Hi all, On Fri, 18 Sep 2020 14:25:15 -0400 Qian Cai <cai@xxxxxxxxxx> wrote: > > On Thu, 2020-09-17 at 09:27 -0400, Qian Cai wrote: > > On Wed, 2020-09-16 at 10:35 +0300, Mike Rapoport wrote: > > > From: Mike Rapoport <rppt@xxxxxxxxxxxxx> > > > > > > This is an implementation of "secret" mappings backed by a file descriptor. > > > I've dropped the boot time reservation patch for now as it is not strictly > > > required for the basic usage and can be easily added later either with or > > > without CMA. > > > > On powerpc: https://gitlab.com/cailca/linux-mm/-/blob/master/powerpc.config > > > > There is a compiling warning from the today's linux-next: > > > > <stdin>:1532:2: warning: #warning syscall memfd_secret not implemented [-Wcpp] > > This should silence the warning: > > diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh > index a18b47695f55..b7609958ee36 100755 > --- a/scripts/checksyscalls.sh > +++ b/scripts/checksyscalls.sh > @@ -40,6 +40,10 @@ cat << EOF > #define __IGNORE_setrlimit /* setrlimit */ > #endif > > +#ifndef __ARCH_WANT_MEMFD_SECRET > +#define __IGNORE_memfd_secret > +#endif > + > /* Missing flags argument */ > #define __IGNORE_renameat /* renameat2 */ > Added to linux-next today. -- Cheers, Stephen Rothwell
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