On Mon, Apr 28, 2008 at 02:38:25PM +0800, Ian Kent wrote: > > On Mon, 2008-04-28 at 07:22 +0100, Al Viro wrote: > > On Mon, Apr 28, 2008 at 02:14:54PM +0800, Ian Kent wrote: > > > > > > Hi Andrew, > > > > > > For autofs maps that recursively reference other map entries in their > > > mount point path we need to ensure that these mounts are performed > > > prior to the current mount request being done. We've used the access > > > system call, made just prior to performing the mount, to make this > > > happen. In the case of bind mounts, however, the lookup flags in > > > the path walk don't trigger a mount. To do this we need to also > > > trigger a mount when we see the LOOKUP_ACCESS flag. > > > > That's too fscking bad, since ->lookup() is about to lose access to > > nameidata *and* flags for anything but the last step. IOW, we'll need > > cleaner solution... > > Spell it out for me please! ->lookup() and friends are going to stop getting struct nameidata *. ->follow_link() obviously will keep it; ->d_revalidate() should lose the sucker, but we might have to split it in two methods (which is probably what'll be needed in your case). At the same time struct open_intent is going to die, BTW, but that won't matter for autofs, AFAICT. -- 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
