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1 // SPDX-License-Identifier: GPL-2.0-only
3 * Context tracking: Probe on high level context boundaries such as kernel
13 * Many thanks to Gilad Ben-Yossef, Paul McKenney, Ingo Molnar, Andrew Morton,
54 * context_tracking_enter - Inform the context tracking that the CPU is going
59 * instructions to execute won't use any RCU read side critical section
65 WARN_ON_ONCE(!current->mm); in __context_tracking_enter()
75 * any RCU read-side critical section until the next call to in __context_tracking_enter()
135 * context_tracking_exit - Inform the context tracking that the CPU is
139 * guest space before any use of RCU read side critical section. This
140 * potentially include any high level kernel code like syscalls, exceptions,
143 * This call supports re-entrancy. This way it can be called from any exception