mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-08-09 06:14:34 +02:00
Zicheng QuandTejun Heo
b565a73bae
scx_show_state.py still reads scx_aborting and scx_bypass_depth as global symbols. Those symbols no longer exist after the state was moved into struct scx_sched, so the drgn script fails when it reaches either field. Read aborting and bypass_depth from scx_root instead. This preserves the script's current root-scheduler view: with sub-scheduler support, the reported values are for the root scheduler and sub-schedulers are not enumerated. Fixes:5c8d98a1b4("sched_ext: Move bypass state into scx_sched") Fixes:c1743da43c("sched_ext: Move aborting flag to per-scheduler field") Signed-off-by: Zicheng Qu <quzicheng@huawei.com> Reviewed-by: Andrea Righi <arighi@nvidia.com> Signed-off-by: Tejun Heo <tj@kernel.org>
52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
#!/usr/bin/env drgn
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#
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# Copyright (C) 2024 Tejun Heo <tj@kernel.org>
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# Copyright (C) 2024 Meta Platforms, Inc. and affiliates.
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desc = """
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This is a drgn script to show the current sched_ext state.
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For more info on drgn, visit https://github.com/osandov/drgn.
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"""
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import drgn
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import sys
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def err(s):
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print(s, file=sys.stderr, flush=True)
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sys.exit(1)
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def read_int(name):
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return int(prog[name].value_())
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def read_atomic(name):
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return prog[name].counter.value_()
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def read_static_key(name):
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return prog[name].key.enabled.counter.value_()
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def state_str(state):
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return prog['scx_enable_state_str'][state].string_().decode()
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def read_root_ops_name():
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if root:
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return root.ops.name.string_().decode()
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return ''
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def read_root_field(name, default):
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if root:
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return getattr(root, name).value_()
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return default
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root = prog['scx_root']
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enable_state = read_atomic("scx_enable_state_var")
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print(f'ops : {read_root_ops_name()}')
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print(f'enabled : {read_static_key("__scx_enabled")}')
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print(f'switching_all : {read_int("scx_switching_all")}')
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print(f'switched_all : {read_static_key("__scx_switched_all")}')
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print(f'enable_state : {state_str(enable_state)} ({enable_state})')
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print(f'aborting : {read_root_field("aborting", False)}')
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print(f'bypass_depth : {read_root_field("bypass_depth", 0)}')
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print(f'nr_rejected : {read_atomic("scx_nr_rejected")}')
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print(f'enable_seq : {read_atomic("scx_enable_seq")}')
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