- 16 11月, 2007 19 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched: sched: reorder SCHED_FEAT_ bits sched: make sched_nr_latency static sched: remove activate_idle_task() sched: fix __set_task_cpu() SMP race sched: fix SCHED_FIFO tasks & FAIR_GROUP_SCHED sched: fix accounting of interrupts during guest execution on s390
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由 Ingo Molnar 提交于
reorder SCHED_FEAT_ bits so that the used ones come first. Makes tuning instructions easier. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Adrian Bunk 提交于
sched_nr_latency can now become static. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Dmitry Adamushko 提交于
cpu_down() code is ok wrt sched_idle_next() placing the 'idle' task not at the beginning of the queue. So get rid of activate_idle_task() and make use of activate_task() instead. It is the same as activate_task(), except for the update_rq_clock(rq) call that is redundant. Code size goes down: text data bss dec hex filename 47853 3934 336 52123 cb9b sched.o.before 47828 3934 336 52098 cb82 sched.o.after Signed-off-by: NDmitry Adamushko <dmitry.adamushko@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Dmitry Adamushko 提交于
Grant Wilson has reported rare SCHED_FAIR_USER crashes on his quad-core system, which crashes can only be explained via runqueue corruption. there is a narrow SMP race in __set_task_cpu(): after ->cpu is set up to a new value, task_rq_lock(p, ...) can be successfuly executed on another CPU. We must ensure that updates of per-task data have been completed by this moment. this bug has been hiding in the Linux scheduler for an eternity (we never had any explicit barrier for task->cpu in set_task_cpu() - so the bug was introduced in 2.5.1), but only became visible via set_task_cfs_rq() being accidentally put after the task->cpu update. It also probably needs a sufficiently out-of-order CPU to trigger. Reported-by: NGrant Wilson <grant.wilson@zen.co.uk> Signed-off-by: NDmitry Adamushko <dmitry.adamushko@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Oleg Nesterov 提交于
Suppose that the SCHED_FIFO task does switch_uid(new_user); Now, p->se.cfs_rq and p->se.parent both point into the old user_struct->tg because sched_move_task() doesn't call set_task_cfs_rq() for !fair_sched_class case. Suppose that old user_struct/task_group is freed/reused, and the task does sched_setscheduler(SCHED_NORMAL); __setscheduler() sets fair_sched_class, but doesn't update ->se.cfs_rq/parent which point to the freed memory. This means that check_preempt_wakeup() doing while (!is_same_group(se, pse)) { se = parent_entity(se); pse = parent_entity(pse); } may OOPS in a similar way if rq->curr or p did something like above. Perhaps we need something like the patch below, note that __setscheduler() can't do set_task_cfs_rq(). Signed-off-by: NOleg Nesterov <oleg@tv-sign.ru> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Christian Borntraeger 提交于
Currently the scheduler checks for PF_VCPU to decide if this timeslice has to be accounted as guest time. On s390 host interrupts are not disabled during guest execution. This causes theses interrupts to be accounted as guest time if CONFIG_VIRT_CPU_ACCOUNTING is set. Solution is to check if an interrupt triggered account_system_time. As the tick is timer interrupt based, we have to subtract hardirq_offset. I tested the patch on s390 with CONFIG_VIRT_CPU_ACCOUNTING and on x86_64. Seems to work. CC: Avi Kivity <avi@qumranet.com> CC: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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git://jdelvare.pck.nerim.net/jdelvare-2.6由 Linus Torvalds 提交于
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c/eeprom: Recognize VGN as a valid Sony Vaio name prefix i2c/eeprom: Hide Sony Vaio serial numbers i2c-pasemi: Fix NACK detection i2c-pasemi: Replace obsolete "driverfs" reference with "sysfs" i2c: Make i2c_check_addr static i2c-dev: Unbound new-style i2c clients aren't busy i2c-dev: "how does it work" comments
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由 Jean Delvare 提交于
Recent (i.e. 2005 and later) Sony Vaio laptops have names beginning with VGN rather than PCG. Update the eeprom driver so that it recognizes these. Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Jean Delvare 提交于
The sysfs interface to DMI data takes care to not make the system serial number and UUID world-readable, presumably due to privacy concerns. For consistency, we should not let the eeprom driver export these same strings to the world on Sony Vaio laptops. Instead, only make them readable by root, as we already do for BIOS passwords. Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Olof Johansson 提交于
Turns out we don't actually check the status to see if there was a device out there to talk to, just if we had a timeout when doing so. Add the proper check, so we don't falsly think there are devices on the bus that are not there, etc. Signed-off-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Robert P. J. Day 提交于
Signed-off-by: NRobert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Jean Delvare 提交于
i2c_check_addr is only used inside i2c-core now, so we can make it static and stop exporting it. Thanks to David Brownell for noticing. Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Jean Delvare 提交于
Let i2c-dev deal properly with new-style i2c clients. Instead of considering them always busy, it needs to check wether a driver is bound to them or not. This is still not completely correct, as the client could become busy later, but the same problem already existed before new-style clients were introduced. We'll want to fix it someday. Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NDavid Brownell <dbrownell@users.sourceforge.net>
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由 David Brownell 提交于
This adds some "how does this work" comments to the i2c-dev driver, plus separators between the three main components: - The parallel list of i2c_adapters ("i2c_dev_list"), each of which gets a "struct i2c_dev" and a /dev/i2c-X character special file. - An i2cdev_driver gets adapter add/remove notifications, which are used to maintain that list of adapters. - Special file operations, which let userspace talk either directly to the adapter (for i2c_msg operations) or through cached addressing info using an anonymous i2c_client (never registered anywhere). Plus there's the usual module load/unload record keeping. After making sense of this code, I think that the anonymous i2c_client is pretty shady. But since it's never registered, using this code with a system set up for "new style" I2C drivers is no more complicated than always using the I2C_SLAVE_FORCE ioctl (instead of I2C_SLAVE). Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Linus Torvalds 提交于
This reverts commit 7fb7ac24. Heikki Orsila reports that it causes a regression: "Doing nc host port < /dev/zero on a sending machine (not skge) to an skge machine that is receiving: nc -l -p port >/dev/null with ~60 MiB/s speed, causes the interface go malfunct. A slow transfer doesn't cause a problem." See http://bugzilla.kernel.org/show_bug.cgi?id=9321 for some more information. There is a workaround (also reported by Heikki): "After some fiddling, I noticed that not changing the register write order on patch: + skge_write32(hw, RB_ADDR(q, RB_END), end); skge_write32(hw, RB_ADDR(q, RB_WP), start); skge_write32(hw, RB_ADDR(q, RB_RP), start); - skge_write32(hw, RB_ADDR(q, RB_END), end); fixes the visible effect.. Possibly not the root cause of the problem, but changing the order back fixes networking here." but that has yet to be ack'ed or tested more widely, so the whole problem-causing commit gets reverted until this is resolved properly. Bisected-and-requested-by: NHeikki Orsila <shdl@zakalwe.fi> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: [AVR32] Export intc_get_pending symbol [AVR32] Add missing bit in PCCR sysreg [AVR32] Fix duplicate clock index in at32ap machine code [AVR32] remove UID16 option [AVR32] Turn off debugging in SMC driver Extend I/O resource for wdt0 for at32ap7000 devices [AVR32] pcmcia ioaddr_t should be 32 bits on AVR32
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由 Nick Piggin 提交于
Previously, it would be possible for prev->next to point to &free_slob_pages, and thus we would try to move a list onto itself, and bad things would happen. It seems a bit hairy to be doing list operations with the list marker as an entry, rather than a head, but... this resolves the following crash: http://bugzilla.kernel.org/show_bug.cgi?id=9379Signed-off-by: NNick Piggin <npiggin@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Acked-by: NMatt Mackall <mpm@selenic.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Roland McGrath 提交于
The original meaning of the old test (p->state > TASK_STOPPED) was "not dead", since it was before TASK_TRACED existed and before the state/exit_state split. It was a wrong correction in commit 14bf01bb to make this test for TASK_TRACED instead. It should have been changed when TASK_TRACED was introducted and again when exit_state was introduced. Signed-off-by: NRoland McGrath <roland@redhat.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Alexey Dobriyan <adobriyan@sw.ru> Cc: Kees Cook <kees@ubuntu.com> Acked-by: NScott James Remnant <scott@ubuntu.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 15 11月, 2007 21 次提交
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由 Haavard Skinnemoen 提交于
Oprofile needs to call intc_get_pending() in order to determine whether a performance counter interrupt is pending. Also, include the header which declares intc_get_pending() and fix the definition to match the prototype. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
The enable bit was missing... Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 ben.nizette@iinet.net.au 提交于
There's a duplicate clock index between USART0 and USART1 which may be causing system crashes when USART0 is used. Change the USART0 index to '3', indicating the clock that is actually used by USART0. Signed-off-by: NBen Nizette <ben@niasdigital.com> Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Adrian Bunk 提交于
avr32 already sees the option from init/Kconfig. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Hans-Christian Egtvedt 提交于
This patch extends the I/O resource to 0xfff000cf which will enable the watchdog driver to access the reset cause (RCAUSE) register. Making it capable of reporting boot status. Signed-off-by: NHans-Christian Egtvedt <hcegtvedt@atmel.com> Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
Define ioaddr_t as u_int on AVR32 just like on ARM and MIPS. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: [CRYPTO] geode: Fix not inplace encryption
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: mlx4_core: Fix thinko in QP destroy (incorrect bitmap_free) RDMA/cxgb3: Set the max_qp_init_rd_atom attribute in query_device IB/ehca: Fix static rate calculation IB/ehca: Return physical link information in query_port() IB/ipath: Fix race with ACK retry timeout list management IB/ipath: Fix memory leak in ipath_resize_cq() if copy_to_user() fails mlx4_core: Fix possible bad free in mlx4_buf_free()
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git://git.kernel.org/pub/scm/linux/kernel/git/sam/x86由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/x86: x86: enable "make ARCH=x86" x86: do not use $(ARCH) when not needed kconfig: use $K64BIT to set 64BIT with all*config targets kconfig: add helper to set config symbol from environment variable kconfig: factor out code in confdata.c x86: move the rest of the menu's to Kconfig x86: move all simple arch settings to Kconfig x86: copy x86_64 specific Kconfig symbols to Kconfig.i386 x86: add X86_64 dependency to x86_64 specific symbols in Kconfig.x86_64 x86: add X86_32 dependency to i386 specific symbols in Kconfig.i386 x86: arch/x86/Kconfig.cpu unification x86: start unification of arch/x86/Kconfig.* x86: unification of cfufreq/Kconfig
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由 Linus Torvalds 提交于
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NET]: rt_check_expire() can take a long time, add a cond_resched() [ISDN] sc: Really, really fix warning [ISDN] sc: Fix sndpkt to have the correct number of arguments [TCP] FRTO: Clear frto_highmark only after process_frto that uses it [NET]: Remove notifier block from chain when register_netdevice_notifier fails [FS_ENET]: Fix module build. [TCP]: Make sure write_queue_from does not begin with NULL ptr [TCP]: Fix size calculation in sk_stream_alloc_pskb [S2IO]: Fixed memory leak when MSI-X vector allocation fails [BONDING]: Fix resource use after free [SYSCTL]: Fix warning for token-ring from sysctl checker [NET] random : secure_tcp_sequence_number should not assume CONFIG_KTIME_SCALAR [IWLWIFI]: Not correctly dealing with hotunplug. [TCP] FRTO: Plug potential LOST-bit leak [TCP] FRTO: Limit snd_cwnd if TCP was application limited [E1000]: Fix schedule while atomic when called from mii-tool. [NETX]: Fix build failure added by 2.6.24 statistics cleanup. [EP93xx_ETH]: Build fix after 2.6.24 NAPI changes. [PKT_SCHED]: Check subqueue status before calling hard_start_xmit
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由 Jesper Nilsson 提交于
Scrap the local __INLINE__ macro, and rename timeval_cmp to fasttime_cmp. Inline macro was completely unnecessary since the macro was defined locally to be inline. timeval_cmp was inaccurately named since it does comparison on struct fasttimer_t and not on struct timeval. Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jesper Nilsson 提交于
Add \n\ at end of lines inside asm statement to avoid warning. No change except adding \n\ to end of line and correcting whitespace has been done. Removes warning about multi-line string literals when compiling arch/cris/arch-v10/lib/memset.c Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jesper Nilsson 提交于
Add \n\ at end of lines inside asm statement to avoid warning. No change except adding \n\ to end of line and correcting whitespace has been done. Removes warning about multi-line string literals when compiling arch/cris/arch-v10/lib/string.c Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jesper Nilsson 提交于
Removes warning when compiling arch/cris/arch-v10/lib/usercopy.c No change except adding \n\ on the end of the lines has been done. Removes warning about multi-line string literals. Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jesper Nilsson 提交于
Declare mac using DECLARE_MAC_BUF for use when calling print_mac(). This fixes compile error where mac was undeclared. Also, remove unused variable i. Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jesper Nilsson 提交于
Include linux/pagemap.h for release_pages and page_cache_release. Fixes compilation error in arch/cris/mm/init.c when CONFIG_SWAP is unset. Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jesper Nilsson 提交于
These are needed due to a cache bug, and can be used to make sure that the DMA descriptors are flushed to memory and can be safely handled by DMA. flush_dma_descr - Flush one DMA descriptor. flush_dma_list - Flush a complete list of DMA descriptors. cris_flush_cache - Flush the complete cache. cris_flush_cache_range - Flush only the specified range Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jesper Nilsson 提交于
Improve and bugfix CRIS v10 fast timers. - irq_handler_t now only takes two arguments. - Keep interrupts disabled as long as we have a reference to the fasttimer list and only enable them while doing the callback. del_fast_timer may be called from other interrupt context. - Fix bug where debug code could return without calling local_irq_restore. - Use jiffies instead of usec (change from struct timeval to fasttime_t). - Don't initialize static variables to zero. - Remove obsolete #ifndef DECLARE_WAITQUEUE code. - fast_timer_init should be __initcall. - Change status/debug variables to unsigned. - Remove CVS log and CVS id. Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jesper Nilsson 提交于
Fix timer interrupt parameters for CRIS v10. - irq_handler_t only takes two arguments, use get_irq_regs to get regs for profiling. - Call update_process_times. - Remove CVS tag. Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jesper Nilsson 提交于
Remove MTD_AMDSTD and MTD_OBSOLETE_CHIPS from defconfig, Kconfig and code, instead we'll use MTD_CFI or MTD_JEDECPROBE. [akpm@linux-foundation.org: codingl-style cleanups] Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <starvik@axis.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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