summaryrefslogtreecommitdiffstats
Commit message (Collapse)AuthorAgeFilesLines
* tracing/markers: make markers select tracepointsFrederic Weisbecker2009-02-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes it happens that KConfig dependencies are not handled like in the following scenario: - config A bool - config B bool depends on A - config C bool select B If one selects C, then it will select B without checking its dependency to A, if A hasn't been selected elsewhere, it will result in a build failure. This is what happens on the following build error: kernel/built-in.o: In function `marker_update_probe_range': (.text+0x52f64): undefined reference to `tracepoint_probe_register_noupdate' kernel/built-in.o: In function `marker_update_probe_range': (.text+0x52f74): undefined reference to `tracepoint_probe_unregister_noupdate' kernel/built-in.o: In function `marker_update_probe_range': (.text+0x52fb9): undefined reference to `tracepoint_probe_unregister_noupdate' kernel/built-in.o: In function `marker_update_probes': marker.c:(.text+0x530ba): undefined reference to `tracepoint_probe_update_all' CONFIG_KVM_TRACE will select CONFIG_MARKER, but the latter depends on CONFIG_TRACEPOINTS which will not be selected. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branches 'tracing/function-graph-tracer' and 'linus' into tracing/coreIngo Molnar2009-02-2041-127/+119
|\
| * Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2009-02-1928-88/+77
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5405/1: ep93xx: remove unused gesbc9312.h header [ARM] 5404/1: Fix condition in arm_elf_read_implies_exec() to set READ_IMPLIES_EXEC [ARM] omap: fix clock reparenting in omap2_clk_set_parent() [ARM] 5403/1: pxa25x_ep_fifo_flush() *ep->reg_udccs always set to 0 [ARM] 5402/1: fix a case of wrap-around in sanity_check_meminfo() [ARM] 5401/1: Orion: fix edge triggered GPIO interrupt support [ARM] 5400/1: Add support for inverted rdy_busy pin for Atmel nand device controller [ARM] 5391/1: AT91: Enable GPIO clocks earlier [ARM] 5390/1: AT91: Watchdog fixes [ARM] 5398/1: Add Wan ZongShun to MAINTAINERS for W90P910 [ARM] omap: fix _omap2_clksel_get_src_field() [ARM] omap: fix omap2_divisor_to_clksel() error return value
| | * [ARM] 5405/1: ep93xx: remove unused gesbc9312.h headerHartley Sweeten2009-02-192-4/+0
| | | | | | | | | | | | | | | | | | | | | Remove the gesbc9312.h header since it is unused. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] 5404/1: Fix condition in arm_elf_read_implies_exec() to set ↵Makito SHIOKAWA2009-02-191-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | READ_IMPLIES_EXEC READ_IMPLIES_EXEC must be set when: o binary _is_ an executable stack (i.e. not EXSTACK_DISABLE_X) o processor architecture is _under_ ARMv6 (XN bit is supported from ARMv6) Signed-off-by: Makito SHIOKAWA <lkhmkt@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] omap: fix clock reparenting in omap2_clk_set_parent()Russell King2009-02-191-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | When changing the parent of a clock, it is necessary to keep the clock use counts balanced otherwise things the parent state will get corrupted. Since we already disable and re-enable the clock, we might as well use the recursive versions instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] 5403/1: pxa25x_ep_fifo_flush() *ep->reg_udccs always set to 0Roel Kluin2009-02-191-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | *ep->reg_udccs is always set to 0. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] 5402/1: fix a case of wrap-around in sanity_check_meminfo()Nicolas Pitre2009-02-191-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the non highmem case, if two memory banks of 1GB each are provided, the second bank would evade suppression since its virtual base would be 0. Fix this by disallowing any memory bank which virtual base address is found to be lower than PAGE_OFFSET. Reported-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] 5401/1: Orion: fix edge triggered GPIO interrupt supportNicolas Pitre2009-02-175-53/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GPIO interrupts can be configured as either level triggered or edge triggered, with a default of level triggered. When an edge triggered interrupt is requested, the gpio_irq_set_type method is called which currently switches the given IRQ descriptor between two struct irq_chip instances: orion_gpio_irq_level_chip and orion_gpio_irq_edge_chip. This happens via __setup_irq() which also calls irq_chip_set_defaults() to assign default methods to uninitialized ones. The problem is that irq_chip_set_defaults() is called before the irq_chip reference is switched, leaving the new irq_chip (orion_gpio_irq_edge_chip in this case) with uninitialized methods such as chip->startup() causing a kernel oops. Many solutions are possible, such as making irq_chip_set_defaults() global and calling it from gpio_irq_set_type(), or calling __irq_set_trigger() before irq_chip_set_defaults() in __setup_irq(). But those require modifications to the generic IRQ code which might have adverse effect on other architectures, and that would still be a fragile arrangement. Manually copying the missing methods from within gpio_irq_set_type() would be really ugly and it would break again the day new methods with automatic defaults are added. A better solution is to have a single irq_chip instance which can deal with both edge and level triggered interrupts. It is also a good idea to switch the IRQ handler instead, as the edge IRQ handler allows for one edge IRQ event to be queued as the IRQ is actually masked only when that second IRQ is received, at which point the hardware can queue an additional IRQ event, making edge triggered interrupts a bit more reliable. Tested-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] 5400/1: Add support for inverted rdy_busy pin for Atmel nand device ↵Gregory CLEMENT2009-02-163-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | controller Add support for inverted rdy_busy pin for Atmel nand device controller It will fix building error on NeoCore926 board. Acked-by: Andrew Victor <linux@maxim.org.za> Acked-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Gregory CLEMENT <gclement@adeneo.adetelgroup.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] 5391/1: AT91: Enable GPIO clocks earlierAndrew Victor2009-02-141-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | Enable the GPIO clocks earlier in the initialization sequence. This allow the board-setup code to read and set GPIO pins. Signed-off-by: Marc Pignat <marc.pignat@hevs.ch> Signed-off-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] 5390/1: AT91: Watchdog fixesAndrew Victor2009-02-1412-12/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recently merged AT91SAM9 watchdog driver uses the AT91SAM9X_WATCHDOG config variable, whereas the original version of the driver (and the platform support code) used AT91SAM9_WATCHDOG. This causes the watchdog platform_device to never be registered, and therefore the driver not to be initialized. This patch: - updates the platform support code to use AT91SAM9X_WATCHDOG. - includes <linux/io.h> to fix compile error (same fix as was applied to at91rm9200_wdt.c) - fixes comment regarding watchdog clock-rates in at91rm9200. Signed-off-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] 5398/1: Add Wan ZongShun to MAINTAINERS for W90P910wanzongshun2009-02-141-0/+7
| | | | | | | | | | | | | | | | | | | | | Add Wan ZongShun to MAINTAINERS for W90P910. Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] omap: fix _omap2_clksel_get_src_field()Russell King2009-02-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | _omap2_clksel_get_src_field() was returning the first entry which was either the default _or_ applicable to the SoC. This is wrong - we should be returning the first default which is applicable to the SoC. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] omap: fix omap2_divisor_to_clksel() error return valueRussell King2009-02-141-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | The error checks for omap2_divisor_to_clksel() and comment disagree with the actual value returned on error. Fix this to return the correct error value. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-02-193-6/+4
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, mce: fix ifdef for 64bit thermal apic vector clear on shutdown x86, mce: use force_sig_info to kill process in machine check x86, mce: reinitialize per cpu features on resume x86, rcu: fix strange load average and ksoftirqd behavior
| | * | x86, mce: fix ifdef for 64bit thermal apic vector clear on shutdownAndi Kleen2009-02-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Bugfix The ifdef for the apic clear on shutdown for the 64bit intel thermal vector was incorrect and never triggered. Fix that. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| | * | x86, mce: use force_sig_info to kill process in machine checkAndi Kleen2009-02-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: bug fix (with tolerant == 3) do_exit cannot be called directly from the exception handler because it can sleep and the exception handler runs on the exception stack. Use force_sig() instead. Based on a earlier patch by Ying Huang who debugged the problem. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| | * | x86, mce: reinitialize per cpu features on resumeAndi Kleen2009-02-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Bug fix This fixes a long standing bug in the machine check code. On resume the boot CPU wouldn't get its vendor specific state like thermal handling reinitialized. This means the boot cpu wouldn't ever get any thermal events reported again. Call the respective initialization functions on resume v2: Remove ancient init because they don't have a resume device anyways. Pointed out by Thomas Gleixner. v3: Now fix the Subject too to reflect v2 change Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| | * | x86, rcu: fix strange load average and ksoftirqd behaviorPaul E. McKenney2009-02-171-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Damien Wyart reported high ksoftirqd CPU usage (20%) on an otherwise idle system. The function-graph trace Damien provided: > 799.521187 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.521371 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.521555 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.521738 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.521934 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.522068 | 1) ksoftir-2324 | | rcu_check_callbacks() { > 799.522208 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.522392 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.522575 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.522759 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.522956 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.523074 | 1) ksoftir-2324 | | rcu_check_callbacks() { > 799.523214 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.523397 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.523579 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.523762 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.523960 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.524079 | 1) ksoftir-2324 | | rcu_check_callbacks() { > 799.524220 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.524403 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.524587 | 1) <idle>-0 | | rcu_check_callbacks() { > 799.524770 | 1) <idle>-0 | | rcu_check_callbacks() { > [ . . . ] Shows rcu_check_callbacks() being invoked way too often. It should be called once per jiffy, and here it is called no less than 22 times in about 3.5 milliseconds, meaning one call every 160 microseconds or so. Why do we need to call rcu_pending() and rcu_check_callbacks() from the idle loop of 32-bit x86, especially given that no other architecture does this? The following patch removes the call to rcu_pending() and rcu_check_callbacks() from the x86 32-bit idle loop in order to reduce the softirq load on idle systems. Reported-by: Damien Wyart <damien.wyart@free.fr> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds2009-02-193-1/+26
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: limit the number of loops the ring buffer self test can make tracing: have function trace select kallsyms tracing: disable tracing while testing ring buffer tracing/function-graph-tracer: trace the idle tasks
| * \ \ \ Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds2009-02-195-4/+19
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] fix "mem=" handling in case of standby memory [S390] Fix timeval regression on s390 [S390] sclp: handle empty event buffers
| | * | | | [S390] fix "mem=" handling in case of standby memoryHeiko Carstens2009-02-193-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Standby memory detected with the sclp interface gets always registered with add_memory calls without considering the limitationt that the "mem=" kernel paramater implies. So fix this and only register standby memory that is below the specified limit. This fixes zfcpdump since it uses "mem=32M". In case there is appr. 2GB standby memory present all of usable memory would be used for the struct pages needed for standby memory. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| | * | | | [S390] Fix timeval regression on s390Christian Borntraeger2009-02-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit aa5e97ce4bbc9d5daeec16b1d15bb3f6b7b4f4d4 [PATCH] improve precision of process accounting. Introduced a timing regression: -bash-3.2# time ls real 0m0.006s user 0m1.754s sys 0m1.094s The problem was introduced by an error in cputime_to_timeval. Cputime is now 1/4096 microsecond, therefore, we have to divide the remainder with 4096 to get the microseconds. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| | * | | | [S390] sclp: handle empty event buffersPeter Oberparleiter2009-02-191-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Handle a malformed hardware response which some versions of the Support Element (SE) may present during SE restart and which otherwise would result in an endless loop in function sclp_dispatch_evbufs. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | Merge branch 'for-linus' of ↵Linus Torvalds2009-02-195-29/+19
| |\ \ \ \ \ | | |/ / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: sound: virtuoso: revert "do not overwrite EEPROM on Xonar D2/D2X" ALSA: jack - Use card->shortname for input name ALSA: usb-audio - Workaround for misdetected sample rate with CM6207 ALSA: usb-audio - Fix non-continuous rate detection sound: usb-audio: fix uninitialized variable with M-Audio MIDI interfaces Revert "Sound: hda - Restore PCI configuration space with interrupts off"
| | * | | | Merge branch 'fix/usb-audio' into for-linusTakashi Iwai2009-02-192-9/+12
| | |\ \ \ \
| | | * | | | ALSA: usb-audio - Workaround for misdetected sample rate with CM6207Joris van Rantwijk2009-02-161-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CM6207 incorrectly advertises its 96 kHz playback setting as 48 kHz in its USB device descriptor. This patch extends an existing workaround in usbaudio.c to also cover the CM6207. This resolves issue 0004249 in the ALSA bug tracker. Signed-off-by: Joris van Rantwijk <jorispubl@xs4all.nl> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| | | * | | | ALSA: usb-audio - Fix non-continuous rate detectionTakashi Iwai2009-02-161-8/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The detection of non-continuous rates (given via rate tables) isn't processed properly (e.g. for type II). This patch fixes and simplifies the detection code. Tested-by: Joris van Rantwijk <jorispubl@xs4all.nl> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| | | * | | | sound: usb-audio: fix uninitialized variable with M-Audio MIDI interfacesClemens Ladisch2009-02-161-0/+1
| | | | |_|/ | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the snd_usbmidi_create_endpoints_midiman() function, which forgot to set the out_interval member of the endpoint info structure for Midiman/ M-Audio devices. Since kernel 2.6.24, any non-zero value makes the driver use interrupt transfers instead of bulk transfers. With EHCI controllers, these random interval values result in unbearably large latencies for output MIDI transfers. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Reported-by: David <devurandom@foobox.com> Tested-by: David <devurandom@foobox.com> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| | * | | | Merge branch 'fix/misc' into for-linusTakashi Iwai2009-02-192-14/+5
| | |\ \ \ \
| | | * | | | sound: virtuoso: revert "do not overwrite EEPROM on Xonar D2/D2X"Clemens Ladisch2009-02-191-13/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 7e86c0e6850504ec9516b953f316a47277825e33 ("do not overwrite EEPROM on Xonar D2/D2X") because it did not actually help with the problem. More user reports show that the overwriting of the EEPROM is not triggered by using this driver but by installing Linux, and that the installation of any other operating system (even one without any CMI8788 driver) has the same effect. In other words, the presence of this driver does not have any effect on the occurrence of the error. (So far, the available evidence seems to point to a BIOS bug.) Furthermore, it turns out that the EEPROM chip is protected against stray write commands by the command format and by requiring a separate write-enable command, so the error scenario in the previous commit (that SPI writes can be misinterpreted as an EEPROM write command) is not even theoretically possible. The mixer control that was removed as a consequence of the previous commit can only be partially emulated in userspace, which also means it cannot be seen be the in-kernel OSS API emulation, so it is better to revert that change. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| | | * | | | ALSA: jack - Use card->shortname for input nameTakashi Iwai2009-02-181-1/+1
| | | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the jack layer refers to card->longname as a part of its input device name string. However, longname is often really long and way too ugly as an identifier, such as, "HDA Intel at 0xf8400000 irq 21". This patch changes the code to use card->shortname instead. The shortname string contains usually the h/w vendor and product names but without messy I/O port or IRQ numbers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
| | * | | | Merge branch 'fix/hda' into for-linusTakashi Iwai2009-02-191-6/+2
| | |\ \ \ \ | | | |/ / / | | |/| | |
| | | * | | Revert "Sound: hda - Restore PCI configuration space with interrupts off"Takashi Iwai2009-02-161-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 32e176c14d7a425b681ef003c9061001ddb7fc7b. That commit caused a regression with suspend on Thinkpad SL300. Reference: kernel bug#12711 http://bugzilla.kernel.org/show_bug.cgi?id=12711 Tested-by: Alexandre Rostovtsev <tetromino@gmail.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | | | | | tracing/function-graph-tracer: fix mergeIngo Molnar2009-02-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge artifact: pid got changed to ent->pid meanwhile. Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | | Documentation/ftrace.txt: updateIngo Molnar2009-02-191-426/+530
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - fix typos/grammos and clarify the text - prettify the document some more Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | | tracing/function-graph-tracer: provide documentation for the function graph ↵Frederic Weisbecker2009-02-191-0/+226
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tracer Update documentation for the function graph tracer. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | | tracing/function-graph-tracer: fix traces weirdness while absolute time printingFrederic Weisbecker2009-02-191-21/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: trace output cleanup/reordering When an interrupt occurs and and the abstime option is selected: echo funcgraph-abstime > /debug/tracing/trace_options then we observe broken traces: 30581.025422 | 0) Xorg-4291 | 0.503 us | idle_cpu(); 30581.025424 | 0) Xorg-4291 | 2.576 us | } 30581.025424 | 0) Xorg-4291 | + 75.771 us | } 0) Xorg-4291 | <========== | 30581.025425 | 0) Xorg-4291 | | schedule() { 30581.025426 | 0) Xorg-4291 | | __schedule() { 30581.025426 | 0) Xorg-4291 | 0.705 us | _spin_lock_irq(); With this patch, the interrupts output better adapts to absolute time printing: 414.856543 | 1) Xorg-4279 | 8.816 us | } 414.856544 | 1) Xorg-4279 | 0.525 us | rcu_irq_exit(); 414.856545 | 1) Xorg-4279 | 0.526 us | idle_cpu(); 414.856546 | 1) Xorg-4279 | + 12.157 us | } 414.856549 | 1) Xorg-4279 | ! 104.114 us | } 414.856549 | 1) Xorg-4279 | <========== | 414.856549 | 1) Xorg-4279 | ! 107.944 us | } 414.856550 | 1) Xorg-4279 | ! 137.010 us | } 414.856551 | 1) Xorg-4279 | 0.624 us | _read_unlock(); 414.856552 | 1) Xorg-4279 | ! 140.930 us | } 414.856552 | 1) Xorg-4279 | ! 166.159 us | } Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | | Merge branch 'mainline/function-graph' of ↵Ingo Molnar2009-02-195-99/+101
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/function-graph-tracer
| * | | | | | tracing/function-graph-tracer: make arch generic push pop functionsSteven Rostedt2009-02-185-99/+101
| | |/ / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is nothing really arch specific of the push and pop functions used by the function graph tracer. This patch moves them to generic code. Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Steven Rostedt <srostedt@redhat.com>
| | | | | |
| \ \ \ \ \
*-. \ \ \ \ \ Merge branches 'tracing/blktrace', 'tracing/ftrace' and 'tracing/urgent' ↵Ingo Molnar2009-02-1913-107/+183
|\ \ \ \ \ \ \ | | | |_|_|/ / | | |/| | | | | | | | | | | into tracing/core
| | * | | | | Merge branch 'tip/tracing/urgent' of ↵Ingo Molnar2009-02-192-0/+21
| | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/urgent
| | | * | | | | tracing: limit the number of loops the ring buffer self test can makeSteven Rostedt2009-02-181-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: prevent deadlock if ring buffer gets corrupted This patch adds a paranoid check to make sure the ring buffer consumer does not go into an infinite loop. Since the ring buffer has been set to read only, the consumer should not loop for more than the ring buffer size. A check is added to make sure the consumer does not loop more than the ring buffer size. Signed-off-by: Steven Rostedt <srostedt@redhat.com>
| | | * | | | | tracing: have function trace select kallsymsSteven Rostedt2009-02-181-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix output of function tracer to be useful The function tracer is pretty useless if KALLSYMS is not configured. Unless you are good at reading hex values, the function tracer should select the KALLSYMS configuration. Also, the dynamic function tracer will fail its self test if KALLSYMS is not selected. Signed-off-by: Steven Rostedt <srostedt@redhat.com>
| | | * | | | | tracing: disable tracing while testing ring bufferSteven Rostedt2009-02-181-0/+9
| | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix to prevent hard lockup on self tests If one of the tracers are broken and is constantly filling the ring buffer while the test of the ring buffer is running, it will hang the box. The reason is that the test is a consumer that will not stop till the ring buffer is empty. But if the tracer is broken and is constantly producing input to the buffer, this test will never end. The result is a lockup of the box. This happened when KALLSYMS was not defined and the dynamic ftrace test constantly filled the ring buffer, because the filter failed and all functions were being traced. Something was being called that constantly filled the buffer. Signed-off-by: Steven Rostedt <srostedt@redhat.com>
| * | | | | | tracing/core: remove unused parameter in tracing_fill_pipe_page()Frederic Weisbecker2009-02-181-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup The struct page *pages parameter is unused. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | | tracing/core: use appropriate waiting on trace_pipeFrederic Weisbecker2009-02-186-24/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: api and pipe waiting change Currently, the waiting used in tracing_read_pipe() is done through a 100 msecs schedule_timeout() loop which periodically check if there are traces on the buffer. This can cause small latencies for programs which are reading the incoming events. This patch makes the reader waiting for the trace_wait waitqueue except for few tracers such as the sched and functions tracers which might be already hold the runqueue lock while waking up the reader. This is performed through a new callback wait_pipe() on struct tracer. If none is implemented on a specific tracer, the default waiting for trace_wait queue is attached. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | | Merge branch 'tip/tracing/ftrace' of ↵Ingo Molnar2009-02-1810-80/+93
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/ftrace
| | * | | | | | ftrace: show unlimited when traceon or traceoff has no counterSteven Rostedt2009-02-171-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: clean up The traceon and traceoff function probes are confusing to developers to what happens when a counter is not specified. This should help clear things up. # echo "*:traceoff" > set_ftrace_filter # cat /debug/tracing/set_ftrace_filter #### all functions enabled #### do_fork:traceoff:unlimited Signed-off-by: Steven Rostedt <srostedt@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-07 05:46:36 +0000