• Al Viro's avatar
    don't bugger nd->seq on set_root_rcu() from follow_dotdot_rcu() · 7bd88377
    Al Viro authored
    return the value instead, and have path_init() do the assignment.  Broken by
    "vfs: Fix absolute RCU path walk failures due to uninitialized seq number",
    which was Cc-stable with 2.6.38+ as destination.  This one should go where
    it went.
    
    To avoid dummy value returned in case when root is already set (it would do
    no harm, actually, since the only caller that doesn't ignore the return value
    is guaranteed to have nd->root *not* set, but it's more obvious that way),
    lift the check into callers.  And do the same to set_root(), to keep them
    in sync.
    
    Cc: stable@vger.kernel.org # 2.6.38+
    Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    7bd88377
namei.c 111 KB