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Amol Grover ab48c14a44 bpf, devmap: Pass lockdep expression to RCU lists 
commit 485ec2ea9c upstream.

head is traversed using hlist_for_each_entry_rcu outside an RCU
read-side critical section but under the protection of dtab->index_lock.

Hence, add corresponding lockdep expression to silence false-positive
lockdep warnings, and harden RCU lists.

Fixes: 6f9d451ab1 ("xdp: Add devmap_hash map type for looking up devices by hashed index")
Signed-off-by: Amol Grover <frextrite@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/20200123120437.26506-1-frextrite@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11 04:35:29 -08:00
..
bpf
bpf, devmap: Pass lockdep expression to RCU lists
2020-02-11 04:35:29 -08:00
cgroup
cgroup: Prevent double killing of css when enabling threaded cgroup
2020-02-05 21:22:42 +00:00
configs
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debug
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dma
dma-direct: don't check swiotlb=force in dma_direct_map_resource
2020-01-26 10:01:08 +01:00
events
perf: Correctly handle failed perf_get_aux_event()
2020-01-23 08:22:33 +01:00
gcov
Revert "um: Enable CONFIG_CONSTRUCTORS"
2020-02-01 09:34:53 +00:00
irq
irqdomain: Fix a memory leak in irq_domain_push_irq()
2020-02-11 04:35:14 -08:00
livepatch
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locking
locking/lockdep: Fix buffer overrun problem in stack_trace[]
2020-01-23 08:22:39 +01:00
power
PM: hibernate: fix crashes with init_on_free=1
2020-01-29 16:45:25 +01:00
printk
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rcu
rcu: Use READ_ONCE() for ->expmask in rcu_read_unlock_special()
2020-02-11 04:35:08 -08:00
sched
sched/cpufreq: Move the cfs_rq_util_change() call to cpufreq_update_util()
2020-01-26 10:01:08 +01:00
time
alarmtimer: Unregister wakeup source when module get fails
2020-02-11 04:35:20 -08:00
trace
ftrace: Protect ftrace_graph_hash with ftrace_sync
2020-02-11 04:35:28 -08:00
.gitignore
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acct.c
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async.c
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audit_fsnotify.c
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audit_tree.c
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audit_watch.c
audit_get_nd(): don't unlock parent too early
2019-11-10 11:56:55 -05:00
audit.c
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audit.h
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auditfilter.c
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auditsc.c
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backtracetest.c
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bounds.c
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capability.c
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compat.c
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configs.c
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context_tracking.c
…
cpu_pm.c
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cpu.c
cpu/SMT: Fix x86 link error without CONFIG_SYSFS
2020-01-23 08:22:36 +01:00
crash_core.c
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crash_dump.c
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cred.c
keys: Fix request_key() cache
2020-01-17 19:48:42 +01:00
delayacct.c
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dma.c
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elfcore.c
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exec_domain.c
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exit.c
exit: panic before exit_mm() on global init exit
2020-01-09 10:20:01 +01:00
extable.c
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fail_function.c
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fork.c
clone3: ensure copy_thread_tls is implemented
2020-01-14 20:08:35 +01:00
freezer.c
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futex.c
futex: Prevent exit livelock
2019-11-29 10:10:14 +01:00
gen_kheaders.sh
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groups.c
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hung_task.c
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iomem.c
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irq_work.c
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jump_label.c
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kallsyms.c
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kcmp.c
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Kconfig.freezer
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Kconfig.hz
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Kconfig.locks
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Kconfig.preempt
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kcov.c
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kexec_core.c
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kexec_elf.c
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kexec_file.c
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kexec_internal.h
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kexec.c
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kheaders.c
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kmod.c
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kprobes.c
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ksysfs.c
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kthread.c
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latencytop.c
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Makefile
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module_signature.c
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module_signing.c
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module-internal.h
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module.c
kernel/module.c: wakeup processes in module_wq on module unload
2020-01-09 10:20:02 +01:00
notifier.c
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nsproxy.c
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padata.c
crypto: pcrypt - Avoid deadlock by using per-instance padata queues
2020-02-11 04:35:28 -08:00
panic.c
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params.c
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pid_namespace.c
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pid.c
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profile.c
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ptrace.c
ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()
2020-01-23 08:22:36 +01:00
range.c
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reboot.c
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relay.c
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resource.c
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rseq.c
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seccomp.c
seccomp: Check that seccomp_notif is zeroed out by the user
2020-01-09 10:19:57 +01:00
signal.c
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smp.c
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smpboot.c
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smpboot.h
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softirq.c
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stackleak.c
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stacktrace.c
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stop_machine.c
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sys_ni.c
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sys.c
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sysctl_binary.c
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sysctl.c
kernel: sysctl: make drop_caches write-only
2020-01-04 19:18:32 +01:00
task_work.c
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taskstats.c
taskstats: fix data-race
2020-01-09 10:19:54 +01:00
test_kprobes.c
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torture.c
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tracepoint.c
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tsacct.c
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ucount.c
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uid16.c
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uid16.h
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umh.c
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up.c
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user_namespace.c
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user-return-notifier.c
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user.c
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utsname_sysctl.c
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utsname.c
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watchdog_hld.c
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watchdog.c
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workqueue_internal.h
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workqueue.c
workqueue: Add RCU annotation for pwq list walk
2020-01-26 10:01:07 +01:00