Odin Ugedal
8adfb5fe9c
sched/fair: Fix CFS bandwidth hrtimer expiry type ...
[ Upstream commit 72d0ad7cb5bad265adb2014dbe46c4ccb11afaba ]
The time remaining until expiry of the refresh_timer can be negative.
Casting the type to an unsigned 64-bit value will cause integer
underflow, making the runtime_refresh_within return false instead of
true. These situations are rare, but they do happen.
This does not cause user-facing issues or errors; other than
possibly unthrottling cfs_rq's using runtime from the previous period(s),
making the CFS bandwidth enforcement less strict in those (special)
situations.
Signed-off-by: Odin Ugedal <odin@uged.al>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ben Segall <bsegall@google.com>
Link: https://lore.kernel.org/r/20210629121452.18429-1-odin@uged.al
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-28 09:14:25 +02:00
bpf: Check for integer overflow when using roundup_pow_of_two()
2021-02-23 13:59:16 +01:00
config: android: enable CONFIG_SECCOMP
2016-10-11 15:06:32 -07:00
kdb: Make memory allocations more robust
2021-03-03 17:44:31 +01:00
perf: Fix data race between pin_count increment/decrement
2021-06-16 11:36:35 +02:00
gcov: add support for GCC 10.1
2020-09-23 08:46:14 +02:00
genirq: Disable interrupts for force threaded handlers
2021-03-24 10:59:26 +01:00
livepatch/module: make TAINT_LIVEPATCH module-specific
2016-08-26 14:42:08 +02:00
futex: Handle early deadlock return correctly
2021-03-30 14:41:42 +02:00
PM: hibernate: remove the bogus call to get_gendisk() in software_resume()
2020-10-29 09:05:43 +01:00
printk: fix deadlock when kernel panic
2021-03-07 11:25:56 +01:00
rcuperf: Fix cleanup path for invalid perf_type strings
2019-05-31 06:48:30 -07:00
sched/fair: Fix CFS bandwidth hrtimer expiry type
2021-07-28 09:14:25 +02:00
kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()
2021-03-24 10:59:25 +01:00
tracing: Do not reference char * as a string in histograms
2021-07-20 16:21:11 +02:00
kernel/acct.c: fix the acct->needcheck check in check_free_space()
2018-01-10 09:29:51 +01:00
kernel/async.c: revert "async: simplify lowest_in_progress()"
2018-02-17 13:21:18 +01:00
audit: fix a net reference leak in audit_list_rules_send()
2021-04-07 12:05:41 +02:00
audit: fix a net reference leak in audit_list_rules_send()
2021-04-07 12:05:41 +02:00
audit: CONFIG_CHANGE don't log internal bookkeeping as an event
2020-10-01 20:40:07 +02:00
audit: fix a net reference leak in audit_list_rules_send()
2021-04-07 12:05:41 +02:00
audit: print empty EXECVE args
2019-11-28 18:28:55 +01:00
kbuild: fix kernel/bounds.c 'W=1' warning
2018-11-13 11:16:57 -08:00
ptrace: Capture the ptracer's creds not PT_PTRACE_CAP
2017-01-06 10:40:13 +01:00
cgroup1: don't allow '\n' in renaming
2021-06-16 11:36:34 +02:00
cgroup: pids: use atomic64_t for pids->limit
2019-12-21 10:42:02 +01:00
kernel/cpu: add arch override for clear_tasks_mm_cpumask() mm handling
2020-12-29 13:44:50 +01:00
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-06-20 10:24:21 +02:00
sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs
2017-10-12 11:51:25 +02:00
memcg: account security cred as well to kmemcg
2020-01-12 11:24:13 +01:00
futex: Mark the begin of futex exit explicitly
2021-02-03 23:19:49 +01:00
kernel/extable.c: mark core_kernel_text notrace
2017-07-21 07:42:21 +02:00
futex: Split futex_mm_release() for exit/exec
2021-02-03 23:19:49 +01:00
freezer, oom: check TIF_MEMDIE on the correct task
2016-07-28 16:07:41 -07:00
mm, futex: fix shared futex pgoff on shmem huge page
2021-07-11 12:46:40 +02:00
kernel: make groups_sort calling a responsibility group_info allocators
2018-01-10 09:29:52 +01:00
kernel: hung_task.c: disable on suspend
2019-04-20 09:07:52 +02:00
jump_label: Invoke jump_label_test() via early_initcall()
2017-12-14 09:28:24 +01:00
kcov: ensure irq code sees a valid area
2018-08-03 07:55:12 +02:00
kexec: allow architectures to override boot mapping
2016-08-02 19:35:27 -04:00
objtool, x86: Add several functions and files to the objtool whitelist
2018-06-05 10:28:57 +02:00
kernel: kexec_file: fix error return code of kexec_calculate_store_digests()
2021-05-22 10:40:31 +02:00
usermodehelper: reset umask to default before executing user process
2020-10-14 09:48:14 +02:00
kretprobe: Avoid re-registration of the same kretprobe earlier
2021-02-10 09:09:25 +01:00
kexec: add a kexec_crash_loaded() function
2016-08-02 19:35:30 -04:00
kthread: prevent deadlock when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync()
2021-07-11 12:46:41 +02:00
elfcore: fix building with clang
2021-02-10 09:09:25 +01:00
Fix: Disable sys_membarrier when nohz_full is enabled
2017-03-12 06:41:45 +01:00
mm, devm_memremap_pages: kill mapping "System RAM" support
2019-01-13 10:03:51 +01:00
module: Ignore _GLOBAL_OFFSET_TABLE_ when warning for undefined symbols
2021-03-03 17:44:44 +01:00
x86/mm: split vmalloc_sync_all()
2020-04-02 17:20:26 +02:00
padata: purge get_cpu and reorder_via_wq from padata_do_serial
2020-05-27 16:41:53 +02:00
panic: ensure preemption is disabled during panic()
2019-10-17 13:42:25 -07:00
pidns: disable pid allocation if pid_ns_prepare_proc() is failed in alloc_pid()
2018-04-13 19:47:53 +02:00
signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig
2019-08-04 09:33:16 +02:00
profile: Convert to hotplug state machine
2016-07-15 10:41:42 +02:00
ptrace: make ptrace() fail if the tracee changed its pid unexpectedly
2021-05-26 11:29:06 +02:00
reboot: fix overflow parsing reboot cpu number
2020-11-18 18:26:32 +01:00
kernel/relay.c: fix memleak on destroy relay channel
2020-08-26 10:29:03 +02:00
resource: fix integer overflow at reallocation
2018-04-24 09:34:09 +02:00
seccomp: Add missing return in non-void function
2021-03-03 17:44:43 +01:00
signal: Extend exec_id to 64bits
2020-04-24 07:58:54 +02:00
cpu/hotplug: Fix SMT supported evaluation
2018-08-15 18:14:53 +02:00
kthread/smpboot: do not park in kthread_create_on_cpu()
2016-10-11 15:06:33 -07:00
Mark HI and TASKLET softirq synchronous
2018-08-15 18:14:42 +02:00
stacktrace, lockdep: Fix address, newline ugliness
2017-02-14 15:25:42 -08:00
stop_machine: Use raw spinlocks
2018-08-03 07:55:24 +02:00
kernel/sys.c: avoid copying possible padding bytes in copy_to_user
2020-10-01 20:40:04 +02:00
x86/pkeys: Fix pkeys build breakage for some non-x86 arches
2016-09-13 14:41:36 +02:00
sched/rt: Show the 'sched_rr_timeslice' SCHED_RR timeslice tuning knob in milliseconds
2020-07-09 09:35:55 +02:00
task_work: use READ_ONCE/lockless_dereference, avoid pi_lock if !task_works
2016-08-02 19:35:02 -04:00
taskstats: fix data-race
2020-01-12 11:24:12 +01:00
torture: Convert torture_shutdown() to hrtimer
2016-08-22 10:01:49 -07:00
tracepoint: Do not fail unregistering a probe due to memory failure
2021-03-03 17:44:38 +01:00
kernel/ucount.c: mark user_header with kmemleak_ignore()
2017-06-17 06:41:51 +02:00
kernel: make groups_sort calling a responsibility group_info allocators
2018-01-10 09:29:52 +01:00
smp: Add function to execute a function synchronously on a CPU
2016-09-05 13:52:39 +02:00
userns: move user access out of the mutex
2018-09-09 20:01:24 +02:00
Merge branch 'nsfs-ioctls' into HEAD
2016-09-22 20:00:36 -05:00
sys: don't hold uts_sem while accessing userspace memory
2018-09-09 20:01:24 +02:00
kernel/watchdog: prevent false hardlockup on overloaded system
2017-06-17 06:41:57 +02:00
kernel/watchdog: prevent false hardlockup on overloaded system
2017-06-17 06:41:57 +02:00
wq: handle VM suspension in stall detection
2021-06-16 11:36:33 +02:00
workqueue: Fix NULL pointer dereference
2017-11-15 15:53:17 +01:00
8adfb5fe9c