[PATCH v2 0/3] livepatch,sched: Add livepatch task switching to cond_resched()

From: Josh Poimboeuf
Date: Fri Feb 17 2023 - 17:23:06 EST


v2:
- Avoid calling klp_cond_resched_disable() in klp_cancel_transition()
- Fix race in klp_reverse_transition()

Fix patching stalls caused by busy kthreads.

Josh Poimboeuf (3):
livepatch: Skip task_call_func() for current task
livepatch,sched: Add livepatch task switching to cond_resched()
vhost: Fix livepatch timeouts in vhost_worker()

drivers/vhost/vhost.c | 3 +-
include/linux/livepatch.h | 1 +
include/linux/livepatch_sched.h | 29 ++++++++++++
include/linux/sched.h | 20 ++++++--
kernel/livepatch/transition.c | 84 ++++++++++++++++++++++++++++-----
kernel/sched/core.c | 64 +++++++++++++++++++++----
6 files changed, 174 insertions(+), 27 deletions(-)
create mode 100644 include/linux/livepatch_sched.h

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2.39.1