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* Linux 2.6.24-rc3v2.6.24-rc3Linus Torvalds2007-11-161-1/+1
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* Merge branch 'for-linus' of ↵Linus Torvalds2007-11-161-1/+1
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6: SELinux: return EOPNOTSUPP not ENOTSUPP
| * SELinux: return EOPNOTSUPP not ENOTSUPPEric Paris2007-11-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | ENOTSUPP is not a valid error code in the kernel (it is defined in some NFS internal error codes and has been improperly used other places). In the !CONFIG_SECURITY_SELINUX case though it is possible that we could return this from selinux_audit_rule_init(). This patch just returns the userspace valid EOPNOTSUPP. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
* | Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2007-11-162-8/+30
|\ \ | | | | | | | | | | | | | | | * 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 4638/1: pxa: use PXA3xx specific macros to define clks [ARM] remove useless setting of VM_RESERVED
| * | [ARM] 4638/1: pxa: use PXA3xx specific macros to define clkseric miao2007-11-161-7/+30
| | | | | | | | | | | | | | | | | | | | | | | | PXA3xx uses its own clk_pxa3xx_cken_ops, modify the code to use the PXA3xx specific macros to define its clocks Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] remove useless setting of VM_RESERVEDRussell King2007-11-111-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | remap_pfn_range() takes care of setting the appropriate VM_* flags itself; there's no need for callers of remap_pfn_range() to set VM_RESERVED before it is called. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds2007-11-163-144/+119
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Fix up whitespace in conservative governor. [CPUFREQ] Make cpufreq_conservative handle out-of-sync events properly [CPUFREQ] architectural pstate driver for powernow-k8
| * | [CPUFREQ] Fix up whitespace in conservative governor.Dave Jones2007-10-221-61/+60
| | | | | | | | | | | | Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Make cpufreq_conservative handle out-of-sync events properlyElias Oltmanns2007-10-221-2/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make cpufreq_conservative handle out-of-sync events properly Currently, the cpufreq_conservative governor doesn't get notified when the actual frequency the cpu is running at differs from what cpufreq thought it was. As a result the cpu may stay at the maximum frequency after a s2ram / resume cycle even though the system is idle. Signed-off-by: Elias Oltmanns <eo@nebensachen.de> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] architectural pstate driver for powernow-k8Mark Langsdorf2007-10-222-81/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch should apply cleanly to the 2.6.23-git7 kernel.  It changes the powernow-k8 driver code that deals with 3rd generation Opteron, Phenom, and later processors to match the architectural pstate driver described in the AMD64 Architecture Programmer's Manual Volume 2 Chapter 18.  The initial implementation of the hardware pstate driver for PowerNow! used some processor-version specific features, and would not be maintainable in the long term as the processor features changed. This architectural driver should work on all future AMD processors.   Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | dirty page balancing: Get rid of broken unmapped_ratio logicLinus Torvalds2007-11-151-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This code harks back to the days when we didn't count dirty mapped pages, which led us to try to balance the number of dirty unmapped pages by how much unmapped memory there was in the system. That makes no sense any more, since now the dirty counts include the mapped pages. Not to mention that the math doesn't work with HIGHMEM machines anyway, and causes the unmapped_ratio to potentially turn negative (which we do catch thanks to clamping it at a minimum value, but I mention that as an indication of how broken the code is). The code also was written at a time when the default dirty ratio was much larger, and the unmapped_ratio logic effectively capped that large dirty ratio a bit. Again, we've since lowered the dirty ratio rather aggressively, further lessening the point of that code. Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge branch 'master' of ↵Linus Torvalds2007-11-1518-112/+224
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NETFILTER]: Fix NULL pointer dereference in nf_nat_move_storage() [SUNHME]: VLAN support for sunhme [CHELSIO]: Fix skb->dev setting. [NETFILTER]: fix compat_nf_sockopt typo [INET]: Fix potential kfree on vmalloc-ed area of request_sock_queue [VIA_VELOCITY]: Don't oops on MTU change. iwl4965: fix not correctly dealing with hotunplug rt2x00: Fix chipset revision validation iwl3945: place CCK rates in front of OFDM for supported rates mac80211: Fix queuing of scan containing a SSID
| * | | [NETFILTER]: Fix NULL pointer dereference in nf_nat_move_storage()Evgeniy Polyakov2007-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reported by Chuck Ebbert as: https://bugzilla.redhat.com/show_bug.cgi?id=259501#c14 This routine is called each time hash should be replaced, nf_conn has extension list which contains pointers to connection tracking users (like nat, which is right now the only such user), so when replace takes place it should copy own extensions. Loop above checks for own extension, but tries to move higer-layer one, which can lead to above oops. Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [SUNHME]: VLAN support for sunhmeChris Poon2007-11-151-6/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables VLAN support on sunhme by increasing BMAC_TXMAX/BMAC_RXMAX and allocating extra space via skb_put for the VLAN header. Signed-off-by: Chris Poon <dev-null@telus.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [CHELSIO]: Fix skb->dev setting.Divy Le Ray2007-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | eth_type_trans() now sets skb->dev. Access skb->def after it gets set. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [NETFILTER]: fix compat_nf_sockopt typoPatrick McHardy2007-11-151-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It should pass opt to the ->get/->set functions, not ops. Tested-by: Luca Tettamanti <kronos.it@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [INET]: Fix potential kfree on vmalloc-ed area of request_sock_queuePavel Emelyanov2007-11-152-17/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The request_sock_queue's listen_opt is either vmalloc-ed or kmalloc-ed depending on the number of table entries. Thus it is expected to be handled properly on free, which is done in the reqsk_queue_destroy(). However the error path in inet_csk_listen_start() calls the lite version of reqsk_queue_destroy, called __reqsk_queue_destroy, which calls the kfree unconditionally. Fix this and move the __reqsk_queue_destroy into a .c file as it looks too big to be inline. As David also noticed, this is an error recovery path only, so no locking is required and the lopt is known to be not NULL. reqsk_queue_yank_listen_sk is also now only used in net/core/request_sock.c so we should move it there too. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [VIA_VELOCITY]: Don't oops on MTU change.Stephen Hemminger2007-11-141-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simple mtu change when device is down. Fix http://bugzilla.kernel.org/show_bug.cgi?id=9382. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | Merge branch 'fixes-davem' of ↵David S. Miller2007-11-1411-84/+167
| |\ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| | * | | iwl4965: fix not correctly dealing with hotunplugOliver Neukum2007-11-141-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The interrupt handler returns IRQ_NONE if it detects that the device is gone. That's incorrect because the device may have raised the interrupt. Not acknowledging it may trigger the spurious interrupt detection and kill drivers sharing the interrupt line. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | rt2x00: Fix chipset revision validationIvo van Doorn2007-11-144-8/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The validation of the chipset revision was broken since for rt2500usb and rt73usb different registers should be read. When rt2500usb was loaded for a rt73 device it would false think the chipset was correct because the wrong register was read and validated. This has been fixed by expanding the check to also see if the first 4 bits of the revision is not-0 (When reading the wrong register offset the returned value is usually 0 which can be interpreted as invalid) Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | iwl3945: place CCK rates in front of OFDM for supported ratesMohamed Abbas2007-11-144-72/+143
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch fixes association failure (reason = 18) bug by arranging CCK rates before OFDM rates. This patch will register with mac80211 the modified rate arrangement with CCK rate first. Change rate scale algorithm also to deal with rate change. Fix Txpower and rate Table commands to be constructed correctly after rearrangement. Signed-off-by: Mohamed Abbas <mabbas@linux.intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | mac80211: Fix queuing of scan containing a SSIDHelmut Schaa2007-11-142-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes scanning for specific ssid's which is broken due to the scan being queued up without respecting the ssid to scan for. Signed-off-by: Helmut Schaa <hschaa@suse.de> Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | | | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2007-11-1531-144/+157
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] N32 needs to use the compat version of sys_nfsservctl. [MIPS] irq_cpu: use handle_percpu_irq handler to avoid dropping interrupts. [MIPS] Sibyte: Fix name of clocksource. [MIPS] SNI: s/achknowledge/acknowledge/ [MIPS] Makefile: Fix canonical system names [MIPS] vpe: handle halting TCs in an errata safe way. [MIPS] Sibyte: Stop timers before programming next even. [MIPS] Sibyte: Increase minimum oneshot timer interval to two ticks. [MIPS] Lasat: Fix overlap of interrupt number ranges. [MIPS] SNI PCIT CPLUS: workaround for b0rked irq wiring of onboard PCI bus 1 [MIPS] Fix shadow register support. [MIPS] Change get_cycles to always return 0. [MIPS] Fix typo in R3000 TRACE_IRQFLAGS code [MIPS] Sibyte: Replace use of removed IO_SPACE_BASE with IOADDR. [MIPS] iounmap if in vr41xx_pciu_init() pci clock is over 33MHz [MIPS] BCM1480: Remove duplicate acknowledge of timer interrupt. [MIPS] Sibyte: pin timer interrupt to their cores. [MIPS] Qemu: Add early printk, your friend in a cold night. [MIPS] Convert reference to mem_map to pfn_to_page(). [MIPS] Sibyte: resurrect old cache hack.
| * | | | | [MIPS] N32 needs to use the compat version of sys_nfsservctl.Ralf Baechle2007-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] irq_cpu: use handle_percpu_irq handler to avoid dropping interrupts.Ralf Baechle2007-11-153-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This matters to any sort of device that is wired to one of the CPU interrupt pins on an SMP system. Typically the scenario is most easily triggered with the count/compare timer interrupt where the same interrupt number and thus irq_desc is used on each processor. CPU A CPU B do_IRQ() generic_handle_irq() handle_level_irq() spin_lock(desc_lock) set IRQ_INPROGRESS spin_unlock(desc_lock) do_IRQ() generic_handle_irq() handle_level_irq() spin_lock(desc_lock) IRQ_INPROGRESS set => bail out spin_lock(desc_lock) clear IRQ_INPROGRESS spin_unlock(desc_lock) In case of the cp0 compare interrupt this means the interrupt will be acked and not handled or re-armed on CPU b, so there won't be any timer interrupt until the count register wraps around. With kernels 2.6.20 ... 2.6.23 we usually were lucky that things were just working right on VSMP because the count registers are synchronized on bootup so it takes something that disables interrupts for a long time on one processor to trigger this one. For scenarios where an interrupt is multicasted or broadcasted over several CPUs the existing code was safe and the fix will break it. There is no way to know in the interrupt controller code because it is abstracted from the platform code. I think we do not have such a setup currently, so this should be ok. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Sibyte: Fix name of clocksource.Ralf Baechle2007-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] SNI: s/achknowledge/acknowledge/Maciej W. Rozycki2007-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Makefile: Fix canonical system namesMaciej W. Rozycki2007-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GNU `config.guess' uses "linux-gnu" as the canonical system name. Fix the list of compiler prefixes checked to spell it correctly. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] vpe: handle halting TCs in an errata safe way.Nigel Stephens2007-11-151-4/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds a JR.HB after halting a TC, to ensure that the TC has really halted. only modifies the TCSTATUS register when the TC is safely halted. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Sibyte: Stop timers before programming next even.Ralf Baechle2007-11-152-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have no guarantee by the generic time code that the timer is stopped when the ->next_event method is called. Modifying the Timer Initial Count register while the timer is enabled has UNPREDICTABLE effect according to the BCM1250/BCM1125/BCM1125H User Manual. So stop the timer before reprogramming. This is a paranoia fix; no ill effects have been observed previously. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Sibyte: Increase minimum oneshot timer interval to two ticks.Ralf Baechle2007-11-152-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the old minimum of a single tick a value of zero would be programmed into the init value register which in the BCM1250/BCM1125/BCM1125H User Manual in the Timer Special Cases section is documented to have UNPREDICTABLE effect. Observable sympthoms of this bug were hangs of several seconds on the console during bootup and later if both dyntick and highres timer options were activated. In theory contiguous mode of the timers is also affected but in an act of hopeless lack of realism I'll assume nobody will ever configure a KERNEL for HZ > 500kHz but if so I leave that to evolution to sort out. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Lasat: Fix overlap of interrupt number ranges.Yoichi Yuasa2007-11-154-28/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The range of MIPS_CPU IRQ and the range of LASAT IRQ overlap. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] SNI PCIT CPLUS: workaround for b0rked irq wiring of onboard PCI bus 1Thomas Bogendoerfer2007-11-151-1/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Fix shadow register support.Ralf Baechle2007-11-155-74/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Shadow register support would not possibly have worked on multicore systems. The support code for it was also depending not on MIPS R2 but VSMP or SMTC kernels even though it makes perfect sense with UP kernels. SR sets are a scarce resource and the expected usage pattern is that users actually hardcode the register set numbers in their code. So fix the allocator by ditching it. Move the remaining CPU probe bits into the generic CPU probe. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Change get_cycles to always return 0.Ralf Baechle2007-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This avoids us executing an mfc0 c0_count instruction on processors which don't have but also on certain R4000 and R4400 versions where reading from the count register just in the very moment when its value equals c0_compare will result in the timer interrupt getting lost. There is still a number of users of get_cycles remaining outside the arch code: crypto/tcrypt.c: start = get_cycles(); crypto/tcrypt.c: end = get_cycles(); crypto/tcrypt.c: start = get_cycles(); crypto/tcrypt.c: end = get_cycles(); crypto/tcrypt.c: start = get_cycles(); crypto/tcrypt.c: end = get_cycles(); drivers/char/hangcheck-timer.c: return get_cycles(); drivers/char/hangcheck-timer.c: printk("Hangcheck: Using get_cycles().\n"); drivers/char/random.c: sample.cycles = get_cycles(); drivers/input/joystick/analog.c:#define GET_TIME(x) do { x = get_cycles(); } include/linux/arcdevice.h: _x = get_cycles(); \ include/linux/arcdevice.h: _y = get_cycles(); \ mm/slub.c: if (!s->defrag_ratio || get_cycles() % 1024 > s->defrag_ratio) mm/slub.c: p += 64 + (get_cycles() & 0xff) * sizeof(void *); Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Fix typo in R3000 TRACE_IRQFLAGS codeAtsushi Nemoto2007-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Sibyte: Replace use of removed IO_SPACE_BASE with IOADDR.Ralf Baechle2007-11-152-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] iounmap if in vr41xx_pciu_init() pci clock is over 33MHzRoel Kluin2007-11-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iounmap if pci clock is over 33MHz. Cosmetic because the iomap() in this case is just a bit of address magic. Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Acked-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] BCM1480: Remove duplicate acknowledge of timer interrupt.Ralf Baechle2007-11-151-13/+2
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Sibyte: pin timer interrupt to their cores.Ralf Baechle2007-11-152-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Or strange things will happen. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Qemu: Add early printk, your friend in a cold night.Ralf Baechle2007-11-155-5/+35
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Convert reference to mem_map to pfn_to_page().Ralf Baechle2007-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was crashing the combination of highmem and sparsemem. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | [MIPS] Sibyte: resurrect old cache hack.Ralf Baechle2007-11-151-1/+6
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recent switch of the Sibyte SOCs from the processor specific cache managment code in c-sb1.c to c-r4k.c lost this old hack [MIPS] Hack for SB1 cache issues Removing flush_icache_page a while ago broke SB1 which was using an empty flush_data_cache_page function. This glues things well enough so a more efficient but also more intrusive solution can be found later. Signed-Off-By: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> in the hope it was no longer needed. As it turns it still is so resurrect it until there is a better solution. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-schedLinus Torvalds2007-11-152-36/+28
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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
| * | | | | sched: reorder SCHED_FEAT_ bitsIngo Molnar2007-11-151-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | reorder SCHED_FEAT_ bits so that the used ones come first. Makes tuning instructions easier. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | sched: make sched_nr_latency staticAdrian Bunk2007-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sched_nr_latency can now become static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | sched: remove activate_idle_task()Dmitry Adamushko2007-11-151-18/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Dmitry Adamushko <dmitry.adamushko@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | sched: fix __set_task_cpu() SMP raceDmitry Adamushko2007-11-151-7/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Grant Wilson <grant.wilson@zen.co.uk> Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | sched: fix SCHED_FIFO tasks & FAIR_GROUP_SCHEDOleg Nesterov2007-11-151-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Ingo Molnar <mingo@elte.hu>
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-27 10:36:52 +0000