Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Zhang Qiao c23928c70b sched/fair: sanitize vruntime of entity being placed ... commit 829c1651e9c4a6f78398d3e67651cef9bb6b42cc upstream. When a scheduling entity is placed onto cfs_rq, its vruntime is pulled to the base level (around cfs_rq->min_vruntime), so that the entity doesn't gain extra boost when placed backwards. However, if the entity being placed wasn't executed for a long time, its vruntime may get too far behind (e.g. while cfs_rq was executing a low-weight hog), which can inverse the vruntime comparison due to s64 overflow. This results in the entity being placed with its original vruntime way forwards, so that it will effectively never get to the cpu. To prevent that, ignore the vruntime of the entity being placed if it didn't execute for much longer than the characteristic sheduler time scale. [rkagan: formatted, adjusted commit log, comments, cutoff value] Signed-off-by: Zhang Qiao <zhangqiao22@huawei.com> Co-developed-by: Roman Kagan <rkagan@amazon.de> Signed-off-by: Roman Kagan <rkagan@amazon.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20230130122216.3555094-1-rkagan@amazon.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-04-05 11:16:41 +02:00
..
bpf	bpf: Adjust insufficient default bpf_jit_limit	2023-04-05 11:16:37 +02:00
cgroup	memcg: fix possible use-after-free in memcg_write_event_control()	2022-12-14 11:30:43 +01:00
configs
debug	treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()	2023-03-11 16:43:42 +01:00
dma	dma-debug: make things less spammy under memory pressure	2022-06-22 14:11:19 +02:00
events	perf: Fix possible memleak in pmu_dev_alloc()	2023-01-18 11:40:53 +01:00
gcov	gcov: add support for checksum field	2023-01-18 11:41:42 +01:00
irq	irqdomain: Fix domain registration race	2023-03-17 08:32:49 +01:00
livepatch	livepatch: fix race between fork and KLP transition	2022-10-26 13:22:18 +02:00
locking	locking/lockdep: Avoid RCU-induced noinstr fail	2021-11-17 09:48:28 +01:00
power	PM: hibernate: Fix mistake in kerneldoc comment	2023-01-18 11:40:53 +01:00
printk	printk: fix return value of printk.devkmsg __setup handler	2022-04-15 14:18:08 +02:00
rcu	rcu: Suppress smp_processor_id() complaint in synchronize_rcu_expedited_wait()	2023-03-11 16:43:54 +01:00
sched	sched/fair: sanitize vruntime of entity being placed	2023-04-05 11:16:41 +02:00
time	timers: Prevent union confusion from unexpected restart_syscall()	2023-03-11 16:43:54 +01:00
trace	ftrace: Fix invalid address access in lookup_rec() when index is 0	2023-03-22 13:28:09 +01:00
.gitignore	kbuild: update config_data.gz only when the content of .config is changed	2021-05-11 14:04:16 +02:00
acct.c	acct: fix potential integer overflow in encode_comp_t()	2023-01-18 11:41:34 +01:00
async.c	Revert "module, async: async_synchronize_full() on module init iff async is used"	2022-02-23 11:59:56 +01:00
audit.c	audit: improve audit queue handling when "audit=1" on cmdline	2022-02-08 18:24:26 +01:00
audit.h	audit: log AUDIT_TIME_* records only from rules	2022-04-15 14:18:04 +02:00
audit_fsnotify.c	audit: fix potential double free on error path from fsnotify_add_inode_mark	2022-09-05 10:27:38 +02:00
audit_tree.c	audit: move put_tree() to avoid trim_trees refcount underflow and UAF	2021-09-03 10:08:16 +02:00
audit_watch.c	audit: CONFIG_CHANGE don't log internal bookkeeping as an event	2020-10-01 13:17:32 +02:00
auditfilter.c
auditsc.c	audit: log AUDIT_TIME_* records only from rules	2022-04-15 14:18:04 +02:00
backtracetest.c	treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()	2023-03-11 16:43:42 +01:00
bounds.c
capability.c
compat.c
configs.c
context_tracking.c
cpu.c	random: clear fast pool, crng, and batches in cpuhp bring up	2022-06-22 14:11:12 +02:00
cpu_pm.c
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
exec_domain.c
exit.c	exit: Use READ_ONCE() for all oops/warn limit reads	2023-02-06 07:52:50 +01:00
extable.c
fail_function.c	kernel/fail_function: fix memory leak with using debugfs_lookup()	2023-03-11 16:44:15 +01:00
fork.c	copy_process(): Move fd_install() out of sighand->siglock critical section	2022-02-23 12:00:00 +01:00
freezer.c
futex.c	mm, futex: fix shared futex pgoff on shmem huge page	2021-06-30 08:47:55 -04:00
gen_kheaders.sh	kbuild: add variables for compression tools	2020-09-03 11:27:10 +02:00
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms.c
kcmp.c	exec: Transform exec_update_mutex into a rw_semaphore	2021-01-09 13:44:55 +01:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec.c
kexec_core.c	kernel: kexec: remove the lock operation of system_transition_mutex	2021-02-03 23:25:56 +01:00
kexec_elf.c
kexec_file.c	kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]	2022-07-02 16:28:50 +02:00
kexec_internal.h
kheaders.c
kmod.c
kprobes.c	x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range	2023-03-11 16:44:02 +01:00
ksysfs.c
kthread.c	kthread: Fix PF_KTHREAD vs to_kthread() race	2021-09-12 08:56:39 +02:00
latencytop.c
Makefile	kbuild: update config_data.gz only when the content of .config is changed	2021-05-11 14:04:16 +02:00
module-internal.h
module.c	module: Don't wait for GOING modules	2023-02-06 07:52:43 +01:00
module_signature.c	module: harden ELF info handling	2021-04-07 14:47:38 +02:00
module_signing.c	module: harden ELF info handling	2021-04-07 14:47:38 +02:00
notifier.c	kernel/notifier.c: intercept duplicate registrations to avoid infinite loops	2020-10-01 13:17:23 +02:00
nsproxy.c
padata.c
panic.c	exit: Use READ_ONCE() for all oops/warn limit reads	2023-02-06 07:52:50 +01:00
params.c
pid.c
pid_namespace.c	memcg: enable accounting for pids in nested pid namespaces	2021-09-22 12:26:37 +02:00
profile.c	profiling: fix shift too large makes kernel panic	2022-08-25 11:18:02 +02:00
ptrace.c	ptrace: Reimplement PTRACE_KILL by always sending SIGKILL	2022-06-14 18:11:24 +02:00
range.c
reboot.c	reboot: fix overflow parsing reboot cpu number	2020-11-18 19:20:30 +01:00
relay.c	relay: fix type mismatch when allocating memory in relay_create_buf()	2023-01-18 11:40:58 +01:00
resource.c
rseq.c
seccomp.c	seccomp: Invalidate seccomp mode to catch death failures	2022-02-16 12:52:53 +01:00
signal.c	signal handling: don't use BUG_ON() for debugging	2022-07-21 20:59:27 +02:00
smp.c	smp: Fix offline cpu check in flush_smp_call_function_queue()	2022-04-20 09:19:39 +02:00
smpboot.c	kthread: Extract KTHREAD_IS_PER_CPU	2021-02-07 15:35:49 +01:00
smpboot.h
softirq.c
stackleak.c
stacktrace.c
stop_machine.c
sys.c	prlimit: do_prlimit needs to have a speculation check	2023-01-24 07:17:59 +01:00
sys_ni.c	kernel/sys_ni: add compat entry for fadvise64_64	2022-09-05 10:27:38 +02:00
sysctl-test.c	kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec()	2020-10-01 13:17:10 +02:00
sysctl.c	proc: proc_skip_spaces() shouldn't think it is working on C strings	2022-12-08 11:23:06 +01:00
sysctl_binary.c
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c	tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing	2021-07-14 16:53:08 +02:00
tsacct.c	taskstats: Cleanup the use of task->exit_code	2022-02-23 11:59:57 +01:00
ucount.c
uid16.c
uid16.h
umh.c	usermodehelper: reset umask to default before executing user process	2020-10-14 10:32:58 +02:00
up.c	smp: Fix smp_call_function_single_async prototype	2021-05-14 09:44:33 +02:00
user-return-notifier.c
user.c
user_namespace.c
utsname.c
utsname_sysctl.c
watchdog.c	watchdog: export lockup_detector_reconfigure	2022-08-25 11:18:37 +02:00
watchdog_hld.c
workqueue.c	workqueue: don't skip lockdep work dependency in cancel_work_sync()	2022-09-28 11:04:09 +02:00
workqueue_internal.h