Pavel Tikhomirov 690e939da7 tracing: Fix event filters and triggers to handle negative numbers ... commit 6a072128d2 upstream. Then tracing syscall exit event it is extremely useful to filter exit codes equal to some negative value, to react only to required errors. But negative numbers does not work: [root@snorch sys_exit_read]# echo "ret == -1" > filter bash: echo: write error: Invalid argument [root@snorch sys_exit_read]# cat filter ret == -1 ^ parse_error: Invalid value (did you forget quotes)? Similar thing happens when setting triggers. These is a regression in v4.17 introduced by the commit mentioned below, testing without these commit shows no problem with negative numbers. Link: http://lkml.kernel.org/r/20180823102534.7642-1-ptikhomirov@virtuozzo.com Cc: stable@vger.kernel.org Fixes: 80765597bc ("tracing: Rewrite filter logic to be simpler and faster") Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-03-10 07:17:20 +01:00
..
bpf	bpf: zero out build_id for BPF_STACK_BUILD_ID_IP	2019-02-27 10:08:56 +01:00
cgroup	cgroup: fix parsing empty mount option string	2019-02-12 19:47:17 +01:00
configs
debug	kdb: Don't back trace on a cpu that didn't round up	2019-02-12 19:47:19 +01:00
dma	dma-direct: do not include SME mask in the DMA supported check	2019-01-13 09:51:05 +01:00
events	perf/x86: Add check_period PMU callback	2019-02-20 10:25:45 +01:00
gcov
irq	genirq: Make sure the initial affinity is not empty	2019-03-05 17:58:47 +01:00
livepatch	Merge branch 'for-4.19/upstream' into for-linus	2018-08-20 18:33:50 +02:00
locking	locking/rwsem: Fix (possible) missed wakeup	2019-03-05 17:58:49 +01:00
power	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2018-10-12 12:35:02 +02:00
printk	printk: Fix panic caused by passing log_buf_len to command line	2018-11-13 11:08:48 -08:00
rcu	srcu: Lock srcu_data structure in srcu_gp_start()	2019-01-13 09:51:06 +01:00
sched	sched/wake_q: Fix wakeup ordering for wake_q	2019-03-05 17:58:49 +01:00
time	timekeeping: Use proper seqcount initializer	2019-02-12 19:47:05 +01:00
trace	tracing: Fix event filters and triggers to handle negative numbers	2019-03-10 07:17:20 +01:00
.gitignore
acct.c
async.c
audit_fsnotify.c
audit_tree.c	\n	2018-08-17 09:41:28 -07:00
audit_watch.c
audit.c
audit.h
auditfilter.c
auditsc.c	audit/stable-4.18 PR 20180814	2018-08-15 10:46:54 -07:00
backtracetest.c
bounds.c	kbuild: fix kernel/bounds.c 'W=1' warning	2018-11-13 11:08:47 -08:00
capability.c
compat.c
configs.c
context_tracking.c
cpu_pm.c
cpu.c	cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM	2019-02-12 19:47:25 +01:00
crash_core.c	kernel/crash_core.c: print timestamp using time64_t	2018-08-22 10:52:47 -07:00
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	sched/wait: Fix rcuwait_wake_up() ordering	2019-03-05 17:58:49 +01:00
extable.c
fail_function.c
fork.c	fork: record start_time late	2019-01-13 09:51:04 +01:00
freezer.c
futex_compat.c
futex.c	futex: Fix (possible) missed wakeup	2019-03-05 17:58:49 +01:00
groups.c
hung_task.c	kernel/hung_task.c: force console verbose before panic	2019-02-12 19:47:19 +01:00
iomem.c
irq_work.c
jump_label.c	jump_label: Fix typo in warning message	2018-09-10 10:15:48 +02:00
kallsyms.c	kallsyms, x86: Export addresses of PTI entry trampolines	2018-08-14 19:12:29 -03:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kernel/kcov.c: mark write_comp_data() as notrace	2019-02-12 19:47:20 +01:00
kexec_core.c
kexec_file.c
kexec_internal.h
kexec.c
kmod.c
kprobes.c	kprobes: Return error if we fail to reuse kprobe instead of BUG_ON()	2018-11-13 11:08:28 -08:00
ksysfs.c
kthread.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-08-13 11:25:07 -07:00
latencytop.c
Makefile
memremap.c	mm, devm_memremap_pages: add MEMORY_DEVICE_PRIVATE support	2019-01-13 09:51:04 +01:00
module_signing.c
module-internal.h
module.c	kobject: return error code if writing /sys/.../uevent fails	2019-02-12 19:47:06 +01:00
notifier.c
nsproxy.c
padata.c
panic.c	panic: avoid deadlocks in re-entrant console drivers	2018-12-29 13:37:57 +01:00
params.c
pid_namespace.c
pid.c	Fix failure path in alloc_pid()	2019-01-13 09:51:06 +01:00
profile.c
ptrace.c	ptrace: Remove unused ptrace_may_access_sched() and MODE_IBRS	2018-12-05 19:32:03 +01:00
range.c
reboot.c
relay.c
resource.c
rseq.c
seccomp.c
signal.c	signal: Restore the stop PTRACE_EVENT_EXIT	2019-02-20 10:25:48 +01:00
smp.c	cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM	2019-02-12 19:47:25 +01:00
smpboot.c
smpboot.h
softirq.c
stacktrace.c
stop_machine.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-08-13 11:25:07 -07:00
sys_ni.c
sys.c	kernel/sys.c: remove duplicated include	2018-09-20 22:01:11 +02:00
sysctl_binary.c
sysctl.c	proc/sysctl: fix return error for proc_doulongvec_minmax()	2019-02-12 19:47:19 +01:00
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c	tracepoint: Fix tracepoint array element size mismatch	2018-10-17 15:35:29 -04:00
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c
up.c
user_namespace.c	userns: also map extents in the reverse map to kernel IDs	2018-11-13 11:09:00 -08:00
user-return-notifier.c
user.c	userns: use irqsave variant of refcount_dec_and_lock()	2018-08-22 10:52:47 -07:00
utsname_sysctl.c
utsname.c
watchdog_hld.c	watchdog: Mark watchdog touch functions as notrace	2018-08-30 12:56:40 +02:00
watchdog.c	watchdog: Mark watchdog touch functions as notrace	2018-08-30 12:56:40 +02:00
workqueue_internal.h
workqueue.c	watchdog: Mark watchdog touch functions as notrace	2018-08-30 12:56:40 +02:00