From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@mellanox.com>
Cc: Leon Romanovsky <leonro@mellanox.com>,
RDMA mailing list <linux-rdma@vger.kernel.org>,
Alex Vainman <alexv@mellanox.com>,
Artemy Kovalyov <artemyko@mellanox.com>,
Daniel Jurgens <danielj@mellanox.com>,
Eli Cohen <eli@mellanox.com>, Haggai Eran <haggaie@mellanox.com>,
Mark Zhang <markz@mellanox.com>, Moni Shoua <monis@mellanox.com>,
Parav Pandit <parav@mellanox.com>,
Sagi Grimberg <sagig@mellanox.com>,
Yishai Hadas <yishaih@mellanox.com>
Subject: [PATCH rdma-rc 01/10] RDMA/core: Annotate destroy of mutex to ensure that it is released as unlocked
Date: Tue, 23 Jul 2019 09:57:24 +0300 [thread overview]
Message-ID: <20190723065733.4899-2-leon@kernel.org> (raw)
In-Reply-To: <20190723065733.4899-1-leon@kernel.org>
From: Parav Pandit <parav@mellanox.com>
While compiled with CONFIG_DEBUG_MUTEXES, the kernel ensures that mutex
is not held during destroy.
Hence add mutex_destroy() for mutexes used in RDMA modules.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
drivers/infiniband/core/cache.c | 1 +
drivers/infiniband/core/cma_configfs.c | 8 +++++++-
drivers/infiniband/core/device.c | 3 +++
drivers/infiniband/core/user_mad.c | 2 +-
drivers/infiniband/core/uverbs_main.c | 4 ++++
drivers/infiniband/core/verbs.c | 1 +
6 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index 18e476b3ced0..00fb3eacda19 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -810,6 +810,7 @@ static void release_gid_table(struct ib_device *device,
if (leak)
return;
+ mutex_destroy(&table->lock);
kfree(table->data_vec);
kfree(table);
}
diff --git a/drivers/infiniband/core/cma_configfs.c b/drivers/infiniband/core/cma_configfs.c
index 3ec2c415bb70..8b0b5ae22e4c 100644
--- a/drivers/infiniband/core/cma_configfs.c
+++ b/drivers/infiniband/core/cma_configfs.c
@@ -342,12 +342,18 @@ static struct configfs_subsystem cma_subsys = {
int __init cma_configfs_init(void)
{
+ int ret;
+
config_group_init(&cma_subsys.su_group);
mutex_init(&cma_subsys.su_mutex);
- return configfs_register_subsystem(&cma_subsys);
+ ret = configfs_register_subsystem(&cma_subsys);
+ if (ret)
+ mutex_destroy(&cma_subsys.su_mutex);
+ return ret;
}
void __exit cma_configfs_exit(void)
{
configfs_unregister_subsystem(&cma_subsys);
+ mutex_destroy(&cma_subsys.su_mutex);
}
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index c56993e5e5ea..c3576c7d2e8f 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -497,6 +497,9 @@ static void ib_device_release(struct device *device)
rcu_head);
}
+ mutex_destroy(&dev->unregistration_lock);
+ mutex_destroy(&dev->compat_devs_mutex);
+
xa_destroy(&dev->compat_devs);
xa_destroy(&dev->client_data);
kfree_rcu(dev, rcu_head);
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
index 9f8a48016b41..e0512aef033c 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -1038,7 +1038,7 @@ static int ib_umad_close(struct inode *inode, struct file *filp)
ib_unregister_mad_agent(file->agent[i]);
mutex_unlock(&file->port->file_mutex);
-
+ mutex_destroy(&file->mutex);
kfree(file);
return 0;
}
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 11c13c1381cf..02b57240176c 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -120,6 +120,8 @@ static void ib_uverbs_release_dev(struct device *device)
uverbs_destroy_api(dev->uapi);
cleanup_srcu_struct(&dev->disassociate_srcu);
+ mutex_destroy(&dev->lists_mutex);
+ mutex_destroy(&dev->xrcd_tree_mutex);
kfree(dev);
}
@@ -212,6 +214,8 @@ void ib_uverbs_release_file(struct kref *ref)
if (file->disassociate_page)
__free_pages(file->disassociate_page, 0);
+ mutex_destroy(&file->umap_lock);
+ mutex_destroy(&file->ucontext_lock);
kfree(file);
}
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 92349bf37589..f974b6854224 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -2259,6 +2259,7 @@ int ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata)
if (ret)
return ret;
}
+ mutex_destroy(&xrcd->tgt_qp_mutex);
return xrcd->device->ops.dealloc_xrcd(xrcd, udata);
}
--
2.20.1
next prev parent reply other threads:[~2019-07-23 6:57 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-23 6:57 [PATCH rdma-rc 00/10] Collection of fixes for 5.3 Leon Romanovsky
2019-07-23 6:57 ` Leon Romanovsky [this message]
2019-07-23 6:57 ` [PATCH rdma-rc 02/10] IB/mlx5: Fix unreg_umr to ignore the mkey state Leon Romanovsky
2019-07-23 6:57 ` [PATCH rdma-rc 03/10] IB/mlx5: Use direct mkey destroy command upon UMR unreg failure Leon Romanovsky
2019-07-23 6:57 ` [PATCH rdma-rc 04/10] IB/mlx5: Fix unreg_umr to set a device PD Leon Romanovsky
2019-07-23 6:57 ` [PATCH rdma-rc 05/10] IB/mlx5: Fix clean_mr() to work in the expected order Leon Romanovsky
2019-07-23 6:57 ` [PATCH rdma-rc 06/10] IB/mlx5: Fix RSS Toeplitz function to be specification aligned Leon Romanovsky
2019-07-23 6:57 ` [PATCH rdma-rc 07/10] IB/mlx5: Prevent concurrent MR updates during invalidation Leon Romanovsky
2019-07-23 6:57 ` [PATCH rdma-rc 08/10] IB/mlx5: Avoid unnecessary typecast Leon Romanovsky
2019-07-23 6:57 ` [PATCH rdma-rc 09/10] IB/core: Fix querying total rdma stats Leon Romanovsky
2019-07-23 6:57 ` [PATCH rdma-rc 10/10] IB/counters: Initialize port counter and annotate mutex_destroy Leon Romanovsky
2019-07-25 14:32 ` Jason Gunthorpe
2019-07-25 15:13 ` [PATCH rdma-rc 00/10] Collection of fixes for 5.3 Jason Gunthorpe
2019-07-25 16:05 ` Parav Pandit
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