Phil Auld
b510018602
sched/fair: Fix enqueue_task_fair() warning some more ...
[ Upstream commit b34cb07dde7c2346dec73d053ce926aeaa087303 ]
sched/fair: Fix enqueue_task_fair warning some more
The recent patch, fe61468b2cb (sched/fair: Fix enqueue_task_fair warning)
did not fully resolve the issues with the rq->tmp_alone_branch !=
&rq->leaf_cfs_rq_list warning in enqueue_task_fair. There is a case where
the first for_each_sched_entity loop exits due to on_rq, having incompletely
updated the list. In this case the second for_each_sched_entity loop can
further modify se. The later code to fix up the list management fails to do
what is needed because se does not point to the sched_entity which broke out
of the first loop. The list is not fixed up because the throttled parent was
already added back to the list by a task enqueue in a parallel child hierarchy.
Address this by calling list_add_leaf_cfs_rq if there are throttled parents
while doing the second for_each_sched_entity loop.
Fixes: fe61468b2cb ("sched/fair: Fix enqueue_task_fair warning")
Suggested-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Phil Auld <pauld@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/20200512135222.GC2201@lorien.usersys.redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-05-27 17:46:52 +02:00
bpf: Fix error return code in map_lookup_and_delete_elem()
2020-05-20 08:20:19 +02:00
cgroup1: don't call release_agent when it is ""
2020-04-01 11:01:51 +02:00
kgdb: don't use a notifier to enter kgdb at panic; call directly
2019-09-25 17:51:40 -07:00
dma-direct: fix data truncation in dma_direct_get_required_mask()
2020-04-29 16:33:00 +02:00
perf/core: fix parent pid/tid in task exit events
2020-05-02 08:48:52 +02:00
kernel/gcov/fs.c: gcov_seq_next() should increase position index
2020-04-29 16:33:00 +02:00
genirq/debugfs: Add missing sanity checks to interrupt injection
2020-04-17 10:50:11 +02:00
locktorture: Print ratio of acquisitions, not failures
2020-04-23 10:36:44 +02:00
PM: hibernate: Freeze kernel threads in software_resume()
2020-05-06 08:15:09 +02:00
printk: queue wake_up_klogd irq_work only if per-CPU areas are ready
2020-05-02 08:48:42 +02:00
rcu: Allow only one expedited GP to run concurrently with wakeups
2020-03-05 16:43:50 +01:00
sched/fair: Fix enqueue_task_fair() warning some more
2020-05-27 17:46:52 +02:00
time/sched_clock: Expire timer in hardirq context
2020-04-17 10:50:02 +02:00
Stop the ad-hoc games with -Wno-maybe-initialized
2020-05-20 08:20:28 +02:00
audit: check the length of userspace generated audit records
2020-04-29 16:33:18 +02:00
audit_get_nd(): don't unlock parent too early
2019-11-10 11:56:55 -05:00
audit: fix error handling in audit_data_to_entry()
2020-03-05 16:43:42 +01:00
cpu/hotplug: Ignore pm_wakeup_pending() for disable_nonboot_cpus()
2020-04-17 10:50:11 +02:00
keys: Fix request_key() cache
2020-01-17 19:48:42 +01:00
kernel/elfcore.c: include proper prototypes
2019-09-25 17:51:39 -07:00
exit: panic before exit_mm() on global init exit
2020-01-09 10:20:01 +01:00
fork: prevent accidental access to clone3 features
2020-05-20 08:20:22 +02:00
Revert "libata, freezer: avoid block device removal while system is frozen"
2019-10-06 09:11:37 -06:00
futex: Unbreak futex hashing
2020-03-25 08:25:58 +01:00
kheaders: substituting --sort in archive creation
2019-10-17 09:08:19 +09:00
kexec: bail out upon SIGKILL when allocating memory.
2019-09-25 17:51:40 -07:00
Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-09-28 08:14:15 -07:00
kmod: make request_module() return an error when autoloading is disabled
2020-04-17 10:50:22 +02:00
kprobes: Fix optimize_kprobe()/unoptimize_kprobe() cancellation logic
2020-03-12 13:00:09 +01:00
kthread: make __kthread_queue_delayed_work static
2019-10-16 09:20:58 -07:00
Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
2019-09-27 19:37:27 -07:00
module: avoid setting info->name early in case we can fall back to info->mod->name
2020-02-24 08:36:54 +01:00
x86/mm: split vmalloc_sync_all()
2020-03-25 08:25:58 +01:00
padata: always acquire cpu_hotplug_lock before pinst->lock
2020-04-08 09:08:47 +02:00
panic: ensure preemption is disabled during panic()
2019-10-07 15:47:19 -07:00
ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()
2020-01-23 08:22:36 +01:00
mm/memory_hotplug.c: use PFN_UP / PFN_DOWN in walk_system_ram_range()
2019-09-24 15:54:09 -07:00
seccomp: Add missing compat_ioctl for notify
2020-04-17 10:50:09 +02:00
signal: check sig before setting info in kill_pid_usb_asyncio
2020-05-02 08:48:55 +02:00
stacktrace: Don't skip first entry on noncurrent tasks
2019-11-04 21:19:25 +01:00
stop_machine: Avoid potential race behaviour
2019-10-17 12:47:12 +02:00
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-09-17 12:35:15 -07:00
kernel: sysctl: make drop_caches write-only
2020-01-04 19:18:32 +01:00
taskstats: fix data-race
2020-01-09 10:19:54 +01:00
umh: fix memory leak on execve failure
2020-05-20 08:20:13 +02:00
watchdog/softlockup: Enforce that timestamp is valid on boot
2020-02-24 08:36:52 +01:00
workqueue: don't use wq_select_unbound_cpu() for bound works
2020-03-18 07:17:50 +01:00
b510018602