On Fri, May 20, 2022 at 02:13:25PM +0000, Christophe Leroy wrote: > > > Le 19/05/2022 à 20:31, Chih-En Lin a écrit : > > Add CLONE_COW_PGTABLE flag to support clone3() system call to enable the > > Copy-On-Write (COW) mechanism on the page table. > > Is that really something we want the user to decide ? Isn't it an > internal stuff that should be transparent for users ? > > As far as I know, there is no way today to decide whether you want COW > or not for main memory. Why should there be a choice for the COW of page > tables ? Agree. It should not expose to the user. COW of page table should become the configuration. Or, if the change is fine, it can even be the default setting. Thanks. --- Sorry I did not group reply the first time.