Messages in this thread Patch in this message | | | From | Thomas Gleixner <> | Subject | [GIT pull] core/debugobjects for v5.15-rc1 | Date | Mon, 30 Aug 2021 12:44:41 +0200 (CEST) |
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Linus,
please pull the latest core/debugobjects branch from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core-debugobjects-2021-08-30
up to: 4bedcc28469a: debugobjects: Make them PREEMPT_RT aware
A single commit for debugobjects to make them work on PREEMPT_RT by preventing object pool refill in atomic contexts.
Thanks,
tglx
------------------> Thomas Gleixner (1): debugobjects: Make them PREEMPT_RT aware
lib/debugobjects.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/lib/debugobjects.c b/lib/debugobjects.c index 9e14ae02306b..6946f8e204e3 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -557,7 +557,12 @@ __debug_object_init(void *addr, const struct debug_obj_descr *descr, int onstack struct debug_obj *obj; unsigned long flags; - fill_pool(); + /* + * On RT enabled kernels the pool refill must happen in preemptible + * context: + */ + if (!IS_ENABLED(CONFIG_PREEMPT_RT) || preemptible()) + fill_pool(); db = get_bucket((unsigned long) addr);
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