diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2026-06-03 17:00:06 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2026-06-03 17:00:06 +0200 |
| commit | 9fb628b4cd3488a36e3fc9b22bb840048aa1a9d2 (patch) | |
| tree | 393daf8614f7915c98eca753d79545aa7e9feb99 /lib/debugobjects.c | |
| parent | ffb83b98357658b44a8a3b617a42d7ae48514ffd (diff) | |
| parent | c114187c5dcf1a66a2910ec66a87d230d523e5c1 (diff) | |
Merge branch 'kvm-ghcb-for-7.2' into HEAD
Merge the final part of the GHCB 7.2 fixes at
https://lore.kernel.org/kvm/20260529183549.1104619-1-pbonzini@redhat.com/.
Patches 1-17 have already been included in Linux 7.1; these are minor
cleanups, and fixes for behaviors that are suboptimal or contradicting
the specification.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'lib/debugobjects.c')
| -rw-r--r-- | lib/debugobjects.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/lib/debugobjects.c b/lib/debugobjects.c index 12e2e42e6a31..b18a682fe3da 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -711,6 +711,15 @@ static struct debug_obj *lookup_object_or_alloc(void *addr, struct debug_bucket return NULL; } +static inline bool debug_objects_is_pi_blocked_on(void) +{ +#ifdef CONFIG_RT_MUTEXES + return current->pi_blocked_on != NULL; +#else + return false; +#endif +} + static void debug_objects_fill_pool(void) { if (!static_branch_likely(&obj_cache_enabled)) @@ -727,11 +736,12 @@ static void debug_objects_fill_pool(void) /* * On RT enabled kernels the pool refill must happen in preemptible - * context -- for !RT kernels we rely on the fact that spinlock_t and - * raw_spinlock_t are basically the same type and this lock-type - * inversion works just fine. + * context and not enqueued on an rt_mutex -- for !RT kernels we rely + * on the fact that spinlock_t and raw_spinlock_t are basically the + * same type and this lock-type inversion works just fine. */ - if (!IS_ENABLED(CONFIG_PREEMPT_RT) || preemptible() || system_state < SYSTEM_SCHEDULING) { + if (!IS_ENABLED(CONFIG_PREEMPT_RT) || system_state < SYSTEM_SCHEDULING || + (preemptible() && !debug_objects_is_pi_blocked_on())) { /* * Annotate away the spinlock_t inside raw_spinlock_t warning * by temporarily raising the wait-type to LD_WAIT_CONFIG, matching @@ -1212,7 +1222,7 @@ struct self_test { static __initconst const struct debug_obj_descr descr_type_test; -static bool __init is_static_object(void *addr) +static __noipa bool __init is_static_object(void *addr) { struct self_test *obj = addr; |