From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
Sasha Levin <sashal@kernel.org>,
linux-fsdevel@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 17/22] idr test suite: Create anchor before launching throbber
Date: Mon, 5 Apr 2021 12:04:26 -0400 [thread overview]
Message-ID: <20210405160432.268374-17-sashal@kernel.org> (raw)
In-Reply-To: <20210405160432.268374-1-sashal@kernel.org>
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
[ Upstream commit 094ffbd1d8eaa27ed426feb8530cb1456348b018 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/radix-tree/idr-test.c | 4 ++--
1 file 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;
--
2.30.2
next prev parent reply other threads:[~2021-04-05 16:06 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-05 16:04 [PATCH AUTOSEL 5.10 01/22] interconnect: core: fix error return code of icc_link_destroy() Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 02/22] gfs2: Flag a withdraw if init_threads() fails Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 03/22] KVM: arm64: Hide system instruction access to Trace registers Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 04/22] KVM: arm64: Disable guest access to trace filter controls Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 05/22] drm/imx: imx-ldb: fix out of bounds array access warning Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 06/22] gfs2: report "already frozen/thawed" errors Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 07/22] scsi: iscsi: Fix race condition between login and sync thread Sasha Levin
2021-04-06 17:24 ` Mike Christie
2021-04-06 19:22 ` Greg KH
2021-04-14 12:14 ` Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 08/22] ftrace: Check if pages were allocated before calling free_pages() Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 09/22] tools/kvm_stat: Add restart delay Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 10/22] drm/tegra: dc: Don't set PLL clock to 0Hz Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 11/22] gpu: host1x: Use different lock classes for each client Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 12/22] XArray: Fix splitting to non-zero orders Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 13/22] radix tree test suite: Fix compilation Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 14/22] block: only update parent bi_status when bio fail Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 15/22] radix tree test suite: Register the main thread with the RCU library Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 16/22] idr test suite: Take RCU read lock in idr_find_test_1 Sasha Levin
2021-04-05 16:04 ` Sasha Levin [this message]
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 18/22] null_blk: fix command timeout completion handling Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 19/22] io_uring: don't mark S_ISBLK async work as unbounded Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 20/22] riscv: evaluate put_user() arg before enabling user access Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 21/22] riscv,entry: fix misaligned base for excp_vect_table Sasha Levin
2021-04-05 16:04 ` [PATCH AUTOSEL 5.10 22/22] block: don't ignore REQ_NOWAIT for direct IO Sasha Levin
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