Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Read-Copy Update notifiers, initially RCU CPU stall notifier.
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* Separate from rcupdate.h to avoid #include loops.
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*
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* Copyright (C) 2023 Paul E. McKenney.
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*/
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#ifndef __LINUX_RCU_NOTIFIER_H
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#define __LINUX_RCU_NOTIFIER_H
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// Actions for RCU CPU stall notifier calls.
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#define RCU_STALL_NOTIFY_NORM 1
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#define RCU_STALL_NOTIFY_EXP 2
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#if defined(CONFIG_RCU_STALL_COMMON) && defined(CONFIG_RCU_CPU_STALL_NOTIFIER)
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#include <linux/notifier.h>
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#include <linux/types.h>
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int rcu_stall_chain_notifier_register(struct notifier_block *n);
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int rcu_stall_chain_notifier_unregister(struct notifier_block *n);
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#else // #if defined(CONFIG_RCU_STALL_COMMON) && defined(CONFIG_RCU_CPU_STALL_NOTIFIER)
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// No RCU CPU stall warnings in Tiny RCU.
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static inline int rcu_stall_chain_notifier_register(struct notifier_block *n) { return -EEXIST; }
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static inline int rcu_stall_chain_notifier_unregister(struct notifier_block *n) { return -ENOENT; }
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#endif // #else // #if defined(CONFIG_RCU_STALL_COMMON) && defined(CONFIG_RCU_CPU_STALL_NOTIFIER)
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#endif /* __LINUX_RCU_NOTIFIER_H */
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