Hello RT-list! I'm pleased to announce the 4.19.283-rt124 stable release. This is just an updating to the 4.19.283 stable release, no RT specific changes. You can get this release via the git tree at: git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git branch: v4.19-rt Head SHA1: 667d7f30ea873d10dc49365c95a387018da5961a Or to build 4.19.283-rt124 directly, the following patches should be applied: https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.19.tar.xz https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.19.283.xz https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patch-4.19.283-rt124.patch.xz Signing key fingerprint: 5BF6 7BC5 0826 72CA BB45 ACAE 587C 5ECA 5D0A 306C All keys used for the above files and repositories can be found on the following git repository: git://git.kernel.org/pub/scm/docs/kernel/pgpkeys.git Enjoy! Daniel Changes from v4.19.280-rt123: --- $ git diff 01355ace5b6eb7a7b153182438bb0667d682b284 v4.19.283 v4.19.280-rt123 diff --cc lib/debugobjects.c index 5f23d896df55,e28481c402ae..e486693aea49 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@@ -421,55 -368,6 +421,55 @@@ static void debug_object_is_on_stack(vo WARN_ON(1); } +static struct debug_obj *lookup_object_or_alloc(void *addr, struct debug_bucket *b, + struct debug_obj_descr *descr, + bool onstack, bool alloc_ifstatic) +{ + struct debug_obj *obj = lookup_object(addr, b); + enum debug_obj_state state = ODEBUG_STATE_NONE; + + if (likely(obj)) + return obj; + + /* + * debug_object_init() unconditionally allocates untracked + * objects. It does not matter whether it is a static object or + * not. + * + * debug_object_assert_init() and debug_object_activate() allow + * allocation only if the descriptor callback confirms that the + * object is static and considered initialized. For non-static + * objects the allocation needs to be done from the fixup callback. + */ + if (unlikely(alloc_ifstatic)) { + if (!descr->is_static_object || !descr->is_static_object(addr)) + return ERR_PTR(-ENOENT); + /* Statically allocated objects are considered initialized */ + state = ODEBUG_STATE_INIT; + } + + obj = alloc_object(addr, b, descr); + if (likely(obj)) { + obj->state = state; + debug_object_is_on_stack(addr, onstack); + return obj; + } + + /* Out of memory. Do the cleanup outside of the locked region */ + debug_objects_enabled = 0; + return NULL; +} + +static void debug_objects_fill_pool(void) +{ + /* + * On RT enabled kernels the pool refill must happen in preemptible + * context: + */ - if (!IS_ENABLED(CONFIG_PREEMPT_RT) || preemptible()) ++ if (!IS_ENABLED(CONFIG_PREEMPT_RT_FULL) || preemptible()) + fill_pool(); +} + static void __debug_object_init(void *addr, struct debug_obj_descr *descr, int onstack) {
