On Wed, Sep 25, 2024 at 09:40:31PM +0800, Nanyong Sun wrote: > On 2024/9/25 20:18, Matthew Wilcox wrote: > > > On Wed, Sep 25, 2024 at 03:05:17AM -0700, Andrew Morton wrote: > > > +++ a/include/linux/mm_types.h > > > @@ -1499,4 +1499,85 @@ enum { > > > /* See also internal only FOLL flags in mm/internal.h */ > > > }; > > > +/* mm flags */ > > > + > > > +/* core dumpable occupy bit0 and bit1 */ > > ... but why is that important? > /* > * The first two bits represent core dump modes for set-user-ID, > * the modes are SUID_DUMP_* defined in linux/sched/coredump.h > */ > Do you think if change it to this will be OK? That seems reasonable.