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authorMatthew Wilcox (Oracle) <willy@infradead.org>2021-04-01 07:46:49 -0400
committerMatthew Wilcox (Oracle) <willy@infradead.org>2021-04-01 07:50:19 -0400
commit094ffbd1d8eaa27ed426feb8530cb1456348b018 (patch)
treee6b15a6235168d002fe515f9f5dd1754cdd2b149
parent703586410da69eb40062e64d413ca33bd735917a (diff)
idr test suite: Create anchor before launching throbber
The throbber could race with creation of the anchor entry and cause the IDR to have zero entries in it, which would cause the test to fail. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
-rw-r--r--tools/testing/radix-tree/idr-test.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c
index 4a9b451b7ba0..6ce7460f3c7a 100644
--- a/tools/testing/radix-tree/idr-test.c
+++ b/tools/testing/radix-tree/idr-test.c
@@ -301,11 +301,11 @@ void idr_find_test_1(int anchor_id, int throbber_id)
pthread_t throbber;
time_t start = time(NULL);
- pthread_create(&throbber, NULL, idr_throbber, &throbber_id);
-
BUG_ON(idr_alloc(&find_idr, xa_mk_value(anchor_id), anchor_id,
anchor_id + 1, GFP_KERNEL) != anchor_id);
+ pthread_create(&throbber, NULL, idr_throbber, &throbber_id);
+
rcu_read_lock();
do {
int id = 0;

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