Re: [PATCH 02/12] arm: nommu: use pgtable-nopud instead of 4level-fixup

On Wed, Oct 23, 2019 at 12:28:51PM +0300, Mike Rapoport wrote: > From: Mike Rapoport > > The generic nommu implementation of page table manipulation takes care of > folding of the upper levels and does not require fixups. > > Simply replace of include/asm-generic/4level-fixup.h with >

Re: [PATCH v5 3/3] locking/rwsem: Optimize down_read_trylock()

On Fri, Mar 22, 2019 at 10:30:08AM -0400, Waiman Long wrote: > Modify __down_read_trylock() to optimize for an unlocked rwsem and make > it generate slightly better code. > > Before this patch, down_read_trylock: > >0x <+0>: callq 0x5 >0x0005 <+5>:

Re: [PATCH v2 07/29] ARM: add kexec_file_load system call number

On Fri, Jan 25, 2019 at 03:43:59PM +, Catalin Marinas wrote: > On Fri, Jan 18, 2019 at 05:18:13PM +0100, Arnd Bergmann wrote: > > diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl > > index 86de9eb34296..20ed7e026723 100644 > > --- a/arch/arm/tools/syscall.tbl > > +++

Re: [PATCH v2 29/29] y2038: add 64-bit time_t syscalls to all 32-bit architectures

On Fri, Jan 18, 2019 at 11:53:25AM -0800, Andy Lutomirski wrote: > On Fri, Jan 18, 2019 at 11:33 AM Arnd Bergmann wrote: > > > > On Fri, Jan 18, 2019 at 7:50 PM Andy Lutomirski wrote: > > > On Fri, Jan 18, 2019 at 8:25 AM Arnd Bergmann wrote: > > > > - Once we get to 512, we clash with the x32

Re: [PATCH 15/15] arch: add pkey and rseq syscall numbers everywhere

On Thu, Jan 10, 2019 at 05:24:35PM +0100, Arnd Bergmann wrote: > Most architectures define system call numbers for the rseq and pkey system > calls, even when they don't support the features, and perhaps never will. > > Only a few architectures are missing these, so just define them anyway > for