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authorAlexander Aring <aahringo@redhat.com>2021-03-01 17:05:11 -0500
committerDavid Teigland <teigland@redhat.com>2021-03-09 08:56:42 -0600
commite9a470acd930574be812663708dfad6f6f94d80a (patch)
tree8d3f51ccb65ae06f0c0aff7a5338fae34e47fc77 /fs/dlm/lowcomms.c
parentb30a624f50d9b637ffe9ef3cf4c53abd5bc607d1 (diff)
downloadlinux-e9a470acd930574be812663708dfad6f6f94d80a.tar.gz
fs: dlm: set subclass for othercon sock_mutex
This patch sets the lockdep subclass for the othercon socket mutex. In various places the connection socket mutex is held while locking the othercon socket mutex. This patch will remove lockdep warnings when such case occurs. Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/lowcomms.c')
-rw-r--r--fs/dlm/lowcomms.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index f169e35d19f42..ca9bf54b94a98 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -934,13 +934,14 @@ static int accept_from_sock(struct listen_connection *con)
goto accept_err;
}
+ lockdep_set_subclass(&othercon->sock_mutex, 1);
newcon->othercon = othercon;
} else {
/* close other sock con if we have something new */
close_connection(othercon, false, true, false);
}
- mutex_lock_nested(&othercon->sock_mutex, 1);
+ mutex_lock(&othercon->sock_mutex);
add_sock(newsock, othercon);
addcon = othercon;
mutex_unlock(&othercon->sock_mutex);