• Miklos Szeredi's avatar
    [PATCH] FUSE: don't allow restarting of system calls · 7c352bdf
    Miklos Szeredi authored
    
    
    This patch removes ability to interrupt and restart operations while there
    hasn't been any side-effect.
    
    The reason: applications.  There are some apps it seems that generate
    signals at a fast rate.  This means, that if the operation cannot make
    enough progress between two signals, it will be restarted for ever.  This
    bug actually manifested itself with 'krusader' trying to open a file for
    writing under sshfs.  Thanks to Eduard Czimbalmos for the report.
    
    The problem can be solved just by making open() uninterruptible, because in
    this case it was the truncate operation that slowed down the progress.  But
    it's better to solve this by simply not allowing interrupts at all (except
    SIGKILL), because applications don't expect file operations to be
    interruptible anyway.  As an added bonus the code is simplified somewhat.
    Signed-off-by: default avatarMiklos Szeredi <miklos@szeredi.hu>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
    7c352bdf