The branch main has been updated by mjg:
URL:
https://cgit.FreeBSD.org/src/commit/?id=5d8e32a66c1700323c570d25b03672f35f4e0110
commit 5d8e32a66c1700323c570d25b03672f35f4e0110
Author: Mateusz Guzik <m...@freebsd.org>
AuthorDate: 2021-09-18 08:14:35 +0000
Commit: Mateusz Guzik <m...@freebsd.org>
CommitDate: 2021-09-18 10:16:00 +0000
vfs: retire VNODE_REFCOUNT_FENCE_* macros
They are unused as of last year.
---
sys/kern/vfs_subr.c | 16 ----------------
1 file changed, 16 deletions(-)
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c
index 23f6ec9cf3fd..33a556fbfa2b 100644
--- a/sys/kern/vfs_subr.c
+++ b/sys/kern/vfs_subr.c
@@ -121,22 +121,6 @@ static int v_inval_buf_range_locked(struct vnode *vp,
struct bufobj *bo,
daddr_t startlbn, daddr_t endlbn);
static void vnlru_recalc(void);
-/*
- * These fences are intended for cases where some synchronization is
- * needed between access of v_iflags and lockless vnode refcount (v_holdcnt
- * and v_usecount) updates. Access to v_iflags is generally synchronized
- * by the interlock, but we have some internal assertions that check vnode
- * flags without acquiring the lock. Thus, these fences are INVARIANTS-only
- * for now.
- */
-#ifdef INVARIANTS
-#define VNODE_REFCOUNT_FENCE_ACQ() atomic_thread_fence_acq()
-#define VNODE_REFCOUNT_FENCE_REL() atomic_thread_fence_rel()
-#else
-#define VNODE_REFCOUNT_FENCE_ACQ()
-#define VNODE_REFCOUNT_FENCE_REL()
-#endif
-
/*
* Number of vnodes in existence. Increased whenever getnewvnode()
* allocates a new vnode, decreased in vdropl() for VIRF_DOOMED vnode.
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