On Fri, Aug 13, 2010 at 03:49:04PM +0200, Miklos Szeredi wrote: > On Sun, 8 Aug 2010, Valerie Aurora wrote: > > Implement unioned directories, whiteouts, and fallthrus in pathname > > lookup routines. do_lookup() and lookup_hash() call lookup_union() > > after looking up the dentry from the top-level file system. > > lookup_union() is centered around __lookup_hash(), which does cached > > and/or real lookups and revalidates each dentry in the union stack. > > > > XXX - implement negative union cache entries > > > > XXX - handle different permissions on directories > > If process doing the lookup doesn't have write permission on the top > level directory then the lookup will fail. This is not intended, is > it? Does it fail? I'm not checking permissions before calling ->fallthru(). But I can't test this because the code doesn't set the owner of the copied up directory correctly. :) Don't bother doing any permission testing on this version - it's known buggy and I will fix it in the next release. Thanks, -VAL -- 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
