From: Eric Dumazet <[EMAIL PROTECTED]> Date: Tue, 31 Oct 2006 19:48:48 +0100
> We currently insert sockets/pipes dentries into the global dentry > hashtable. This is *useless* because there is currently no way > these entries can be used for a lookup(). (/proc/xxx/fd/xxx uses a > different mechanism) It turns out that while procfs uses a different "mechanism", those procfs symlinks do point to the real socket dentry, so when you readlink() on it you do d_path() on the real socket dentry. If you unhash these things, I'm pretty sure you'll see an ugly "(deleted)" at the end of the symlink string for /proc/$pid/fd/$X files that are sockets or something like that. Al Viro just suggested a way around this to me: 1) Just mark the dentry HASHED by hand in the dentry flags, but don't actually hash it. 2) Create a special dentry->d_deleted method for sockets that returns 0 and clears by hand the HASHED flag bit in the dentry (see what dput() does when this happens). It's an abuse but it will work. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
