bcache: fix crash in bcache_btree_node_alloc_fail tracepoint

'b' was NULL. Change-Id: Icac0fd04afa2d23f213d96d51afd53374e6dd0c0

bcache: fix crash in bcache_btree_node_alloc_fail tracepoint
'b' was NULL. Change-Id: Icac0fd04afa2d23f213d96d51afd53374e6dd0c0
913dc33f · Slava Pestov · Kent Overstreet · 60ae81ee · 913dc33f · 913dc33f
Commit 913dc33f authored May 23, 2014 by Slava Pestov Committed by Kent Overstreet Aug 04, 2014
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Showing with 4 additions and 4 deletions

drivers/md/bcache/btree.c drivers/md/bcache/btree.c +1 -1

include/trace/events/bcache.h include/trace/events/bcache.h +3 -3

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--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1096,7 +1096,7 @@ struct btree *__bch_btree_node_alloc(struct cache_set *c, struct btree_op *op,
 err:
 	mutex_unlock(&c->bucket_lock);
-	trace_bcache_btree_node_alloc_fail(b);
+	trace_bcache_btree_node_alloc_fail(c);
 	return b;
 }

--- a/include/trace/events/bcache.h
+++ b/include/trace/events/bcache.h
@@ -261,9 +261,9 @@ DEFINE_EVENT(btree_node, bcache_btree_node_alloc,
 	TP_ARGS(b)
 );
-DEFINE_EVENT(btree_node, bcache_btree_node_alloc_fail,
+DEFINE_EVENT(cache_set, bcache_btree_node_alloc_fail,
-	TP_PROTO(struct btree *b),
+	TP_PROTO(struct cache_set *c),
-	TP_ARGS(b)
+	TP_ARGS(c)
 );
 DEFINE_EVENT(btree_node, bcache_btree_node_free,