On Sun, Dec 02, 2007 at 04:31:09AM +0800, rae l wrote: > --- > and I still have questions about this code: > 1. Why here kern_mount is needed? > Or the first time user space `mount -t sysfs` won't do that? > 2. If root executes many mounts to mount sysfs on /sys and many other places, > are there many instances of struct vfsmount those have only > mnt_mountpoint different? > > For most common case, mount a virtual filesystem(proc, sysfs, ...) on > multiple mounting point, > how to handle it more efficiently? > > and where is a detailed explaination on kern_mount? could someone give > some comments or documentation pointers on this?
See the patches that Eric Biederman just posted to lkml for why this structure is a static pointer this way right now, it's in preparation for future patches. Hope this helps, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
