diff options
| author | Mike Karels <karels@FreeBSD.org> | 2023-11-17 18:51:18 +0000 |
|---|---|---|
| committer | Mike Karels <karels@FreeBSD.org> | 2023-11-24 18:11:16 +0000 |
| commit | 3569e21f07147c8dd4bee82e5e7efe69c98edeb1 (patch) | |
| tree | dd4ec8e062adc94927bca5549c77cae30178b27e | |
| parent | 94bddd2ab75fd59fb25c7e162b3b335679bc518a (diff) | |
khelp: suppress useless warning message on shutdown
If a module (e.g. the ertt hhook for TCP) can't clean up at
shutdown, there is nothing to be done about it. In the ertt case,
cleanup is just shutting down a UMA zone, which doesn't need to be
done. Suppress EBUSY warnings on shutdown.
PR: 271677
Reviewed by: tuexen, imp
Differential Revision: https://reviews.freebsd.org/D42650
(cherry picked from commit 415c1c748d5492e41328fedf96b6bf3c9be94595)
| -rw-r--r-- | sys/kern/kern_khelp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/kern/kern_khelp.c b/sys/kern/kern_khelp.c index 3d75da141b48..f8a6f3e749da 100644 --- a/sys/kern/kern_khelp.c +++ b/sys/kern/kern_khelp.c @@ -357,7 +357,7 @@ khelp_modevent(module_t mod, int event_type, void *data) } else if (error == ENOENT) /* Do nothing and allow unload if helper not in list. */ error = 0; - else if (error == EBUSY) + else if (error == EBUSY && event_type != MOD_SHUTDOWN) printf("Khelp module \"%s\" can't unload until its " "refcount drops from %d to 0.\n", kmd->name, kmd->helper->h_refcount); |