JFIF$        dd7 

Viewing File: /usr/lib/python3.9/site-packages/tuned/plugins/plugin_sysfs.py

from . import base
import glob
import re
import os.path
from .decorators import *
import tuned.logs
import tuned.consts as consts
from subprocess import *
from tuned.utils.commands import commands

log = tuned.logs.get()

class SysfsPlugin(base.Plugin):
	"""
	Sets various `sysfs` settings specified by the plug-in options.

	The syntax is `_name_=_value_`, where
	`_name_` is the `sysfs` path to use and `_value_` is
	the value to write. The `sysfs` path supports the shell-style
	wildcard characters (see `man 7 glob` for additional detail).

	Use this plugin in case you need to change some settings that are
	not covered by other plug-ins. Prefer specific plug-ins if they
	cover the required settings.

	.Ignore corrected errors and associated scans that cause latency spikes
	====
	----
	[sysfs]
	/sys/devices/system/machinecheck/machinecheck*/ignore_ce=1
	----
	====
	"""

	# TODO: resolve possible conflicts with sysctl settings from other plugins

	def __init__(self, *args, **kwargs):
		super(SysfsPlugin, self).__init__(*args, **kwargs)
		self._has_dynamic_options = True
		self._cmd = commands()

	def _instance_init(self, instance):
		instance._has_dynamic_tuning = False
		instance._has_static_tuning = True

		instance._sysfs = dict([(os.path.normpath(key_value[0]), key_value[1]) for key_value in list(instance.options.items())])
		instance._sysfs_original = {}

	def _instance_cleanup(self, instance):
		pass

	def _instance_apply_static(self, instance):
		for key, value in list(instance._sysfs.items()):
			v = self._variables.expand(value)
			for f in glob.iglob(key):
				if self._check_sysfs(f):
					instance._sysfs_original[f] = self._read_sysfs(f)
					self._write_sysfs(f, v)
				else:
					log.error("rejecting write to '%s' (not inside /sys)" % f)

	def _instance_verify_static(self, instance, ignore_missing, devices):
		ret = True
		for key, value in list(instance._sysfs.items()):
			v = self._variables.expand(value)
			for f in glob.iglob(key):
				if self._check_sysfs(f):
					curr_val = self._read_sysfs(f)
					if self._verify_value(f, v, curr_val, ignore_missing) == False:
						ret = False
		return ret

	def _instance_unapply_static(self, instance, rollback = consts.ROLLBACK_SOFT):
		for key, value in list(instance._sysfs_original.items()):
			self._write_sysfs(key, value)

	def _check_sysfs(self, sysfs_file):
		return re.match(r"^/sys/.*", sysfs_file)

	def _read_sysfs(self, sysfs_file):
		data = self._cmd.read_file(sysfs_file).strip()
		if len(data) > 0:
			return self._cmd.get_active_option(data, False)
		else:
			return None

	def _write_sysfs(self, sysfs_file, value):
		return self._cmd.write_to_file(sysfs_file, value, ignore_same=True)
Back to Directory  nL+D550H?Mx ,D"v]qv;6*Zqn)ZP0!1 A "#a$2Qr D8 a Ri[f\mIykIw0cuFcRı?lO7к_f˓[C$殷WF<_W ԣsKcëIzyQy/_LKℂ;C",pFA:/]=H  ~,ls/9ć:[=/#f;)x{ٛEQ )~ =𘙲r*2~ a _V=' kumFD}KYYC)({ *g&f`툪ry`=^cJ.I](*`wq1dđ#̩͑0;H]u搂@:~וKL Nsh}OIR*8:2 !lDJVo(3=M(zȰ+i*NAr6KnSl)!JJӁ* %݉?|D}d5:eP0R;{$X'xF@.ÊB {,WJuQɲRI;9QE琯62fT.DUJ;*cP A\ILNj!J۱+O\͔]ޒS߼Jȧc%ANolՎprULZԛerE2=XDXgVQeӓk yP7U*omQIs,K`)6\G3t?pgjrmۛجwluGtfh9uyP0D;Uڽ"OXlif$)&|ML0Zrm1[HXPlPR0'G=i2N+0e2]]9VTPO׮7h(F*癈'=QVZDF,d߬~TX G[`le69CR(!S2!P <0x<!1AQ "Raq02Br#SCTb ?Ζ"]mH5WR7k.ۛ!}Q~+yԏz|@T20S~Kek *zFf^2X*(@8r?CIuI|֓>^ExLgNUY+{.RѪ τV׸YTD I62'8Y27'\TP.6d&˦@Vqi|8-OΕ]ʔ U=TL8=;6c| !qfF3aů&~$l}'NWUs$Uk^SV:U# 6w++s&r+nڐ{@29 gL u"TÙM=6(^"7r}=6YݾlCuhquympǦ GjhsǜNlɻ}o7#S6aw4!OSrD57%|?x>L |/nD6?/8w#[)L7+6〼T ATg!%5MmZ/c-{1_Je"|^$'O&ޱմTrb$w)R$& N1EtdU3Uȉ1pM"N*(DNyd96.(jQ)X 5cQɎMyW?Q*!R>6=7)Xj5`J]e8%t!+'!1Q5 !1 AQaqё#2"0BRb?Gt^## .llQT $v,,m㵜5ubV =sY+@d{N! dnO<.-B;_wJt6;QJd.Qc%p{ 1,sNDdFHI0ГoXшe黅XۢF:)[FGXƹ/w_cMeD,ʡcc.WDtA$j@:) -# u c1<@ۗ9F)KJ-hpP]_x[qBlbpʖw q"LFGdƶ*s+ډ_Zc"?%t[IP 6J]#=ɺVvvCGsGh1 >)6|ey?Lӣm,4GWUi`]uJVoVDG< SB6ϏQ@ TiUlyOU0kfV~~}SZ@*WUUi##; s/[=!7}"WN]'(L! ~y5g9T̅JkbM' +s:S +B)v@Mj e Cf jE 0Y\QnzG1д~Wo{T9?`Rmyhsy3!HAD]mc1~2LSu7xT;j$`}4->L#vzŏILS ֭T{rjGKC;bpU=-`BsK.SFw4Mq]ZdHS0)tLg