On Mon, Sep 05, 2011 at 10:53:58PM +0400, Vasiliy Kulikov wrote: ... > > +static int pid_no_revalidate(struct dentry *dentry, struct nameidata *nd) > +{ > + if (nd && nd->flags & LOOKUP_RCU) > + return -ECHILD; > + > + d_drop(dentry); > + return 0; > +} > + Thanks Vasiliy! So every lookup will cause dcache to drop previous cached entry and alloc and hash new one instead, pretty dramatic, espec in case of huge number of files mapped ;) Still since it's not time critical operation (at least for now) I tend to agree. Cyrill -- 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