cifs: fix DFS failover
In do_dfs_failover(), the mount_get_conns() function requires the full fs context in order to get new connection to server, so clone the original context and change it accordingly when retrying the DFS targets in the referral. If failover was successful, then update original context with the new UNC, prefix path and ip address. Signed-off-by: NPaulo Alcantara (SUSE) <pc@cjr.nz> Cc: stable@vger.kernel.org # 5.11 Signed-off-by: NSteve French <stfrench@microsoft.com>
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