Re: [PATCH RFC v3 1/2] mm: Add personality flag to limit address to 47 bits

2024-09-12 Thread Charlie Jenkins
On Wed, Sep 11, 2024 at 07:25:08AM +, Arnd Bergmann wrote: > On Wed, Sep 11, 2024, at 00:45, Charlie Jenkins wrote: > > On Tue, Sep 10, 2024 at 03:08:14PM -0400, Liam R. Howlett wrote: > > > > I responded to Arnd in the other thread, but I am still not convinced > > that the solution that x86 a

Re: [PATCH RFC v3 1/2] mm: Add personality flag to limit address to 47 bits

2024-09-12 Thread Catalin Marinas
On Wed, Sep 11, 2024 at 11:18:12PM -0700, Charlie Jenkins wrote: > Opting-in to the higher address space is reasonable. However, it is not > my preference, because the purpose of this flag is to ensure that > allocations do not exceed 47-bits, so it is a clearer ABI to have the > applications that

Re: [PATCH RFC v3 1/2] mm: Add personality flag to limit address to 47 bits

2024-09-12 Thread Charlie Jenkins
On Thu, Sep 12, 2024 at 11:53:49AM +0100, Catalin Marinas wrote: > On Wed, Sep 11, 2024 at 11:18:12PM -0700, Charlie Jenkins wrote: > > Opting-in to the higher address space is reasonable. However, it is not > > my preference, because the purpose of this flag is to ensure that > > allocations do no