enlighten.c due to addition of apic ipi interface next to the new apic_id functions. * tag 'stable/for-linus-3.5-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen: do not map the same GSI twice in PVHVM guests. hvc_xen: NULL dereference on allocation failure xen: Add selfballoning memory reservation tunable. xenbus: Add support for xenbus backend in stub domain xen/smp: unbind irqworkX when unplugging vCPUs. xen: enter/exit lazy_mmu_mode around m2p_override calls xen/acpi/sleep: Enable ACPI sleep via the __acpi_os_prepare_sleep xen: implement IRQ_WORK_VECTOR handler xen: implement apic ipi interface xen/setup: update VA mapping when releasing memory during setup xen/setup: Combine the two hypercall functions - since they are quite similar. xen/setup: Populate freed MFNs from non-RAM E820 entries and gaps to E820 RAM xen/setup: Only print "Freeing XXX-YYY pfn range: Z pages freed" if Z > 0 xen/gnttab: add deferred freeing logic debugfs: Add support to print u32 array in debugfs xen/p2m: An early bootup variant of set_phys_to_machine xen/p2m: Collapse early_alloc_p2m_middle redundant checks. xen/p2m: Allow alloc_p2m_middle to call reserve_brk depending on argument xen/p2m: Move code around to allow for better re-usage.
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc由 Linus Torvalds 提交于
Pull sparc changes from David S. Miller: "This has the generic strncpy_from_user() implementation architectures can now use, which we've been developing on linux-arch over the past few days. For good measure I ran both a 32-bit and a 64-bit glibc testsuite run, and the latter of which pointed out an adjustment I needed to make to sparc's user_addr_max() definition. Linus, you were right, STACK_TOP was not the right thing to use, even on sparc itself :-) From Sam Ravnborg, we have a conversion of sparc32 over to the common alloc_thread_info_node(), since the aspect which originally blocked our doing so (sun4c) has been removed." Fix up trivial arch/sparc/Kconfig and lib/Makefile conflicts. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: Fix user_addr_max() definition. lib: Sparc's strncpy_from_user is generic enough, move under lib/ kernel: Move REPEAT_BYTE definition into linux/kernel.h sparc: Increase portability of strncpy_from_user() implementation. sparc: Optimize strncpy_from_user() zero byte search. sparc: Add full proper error handling to strncpy_from_user(). sparc32: use the common implementation of alloc_thread_info_node()
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git://oss.sgi.com/xfs/xfs由 Linus Torvalds 提交于
Pull XFS update from Ben Myers: - Removal of xfsbufd - Background CIL flushes have been moved to a workqueue. - Fix to xfs_check_page_type applicable to filesystems where blocksize < page size - Fix for stale data exposure when extsize hints are used. - A series of xfs_buf cache cleanups. - Fix for XFS_IOC_ALLOCSP - Cleanups for includes and removal of xfs_lrw.[ch]. - Moved all busy extent handling to it's own file so that it is easier to merge with userspace. - Fix for log mount failure. - Fix to enable inode reclaim during quotacheck at mount time. - Fix for delalloc quota accounting. - Fix for memory reclaim deadlock on agi buffer. - Fixes for failed writes and to clean up stale delalloc blocks. - Fix to use GFP_NOFS in blkdev_issue_flush - SEEK_DATA/SEEK_HOLE support * 'for-linus' of git://oss.sgi.com/xfs/xfs: (57 commits) xfs: add trace points for log forces xfs: fix memory reclaim deadlock on agi buffer xfs: fix delalloc quota accounting on failure xfs: protect xfs_sync_worker with s_umount semaphore xfs: introduce SEEK_DATA/SEEK_HOLE support xfs: make xfs_extent_busy_trim not static xfs: make XBF_MAPPED the default behaviour xfs: flush outstanding buffers on log mount failure xfs: Properly exclude IO type flags from buffer flags xfs: clean up xfs_bit.h includes xfs: move xfs_do_force_shutdown() and kill xfs_rw.c xfs: move xfs_get_extsz_hint() and kill xfs_rw.h xfs: move xfs_fsb_to_db to xfs_bmap.h xfs: clean up busy extent naming xfs: move busy extent handling to it's own file xfs: move xfsagino_t to xfs_types.h xfs: use iolock on XFS_IOC_ALLOCSP calls xfs: kill XBF_DONTBLOCK xfs: kill xfs_read_buf() xfs: kill XBF_LOCK ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull more relocation fixes from Peter Anvin: "These are additional symbols that have been found to either be absolute or look like they might end up being absolute on one version of GNU ld or another. Unfortunately we have since that a different GNU ld version, 2.21, can generate bogus absolute symbols; again, this would have caused a malfunctioning kernel on x86-32 if relocated. The relocs.c changes changed silent corruption to a build time error. It is worth noting that if the various barrier symbols we use were more consistent in the namespace used this probably could be reduced to a single regexp; if nothing else it looks like there is migration toward a common __(start|stop)___.* namespace." * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, relocs: Add jiffies and jiffies_64 to the relative whitelist x86-32, relocs: Whitelist more symbols for ld bug workaround
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git://git.secretlab.ca/git/linux-2.6由 Linus Torvalds 提交于
Pull GPIO driver changes from Grant Likely: "Lots of gpio changes, both to core code and drivers. Changes do touch architecture code to remove the need for separate arm/gpio.h includes in most architectures. Some new drivers are added, and a number of gpio drivers are converted to use irq_domains for gpio inputs used as interrupts. Device tree support has been amended to allow multiple gpio_chips to use the same device tree node. Remaining changes are primarily bug fixes." * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: (33 commits) gpio/generic: initialize basic_mmio_gpio shadow variables properly gpiolib: Remove 'const' from data argument of gpiochip_find() gpio/rc5t583: add gpio driver for RICOH PMIC RC5T583 gpiolib: quiet gpiochip_add boot message noise gpio: mpc8xxx: Prevent NULL pointer deref in demux handler gpio/lpc32xx: Add device tree support gpio: Adjust of_xlate API to support multiple GPIO chips gpiolib: Implement devm_gpio_request_one() gpio-mcp23s08: dbg_show: fix pullup configuration display Add support for TCA6424A gpio/omap: (re)fix wakeups on level-triggered GPIOs gpio/omap: fix broken context restore for non-OFF mode transitions gpio/omap: fix missing check in *_runtime_suspend() gpio/omap: remove cpu_is_omapxxxx() checks from *_runtime_resume() gpio/omap: remove suspend/resume callbacks gpio/omap: remove retrigger variable in gpio_irq_handler gpio/omap: remove saved_wakeup field from struct gpio_bank gpio/omap: remove suspend_wakeup field from struct gpio_bank gpio/omap: remove saved_fallingdetect, saved_risingdetect gpio/omap: remove virtual_irq_start variable ... Conflicts: drivers/gpio/gpio-samsung.c
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git://git.secretlab.ca/git/linux-2.6由 Linus Torvalds 提交于
Pull device tree changes from Grant Likely: "Mostly documentation updates, but also includes an empty stub for non-CONFIG_OF builds." * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6: dt/documentation: Fix value format description dt: add vendor prefix for EM Microelectronics ARM: DT: Add binding for GIC virtualization extentions (VGIC) of/irq: add empty irq_of_parse_and_map() for non-dt builds
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git://git.secretlab.ca/git/linux-2.6由 Linus Torvalds 提交于
Pull SPI changes from Grant Likely: "Bug fixes and new features for SPI device drivers. Also move device tree support code out of drivers/of and into drivers/spi/spi.c where it makes more sense." * tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6: spi: By default setup spi_masters with 1 chipselect and dynamics bus number SPI: PRIMA2: use the newest APIs of PINCTRL to fix compiling errors spi/spi-fsl-spi: reference correct pdata in fsl_spi_cs_control spi: refactor spi-coldfire-qspi to use SPI queue framework. spi/omap2-mcspi: convert to the pump message infrastructure spi/rspi: add dmaengine support spi/topcliff: use correct __devexit_p annotation spi: Dont call prepare/unprepare transfer if not populated spi/ep93xx: clean probe/remove routines spi/devicetree: Move devicetree support code into spi directory spi: use module_pci_driver spi/omap2-mcspi: Trivial optimisation spi: omap2-mcspi: add support for pm_runtime autosuspend spi/omap: Remove bus_num usage for instance index OMAP : SPI : use devm_* functions spi: omap2-mcspi: convert to module_platform_driver spi: omap2-mcspi: make it behave as a module
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git://git.secretlab.ca/git/linux-2.6由 Linus Torvalds 提交于
Pull irqdomain changes from Grant Likely: "Minor changes and fixups for irqdomain infrastructure. The most important change adds the ability to remove a registered irqdomain." * tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6: irqdomain: Document size parameter of irq_domain_add_linear() irqdomain: trivial pr_fmt conversion. irqdomain: Kill off duplicate definitions. irqdomain: Make irq_domain_simple_map() static. irqdomain: Export remaining public API symbols. irqdomain: Support removal of IRQ domains.
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git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha由 Linus Torvalds 提交于
Pull alpha updates from Matt Turner: "This pull adds the implementations of some Tru64 syscalls which allow some proprietary software such as the C compiler to work on Linux. Also, it adds some big-endian ioread functions to help us get closer to building allyesconfig." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha: alpha: add io{read,write}{16,32}be functions alpha: implement various OSF/1 stat syscalls alpha: implement setsysinfo(SSI_LMF) as a no-op
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由 David S. Miller 提交于
We need to use TASK_SIZE because for 64-bit tasks the value of STACK_TOP actually sits in the middle of the address space so we'll get false-negatives. Adjust the TASK_SIZE definition on sparc64 to accomodate this, in the context in which user_addr_max() is used we have the test_thread_flag() definition available but not the one for test_tsk_thread_flag(). Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull timer updates from Thomas Gleixner. Various trivial conflict fixups in arch Kconfig due to addition of unrelated entries nearby. And one slightly more subtle one for sparc32 (new user of GENERIC_CLOCKEVENTS), fixed up as per Thomas. * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits) timekeeping: Fix a few minor newline issues. time: remove obsolete declaration ntp: Fix a stale comment and a few stray newlines. ntp: Correct TAI offset during leap second timers: Fixup the Kconfig consolidation fallout x86: Use generic time config unicore32: Use generic time config um: Use generic time config tile: Use generic time config sparc: Use: generic time config sh: Use generic time config score: Use generic time config s390: Use generic time config openrisc: Use generic time config powerpc: Use generic time config mn10300: Use generic time config mips: Use generic time config microblaze: Use generic time config m68k: Use generic time config m32r: Use generic time config ...
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由 David S. Miller 提交于
To use this, an architecture simply needs to: 1) Provide a user_addr_max() implementation via asm/uaccess.h 2) Add "select GENERIC_STRNCPY_FROM_USER" to their arch Kcnfig 3) Remove the existing strncpy_from_user() implementation and symbol exports their architecture had. Signed-off-by: NDavid S. Miller <davem@davemloft.net> Acked-by: NDavid Howells <dhowells@redhat.com>
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由 David S. Miller 提交于
And make sure that everything using it explicitly includes that header file. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Hide details of maximum user address calculation in a new asm/uaccess.h interface named user_addr_max(). Provide little-endian implementation in find_zero(), which should work but can probably be improved. Abstrace alignment check behind IS_UNALIGNED() macro. Kill double-semicolon, noticed by David Howells. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394由 Linus Torvalds 提交于
Pull IEEE 1394 (FireWire) subsystem updates from Stefan Richter: - Fix mismatch between DMA mapping direction (was wrong) and DMA synchronization direction (was correct) of isochronous reception buffers of userspace drivers if vma-mapped for R/W access. For example, libdc1394 was affected. - more consistent retry stategy in device discovery/ rediscovery, and improved failure diagnostics - various small cleanups, e.g. use SCSI layer's DMA mapping API in firewire-sbp2 * tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: firewire: sbp2: document the absence of alignment requirements firewire: sbp2: remove superfluous blk_queue_max_segment_size() call firewire: sbp2: use scsi_dma_(un)map firewire: sbp2: give correct DMA device to scsi framework firewire: core: fw_device_refresh(): clean up error handling firewire: core: log config rom reading errors firewire: core: log error in case of failed bus manager lock firewire: move rcode_string() to core firewire: core: improve reread_config_rom() interface firewire: core: wait for inaccessible devices after bus reset firewire: ohci: omit spinlock IRQ flags where possible firewire: ohci: correct signedness of a local variable firewire: core: fix DMA mapping direction firewire: use module_pci_driver
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git://people.freedesktop.org/~airlied/linux由 Linus Torvalds 提交于
Pull main drm updates from Dave Airlie: "This is the main merge window request for the drm. It's big, but jam packed will lots of features and of course 0 regressions. (okay maybe there'll be one). Highlights: - new KMS drivers for server GPU chipsets: ast, mgag200 and cirrus (qemu only). These drivers use the generic modesetting drivers. - initial prime/dma-buf support for i915, nouveau, radeon, udl and exynos - switcheroo audio support: so GPUs with HDMI can turn off the sound driver without crashing stuff. - There are some patches drifting outside drivers/gpu into x86 and EFI for better handling of multiple video adapters in Apple Macs, they've got correct acks except one trivial fixup. - Core: edid parser has better DMT and reduced blanking support, crtc properties, plane properties, - Drivers: exynos: add 2D core accel support, prime support, hdmi features intel: more Haswell support, initial Valleyview support, more hdmi infoframe fixes, update MAINTAINERS for Daniel, lots of cleanups and fixes radeon: more HDMI audio support, improved GPU lockup recovery support, remove nested mutexes, less memory copying on PCIE, fix bus master enable race (kexec), improved fence handling gma500: cleanups, 1080p support, acpi fixes nouveau: better nva3 memory reclocking, kepler accel (needs external firmware rip), async buffer moves on nv84+ hw. I've some more dma-buf patches that rely on the dma-buf merge for vmap stuff, and I've a few fixes building up, but I'd decided I'd better get rid of the main pull sooner rather than later, so the audio guys are also unblocked." Fix up trivial conflict due to some duplicated changes in drivers/gpu/drm/i915/intel_ringbuffer.c * 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (605 commits) drm/nouveau/nvd9: Fix GPIO initialisation sequence. drm/nouveau: Unregister switcheroo client on exit drm/nouveau: Check dsm on switcheroo unregister drm/nouveau: fix a minor annoyance in an output string drm/nouveau: turn a BUG into a WARN drm/nv50: decode PGRAPH DATA_ERROR = 0x24 drm/nouveau/disp: fix dithering not being enabled on some eDP macbooks drm/nvd9/copy: initialise copy engine, seems to work like nvc0 drm/nvc0/ttm: use copy engines for async buffer moves drm/nva3/ttm: use copy engine for async buffer moves drm/nv98/ttm: add in a (disabled) crypto engine buffer copy method drm/nv84/ttm: use crypto engine for async buffer copies drm/nouveau/ttm: untangle code to support accelerated buffer moves drm/nouveau/fbcon: use fence for sync, rather than notifier drm/nv98/crypt: non-stub implementation of the engine hooks drm/nouveau/fifo: turn all fifo modules into engine modules drm/nv50/graph: remove ability to do interrupt-driven context switching drm/nv50: remove manual context unload on context destruction drm/nv50: remove execution engine context saves on suspend drm/nv50/fifo: use hardware channel kickoff functionality ...
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net由 Linus Torvalds 提交于
Pull more networking updates from David Miller: "Ok, everything from here on out will be bug fixes." 1) One final sync of wireless and bluetooth stuff from John Linville. These changes have all been in his tree for more than a week, and therefore have had the necessary -next exposure. John was just away on a trip and didn't have a change to send the pull request until a day or two ago. 2) Put back some defines in user exposed header file areas that were removed during the tokenring purge. From Stephen Hemminger and Paul Gortmaker. 3) A bug fix for UDP hash table allocation got lost in the pile due to one of those "you got it.. no I've got it.." situations. :-) From Tim Bird. 4) SKB coalescing in TCP needs to have stricter checks, otherwise we'll try to coalesce overlapping frags and crash. Fix from Eric Dumazet. 5) RCU routing table lookups can race with free_fib_info(), causing crashes when we deref the device pointers in the route. Fix by releasing the net device in the RCU callback. From Yanmin Zhang. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (293 commits) tcp: take care of overlaps in tcp_try_coalesce() ipv4: fix the rcu race between free_fib_info and ip_route_output_slow mm: add a low limit to alloc_large_system_hash ipx: restore token ring define to include/linux/ipx.h if: restore token ring ARP type to header xen: do not disable netfront in dom0 phy/micrel: Fix ID of KSZ9021 mISDN: Add X-Tensions USB ISDN TA XC-525 gianfar:don't add FCB length to hard_header_len Bluetooth: Report proper error number in disconnection Bluetooth: Create flags for bt_sk() Bluetooth: report the right security level in getsockopt Bluetooth: Lock the L2CAP channel when sending Bluetooth: Restore locking semantics when looking up L2CAP channels Bluetooth: Fix a redundant and problematic incoming MTU check Bluetooth: Add support for Foxconn/Hon Hai AR5BBU22 0489:E03C Bluetooth: Fix EIR data generation for mgmt_device_found Bluetooth: Fix Inquiry with RSSI event mask Bluetooth: improve readability of l2cap_seq_list code Bluetooth: Fix skb length calculation ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull user-space probe instrumentation from Ingo Molnar: "The uprobes code originates from SystemTap and has been used for years in Fedora and RHEL kernels. This version is much rewritten, reviews from PeterZ, Oleg and myself shaped the end result. This tree includes uprobes support in 'perf probe' - but SystemTap (and other tools) can take advantage of user probe points as well. Sample usage of uprobes via perf, for example to profile malloc() calls without modifying user-space binaries. First boot a new kernel with CONFIG_UPROBE_EVENT=y enabled. If you don't know which function you want to probe you can pick one from 'perf top' or can get a list all functions that can be probed within libc (binaries can be specified as well): $ perf probe -F -x /lib/libc.so.6 To probe libc's malloc(): $ perf probe -x /lib64/libc.so.6 malloc Added new event: probe_libc:malloc (on 0x7eac0) You can now use it in all perf tools, such as: perf record -e probe_libc:malloc -aR sleep 1 Make use of it to create a call graph (as the flat profile is going to look very boring): $ perf record -e probe_libc:malloc -gR make [ perf record: Woken up 173 times to write data ] [ perf record: Captured and wrote 44.190 MB perf.data (~1930712 $ perf report | less 32.03% git libc-2.15.so [.] malloc | --- malloc 29.49% cc1 libc-2.15.so [.] malloc | --- malloc | |--0.95%-- 0x208eb1000000000 | |--0.63%-- htab_traverse_noresize 11.04% as libc-2.15.so [.] malloc | --- malloc | 7.15% ld libc-2.15.so [.] malloc | --- malloc | 5.07% sh libc-2.15.so [.] malloc | --- malloc | 4.99% python-config libc-2.15.so [.] malloc | --- malloc | 4.54% make libc-2.15.so [.] malloc | --- malloc | |--7.34%-- glob | | | |--93.18%-- 0x41588f | | | --6.82%-- glob | 0x41588f ... Or: $ perf report -g flat | less # Overhead Command Shared Object Symbol # ........ ............. ............. .......... # 32.03% git libc-2.15.so [.] malloc 27.19% malloc 29.49% cc1 libc-2.15.so [.] malloc 24.77% malloc 11.04% as libc-2.15.so [.] malloc 11.02% malloc 7.15% ld libc-2.15.so [.] malloc 6.57% malloc ... The core uprobes design is fairly straightforward: uprobes probe points register themselves at (inode:offset) addresses of libraries/binaries, after which all existing (or new) vmas that map that address will have a software breakpoint injected at that address. vmas are COW-ed to preserve original content. The probe points are kept in an rbtree. If user-space executes the probed inode:offset instruction address then an event is generated which can be recovered from the regular perf event channels and mmap-ed ring-buffer. Multiple probes at the same address are supported, they create a dynamic callback list of event consumers. The basic model is further complicated by the XOL speedup: the original instruction that is probed is copied (in an architecture specific fashion) and executed out of line when the probe triggers. The XOL area is a single vma per process, with a fixed number of entries (which limits probe execution parallelism). The API: uprobes are installed/removed via /sys/kernel/debug/tracing/uprobe_events, the API is integrated to align with the kprobes interface as much as possible, but is separate to it. Injecting a probe point is privileged operation, which can be relaxed by setting perf_paranoid to -1. You can use multiple probes as well and mix them with kprobes and regular PMU events or tracepoints, when instrumenting a task." Fix up trivial conflicts in mm/memory.c due to previous cleanup of unmap_single_vma(). * 'perf-uprobes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits) perf probe: Detect probe target when m/x options are absent perf probe: Provide perf interface for uprobes tracing: Fix kconfig warning due to a typo tracing: Provide trace events interface for uprobes tracing: Extract out common code for kprobes/uprobes trace events tracing: Modify is_delete, is_return from int to bool uprobes/core: Decrement uprobe count before the pages are unmapped uprobes/core: Make background page replacement logic account for rss_stat counters uprobes/core: Optimize probe hits with the help of a counter uprobes/core: Allocate XOL slots for uprobes use uprobes/core: Handle breakpoint and singlestep exceptions uprobes/core: Rename bkpt to swbp uprobes/core: Make order of function parameters consistent across functions uprobes/core: Make macro names consistent uprobes: Update copyright notices uprobes/core: Move insn to arch specific structure uprobes/core: Remove uprobe_opcode_sz uprobes/core: Make instruction tables volatile uprobes: Move to kernel/events/ uprobes/core: Clean up, refactor and improve the code ...
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由 Michael Cree 提交于
These functions are used in some PCI drivers with big-endian MMIO space. Admittedly it is almost certain that no one this side of the Moon would use such a card in an Alpha but it does get us closer to being able to build allyesconfig or allmodconfig, and it enables the Debian default generic config to build. Tested-by: NRaúl Porcel <armin76@gentoo.org> Signed-off-by: NMichael Cree <mcree@orcon.net.nz> Signed-off-by: NMatt Turner <mattst88@gmail.com>
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由 Mans Rullgard 提交于
This implements OSF/1 versions of stat, lstat, fstat, statfs64, and fstatfs64 syscalls. Signed-off-by: NMans Rullgard <mans@mansr.com> Signed-off-by: NMatt Turner <mattst88@gmail.com>
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由 Mans Rullgard 提交于
This allows running software using the Tru64 license manager. For simplicity, no check for a valid license is done. This should not be seen as encouraging software piracy. Signed-off-by: NMans Rullgard <mans@mansr.com> Signed-off-by: NMatt Turner <mattst88@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input由 Linus Torvalds 提交于
Pull input layer updates from Dmitry Torokhov: - a bunch of new drivers (DA9052/53 touchscreenn controller, Synaptics Navpoint, LM8333 keypads, Wacom I2C touhscreen); - updates to existing touchpad drivers (ALPS, Sntelic); - Wacom driver now supports Intuos5; - device-tree bindings in numerous drivers; - other cleanups and fixes. Fix annoying conflict in drivers/input/tablet/wacom_wac.c that I think implies that the input layer device naming is broken, but let's see. I brough it up with Dmitry. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits) Input: matrix-keymap - fix building keymaps Input: spear-keyboard - document DT bindings Input: spear-keyboard - add device tree bindings Input: matrix-keymap - wire up device tree support Input: matrix-keymap - uninline and prepare for device tree support Input: adp5588 - add support for gpio names Input: omap-keypad - dynamically handle register offsets Input: synaptics - fix compile warning MAINTAINERS: adjust input-related patterns Input: ALPS - switch to using input_mt_report_finger_count Input: ALPS - add semi-MT support for v4 protocol Input: Add Synaptics NavPoint (PXA27x SSP/SPI) driver Input: atmel_mxt_ts - dump each message on just 1 line Input: atmel_mxt_ts - do not read extra (checksum) byte Input: atmel_mxt_ts - verify object size in mxt_write_object Input: atmel_mxt_ts - only allow root to update firmware Input: atmel_mxt_ts - use CONFIG_PM_SLEEP Input: sentelic - report device's production serial number Input: tl6040-vibra - Device Tree support Input: evdev - properly handle read/write with count 0 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media由 Linus Torvalds 提交于
Pull media updates from Mauro Carvalho Chehab: - some V4L2 API updates needed by embedded devices - DVB API extensions for ATSC-MH delivery system, used in US for mobile TV - new tuners for fc0011/0012/0013 and tua9001 - a new dvb driver for af9033/9035 - a new ATSC-MH frontend (lg2160) - new remote controller keymaps - Removal of a few legacy webcam driver that got replaced by gspca on several kernel versions ago - a new driver for Exynos 4/5 webcams(s5pp fimc-lite) - a new webcam sensor driver (smiapp) - a new video input driver for embedded (sta2x1xx) - several improvements, fixes, cleanups, etc inside the drivers. Manually fix up conflicts due to err() -> dev_err() conversion in drivers/staging/media/easycap/easycap_main.c * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (484 commits) [media] saa7134-cards: Remove a PCI entry added by mistake [media] radio-sf16fmi: add support for SF16-FMD [media] rc-loopback: remove duplicate line [media] patch for Asus My Cinema PS3-100 (1043:48cd) [media] au0828: Move the Kconfig knob under V4L_USB_DRIVERS [media] em28xx: simple comment fix [media] [resend] radio-sf16fmr2: add PnP support for SF16-FMD2 [media] smiapp: Use v4l2_ctrl_new_int_menu() instead of v4l2_ctrl_new_custom() [media] smiapp: Add support for 8-bit uncompressed formats [media] smiapp: Allow generic quirk registers [media] smiapp: Use non-binning limits if the binning limit is zero [media] smiapp: Initialise rval in smiapp_read_nvm() [media] smiapp: Round minimum pre_pll up rather than down in ip_clk_freq check [media] smiapp: Use 8-bit reads only before identifying the sensor [media] smiapp: Quirk for sensors that only do 8-bit reads [media] smiapp: Pass struct sensor to register writing commands instead of i2c_client [media] smiapp: Allow using external clock from the clock framework [media] zl10353: change .read_snr() to report SNR as a 0.1 dB [media] media: add support to gspca/pac7302.c for 093a:2627 (Genius FaceCam 300) [media] m88rs2000 - only flip bit 2 on reg 0x70 on 16th try ...
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- 24 5月, 2012 14 次提交
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由 H. Peter Anvin 提交于
The symbol jiffies is created in the linker script as an alias to jiffies_64. Unfortunately this is done outside any section, and apparently GNU ld 2.21 doesn't carry the section with it, so we end up with an absolute symbol and therefore a broken kernel. Add jiffies and jiffies_64 to the whitelist. The most disturbing bit with this discovery is that it shows that we have had multiple linker bugs in this area crossing multiple generations, and have been silently building bad kernels for some time. Link: http://lkml.kernel.org/r/20120524171604.0d98284f3affc643e9714470@canb.auug.org.auReported-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NH. Peter Anvin <hpa@zytor.com> Cc: <stable@vger.kernel.org> v3.4
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由 Dave Airlie 提交于
Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-core-next Ben was distracted: "Apologies for being really late with this, feel free to bash me in the future so I remember on time! Overview: - improvements to reclocking (especially memory) on nva3+ - kepler accel support (if you have blob ucode) - better inter-channel synchronisation on nv84+ - async ttm buffer moves on nv84+ (earlier cards don't have a non-PGRAPH engine that's useful)" * 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (60 commits) drm/nouveau/nvd9: Fix GPIO initialisation sequence. drm/nouveau: Unregister switcheroo client on exit drm/nouveau: Check dsm on switcheroo unregister drm/nouveau: fix a minor annoyance in an output string drm/nouveau: turn a BUG into a WARN drm/nv50: decode PGRAPH DATA_ERROR = 0x24 drm/nouveau/disp: fix dithering not being enabled on some eDP macbooks drm/nvd9/copy: initialise copy engine, seems to work like nvc0 drm/nvc0/ttm: use copy engines for async buffer moves drm/nva3/ttm: use copy engine for async buffer moves drm/nv98/ttm: add in a (disabled) crypto engine buffer copy method drm/nv84/ttm: use crypto engine for async buffer copies drm/nouveau/ttm: untangle code to support accelerated buffer moves drm/nouveau/fbcon: use fence for sync, rather than notifier drm/nv98/crypt: non-stub implementation of the engine hooks drm/nouveau/fifo: turn all fifo modules into engine modules drm/nv50/graph: remove ability to do interrupt-driven context switching drm/nv50: remove manual context unload on context destruction drm/nv50: remove execution engine context saves on suspend drm/nv50/fifo: use hardware channel kickoff functionality ...
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由 Dmitry Torokhov 提交于
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由 Dmitry Torokhov 提交于
Keymaps used by drivers based on matrix-keymap facilities are arrays of unsigned shorts, not chars. Treating them otherwise produces corrupted keymaps. Reported-by: NSourav Poddar <sourav.poddar@ti.com> Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
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由 Marcin Kościelnicki 提交于
Signed-off-by: NMarcin Kościelnicki <koriakin@0x04.net> Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
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由 Andreas Heider 提交于
Currently nouveau only registers as a vga_switcheroo client, but never unregisters. This patch adds the necessary unregister calls. Signed-off-by: NAndreas Heider <andreas@meetr.de> Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
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由 Andreas Heider 提交于
Currently vga_switcheroo_unregister_handler is called unconditionally when nouveau is unloaded, even when nouveau never registered a handler. This interferes with other switcheroo handlers, as vga_switcheroo doesn't check who called unregister_handler, but simply unregisters the current handler. This patch adds a check so unregister is only called if a handler was registered by nouveau before. Signed-off-by: NAndreas Heider <andreas@meetr.de> Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
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由 Ben Skeggs 提交于
Bugs me every time I put in the TNT2.. Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
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由 Ben Skeggs 提交于
This is very annoying sometimes.. Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
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由 Marcin Slusarz 提交于
Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
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由 Ben Skeggs 提交于
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
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由 Ben Skeggs 提交于
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
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由 Ben Skeggs 提交于
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
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由 Ben Skeggs 提交于
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
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