In sys_faccessat you temporarily allocate a cred object which is discarded in the end. With a few more macro definitions you could create a dup_cred variant which initialized an automatic variable of type struct cred. This way the kmalloc/kfree pair would fall away.
access is actually used frequently. For instance, ld.so uses it on every startup as a quicker possibility to check for a file which usually doesn't exist. So, speeding up access has some small effect on performance. The resulting code might actually reduce the kernel size a bit due to all the checks and calls which go away. - 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/
