On Thu, Oct 01, 2009 at 12:20:17PM +0900, Toshiyuki Okajima wrote:
> I am recognizing it. But I think I have already explained its answer as follows:
> - A print mechanism has already been included at mount time.
It's true that some file systems already are printing a message at
mount time; but when we abstract up something to the VFS layer, that's
also an opportunity to remove some kernel printk's from some
filesystems, including ext2/3/4 at the same time this feature is
introduced.
> > filesystem specific information, but that could be handled via a new
> > method function in struct super_ops:
> >
> > mount_msg(struct super *sb, char *buf, int buflen)
> >
Note that what I was assuming is that we would is something like this
in the VFS mount code:
printk(KERN_INFO "Device %s mounted file system type %s read-%s%s\n",
sb->s_sid, sb->s_type->name,
sb->s_flags & MS_RDONLY ? "only" : "write",
sb->s_op->mount_msg ? sb->s_op->mount_msg(sb) : "");
The advantage of this is that we would now have a single consistent
kernel message for all file systems, with some room for file system
specific message.
- Ted
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