afs: Add a tracepoint to track the lifetime of the afs_volume struct

Add a tracepoint to track the lifetime of the afs_volume struct.

Signed-off-by: David Howells <dhowells@redhat.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/fs/afs/vl_alias.c b/fs/afs/vl_alias.c
index ac7a59e951ed..c61dd9410202 100644
--- a/fs/afs/vl_alias.c
+++ b/fs/afs/vl_alias.c
@@ -193,7 +193,8 @@ static int afs_query_for_alias_one(struct afs_cell *cell, struct key *key,
 	read_lock(&p->proc_lock);
 	if (!list_empty(&p->proc_volumes))
 		pvol = afs_get_volume(list_first_entry(&p->proc_volumes,
-						       struct afs_volume, proc_link));
+						       struct afs_volume, proc_link),
+				      afs_volume_trace_get_query_alias);
 	read_unlock(&p->proc_lock);
 	if (!pvol)
 		return 0;
@@ -203,7 +204,7 @@ static int afs_query_for_alias_one(struct afs_cell *cell, struct key *key,
 	/* And see if it's in the new cell. */
 	volume = afs_sample_volume(cell, key, pvol->name, pvol->name_len);
 	if (IS_ERR(volume)) {
-		afs_put_volume(cell->net, pvol);
+		afs_put_volume(cell->net, pvol, afs_volume_trace_put_query_alias);
 		if (PTR_ERR(volume) != -ENOMEDIUM)
 			return PTR_ERR(volume);
 		/* That volume is not in the new cell, so not an alias */
@@ -221,8 +222,8 @@ static int afs_query_for_alias_one(struct afs_cell *cell, struct key *key,
 		rcu_read_unlock();
 	}
 
-	afs_put_volume(cell->net, volume);
-	afs_put_volume(cell->net, pvol);
+	afs_put_volume(cell->net, volume, afs_volume_trace_put_query_alias);
+	afs_put_volume(cell->net, pvol, afs_volume_trace_put_query_alias);
 	return ret;
 }