Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Peter Zijlstra b5179ac70d sched/fair: Prepare to fix fairness problems on migration ... Mike reported that our recent attempt to fix migration problems: 3a47d5124a ("sched/fair: Fix fairness issue on migration") broke interactivity and the signal starve test. We reverted that commit and now let's try it again more carefully, with some other underlying problems fixed first. One problem is that I assumed ENQUEUE_WAKING was only set when we do a cross-cpu wakeup (migration), which isn't true. This means we now destroy the vruntime history of tasks and wakeup-preemption suffers. Cure this by making my assumption true, only call sched_class::task_waking() when we do a cross-cpu wakeup. This avoids the indirect call in the case we do a local wakeup. Reported-by: Mike Galbraith <mgalbraith@suse.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Hunter <ahh@google.com> Cc: Ben Segall <bsegall@google.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Mike Galbraith <efault@gmx.de> Cc: Morten Rasmussen <morten.rasmussen@arm.com> Cc: Paul Turner <pjt@google.com> Cc: Pavan Kondeti <pkondeti@codeaurora.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: byungchul.park@lge.com Cc: linux-kernel@vger.kernel.org Fixes: 3a47d5124a ("sched/fair: Fix fairness issue on migration") Signed-off-by: Ingo Molnar <mingo@kernel.org>		2016-05-12 09:55:31 +02:00
..
bpf	bpf: fix check_map_func_compatibility logic	2016-04-28 17:29:45 -04:00
configs
debug	mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings	2016-02-22 08:51:37 +01:00
events	perf/core: Change the default paranoia level to 2	2016-05-09 17:57:12 -07:00
gcov	gcov: use within_module() helper.	2015-12-04 22:46:25 +01:00
irq	genirq: Dont allow affinity mask to be updated on IPIs	2016-04-21 12:05:15 +02:00
livepatch	livepatch/module: remove livepatch module notifier	2016-03-17 09:45:10 +01:00
locking	Merge branch 'sched/urgent' into sched/core to pick up fixes	2016-05-12 09:18:13 +02:00
power	Power management and ACPI material for v4.6-rc1, part 2	2016-03-24 22:59:58 -07:00
printk	printk: add clear_idx symbol to vmcoreinfo	2016-03-17 15:09:34 -07:00
rcu	kernel: add kcov code coverage	2016-03-22 15:36:02 -07:00
sched	sched/fair: Prepare to fix fairness problems on migration	2016-05-12 09:55:31 +02:00
time	sched/fair: Correctly handle nohz ticks CPU load accounting	2016-04-23 14:20:42 +02:00
trace	tracing: Don't display trigger file for events that can't be enabled	2016-05-03 12:59:30 -04:00
.gitignore	certs: add .gitignore to stop git nagging about x509_certificate_list	2015-10-21 15:18:35 +01:00
acct.c
async.c	async: export current_is_async()	2015-11-19 17:51:48 +01:00
audit.c	Merge branch 'stable-4.6' of git://git.infradead.org/users/pcmoore/audit	2016-03-19 17:52:49 -07:00
audit.h	security: Make inode argument of inode_getsecid non-const	2015-12-24 11:09:39 -05:00
audit_fsnotify.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
audit_tree.c	audit: audit_tree_match can be boolean	2015-11-04 08:23:51 -05:00
audit_watch.c	Merge branch 'stable-4.6' of git://git.infradead.org/users/pcmoore/audit	2016-03-19 17:52:49 -07:00
auditfilter.c	audit: Fix typo in comment	2016-02-08 11:25:39 -05:00
auditsc.c	auditsc: for seccomp events, log syscall compat state using in_compat_syscall	2016-03-22 15:36:02 -07:00
backtracetest.c
bounds.c
capability.c
cgroup.c	cgroup, cpuset: replace cpuset_post_attach_flush() with cgroup_subsys->post_attach callback	2016-04-25 15:45:14 -04:00
cgroup_freezer.c	cgroup: kill cgrp_ss_priv[CGROUP_CANFORK_COUNT] and friends	2015-12-03 10:24:08 -05:00
cgroup_pids.c	cgroup_pids: fix a typo.	2015-12-14 14:54:37 -05:00
compat.c
configs.c
context_tracking.c	context_tracking: Switch to new static_branch API	2015-11-24 09:56:43 +01:00
cpu.c	sched/hotplug: Make activate() the last hotplug step	2016-05-06 14:58:25 +02:00
cpu_pm.c
cpuset.c	cgroup, cpuset: replace cpuset_post_attach_flush() with cgroup_subsys->post_attach callback	2016-04-25 15:45:14 -04:00
crash_dump.c
cred.c	kmemcg: account certain kmem allocations to memcg	2016-01-14 16:00:49 -08:00
delayacct.c	kmemcg: account certain kmem allocations to memcg	2016-01-14 16:00:49 -08:00
dma.c
elfcore.c
exec_domain.c
exit.c	oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space	2016-03-25 16:37:42 -07:00
extable.c
fork.c	kernel: add kcov code coverage	2016-03-22 15:36:02 -07:00
freezer.c
futex.c	futex: Acknowledge a new waiter in counter before plist	2016-04-21 11:06:09 +02:00
futex_compat.c	ptrace: use fsuid, fsgid, effective creds for fs access checks	2016-01-20 17:09:18 -08:00
groups.c
hung_task.c	kernel/hung_task.c: use timeout diff when timeout is updated	2016-03-22 15:36:02 -07:00
irq_work.c	treewide: Remove old email address	2015-11-23 09:44:58 +01:00
jump_label.c	treewide: Remove old email address	2015-11-23 09:44:58 +01:00
kallsyms.c	kallsyms: add support for relative offsets in kallsyms address table	2016-03-15 16:55:16 -07:00
kcmp.c	ptrace: use fsuid, fsgid, effective creds for fs access checks	2016-01-20 17:09:18 -08:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: don't profile branches in kcov	2016-04-28 19:34:04 -07:00
kexec.c	kexec: set KEXEC_TYPE_CRASH before sanity_check_segment_list()	2016-01-20 17:09:18 -08:00
kexec_core.c	kexec: export OFFSET(page.compound_head) to find out compound tail page	2016-04-28 19:34:04 -07:00
kexec_file.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2016-03-17 11:33:45 -07:00
kexec_internal.h	kexec: move some memembers and definitions within the scope of CONFIG_KEXEC_FILE	2016-01-20 17:09:18 -08:00
kmod.c	kmod: don't run async usermode helper as a child of kworker thread	2015-10-23 17:55:10 +09:00
kprobes.c
ksysfs.c	rcu: Remove TINY_RCU bloat from pointless boot parameters	2015-12-07 16:59:37 -08:00
kthread.c
latencytop.c	sched/debug: Make schedstats a runtime tunable that is disabled by default	2016-02-09 11:54:23 +01:00
Makefile	kernel: add kcov code coverage	2016-03-22 15:36:02 -07:00
membarrier.c
memremap.c	memremap: add MEMREMAP_WC flag	2016-03-22 15:36:02 -07:00
module-internal.h
module.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching	2016-03-17 21:46:32 -07:00
module_signing.c	X.509: Make algo identifiers text instead of enum	2016-03-03 21:49:27 +00:00
notifier.c
nsproxy.c	cgroup: introduce cgroup namespaces	2016-02-16 13:04:58 -05:00
padata.c
panic.c	panic: change nmi_panic from macro to function	2016-03-22 15:36:02 -07:00
params.c	Nothing exciting, minor tweaks and cleanups.	2015-11-09 15:53:39 -08:00
pid.c	Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-01-31 15:44:04 -08:00
pid_namespace.c
profile.c	profile: hide unused functions when !CONFIG_PROC_FS	2016-03-22 15:36:02 -07:00
ptrace.c	ptrace: change __ptrace_unlink() to clear ->ptrace under ->siglock	2016-03-22 15:36:02 -07:00
range.c
reboot.c
relay.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
resource.c	/proc/iomem: only expose physical resource addresses to privileged users	2016-04-14 12:56:09 -07:00
seccomp.c	seccomp: check in_compat_syscall, not is_compat_task, in strict mode	2016-03-22 15:36:02 -07:00
signal.c	kernel/signal.c: add compile-time check for __ARCH_SI_PREAMBLE_SIZE	2016-03-22 15:36:02 -07:00
smp.c	Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-03-15 13:50:29 -07:00
smpboot.c	cpu/hotplug: Unpark smpboot threads from the state machine	2016-03-01 20:36:56 +01:00
smpboot.h	cpu/hotplug: Create hotplug threads	2016-03-01 20:36:56 +01:00
softirq.c	arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections	2016-03-25 16:37:42 -07:00
stacktrace.c
stop_machine.c	kernel/stop_machine.c: remove CONFIG_SMP dependencies	2016-01-16 11:17:24 -08:00
sys.c	timer: convert timer_slack_ns from unsigned long to u64	2016-03-17 15:09:34 -07:00
sys_ni.c	vfs: add copy_file_range syscall and vfs helper	2015-12-01 14:00:53 -05:00
sysctl.c	mm: scale kswapd watermarks in proportion to memory	2016-03-17 15:09:34 -07:00
sysctl_binary.c	fs/coredump: prevent fsuid=0 dumps into user-controlled directories	2016-03-22 15:36:02 -07:00
task_work.c
taskstats.c
test_kprobes.c
torture.c	torture: Consolidate cond_resched_rcu_qs() into stutter_wait()	2015-10-06 11:25:01 -07:00
tracepoint.c	kernel/...: convert pr_warning to pr_warn	2016-03-22 15:36:02 -07:00
tsacct.c	time, acct: Drop irq save & restore from __acct_update_integrals()	2016-02-29 09:53:09 +01:00
uid16.c
up.c
user-return-notifier.c
user.c
user_namespace.c	kernel/*: switch to memdup_user_nul()	2016-01-04 10:27:55 -05:00
utsname.c
utsname_sysctl.c
watchdog.c	watchdog: don't run proc_watchdog_update if new value is same as old	2016-03-17 15:09:34 -07:00
workqueue.c	Merge branch 'for-4.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2016-04-27 12:03:59 -07:00
workqueue_internal.h	sched/core: Get rid of 'cpu' argument in wq_worker_sleeping()	2016-03-02 10:28:47 -05:00