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authorPaulo Alcantara2022-04-20 21:05:46 -0300
committerSteve French2022-04-20 22:54:39 -0500
commitcd70a3e8988a999c42d307d2616a5e7b6a33c7c8 (patch)
tree780c9c13af372e0e7baf42de0b1589d13c842198 /fs/cifs/connect.c
parent41f10081a92a0ed280008218a8ec18ad8ba0fceb (diff)
cifs: use correct lock type in cifs_reconnect()
TCP_Server_Info::origin_fullpath and TCP_Server_Info::leaf_fullpath are protected by refpath_lock mutex and not cifs_tcp_ses_lock spinlock. Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz> Cc: stable@vger.kernel.org Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/connect.c')
-rw-r--r--fs/cifs/connect.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 2c24d433061a..42e14f408856 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -534,12 +534,19 @@ int cifs_reconnect(struct TCP_Server_Info *server, bool mark_smb_session)
{
/* If tcp session is not an dfs connection, then reconnect to last target server */
spin_lock(&cifs_tcp_ses_lock);
- if (!server->is_dfs_conn || !server->origin_fullpath || !server->leaf_fullpath) {
+ if (!server->is_dfs_conn) {
spin_unlock(&cifs_tcp_ses_lock);
return __cifs_reconnect(server, mark_smb_session);
}
spin_unlock(&cifs_tcp_ses_lock);
+ mutex_lock(&server->refpath_lock);
+ if (!server->origin_fullpath || !server->leaf_fullpath) {
+ mutex_unlock(&server->refpath_lock);
+ return __cifs_reconnect(server, mark_smb_session);
+ }
+ mutex_unlock(&server->refpath_lock);
+
return reconnect_dfs_server(server);
}
#else