linux/kernel/livepatch
Peter Zijlstra 676e8cf70c sched,livepatch: Untangle cond_resched() and live-patching
With the goal of deprecating / removing VOLUNTARY preempt, live-patch
needs to stop relying on cond_resched() to make forward progress.

Instead, rely on schedule() with TASK_FREEZABLE set. Just like
live-patching, the freezer needs to be able to stop tasks in a safe /
known state.

[bigeasy: use likely() in __klp_sched_try_switch() and update comments]

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Tested-by: Petr Mladek <pmladek@suse.com>
Tested-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20250509113659.wkP_HJ5z@linutronix.de
2025-05-14 13:16:24 +02:00
..
core.c Modules changes for 6.15-rc1 2025-03-30 15:44:36 -07:00
core.h
Kconfig
Makefile
patch.c livepatch: Rename KLP_* to KLP_TRANSITION_* 2024-05-09 15:48:01 +02:00
patch.h
shadow.c Documentation: livepatch: Add livepatch API page 2021-12-23 11:35:53 +01:00
state.c
state.h
transition.c sched,livepatch: Untangle cond_resched() and live-patching 2025-05-14 13:16:24 +02:00
transition.h