Author: mjg
Date: Tue Jan 7 15:42:01 2020
New Revision: 356439
URL: https://svnweb.freebsd.org/changeset/base/356439
Log:
vfs: use a dedicated counter for free vnode recycling
Otherwise vlrureclaim activitity is mixed in and it is hard to tell which
vnodes got reclaimed.
Modified:
head/sys/kern/vfs_subr.c
Modified: head/sys/kern/vfs_subr.c
==============================================================================
--- head/sys/kern/vfs_subr.c Tue Jan 7 09:02:14 2020 (r356438)
+++ head/sys/kern/vfs_subr.c Tue Jan 7 15:42:01 2020 (r356439)
@@ -204,6 +204,10 @@ static counter_u64_t recycles_count;
SYSCTL_COUNTER_U64(_vfs, OID_AUTO, recycles, CTLFLAG_RD, &recycles_count,
"Number of vnodes recycled to meet vnode cache targets");
+static counter_u64_t recycles_free_count;
+SYSCTL_COUNTER_U64(_vfs, OID_AUTO, recycles_free, CTLFLAG_RD,
&recycles_free_count,
+ "Number of free vnodes recycled to meet vnode cache targets");
+
/*
* Various variables used for debugging the new implementation of
* reassignbuf().
@@ -603,6 +607,7 @@ vntblinit(void *dummy __unused)
vnodes_created = counter_u64_alloc(M_WAITOK);
recycles_count = counter_u64_alloc(M_WAITOK);
+ recycles_free_count = counter_u64_alloc(M_WAITOK);
free_owe_inact = counter_u64_alloc(M_WAITOK);
/*
@@ -1466,7 +1471,7 @@ vtryrecycle(struct vnode *vp)
return (EBUSY);
}
if (!VN_IS_DOOMED(vp)) {
- counter_u64_add(recycles_count, 1);
+ counter_u64_add(recycles_free_count, 1);
vgonel(vp);
}
VOP_UNLOCK(vp);
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