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    cifs: reinstate sharing of SMB sessions sans races · 14fbf50d
    Jeff Layton 提交于
    We do this by abandoning the global list of SMB sessions and instead
    moving to a per-server list. This entails adding a new list head to the
    TCP_Server_Info struct. The refcounting for the cifsSesInfo is moved to
    a non-atomic variable. We have to protect it by a lock anyway, so there's
    no benefit to making it an atomic. The list and refcount are protected
    by the global cifs_tcp_ses_lock.
    
    The patch also adds a new routines to find and put SMB sessions and
    that properly take and put references under the lock.
    Signed-off-by: NJeff Layton <jlayton@redhat.com>
    Signed-off-by: NSteve French <sfrench@us.ibm.com>
    14fbf50d
cifsglob.h 21.8 KB