The branch main has been updated by mjg:
URL:
https://cgit.FreeBSD.org/src/commit/?id=a2cb65b8fe975a8f228258e3057b62e068dbf8e2
commit a2cb65b8fe975a8f228258e3057b62e068dbf8e2
Author: Mateusz Guzik <m...@freebsd.org>
AuthorDate: 2021-09-18 08:30:15 +0000
Commit: Mateusz Guzik <m...@freebsd.org>
CommitDate: 2021-09-18 10:16:50 +0000
cache: count vnodes in cache_purgevfs
---
sys/kern/vfs_cache.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/sys/kern/vfs_cache.c b/sys/kern/vfs_cache.c
index 732dbbe53cef..3c79395f5d92 100644
--- a/sys/kern/vfs_cache.c
+++ b/sys/kern/vfs_cache.c
@@ -237,7 +237,7 @@ SDT_PROBE_DEFINE2(vfs, namecache, removecnp, hit, "struct
vnode *",
"struct componentname *");
SDT_PROBE_DEFINE2(vfs, namecache, removecnp, miss, "struct vnode *",
"struct componentname *");
-SDT_PROBE_DEFINE1(vfs, namecache, purge, done, "struct vnode *");
+SDT_PROBE_DEFINE3(vfs, namecache, purge, done, "struct vnode *", "size_t",
"size_t");
SDT_PROBE_DEFINE1(vfs, namecache, purge, batch, "int");
SDT_PROBE_DEFINE1(vfs, namecache, purge_negative, done, "struct vnode *");
SDT_PROBE_DEFINE1(vfs, namecache, purgevfs, done, "struct mount *");
@@ -3012,13 +3012,15 @@ void
cache_purgevfs(struct mount *mp)
{
struct vnode *vp, *mvp;
+ size_t visited, purged;
- SDT_PROBE1(vfs, namecache, purgevfs, done, mp);
+ visited = purged = 0;
/*
* Somewhat wasteful iteration over all vnodes. Would be better to
* support filtering and avoid the interlock to begin with.
*/
MNT_VNODE_FOREACH_ALL(vp, mp, mvp) {
+ visited++;
if (!cache_has_entries(vp)) {
VI_UNLOCK(vp);
continue;
@@ -3026,8 +3028,11 @@ cache_purgevfs(struct mount *mp)
vholdl(vp);
VI_UNLOCK(vp);
cache_purge(vp);
+ purged++;
vdrop(vp);
}
+
+ SDT_PROBE3(vfs, namecache, purgevfs, done, mp, visited, purged);
}
/*
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