Morten Rasmussen
1f6e6c7cb9
sched/core: Introduce SD_ASYM_CPUCAPACITY sched_domain topology flag ...
Add a topology flag to the sched_domain hierarchy indicating the lowest
domain level where the full range of CPU capacities is represented by
the domain members for asymmetric capacity topologies (e.g. ARM
big.LITTLE).
The flag is intended to indicate that extra care should be taken when
placing tasks on CPUs and this level spans all the different types of
CPUs found in the system (no need to look further up the domain
hierarchy). This information is currently only available through
iterating through the capacities of all the CPUs at parent levels in the
sched_domain hierarchy.
SD 2 [ 0 1 2 3] SD_ASYM_CPUCAPACITY
SD 1 [ 0 1] [ 2 3] !SD_ASYM_CPUCAPACITY
CPU: 0 1 2 3
capacity: 756 756 1024 1024
If the topology in the example above is duplicated to create an eight
CPU example with third sched_domain level on top (SD 3), this level
should not have the flag set (!SD_ASYM_CPUCAPACITY) as its two group
would both have all CPU capacities represented within them.
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dietmar.eggemann@arm.com
Cc: freedom.tan@mediatek.com
Cc: keita.kobayashi.ym@renesas.com
Cc: mgalbraith@suse.de
Cc: sgurrappadi@nvidia.com
Cc: vincent.guittot@linaro.org
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/1469453670-2660-6-git-send-email-morten.rasmussen@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-08-18 11:26:53 +02:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-07-27 12:03:20 -07:00
config: add android config fragments
2016-08-02 19:35:42 -04:00
perf/core: Set cgroup in CPU contexts for new cgroup events
2016-08-10 13:05:52 +02:00
gcov: add support for gcc version >= 6
2016-07-15 14:54:27 +09:00
genirq/msi: Make sure PCI MSIs are activated early
2016-08-09 09:19:32 +02:00
modules: add ro_after_init support
2016-08-04 10:16:55 +09:30
locking/pvqspinlock: Fix a bug in qstat_read()
2016-08-10 14:13:29 +02:00
Merge branches 'pm-sleep' and 'pm-cpufreq'
2016-08-12 22:53:58 +02:00
Revert "printk: create pr_<level> functions"
2016-08-09 10:48:18 -07:00
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-07-29 13:55:30 -07:00
sched/core: Introduce SD_ASYM_CPUCAPACITY sched_domain topology flag
2016-08-18 11:26:53 +02:00
timers: Fix get_next_timer_interrupt() computation
2016-08-09 09:31:55 +02:00
block: rename bio bi_rw to bi_opf
2016-08-07 14:41:02 -06:00
Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit
2016-07-29 17:54:17 -07:00
Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit
2016-07-29 17:54:17 -07:00
audit: cleanup prune_tree_thread
2016-04-04 09:46:47 -04:00
don't bother with ->d_inode->i_sb - it's always equal to ->d_sb
2016-04-10 17:11:51 -04:00
audit: add fields to exclude filter by reusing user filter
2016-06-27 11:01:00 -04:00
Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit
2016-07-29 17:54:17 -07:00
kernel: Add noaudit variant of ns_capable()
2016-06-06 20:16:18 +10:00
Merge branch 'for-4.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2016-07-29 14:29:04 -07:00
cgroup: Use lld instead of ld when printing pids controller events_limit
2016-06-21 15:03:36 -04:00
timers/core: Correct callback order during CPU hot plug
2016-07-28 18:56:22 +02:00
cpuset, mm: fix TIF_MEMDIE check in cpuset_change_task_nodemask
2016-07-28 16:07:41 -07:00
cred: Reject inodes with invalid ids in set_create_file_as()
2016-06-30 18:05:09 -05:00
kernel/exit.c: quieten greatest stack depth printk
2016-08-02 19:35:23 -04:00
mm: fix memcg stack accounting for sub-page stacks
2016-07-28 16:07:41 -07:00
freezer, oom: check TIF_MEMDIE on the correct task
2016-07-28 16:07:41 -07:00
futex: Assume all mappings are private on !MMU systems
2016-07-29 18:44:14 +02:00
kernel/hung_task.c: use timeout diff when timeout is updated
2016-03-22 15:36:02 -07:00
powerpc updates for 4.8 #2
2016-08-05 09:00:54 -04:00
kallsyms: add support for relative offsets in kallsyms address table
2016-03-15 16:55:16 -07:00
kernel/kcov: unproxify debugfs file's fops
2016-06-15 04:56:35 -07:00
kexec: allow architectures to override boot mapping
2016-08-02 19:35:27 -04:00
kexec: add restriction on kexec_load() segment sizes
2016-08-02 19:35:31 -04:00
kexec: introduce a protection mechanism for the crashkernel reserved memory
2016-05-23 17:04:14 -07:00
kexec: add a kexec_crash_loaded() function
2016-08-02 19:35:30 -04:00
ELF/MIPS build fix
2016-05-23 17:04:14 -07:00
libnvdimm for 4.8
2016-07-28 17:38:16 -07:00
Removed the MODULE_SIG_FORCE-means-no-MODULE_FORCE_LOAD patch.
2016-08-04 09:14:38 -04:00
KEYS: Move the point of trust determination to __key_link()
2016-04-11 22:43:43 +01:00
kernel/padata.c: hide unused functions
2016-05-19 19:12:14 -07:00
kexec: use core_param for crash_kexec_post_notifiers boot option
2016-08-02 19:35:29 -04:00
remove lots of IS_ERR_VALUE abuses
2016-05-27 15:26:11 -07:00
profile: Convert to hotplug state machine
2016-07-15 10:41:42 +02:00
tree-wide: replace config_enabled() with IS_ENABLED()
2016-08-04 08:50:07 -04:00
relay: add global mode support for buffer-only channels
2016-08-02 19:35:41 -04:00
/proc/iomem: only expose physical resource addresses to privileged users
2016-04-14 12:56:09 -07:00
tree-wide: replace config_enabled() with IS_ENABLED()
2016-08-04 08:50:07 -04:00
signals: Use hrtimer for sigtimedwait()
2016-07-07 10:35:07 +02:00
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-07-29 13:55:30 -07:00
cpu/hotplug: Unpark smpboot threads from the state machine
2016-03-01 20:36:56 +01:00
cpu/hotplug: Create hotplug threads
2016-03-01 20:36:56 +01:00
arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections
2016-03-25 16:37:42 -07:00
stop_machine: Touch_nmi_watchdog() after MULTI_STOP_PREPARE
2016-07-27 11:12:11 +02:00
prctl: make PR_SET_THP_DISABLE wait for mmap_sem killable
2016-05-23 17:04:14 -07:00
printk: add kernel parameter to control writes to /dev/kmsg
2016-08-02 19:35:06 -04:00
kernel/sysctl_binary.c: use generic UUID library
2016-05-20 17:58:30 -07:00
task_work: use READ_ONCE/lockless_dereference, avoid pi_lock if !task_works
2016-08-02 19:35:02 -04:00
taskstats: use the libnl API to align nlattr on 64-bit
2016-04-23 20:13:25 -04:00
torture: Stop onoff task if there is only one cpu
2016-06-14 16:03:28 -07:00
kernel/...: convert pr_warning to pr_warn
2016-03-22 15:36:02 -07:00
time, acct: Drop irq save & restore from __acct_update_integrals()
2016-02-29 09:53:09 +01:00
fs: Limit file caps to the user namespace of the super block
2016-06-24 10:40:31 -05:00
Revert "perf/x86/intel, watchdog: Switch NMI watchdog to ref cycles on x86"
2016-07-10 20:58:36 +02:00
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-07-29 13:55:30 -07:00
sched/core: Get rid of 'cpu' argument in wq_worker_sleeping()
2016-03-02 10:28:47 -05:00
1f6e6c7cb9