CONFIG_HAVE_RCU_USER_QS:

General informations

The Linux kernel configuration item CONFIG_HAVE_RCU_USER_QS:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/Kconfig
• found in Linux kernels: 3.7

Help text

Provide kernel entry/exit hooks necessary for userspace RCU extended quiescent state. Syscalls need to be wrapped inside rcu_user_exit()-rcu_user_enter() through the slow path using TIF_NOHZ flag. Exceptions handlers must be wrapped as well. Irqs are already protected inside rcu_irq_enter/rcu_irq_exit() but preemption or signal handling on irq exit still need to be protected.

Hardware

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Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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