update kernel to 5.10.198

hc

2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf

 kernel/tools/testing/selftests/ftrace/ftracetest
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@@ -30,6 +30,9 @@
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 # kselftest skip code is 4
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 err_skip=4
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+# umount required
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+UMOUNT_DIR=""
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+
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 # cgroup RT scheduling prevents chrt commands from succeeding, which
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 # induces failures in test wakeup tests.  Disable for the duration of
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 # the tests.
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@@ -44,6 +47,9 @@
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 cleanup() {
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   echo $sched_rt_runtime_orig > $sched_rt_runtime
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+  if [ -n "${UMOUNT_DIR}" ]; then
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+    umount ${UMOUNT_DIR} ||:
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+  fi
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 }
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 errexit() { # message
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@@ -155,11 +161,13 @@
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 	    mount -t tracefs nodev /sys/kernel/tracing ||
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 	      errexit "Failed to mount /sys/kernel/tracing"
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 	    TRACING_DIR="/sys/kernel/tracing"
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+	    UMOUNT_DIR=${TRACING_DIR}
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 	# If debugfs exists, then so does /sys/kernel/debug
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 	elif [ -d "/sys/kernel/debug" ]; then
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 	    mount -t debugfs nodev /sys/kernel/debug ||
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 	      errexit "Failed to mount /sys/kernel/debug"
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 	    TRACING_DIR="/sys/kernel/debug/tracing"
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+	    UMOUNT_DIR=${TRACING_DIR}
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 	else
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 	    err_ret=$err_skip
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 	    errexit "debugfs and tracefs are not configured in this kernel"