• Miklos Szeredi's avatar
    [PATCH] fuse: add connection aborting · 69a53bf2
    Miklos Szeredi authored
    
    
    Add ability to abort a filesystem connection.
    
    With the introduction of asynchronous reads, the ability to interrupt any
    request is not enough to dissolve deadlocks, since now waiting for the request
    completion (page unlocked) is independent of the actual request, so in a
    deadlock all threads will be uninterruptible.
    
    The solution is to make it possible to abort all requests, even those
    currently undergoing I/O to/from userspace.  The natural interface for this is
    'mount -f mountpoint', but that only works as long as the filesystem is
    attached.  So also add an 'abort' attribute to the sysfs view of the
    connection.
    Signed-off-by: default avatarMiklos Szeredi <miklos@szeredi.hu>
    Cc: Greg KH <greg@kroah.com>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
    69a53bf2