linux-stable/kernel
Yang Jihong f596da3efa blktrace: Fix output non-blktrace event when blk_classic option enabled
When the blk_classic option is enabled, non-blktrace events must be
filtered out. Otherwise, events of other types are output in the blktrace
classic format, which is unexpected.

The problem can be triggered in the following ways:

  # echo 1 > /sys/kernel/debug/tracing/options/blk_classic
  # echo 1 > /sys/kernel/debug/tracing/events/enable
  # echo blk > /sys/kernel/debug/tracing/current_tracer
  # cat /sys/kernel/debug/tracing/trace_pipe

Fixes: c71a896154 ("blktrace: add ftrace plugin")
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Link: https://lore.kernel.org/r/20221122040410.85113-1-yangjihong1@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-12-08 09:26:11 -07:00
..
bpf
cgroup Revert "blk-cgroup: Flush stats at blkgs destruction path" 2022-11-30 08:25:46 -07:00
configs
debug
dma
entry
events
futex
gcov
irq
kcsan
livepatch
locking
module
power
printk
rcu
sched wait: Return number of exclusive waiters awaken 2022-11-16 11:33:03 -07:00
time
trace blktrace: Fix output non-blktrace event when blk_classic option enabled 2022-12-08 09:26:11 -07:00
.gitignore
acct.c
async.c
audit.c
audit.h
audit_fsnotify.c
audit_tree.c
audit_watch.c
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c
cfi.c
compat.c
configs.c
context_tracking.c
cpu.c
cpu_pm.c
crash_core.c
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signal.c
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softirq.c
stackleak.c
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sys.c
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utsname_sysctl.c kernel/utsname_sysctl.c: Fix hostname polling 2022-10-23 12:01:01 -07:00
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