• Ian Kent's avatar
    [PATCH] autofs4: post expire race fix · cc9acc88
    Ian Kent authored
    At the tail end of an expire it's possible for a process to enter
    autofs4_wait, with a waitq type of NFY_NONE but find that the expire is
    finished.  In this cause autofs4_wait will try to create a new wait but not
    notify the daemon leading to a hang.  As the wait type is meant to delay mount
    requests from revalidate or lookup during an expire and the expire is done all
    we need to do is check if the dentry is a mountpoint.  If it's not then we're
    done.
    Signed-off-by: default avatarIan Kent <raven@themaw.net>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
    cc9acc88
waitq.c 7.72 KB