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* [PATCH] rt2x00: Fix residual check in PLCP calculations.Mattias Nissler2007-10-181-1/+1
| | | | | | | | | | | Because rt2x00 implements the residual calculation different from what the legacy code does (i.e. scaled values), we need to adjust the residual check. Again, we are only mimicking the behaviour of the ralink driver without actually knowing what we do :-( Signed-off-by: Mattias Nissler <mattias.nissler@gmx.de> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] iwlwifi: Fix rate setting in probe request for HW sacnTomas Winkler2007-10-182-32/+52
| | | | | | | | This patch fixes setting of rates in probe request used in HW scan. The bug was reported by Helmut Schaa <hschaa@suse.de> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] b43: Make b43_stop() staticMichael Buesch2007-10-181-1/+1
| | | | | | | This fixes a sparse warning. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] drivers/net/wireless/b43/main.c: fix an uninitialized variableWANG Cong2007-10-181-1/+1
| | | | | | | | | | | | Fix an uninitialized variable in drivers/net/wireless/b43/main.c::b43_start(). Cc: Adrian Bunk <bunk@kernel.org> Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Michael Buesch <mb@bu3sch.de> Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: "John W. Linville" <linville@tuxdriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] iwlwifi: set correct base rate for A band in rs_dbgfs_set_mcsRon Rindjunsky2007-10-181-2/+8
| | | | | | | | This patch fixes base rate needed for fixed rate operation in A band Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] zd1211rw, fix oops when ejecting install mediaMarc Pignat2007-10-181-2/+5
| | | | | | | | | The disconnect function can dereference the net_device structure when it is never allocated. This is the case when ejecting the device installer. Signed-off-by: Marc Pignat <marc.pignat@hevs.ch> Acked-by: Daniel Drake <dsd@gentoo.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] b43legacy: Fix potential return of uninitialized variableLarry Finger2007-10-181-1/+1
| | | | | | | | Using the Coverity checker, Adrian Bunk found that routine b43legacy_start could return an unitialized variable. This patch fixes the problem. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] iwl4965-base.c: fix off-by-one errorsAdrian Bunk2007-10-181-4/+4
| | | | | | | | This patch fixes two off-by-one errors resulting in array overflows spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] p54: Make filter configuration atomicMichael Wu2007-10-181-1/+1
| | | | | | | | | | | p54_set_filter is now called from configure_filter, which is not allowed to sleep. The filter configuration packet allocation should be atomic now. Thanks to Dmitry Torokhov <dtor@insightbb.com> for reporting this bug. Signed-off-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] rtl8187: remove NICMAC setting in configure_filters callbackMichael Wu2007-10-181-4/+0
| | | | | | | NICMAC should always be set. Signed-off-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] janitorial: fix all double includes in drivers/net/wirelessHolger Schurig2007-10-188-20/+1
| | | | | | | | This patch removes all double includes of the same file. This makes scripts/checkincludes.pl happy. Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] rtl8187: Fix more frag bit checking, rts duration calcMichael Wu2007-10-181-15/+16
| | | | | | | | | | | | The wrong pointer is passed to ieee80211_get_morefrag. Fix this. While we're at it, reorder things so they look better and the rts duration calculation is done with the right length. Thanks to Christoph Hellwig for finding the ieee80211_get_morefrag issue. Signed-off-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] ipw2100: send WEXT scan eventsDan Williams2007-10-182-0/+43
| | | | | | | | | | ipw2100 wasn't sending WEXT scan events at all on scan completion. And like ipw2200, the driver aggressively auto-scans, requiring non-user-requested scan events to be batched together and sent at specific intervals instead of many times per seconds. Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [PATCH] zd1201: avoid null ptr access of skb->devJohn W. Linville2007-10-181-2/+2
| | | | | | skb->dev is not set until eth_type_trans is called... Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'release' of ↵Linus Torvalds2007-10-1514-334/+511
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] update sn2_defconfig [IA64] Fix kernel hangup in kdump on INIT [IA64] Fix kernel panic in kdump on INIT [IA64] Remove vector from ia64_machine_kexec() [IA64] Fix race when multiple cpus go through MCA [IA64] Remove needless delay in MCA rendezvous [IA64] add driver for ACPI methods to call native firmware [IA64] abstract SAL_CALL wrapper to allow other firmware entry points [IA64] perfmon: Remove exit_pfm_fs() [IA64] tree-wide: Misc __cpu{initdata, init, exit} annotations
| * [IA64] update sn2_defconfigJes Sorensen2007-10-151-254/+189
| | | | | | | | | | | | | | Update defonfig file for sn2 to match recent changes in config options. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Fix kernel hangup in kdump on INITKenji Kaneshige2007-10-121-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the problem that kdump on INIT hung up if kdump kernel image is not configured. The kdump_init_notifier() on monarch CPU stops its operation at DIE_INIT_MONARCH_LEAVE time if the kdump kernel image is not configured. On the other hand, kdump_init_notifier() on non-monarch CPUs get into spin because they don't know the fact the monarch stops its operation. This is the cause of this problem. To fix this problem, we need to check the kdump kernel image at the top of the kdump_init_notifier() function. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Fix kernel panic in kdump on INITKenji Kaneshige2007-10-123-3/+3
| | | | | | | | | | | | | | | | | | | | Fix the problem that kdump on INIT causes a kernel panic if kdump kernel image is not configured. The cause of this problem is machine_kexec_on_init() is using printk in INIT context. It should use ia64_mca_printk() instead. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Remove vector from ia64_machine_kexec()Simon Horman2007-10-121-5/+1
| | | | | | | | | | | | | | | | | | | | | | The use of vector in ia64_machine_kexec() seems spurious, and removing it simplifies the code slightly. As suggested by Alex Williamson <alex.williamson@hp.com> Cc: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Fix race when multiple cpus go through MCARuss Anderson2007-10-121-22/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Additional testing uncovered a situation where the MCA recovery code could hang due to a race condition. According to the SAL spec, SAL sends a rendezvous interrupt to all but the first CPU that goes into MCA. This includes other CPUs that go into MCA at the same time. Those other CPUs will go into the linux MCA handler (rather than the slave loop) with the rendezvous interrupt pending. When all the CPUs have completed MCA processing and the last monarch completes, freeing all the CPUs, the CPUs with the pended rendezvous interrupt then go into the ia64_mca_rendez_int_handler(). In ia64_mca_rendez_int_handler() the CPUs get marked as rendezvoused, but then leave the handler (due to no MCA). That leaves the CPUs marked as rendezvoused _before_ the next MCA event. When the next MCA hits, the monarch will mistakenly believe that all the CPUs are rendezvoused when they are not, opening up a window where a CPU can get stuck in the slave loop. This patch avoids leaving CPUs marked as rendezvoused when they are not. Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] Remove needless delay in MCA rendezvousRuss Anderson2007-10-121-22/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While testing the MCA recovery code, noticed that some machines would have a five second delay rendezvousing cpus. What was happening is that ia64_wait_for_slaves() would check to see if all the slave CPUs had rendezvoused. If any had not, it would wait 1 millisecond then check again. If any CPUs had still not rendezvoused, it would wait 5 seconds before checking again. On some configs the rendezvous takes more than 1 millisecond, causing the code to wait the full 5 seconds, even though the last CPU rendezvoused after only a few milliseconds. The fix is to check every 1 millisecond to see if all the cpus have rendezvoused. After 5 seconds the code concludes the CPUs will never rendezvous (same as before). The MCA code is, by definition, not performance critical, but a needless delay of 5 seconds is senseless. The 5 seconds also adds up quickly when running the error injection code in a loop. This patch both simplifies the code and removes the needless delay. Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] add driver for ACPI methods to call native firmwareBjorn Helgaas2007-10-123-0/+247
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver for HPQ5001 devices installs a global ACPI OpRegion handler. AML methods can use this OpRegion to call native firmware entry points. ACPI does not define a mechanism for AML methods to call native firmware interfaces such as PAL or SAL. This OpRegion handler adds such a mechanism. After the handler is installed, an AML method can call native firmware by storing the arguments and firmware entry point to specific offsets in the OpRegion. When AML reads the "return value" offset from the OpRegion, this handler loads up the arguments, makes the firmware call, and returns the result. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] abstract SAL_CALL wrapper to allow other firmware entry pointsBjorn Helgaas2007-10-121-6/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SAL_CALL() always calls through the ia64_sal function pointer. I am adding new functionality that needs the same conventions as SAL_CALL (FP regs saved/restored, sal_lock acquired, etc), but doesn't use the ia64_sal function pointer. This patch pulls the body of SAL_CALL out into a new "IA64_FW_CALL" that takes care of these calling conventions, but allows the caller to specify either ia64_sal or some other firmware entry point. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] perfmon: Remove exit_pfm_fs()Satyam Sharma2007-10-121-7/+0
| | | | | | | | | | | | | | | | | | | | | | Because it is dead code and not referenced by anybody else (that file cannot be built modular). Signed-off-by: Satyam Sharma <satyam@infradead.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Stephane Eranian <eranian@hpl.hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64] tree-wide: Misc __cpu{initdata, init, exit} annotationsSatyam Sharma2007-10-123-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * palinfo.c: palinfo_cpu_notifier is a CPU hotplug notifier_block, and can be marked __cpuinitdata, and the callback function palinfo_cpu_callback() itself can be marked __cpuinit. create_palinfo_proc_entries() is only called from __cpuinit callback or general __init code, therefore a candidate for __cpuinit itself. remove_palinfo_proc_entries() is only called from __cpuinit callback or general __exit code, therefore a candidate for __cpuexit. * salinfo.c: The CPU hotplug notifier_block can be __cpuinitdata. The callback salinfo_cpu_callback() is incorrectly marked __devinit -- it must be __cpuinit instead. * topology.c: cache_sysfs_init() is only called at device_initcall() time so marking it as __cpuinit is wrong and wasteful. It should be unconditionally __init. Also cleanup reference to hotplug notifier callback function from this function and replace with cache_add_dev(), which could also enable us to use other tricks to replace __cpuinit{data} annotations, as recently discussed on this list. cache_shared_cpu_map_setup() is only ever called from __cpuinit-marked functions hence both its definitions (SMP or !SMP) are candidates for __cpuinit itself. Also all_cpu_cache_info can be __cpuinitdata because only referenced from __cpuinit code. Signed-off-by: Satyam Sharma <satyam@infradead.org> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | Get rid of unused variable warning in drivers/pci/hotplug/pci_hotplug_core.cLinus Torvalds2007-10-151-2/+0
| | | | | | | | | | | | | | Commit 5a7ad7f044941316dc98eda2a087a12a7a50649d removed all uses of 'retval', but didn't remove the variable itself. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-schedLinus Torvalds2007-10-1525-1288/+1872
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched: (140 commits) sched: sync wakeups preempt too sched: affine sync wakeups sched: guest CPU accounting: maintain guest state in KVM sched: guest CPU accounting: maintain stats in account_system_time() sched: guest CPU accounting: add guest-CPU /proc/<pid>/stat fields sched: guest CPU accounting: add guest-CPU /proc/stat field sched: domain sysctl fixes: add terminator comment sched: domain sysctl fixes: do not crash on allocation failure sched: domain sysctl fixes: unregister the sysctl table before domains sched: domain sysctl fixes: use for_each_online_cpu() sched: domain sysctl fixes: use kcalloc() Make scheduler debug file operations const sched: enable wake-idle on CONFIG_SCHED_MC=y sched: reintroduce topology.h tunings sched: allow the immediate migration of cache-cold tasks sched: debug, improve migration statistics sched: debug: increase width of debug line sched: activate task_hot() only on fair-scheduled tasks sched: reintroduce cache-hot affinity sched: speed up context-switches a bit ...
| * | sched: sync wakeups preempt tooIngo Molnar2007-10-151-10/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | make sure sync wakeups preempt too - the scheduler will not overschedule as we've got various throttles against that. As a result, sync wakeups can be used more widely in the kernel (to signal wakeup affinity between tasks), and no arbitrary latencies will be introduced either. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: affine sync wakeupsIngo Molnar2007-10-153-6/+12
| | | | | | | | | | | | | | | | | | | | | | | | make sync wakeups affine for cache-cold tasks: if a cache-cold task is woken up by a sync wakeup then use the opportunity to migrate it straight away. (the two tasks are 'related' because they communicate) Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: guest CPU accounting: maintain guest state in KVMLaurent Vivier2007-10-152-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Modify KVM to update guest time accounting. [ mingo@elte.hu: ported to 2.6.24 KVM. ] Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: guest CPU accounting: maintain stats in account_system_time()Laurent Vivier2007-10-152-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | modify account_system_time() to add cputime to cpustat->guest if we are running a VCPU. We add this cputime to cpustat->user instead of cpustat->system because this part of KVM code is in fact user code although it is executed in the kernel. We duplicate VCPU time between guest and user to allow an unmodified "top(1)" to display correct value. A modified "top(1)" is able to display good cpu user time and cpu guest time by subtracting cpu guest time from cpu user time. Update "gtime" in task_struct accordingly. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: guest CPU accounting: add guest-CPU /proc/<pid>/stat fieldsLaurent Vivier2007-10-154-2/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | like for cpustat, introduce the "gtime" (guest time of the task) and "cgtime" (guest time of the task children) fields for the tasks. Modify signal_struct and task_struct. Modify /proc/<pid>/stat to display these new fields. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: guest CPU accounting: add guest-CPU /proc/stat fieldLaurent Vivier2007-10-152-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | as recent CPUs introduce a third running state, after "user" and "system", we need a new field, "guest", in cpustat to store the time used by the CPU to run virtual CPU. Modify /proc/stat to display this new field. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: domain sysctl fixes: add terminator commentMilton Miller2007-10-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | we had an incorrect-terminator bug in sd_alloc_ctl_domain_table() before, so add a comment that documents it. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: domain sysctl fixes: do not crash on allocation failureMilton Miller2007-10-151-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we are calling this at runtime, a more relaxed error path is suggested. If an allocation fails, we just register the partial table, which will show empty directories. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: domain sysctl fixes: unregister the sysctl table before domainsMilton Miller2007-10-151-4/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | Unregister and free the sysctl table before destroying domains, then rebuild and register after creating the new domains. This prevents the sysctl table from pointing to freed memory for root to write. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: domain sysctl fixes: use for_each_online_cpu()Milton Miller2007-10-151-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | init_sched_domain_sysctl was walking cpus 0-n and referencing per_cpu variables. If the cpus_possible mask is not contigious this will result in a crash referencing unallocated data. If the online mask is not contigious then we would show offline cpus and miss online ones. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: domain sysctl fixes: use kcalloc()Milton Miller2007-10-151-3/+2
| | | | | | | | | | | | | | | | | | | | | kcalloc checks for n * sizeof(element) overflows and it zeros. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | Make scheduler debug file operations constArjan van de Ven2007-10-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In general, struct file_operations are const in the kernel, to not have false cacheline sharing and to catch bugs at compiletime with accidental writes to them. The new scheduler code introduces a new non-const one; fix this up. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: enable wake-idle on CONFIG_SCHED_MC=yIngo Molnar2007-10-151-3/+4
| | | | | | | | | | | | | | | | | | | | | most multicore CPUs today have shared L2 caches, so tune things so that the spreading amongst cores is more aggressive. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: reintroduce topology.h tuningsIngo Molnar2007-10-151-7/+5
| | | | | | | | | | | | | | | | | | | | | reintroduce the 2.6.22 topology.h tunings again - they result in slightly better balancing. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: allow the immediate migration of cache-cold tasksIngo Molnar2007-10-151-1/+7
| | | | | | | | | | | | | | | | | | allow the immediate migration of cache-cold tasks. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: debug, improve migration statisticsIngo Molnar2007-10-153-32/+149
| | | | | | | | | | | | | | | | | | | | | add new migration statistics when SCHED_DEBUG and SCHEDSTATS is enabled. Available in /proc/<PID>/sched. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: debug: increase width of debug lineIngo Molnar2007-10-151-6/+7
| | | | | | | | | | | | | | | | | | increase width of debug line - in preparation of more debugging info. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: activate task_hot() only on fair-scheduled tasksPeter Zijlstra2007-10-151-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | activate task_hot() only for fair-scheduled tasks (i.e. disable it for RT tasks). Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: reintroduce cache-hot affinityIngo Molnar2007-10-154-0/+38
| | | | | | | | | | | | | | | | | | | | | | | | reintroduce a simplified version of cache-hot/cold scheduling affinity. This improves performance with certain SMP workloads, such as sysbench. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: speed up context-switches a bitIngo Molnar2007-10-151-11/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | speed up context-switches a bit by not clearing p->exec_start. (as a side-effect, this also makes p->exec_start a universal timestamp available to cache-hot estimations.) Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: do not wakeup-preempt with SCHED_BATCH tasksIngo Molnar2007-10-151-0/+6
| | | | | | | | | | | | | | | | | | | | | do not wakeup-preempt with SCHED_BATCH tasks, their preemption is batched too, driven by the tick. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: generate uevents for user creation/destructionSrivatsa Vaddagiri2007-10-151-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | Generate uevents when a user is being created/destroyed. These events can be used to configure cpu share of a new user. Signed-off-by: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | sched: do not normalize kernel threads via SysRq-NIngo Molnar2007-10-151-11/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | do not normalize kernel threads via SysRq-N: the migration threads, softlockup threads, etc. might be essential for the system to function properly. So only zap user tasks. pointed out by Andi Kleen. Signed-off-by: Ingo Molnar <mingo@elte.hu>
generated by cgit v1.1 at 2025-01-15 09:50:00 +0000