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| author | Brooks Davis <brooks@FreeBSD.org> | 2023-01-20 18:03:39 +0000 |
|---|---|---|
| committer | Brooks Davis <brooks@FreeBSD.org> | 2023-01-20 18:04:40 +0000 |
| commit | fa1d803c0f652d72840a3c59139baf9d30792860 (patch) | |
| tree | 216260be45f25d6b6fb2145075c4b5146a8f232a | |
| parent | cf57f20edcf9c75f0f9f1ac1c44729184970b9d9 (diff) | |
| download | src-fa1d803c0f652d72840a3c59139baf9d30792860.tar.gz src-fa1d803c0f652d72840a3c59139baf9d30792860.zip | |
epoch: replace hand coded assertion
The assertion is equivalent to kstack_contains() so use that rather
than spelling it out.
Suggested by: jhb
Reviewed by: jhb
MFC after: 1 week
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D38107
| -rw-r--r-- | sys/kern/subr_epoch.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/sys/kern/subr_epoch.c b/sys/kern/subr_epoch.c index 100221cd62f9..98a560e44c9d 100644 --- a/sys/kern/subr_epoch.c +++ b/sys/kern/subr_epoch.c @@ -468,9 +468,7 @@ _epoch_enter_preempt(epoch_t epoch, epoch_tracker_t et EPOCH_FILE_LINE) MPASS(cold || epoch != NULL); td = curthread; - MPASS((vm_offset_t)et >= td->td_kstack && - (vm_offset_t)et + sizeof(struct epoch_tracker) <= - td->td_kstack + td->td_kstack_pages * PAGE_SIZE); + MPASS(kstack_contains(td, (vm_offset_t)et, sizeof(*et))); INIT_CHECK(epoch); MPASS(epoch->e_flags & EPOCH_PREEMPT); |