- 06 8月, 2009 6 次提交
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由 Frederic Weisbecker 提交于
The function graph events helpers which insert the function entry and return events into the ring buffer currently reside in trace.c But this file is quite overloaded and the right place for these helpers is in the function graph tracer file. Then move them to trace_functions_graph.c Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org>
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由 Frederic Weisbecker 提交于
The sched events helpers which insert the sched switch and wakeup events into the ring buffer currently reside in trace.c But this file is quite overloaded and the right place for these helpers is in the sched switch tracer file. Then move them to trace_functions.c Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org>
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由 Frederic Weisbecker 提交于
Make the stacktrace event insertion helpers globals. This has two effects: - Prepare for moving the sched events insertion helpers to the sched switch tracer file. - Move some ifdef outside function definitions Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org>
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由 Frederic Weisbecker 提交于
In order to prepare the moving of the function graph tracer insertion helpers from trace.c to trace_functions_graph.c, we need to export the ftrace_cpu_disabled variable. Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org>
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由 Frederic Weisbecker 提交于
The function graph tracer used to have a protection against NMI while entering a function entry tracing. But this is useless now, this tracer is reentrant and the ring buffer supports the NMI tracing. We can then drop this protection. Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org>
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由 Lai Jiangshan 提交于
print_graph_cpu() is little over-designed. And "log10_all" may be wrong when there are holes in cpu_online_mask: the max online cpu id > cpumask_weight(cpu_online_mask) So change it by using a static column length for the cpu matching nr_cpu_ids number of decimal characters. Signed-off-by: NLai Jiangshan <laijs@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <4A6EEE5E.2000001@cn.fujitsu.com> Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
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- 21 7月, 2009 2 次提交
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由 Li Zefan 提交于
Currently a subsystem filter should be applicable to all events under the subsystem, and if it failed, all the event filters will be cleared. Those behaviors make subsys filter much less useful: # echo 'vec == 1' > irq/softirq_entry/filter # echo 'irq == 5' > irq/filter bash: echo: write error: Invalid argument # cat irq/softirq_entry/filter none I'd expect it set the filter for irq_handler_entry/exit, and not touch softirq_entry/exit. The basic idea is, try to see if the filter can be applied to which events, and then just apply to the those events: # echo 'vec == 1' > softirq_entry/filter # echo 'irq == 5' > filter # cat irq_handler_entry/filter irq == 5 # cat softirq_entry/filter vec == 1 Changelog for v2: - do some cleanups to address Frederic's comments. Inspired-by: NSteven Rostedt <srostedt@redhat.com> Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Acked-by: NFrederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <4A63D485.7030703@cn.fujitsu.com> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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由 Xiao Guangrong 提交于
'\n' is already appended, and what we need is just an extra space for the '\0'. Signed-off-by: NXiao Guangrong <xiaoguangrong@cn.fujitsu.com> LKML-Reference: <4A3EED63.3090908@cn.fujitsu.com> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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- 20 7月, 2009 2 次提交
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由 Li Zefan 提交于
When a dynamic array is defined, we add __data_loc_foo in trace_entry to record the offset of the array, but the size of the array is not recorded, which causes 2 problems: - the event filter just compares the first 2 chars of the strings. - parsers can't parse dynamic arrays. So we encode the size of each dynamic array in the higher 16 bits of __data_loc_foo, while the offset is in lower 16 bits. Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> LKML-Reference: <4A5E964A.9000403@cn.fujitsu.com> Acked-by: NFrederic Weisbecker <fweisbec@gmail.com> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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由 Lai Jiangshan 提交于
The format file doesn't contain enough information for __dynamic_array/__string. The type name is missing. Before: # cat format: name: irq_handler_entry ... field:__data_loc name; offset:16; size:2; After: # cat format: name: irq_handler_entry ... field:__data_loc char[] name; offset:16; size:2; Signed-off-by: NLai Jiangshan <laijs@cn.fujitsu.com> LKML-Reference: <4A5E962E.9020900@cn.fujitsu.com> Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Acked-by: NFrederic Weisbecker <fweisbec@gmail.com> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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- 18 7月, 2009 6 次提交
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由 jolsa@redhat.com 提交于
I was reading throught the recordmcount.pl starting comment, and spotted a tiny discrepancy. The second example is about my_func not being global, but the example code has the ".globl my_func" statement just moved. Signed-off-by: NJiri Olsa <jolsa@redhat.com> Cc: rostedt@goodmis.org LKML-Reference: <1247773468-11594-4-git-send-email-jolsa@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 jolsa@redhat.com 提交于
Signed-off-by: NJiri Olsa <jolsa@redhat.com> Cc: rostedt@goodmis.org LKML-Reference: <1247773468-11594-2-git-send-email-jolsa@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Merge reason: tracing/core was on an older, pre-rc1 base. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6由 Linus Torvalds 提交于
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm: Move a dereference below a NULL test fb/intelfb: conflict with DRM_I915 and hide by default drm/ttm: fix misplaced parentheses drm/via: Fix vblank IRQ on VIA hardware. drm: drm_gem, check kzalloc retval drm: drm_debugfs, check kmalloc retval drm/radeon: add some missing pci ids
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git://git.kernel.org/pub/scm/linux/kernel/git/fyu/linux-2.6由 Linus Torvalds 提交于
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/fyu/linux-2.6: Revert "Neither asm/types.h nor linux/types.h is required for arch/ia64/include/asm/fpu.h" Add dma_debug_init() for ia64 Fix ia64 compilation IS_ERR and PTE_ERR errors.
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: x86/pci: insert ioapic resource before assigning unassigned resources
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- 17 7月, 2009 24 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: riptide - proper handling of pci_register_driver for joystick sound: usb-audio: add workaround for Blue Microphones devices ALSA: hda_intel: more strict alc880_parse_auto_config dig_nid checking ASoC: Fix NULL pointer dereference in __pxa2xx_pcm_hw_free
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: virtio_net: Sync header with qemu virtio-pci: correctly unregister root device on error virtio_blk: ioctl return value fix virtio_blk: don't bounce highmem requests lguest: restrict CPUID to avoid perf counter wrmsr lguest: remove unnecessary forward struct declaration lguest: fix journey
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由 Linus Torvalds 提交于
Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing/function: Fix the return value of ftrace_trace_onoff_callback()
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由 Alan Cox 提交于
Whoops.. fortunately not many people use this yet. Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Aurelien Jarno 提交于
asm/fpu.h uses the __IA64_UL macro which is declared in asm/types.h, so this include is really required. Without it, GNU libc fails to build. This reverts commit 2678c07b. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> Acked-by: NFenghua Yu <fenghua.yu@intel.com>
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由 fujita 提交于
The commit 99162195 was supposed to add CONFIG_DMA_API_DEBUG support to IA64 however I forgot to add dma_debug_init(). Signed-off-by: Nfujita <fujita@tulip.osrg.net> Acked-by: NFenghua Yu <fenghua.yu@intel.com>
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由 Fenghua Yu 提交于
When building ia64 kernel with CONFIG_XEN_SYS_HYPERVISOR, compiler reports errors: drivers/xen/sys-hypervisor.c: In function ‘uuid_show’: drivers/xen/sys-hypervisor.c:125: error: implicit declaration of function ‘IS_ERR’ drivers/xen/sys-hypervisor.c:126: error: implicit declaration of function ‘PTR_ERR’ This patch fixes the errors. Signed-off-by: NFenghua Yu <fenghua.yu@intel.com> Acked-by: NIsaku Yamahata <yamahata@valinux.co.jp>
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由 Alex Williamson 提交于
Qemu added support for a few extra RX modes that Linux doesn't currently make use of. Sync the headers to maintain consistency. Signed-off-by: NAlex Williamson <alex.williamson@hp.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Mark McLoughlin 提交于
If pci_register_driver() fails we're incorrectly unregistering the root device with device_unregister() rather than root_device_unregister(). Reported-by: NDon Zickus <dzickus@redhat.com> Signed-off-by: NMark McLoughlin <markmc@redhat.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Christoph Hellwig 提交于
Block driver ioctl methods must return ENOTTY and not -ENOIOCTLCMD if they expect the block layer to handle generic ioctls. This triggered a BLKROSET failure in xfsqa #200. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Christoph Hellwig 提交于
By default a block driver bounces highmem requests, but virtio-blk is perfectly fine with any request that fit into it's 64 bit addressing scheme, mapped in the kernel virtual space or not. Besides improving performance on highmem systems this also makes the reproducible oops in __bounce_end_io go away (but hiding the real cause). Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Rusty Russell 提交于
Avoid the following: [ 0.012093] WARNING: at arch/x86/kernel/apic/apic.c:249 native_apic_write_dummy+0x2f/0x40() Rather than chase each new cpuid-detected feature, just lie about the highest valid CPUID so this code is never run. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Davide Libenzi 提交于
While fixing lg.h to drop the fwd declaration, I noticed there's another one ;) Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Matias Zabaljauregui 提交于
fix: "make Guest" was complaining about duplicated G:032 Signed-off-by: NMatias Zabaljauregui <zabaljauregui@gmail.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Xiao Guangrong 提交于
We can directly use %pf input format instead of kallsyms_lookup() and %s input format Signed-off-by: NXiao Guangrong <xiaoguangrong@cn.fujitsu.com> Reviewed-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
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由 Xiao Guangrong 提交于
We can directly use %pF input format instead of sprint_symbol() and %s input format. Signed-off-by: NXiao Guangrong <xiaoguangrong@cn.fujitsu.com> Reviewed-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
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由 Xiao Guangrong 提交于
Rewrite the __ftrace_replace_code() function, simplify it, but don't change the code's logic. First, we get the state we want to set, if the record has the same state, then do nothing, otherwise enable/disable it. Signed-off-by: NXiao Guangrong <xiaoguangrong@cn.fujitsu.com> Reviewed-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
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由 Xiao Guangrong 提交于
ftrace_trace_onoff_callback() will return an error even if we do the right operation, for example: # echo _spin_*:traceon:10 > set_ftrace_filter -bash: echo: write error: Invalid argument # cat set_ftrace_filter #### all functions enabled #### _spin_trylock_bh:traceon:count=10 _spin_unlock_irq:traceon:count=10 _spin_unlock_bh:traceon:count=10 _spin_lock_irq:traceon:count=10 _spin_unlock:traceon:count=10 _spin_trylock:traceon:count=10 _spin_unlock_irqrestore:traceon:count=10 _spin_lock_irqsave:traceon:count=10 _spin_lock_bh:traceon:count=10 _spin_lock:traceon:count=10 We want to set _spin_*:traceon:10 to set_ftrace_filter, it complains with "Invalid argument", but the operation is successful. This is because ftrace_process_regex() returns the number of functions that matched the pattern. If the number is not 0, this value is returned by ftrace_regex_write() whereas we want to return the number of bytes virtually written. Also the file offset pointer is not updated in this case. If the number of matched functions is lower than the number of bytes written by the user, this results to a reprocessing of the string given by the user with a lower size, leading to a malformed ftrace regex and then a -EINVAL returned. So, this patch fixes it by returning 0 if no error occured. The fix also applies on 2.6.30 Signed-off-by: NXiao Guangrong <xiaoguangrong@cn.fujitsu.com> Reviewed-by: NLi Zefan <lizf@cn.fujitsu.com> Cc: stable@kernel.org Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
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由 Lai Jiangshan 提交于
kernel/trace/ring_buffer.c: In function 'rb_tail_page_update': kernel/trace/ring_buffer.c:849: warning: value computed is not used kernel/trace/ring_buffer.c:850: warning: value computed is not used Add "(void)"s to fix this warning, because we don't need here to handle the fail case of cmpxchg, it's fine if an interrupt already did the job. Changed from V1: Add a comment(which is written by Steven) for it. Signed-off-by: NLai Jiangshan <laijs@cn.fujitsu.com> Acked-by: NSteven Rostedt <rostedt@goodmis.org> Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
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由 Linus Torvalds 提交于
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-sched * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-sched: sched: Fix bug in SCHED_IDLE interaction with group scheduling sched: Fix rt_rq->pushable_tasks initialization in init_rt_rq() sched: Reset sched stats on fork() sched_rt: Fix overload bug on rt group scheduling sched: Documentation/sched-rt-group: Fix style issues & bump version
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由 Linus Torvalds 提交于
Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: timer stats: fix quick check optimization
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix another bug in move of altivec code to vector.S powerpc: Fix booke user_disable_single_step()
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由 Alan Cox 提交于
If a tty in N_TTY mode with echo enabled manages to get itself into a state where - echo characters are pending - FASYNC is enabled - tty_write_wakeup is called from either - a device write path (pty) - an IRQ (serial) then it either deadlocks or explodes taking a mutex in the IRQ path. On the serial side it is almost impossible to reproduce because you have to go from a full serial port to a near empty one with echo characters pending. The pty case happens to have become possible to trigger using emacs and ptys, the pty changes having created a scenario which shows up this bug. The code path is n_tty:process_echoes() (takes mutex) tty_io:tty_put_char() pty:pty_write (or serial paths) tty_wakeup (from pty_write or serial IRQ) n_tty_write_wakeup() process_echoes() *KABOOM* Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jiri Slaby 提交于
Don't forget to drop a tty refererence on fail paths in receive_data(). Signed-off-by: NJiri Slaby <jirislaby@gmail.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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