On Wed, Sep 25, 2013 at 09:14:37PM +0100, Djalal Harouni wrote: > The f_cred field of the file struct contains the cred of current at > open time. This field can be used to get the context of open, and track > current's cred changes after. > > The procfs is one of those fs that need to track current cred changes > in order to implement proper permission checks on each system call. > > The procfs make use of seq_file struct and its iterators to step through > /proc objects. These iterators and seq_file helpers must be able to > access the file->f_cred to perform various permission checks at any > time. > > Therefor add the f_cred field to the seq_file struct and a helper > seq_f_cred() to return it. NAK. This is completely irrelevant for most of seq_file users and it simply does not belong in struct seq_file. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
