- 06 5月, 2009 5 次提交
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由 Peter Zijlstra 提交于
Redirect the output to the parent counter and put in some sanity checks. [ Impact: new perfcounter feature - inherited sampling counters ] Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> LKML-Reference: <20090505155437.331556171@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Use -1 instead of 0 as unlocked, since 0 is a valid cpu number. ( This is not an issue right now but will be once we allow multiple counters to output to the same mmap area. ) [ Impact: prepare code for multi-counter profile output ] Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> LKML-Reference: <20090505155437.232686598@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Provide a threshold to relax the mlock accounting, increasing usability. Each counter gets perf_counter_mlock_kb for free. [ Impact: allow more mmap buffering ] Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> LKML-Reference: <20090505155437.112113632@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Provide a way to reset an existing counter - this eases PAPI libraries around perfcounters. Similar to read() it doesn't collapse pending child counters. [ Impact: new perfcounter fd ioctl method to reset counters ] Suggested-by: NCorey Ashford <cjashfor@linux.vnet.ibm.com> Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <20090505155437.022272933@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Keep data_head up-to-date irrespective of notifications. This fixes the case where you disable a counter and don't get a notification for the last few pending events, and it also allows polling usage. [ Impact: increase precision of perfcounter mmap-ed fields ] Suggested-by: NCorey Ashford <cjashfor@linux.vnet.ibm.com> Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <20090505155436.925084300@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 05 5月, 2009 5 次提交
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由 Ingo Molnar 提交于
Fixed-purpose counters stopped working in a simple 'perf stat ls' run: <not counted> cache references <not counted> cache misses Due to: ef7b3e09: perf_counter, x86: remove vendor check in fixed_mode_idx() Which made x86_pmu.num_counters_fixed matter: if it's nonzero, the fixed-purpose counters are utilized. But on v2 perfmon this field is not set (despite there being fixed-purpose PMCs). So add a quirk to set the number of fixed-purpose counters to at least three. [ Impact: add quirk for three fixed-purpose counters on certain Intel CPUs ] Cc: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-28-git-send-email-robert.richter@amd.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Now percpu counters can be initialized very early. But the init sequence uses mutex_lock(). Fortunately, perf_resource_mutex should be a spinlock anyway, so convert it. [ Impact: fix crash due to early init mutex use ] LKML-Reference: <new-submission> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
percpu scheduling for perfcounters wants to take the context lock, but that lock first needs to be initialized. Currently it is an early_initcall() - but that is too late, the task tick runs much sooner than that. Call it explicitly from the scheduler init sequence instead. [ Impact: fix access-before-init crash ] LKML-Reference: <new-submission> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Invert the atomic_inc_not_zero() test so that we will indeed detect the first activation. Also rename the global num_counters, since its easy to confuse with x86_pmu.num_counters. [ Impact: fix non-working perfcounters on AMD CPUs, cleanup ] Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241455664.7620.4938.camel@twins> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
This used to be unstable when we had the rq->lock dependencies, but now that they are that of the past we can turn on percpu counter RR too. [ Impact: handle counter over-commit for per-CPU counters too ] LKML-Reference: <new-submission> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 03 5月, 2009 1 次提交
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由 Mike Galbraith 提交于
ctype.h crawled out of the bit bucket :) Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 02 5月, 2009 4 次提交
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由 Thomas Gleixner 提交于
Avoid further confusion during development Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Neither process_options nor execvp take an const **char as argument. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
No change, move of duplicated stuff only. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 01 5月, 2009 10 次提交
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由 Thomas Gleixner 提交于
These files are generated during the build process. No need to have them in the git repository. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Ingo Molnar 提交于
Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Update the documentation to reflect the current state of affairs [ Impact: documentation update ] Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> LKML-Reference: <20090501102533.296727903@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Avoid perf-report barfing on 0-length data files. [ Impact: fix perf-report SIGBUS ] Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> LKML-Reference: <20090501102533.196245693@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
When we don't have any perf-counters active, don't act like we know what the NMI is for. [ Impact: fix hard hang with nmi_watchdog=2 ] Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> LKML-Reference: <20090501102533.109867793@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
When two (or more) contexts output to the same buffer, it is possible to observe half written output. Suppose we have CPU0 doing perf_counter_mmap(), CPU1 doing perf_counter_overflow(). If CPU1 does a wakeup and exposes head to user-space, then CPU2 can observe the data CPU0 is still writing. [ Impact: fix occasionally corrupted profiling records ] Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> LKML-Reference: <20090501102533.007821627@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Thomas Gleixner 提交于
This is necessary to avoid the conflict of syscall numbers. Conflicts: arch/x86/ia32/ia32entry.S arch/x86/include/asm/unistd_32.h arch/x86/include/asm/unistd_64.h Fixes up the borked syscall numbers of perfcounters versus preadv/pwritev as well. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Make the new sys_rt_tgsigqueueinfo available for x86. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
sys_kill has the per thread counterpart sys_tgkill. sigqueueinfo is missing a thread directed counterpart. Such an interface is important for migrating applications from other OSes which have the per thread delivery implemented. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Reviewed-by: NOleg Nesterov <oleg@redhat.com> Acked-by: NRoland McGrath <roland@redhat.com> Acked-by: NUlrich Drepper <drepper@redhat.com>
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由 Thomas Gleixner 提交于
Split out the code from do_tkill to make it reusable by the follow up patch which implements sys_rt_tgsigqueueinfo Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Reviewed-by: NOleg Nesterov <oleg@redhat.com>
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- 30 4月, 2009 15 次提交
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由 Ingo Molnar 提交于
Bail out early if a record has zero size - we have no chance to make reliable progress in that case. Print out the offset where this happens, and print the number of bytes we missed out on. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Turn on scaling display by default - this is less confusing. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Build it explicitly until it's a proper builtin command. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Paul Mackerras 提交于
This adds my name to the list of copyright holders on the core perf_counter.c, since I have contributed a significant amount of the code in there. Signed-off-by: NPaul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> LKML-Reference: <18936.59200.888049.746658@cargo.ozlabs.ibm.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Linus Torvalds 提交于
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git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6: eCryptfs: Fix min function comparison warning ecryptfs: fix printk format warning
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6由 Linus Torvalds 提交于
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: V4L/DVB (11652): au0828: fix kernel oops regression on USB disconnect. V4L/DVB (11626): cx23885: Two fixes for DViCO FusionHDTV DVB-T Dual Express V4L/DVB (11612): mx3_camera: Fix compilation with CONFIG_PM V4L/DVB (11570): patch: s2255drv: fix race condition on set mode V4L/DVB (11568): cx18: Fix the handling of i2c bus registration error V4L/DVB (11561a): move media after i2c V4L/DVB (11516): drivers/media/video/saa5246a.c: fix use-after-free V4L/DVB (11515): drivers/media/video/saa5249.c: fix use-after-free and leak V4L/DVB (11494a): cx231xx Kconfig fixes V4L/DVB (11494): cx18: Send correct input routing value to external audio multiplexers
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由 Robert Richter 提交于
Standardize on explicitly mentioning '_mask' in fields that are not plain flags but masks. This avoids typos like: if (cpuc->used) (which could easily slip through review unnoticed), while if a typo looks like this: if (cpuc->used_mask) it might get noticed during review. [ Impact: cleanup ] Signed-off-by: NRobert Richter <robert.richter@amd.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1241016956-24648-1-git-send-email-robert.richter@amd.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Devin Heitmueller 提交于
A regression was introduced in hg changeset 33810c734a0d, which resulted in a kernel panic whenever the device was disconnected from USB. The call to 4l2_device_register() was overwriting the pointer for usb_set_intfdata(), so when au0828_usb_disconnect() was called, the usb_get_intfdata() returned a pointer to the v4l2_device instead of the au0828_dev structure. Signed-off-by: NDevin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Christopher Pascoe 提交于
Two fixes for DViCO FusionHDTV DVB-T Dual Express: * Reset correct tuner when reinitializing xc3028. * Disable the I2C gate control to avoid locking up the I2C bus. Tested-by: NJohn Knops <jknops@australiaonline.net.au> Reviewed-by: NSteven Toth <stoth@linuxtv.org> Signed-off-by: NChristopher Pascoe <linuxdvb@itee.uq.edu.au> Signed-off-by: NDevin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Sascha Hauer 提交于
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de> Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Dean Anderson 提交于
set_modeready flag must be set before command sent to USB in s2255_write_config. Signed-off-by: NDean Anderson <dean@sensoray.com> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Jean Delvare 提交于
* Return actual error values as returned by the i2c subsystem, rather than 0 or 1. * If the registration of the second bus fails, unregister the first one before exiting, otherwise we are leaking resources. Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NAndy Walls <awalls@radix.net> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Guennadi Liakhovetski 提交于
Currently drivers/media drivers are linked very early - directly after base, block, misc, and mfd and before ata, scsi, ide, input, firewire, usb, and i2c. This breaks static build of video4linux drivers, that use generic CPU i2c adapter drivers and the v4l2-subdev subsystem, because during video4linux probing the v4l2-subdev core requires a struct i2c_adapter context, which cannot be satisfied before the i2c subsystem is initialised. Moving drivers/media after drivers/i2c fixes this problem. The best way to trigger action is by submitting a patch:-) So, let's see what comes out of it - on the one hand I don't see any reason why media has to be linked this early, and nobody was able to give me one yesterday as this problem has been discussed on linux-media, OTOH, maybe indeed it would be better to move i2c the whole way up above media, but that'd be much bigger of a change, I think. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.htmlSigned-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: NJean Delvare <khali@linux-fr.org> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Dan Carpenter 提交于
I lowered the kfree(t) down a couple lines and removed the superflous "t->vdev = NULL;" Signed-off-by: NDan Carpenter <error27@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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