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Juri Lelli 0dfe87dff2 BACKPORT: sched/cpuset: Bring back cpuset_mutex 
Turns out percpu_cpuset_rwsem - commit 1243dc518c ("cgroup/cpuset:
Convert cpuset_mutex to percpu_rwsem") - wasn't such a brilliant idea,
as it has been reported to cause slowdowns in workloads that need to
change cpuset configuration frequently and it is also not implementing
priority inheritance (which causes troubles with realtime workloads).

Convert percpu_cpuset_rwsem back to regular cpuset_mutex. Also grab it
only for SCHED_DEADLINE tasks (other policies don't care about stable
cpusets anyway).

Bug: 238390134
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Reviewed-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
(cherry picked from commit 111cd11bbc
https://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git cgroup/for-6.5)
[Conflicts in all the files. Mostly trivial. cpuset.c had new functions
added on mainline and we rejected lots of hunks related to this new
code. Removed ANDROID specific BUG check that uses cpuset_rwsem which
was a left over from a revert of CPU PAUSE feature that should no longer
exist on 5.15]
Signed-off-by: Qais Yousef <qyousef@google.com>
Change-Id: Ibc77724cdd16a98053b277a79f724bbeb49621de
2023-06-15 21:03:11 +00:00
..
bpf
Merge 5.15.109 into android14-5.15
2023-04-26 13:37:41 +00:00
cgroup
BACKPORT: sched/cpuset: Bring back cpuset_mutex
2023-06-15 21:03:11 +00:00
configs
drivers/char: remove /dev/kmem for good
2021-05-07 00:26:34 -07:00
debug
lockdown: also lock down previous kgdb use
2022-05-25 09:57:37 +02:00
dma
FROMLIST: mm: cma: introduce gfp flag in cma_alloc instead of no_warn
2023-01-05 02:16:50 +00:00
entry
entry/rcu: Check TIF_RESCHED _after_ delayed RCU wake-up
2023-03-30 12:47:51 +02:00
events
Merge 5.15.107 into android14-5.15
2023-04-17 11:31:12 +00:00
futex
ANDROID: vendor_hooks: Add hooks for oem futex optimization
2023-05-11 02:31:28 +00:00
gcov
gcov: add support for checksum field
2022-12-31 13:14:47 +01:00
irq
Merge 5.15.103 into android14-5.15
2023-03-23 12:10:59 +00:00
kcsan
BACKPORT: arm64: Enable KCSAN
2023-06-09 08:39:36 +00:00
livepatch
livepatch: fix race between fork and KLP transition
2022-10-26 12:34:30 +02:00
locking
FROMGIT: locking/rwsem: Add __always_inline annotation to __down_read_common() and inlined callers
2023-05-12 16:47:54 +00:00
power
ANDROID: power: Add vendor hook to qos for GKI purpose.
2023-05-18 13:30:37 +00:00
printk
Merge 5.15.100 into android14-5.15
2023-03-21 10:16:45 +00:00
rcu
BACKPORT: FROMGIT: rcu: Avoid freeing new kfree_rcu() memory after old grace period
2023-04-20 01:04:33 +00:00
sched
BACKPORT: sched/cpuset: Bring back cpuset_mutex
2023-06-15 21:03:11 +00:00
time
Merge 5.15.99 into android14-5.15
2023-03-17 13:35:31 +00:00
trace
Merge 5.15.108 into android14-5.15
2023-04-25 16:02:54 +00:00
.gitignore
ANDROID: add gki_module headers to .gitignore file
2022-04-27 15:34:29 +00:00
acct.c
acct: fix potential integer overflow in encode_comp_t()
2022-12-31 13:14:40 +01:00
async.c
Revert "module, async: async_synchronize_full() on module init iff async is used"
2022-02-23 12:03:07 +01:00
audit_fsnotify.c
audit: fix potential double free on error path from fsnotify_add_inode_mark
2022-08-31 17:16:33 +02:00
audit_tree.c
audit: move put_tree() to avoid trim_trees refcount underflow and UAF
2021-08-24 18:52:36 -04:00
audit_watch.c
fsnotify: generalize handle_inode_event()
2020-12-03 14:58:35 +01:00
audit.c
audit: improve audit queue handling when "audit=1" on cmdline
2022-02-08 18:34:03 +01:00
audit.h
audit: log AUDIT_TIME_* records only from rules
2022-04-08 14:23:06 +02:00
auditfilter.c
lsm: separate security_task_getsecid() into subjective and objective variants
2021-03-22 15:23:32 -04:00
auditsc.c
audit: log AUDIT_TIME_* records only from rules
2022-04-08 14:23:06 +02:00
backtracetest.c
treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()
2020-07-30 11:15:58 -07:00
bounds.c
BACKPORT: mm: multi-gen LRU: minimal implementation
2022-11-30 00:28:11 +00:00
capability.c
capability: handle idmapped mounts
2021-01-24 14:27:16 +01:00
cfi.c
FROMLIST: cfi: free old cfi shadow asynchronously
2022-11-14 22:32:51 +00:00
compat.c
sched_getaffinity: don't assume 'cpumask_size()' is fully initialized
2023-04-05 11:24:53 +02:00
configs.c
…
context_tracking.c
context_tracking: Ensure that the critical path cannot be instrumented
2020-06-11 15:14:36 +02:00
cpu_pm.c
PM: cpu: Make notifier chain use a raw_spinlock_t
2021-08-16 18:55:32 +02:00
cpu.c
Merge 5.15.86 into android14-5.15
2023-01-18 12:52:16 +00:00
crash_core.c
kernel/crash_core: suppress unknown crashkernel parameter warning
2021-12-29 12:28:49 +01:00
crash_dump.c
…
cred.c
Merge 5.15.25 into android13-5.15
2022-02-23 12:30:26 +01:00
delayacct.c
delayacct: Add sysctl to enable at runtime
2021-05-12 11:43:25 +02:00
dma.c
…
exec_domain.c
…
exit.c
Merge 5.15.91 into android14-5.15
2023-02-01 09:38:19 +00:00
extable.c
…
fail_function.c
kernel/fail_function: fix memory leak with using debugfs_lookup()
2023-03-11 13:57:38 +01:00
fork.c
Merge 5.15.103 into android14-5.15
2023-03-23 12:10:59 +00:00
freezer.c
ANDROID: freezer: Add vendor hook to freezer for GKI purpose.
2023-05-18 13:30:37 +00:00
gen_kheaders.sh
UPSTREAM: kheaders: Have cpio unconditionally replace files
2022-07-14 22:20:19 +00:00
gki_module.c
ANDROID: GKI: Only protect exports if KMI symbols are present
2022-12-19 16:16:00 +00:00
groups.c
groups: simplify struct group_info allocation
2021-02-26 09:41:03 -08:00
hung_task.c
FROMLIST: freezer: Add frozen_or_skipped() helper function
2022-02-10 09:29:34 +00:00
iomem.c
…
irq_work.c
Merge 8ecfa36cd4 ("Merge tag 'riscv-for-linus-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux") into android-mainline
2021-06-13 15:19:53 +02:00
jump_label.c
jump_label: Fix jump_label_text_reserved() vs __init
2021-07-05 10:46:20 +02:00
kallsyms.c
module: add printk formats to add module build ID to stacktraces
2021-07-08 11:48:22 -07:00
kcmp.c
Merge branch 'exec-update-lock-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2020-12-15 19:36:48 -08:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
locking/rwlock: Provide RT variant
2021-08-17 17:50:51 +02:00
Kconfig.preempt
sched/core: Disable CONFIG_SCHED_CORE by default
2021-06-28 22:43:05 +02:00
kcov.c
kernel: make kcov_common_handle consider the current context
2020-11-02 18:00:20 -08:00
kexec_core.c
panic, kexec: make __crash_kexec() NMI safe
2023-04-20 12:13:57 +02:00
kexec_elf.c
…
kexec_file.c
panic, kexec: make __crash_kexec() NMI safe
2023-04-20 12:13:57 +02:00
kexec_internal.h
panic, kexec: make __crash_kexec() NMI safe
2023-04-20 12:13:57 +02:00
kexec.c
panic, kexec: make __crash_kexec() NMI safe
2023-04-20 12:13:57 +02:00
kheaders.c
…
kmod.c
modules: add CONFIG_MODPROBE_PATH
2021-05-07 00:26:33 -07:00
kprobes.c
x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range
2023-03-10 09:40:01 +01:00
ksysfs.c
kexec: turn all kexec_mutex acquisitions into trylocks
2023-04-20 12:13:57 +02:00
kthread.c
kthread: add the helper function kthread_run_on_cpu()
2023-03-30 12:47:42 +02:00
latencytop.c
…
Makefile
ANDROID: GKI: Multi arch exports protection support
2023-03-31 18:52:41 +00:00
module_signature.c
module: harden ELF info handling
2021-01-19 10:24:45 +01:00
module_signing.c
module: harden ELF info handling
2021-01-19 10:24:45 +01:00
module-internal.h
ANDROID: GKI: Protect exports of protected GKI modules
2022-12-16 16:44:54 +00:00
module.c
Merge 5.15.91 into android14-5.15
2023-02-01 09:38:19 +00:00
notifier.c
notifier: Remove atomic_notifier_call_chain_robust()
2021-08-16 18:55:32 +02:00
nsproxy.c
memcg: enable accounting for new namesapces and struct nsproxy
2021-09-03 09:58:12 -07:00
padata.c
padata: Fix list iterator in padata_do_serial()
2022-12-31 13:14:24 +01:00
panic.c
exit: Use READ_ONCE() for all oops/warn limit reads
2023-02-01 08:27:22 +01:00
params.c
params: lift param_set_uint_minmax to common code
2021-08-16 14:42:22 +02:00
pid_namespace.c
rcu-tasks: Fix synchronize_rcu_tasks() VS zap_pid_ns_processes()
2023-03-10 09:39:09 +01:00
pid.c
Merge 4520dcbe0d ("Merge tag 'for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply") into android-mainline
2021-09-02 09:42:36 +02:00
profile.c
profiling: fix shift too large makes kernel panic
2022-08-17 14:24:04 +02:00
ptrace.c
ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
2022-06-09 10:22:29 +02:00
range.c
kernel.h: split out min()/max() et al. helpers
2020-10-16 11:11:19 -07:00
reboot.c
ANDROID: reboot: Export reboot_mode
2021-09-28 08:49:54 -07:00
regset.c
regset: kill ->get()
2020-07-27 14:31:12 -04:00
relay.c
relay: fix type mismatch when allocating memory in relay_create_buf()
2022-12-31 13:14:05 +01:00
resource_kunit.c
resource: provide meaningful MODULE_LICENSE() in test suite
2020-11-25 18:52:35 +01:00
resource.c
dax/kmem: Fix leak of memory-hotplug resources
2023-03-10 09:40:08 +01:00
rseq.c
rseq: Remove broken uapi field layout on 32-bit little endian
2022-04-08 14:23:10 +02:00
scftorture.c
scftorture: Fix distribution of short handler delays
2022-06-09 10:22:46 +02:00
scs.c
UPSTREAM: scs: add support for dynamic shadow call stacks
2023-05-25 16:09:30 -07:00
seccomp.c
seccomp: Invalidate seccomp mode to catch death failures
2022-02-16 12:56:38 +01:00
signal.c
ANDROID: vendor_hooks: Add hooks for signal
2023-04-25 18:08:34 +08:00
smp.c
locking/csd_lock: Change csdlock_debug from early_param to __setup
2022-08-17 14:24:24 +02:00
smpboot.c
smpboot: Replace deprecated CPU-hotplug functions.
2021-08-10 14:57:42 +02:00
smpboot.h
…
softirq.c
ANDROID: softirq: Add EXPORT_SYMBOL_GPL for softirq and tasklet
2023-01-31 23:44:26 +00:00
stackleak.c
gcc-plugins/stackleak: Use noinstr in favor of notrace
2022-02-23 12:03:07 +01:00
stacktrace.c
Merge 5.15.34 into android13-5.15
2022-04-24 16:57:32 +02:00
static_call_inline.c
static_call: Don't make __static_call_return0 static
2022-04-13 20:59:28 +02:00
static_call.c
static_call: Don't make __static_call_return0 static
2022-04-13 20:59:28 +02:00
stop_machine.c
ANDROID: sched: allow access to critical common code for CPU Pause
2021-11-09 00:42:10 +00:00
sys_ni.c
kernel/sys_ni: add compat entry for fadvise64_64
2022-08-31 17:16:33 +02:00
sys.c
Merge 5.15.109 into android14-5.15
2023-04-26 13:37:41 +00:00
sysctl-test.c
kernel/sysctl-test: Remove some casts which are no-longer required
2021-06-23 16:41:24 -06:00
sysctl.c
Merge 5.15.91 into android14-5.15
2023-02-01 09:38:19 +00:00
task_work.c
kasan: record task_work_add() call stack
2021-04-30 11:20:42 -07:00
taskstats.c
treewide: rename nla_strlcpy to nla_strscpy.
2020-11-16 08:08:54 -08:00
test_kprobes.c
…
torture.c
torture: Replace deprecated CPU-hotplug functions.
2021-08-10 10:48:07 -07:00
tracepoint.c
Merge 996fe06160 ("Merge tag 'kgdb-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux") into android-mainline
2021-09-14 16:16:54 +02:00
tsacct.c
taskstats: Cleanup the use of task->exit_code
2022-01-27 11:05:35 +01:00
ucount.c
ucounts: Handle wrapping in is_ucounts_overlimit
2022-02-23 12:03:20 +01:00
uid16.c
…
uid16.h
…
umh.c
Revert "ANDROID: umh: Enable usermode helper for required use cases"
2022-07-19 03:54:51 +00:00
up.c
Merge tag 'locking-urgent-2021-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2021-05-09 13:07:03 -07:00
user_namespace.c
ucounts: Fix systemd LimitNPROC with private users regression
2022-03-08 19:12:42 +01:00
user-return-notifier.c
…
user.c
ANDROID: user: Add vendor hook to user for GKI purpose
2023-05-18 13:30:37 +00:00
usermode_driver.c
Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-07-03 11:41:14 -07:00
utsname_sysctl.c
…
utsname.c
uts: Use generic ns_common::count
2020-08-19 14:13:20 +02:00
watch_queue.c
watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths
2023-03-17 08:48:59 +01:00
watchdog_hld.c
…
watchdog.c
Merge 5.15.63 into android14-5.15
2022-09-24 10:01:09 +02:00
workqueue_internal.h
workqueue: Assign a color to barrier work items
2021-08-17 07:49:10 -10:00
workqueue.c
ANDROID: workqueue: export symbol of the function wq_worker_comm()
2023-04-25 01:58:41 +00:00