git: 3beb43dd4f87 - main - callout: assert that callout_init_*lock* functions are called with a lock
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Date: Thu, 20 Jun 2024 17:53:52 UTC
The branch main has been updated by glebius:
URL: https://cgit.FreeBSD.org/src/commit/?id=3beb43dd4f87fee0a8f5536ad103664374f9b97b
commit 3beb43dd4f87fee0a8f5536ad103664374f9b97b
Author: Gleb Smirnoff <glebius@FreeBSD.org>
AuthorDate: 2024-06-20 17:53:31 +0000
Commit: Gleb Smirnoff <glebius@FreeBSD.org>
CommitDate: 2024-06-20 17:53:31 +0000
callout: assert that callout_init_*lock* functions are called with a lock
Quick grep around kernel confirms they all do.
---
sys/kern/kern_timeout.c | 5 ++---
sys/sys/callout.h | 9 +++------
2 files changed, 5 insertions(+), 9 deletions(-)
diff --git a/sys/kern/kern_timeout.c b/sys/kern/kern_timeout.c
index e06cf997ab8a..699a57d51f0e 100644
--- a/sys/kern/kern_timeout.c
+++ b/sys/kern/kern_timeout.c
@@ -1331,11 +1331,10 @@ callout_init(struct callout *c, int mpsafe)
void
_callout_init_lock(struct callout *c, struct lock_object *lock, int flags)
{
+ KASSERT(lock != NULL, ("%s: no lock", __func__));
KASSERT((flags & ~(CALLOUT_RETURNUNLOCKED | CALLOUT_SHAREDLOCK)) == 0,
("%s: bad flags %d", __func__, flags));
- KASSERT(lock != NULL || (flags & CALLOUT_RETURNUNLOCKED) == 0,
- ("%s: CALLOUT_RETURNUNLOCKED with no lock", __func__));
- KASSERT(lock == NULL || !(LOCK_CLASS(lock)->lc_flags & LC_SLEEPABLE),
+ KASSERT(!(LOCK_CLASS(lock)->lc_flags & LC_SLEEPABLE),
("%s: callout %p has sleepable lock", __func__, c));
*c = (struct callout ){
diff --git a/sys/sys/callout.h b/sys/sys/callout.h
index f2a5bf92ab46..5d0d896b5d3b 100644
--- a/sys/sys/callout.h
+++ b/sys/sys/callout.h
@@ -85,14 +85,11 @@
void callout_init(struct callout *, int);
void _callout_init_lock(struct callout *, struct lock_object *, int);
#define callout_init_mtx(c, mtx, flags) \
- _callout_init_lock((c), ((mtx) != NULL) ? &(mtx)->lock_object : \
- NULL, (flags))
+ _callout_init_lock((c), &(mtx)->lock_object, (flags))
#define callout_init_rm(c, rm, flags) \
- _callout_init_lock((c), ((rm) != NULL) ? &(rm)->lock_object : \
- NULL, (flags))
+ _callout_init_lock((c), &(rm)->lock_object, (flags))
#define callout_init_rw(c, rw, flags) \
- _callout_init_lock((c), ((rw) != NULL) ? &(rw)->lock_object : \
- NULL, (flags))
+ _callout_init_lock((c), &(rw)->lock_object, (flags))
#define callout_pending(c) ((c)->c_iflags & CALLOUT_PENDING)
int callout_reset_sbt_on(struct callout *, sbintime_t, sbintime_t,
void (*)(void *), void *, int, int);