----- On Jun 5, 2018, at 1:18 AM, Michael Ellerman m...@ellerman.id.au wrote:
> Mathieu Desnoyers <mathieu.desnoy...@efficios.com> writes: > >> From: Boqun Feng <boqun.f...@gmail.com> >> >> Wire up the rseq system call on powerpc. >> >> This provides an ABI improving the speed of a user-space getcpu >> operation on powerpc by skipping the getcpu system call on the fast >> path, as well as improving the speed of user-space operations on per-cpu >> data compared to using load-reservation/store-conditional atomics. >> >> Signed-off-by: Boqun Feng <boqun.f...@gmail.com> >> Signed-off-by: Mathieu Desnoyers <mathieu.desnoy...@efficios.com> >> CC: Benjamin Herrenschmidt <b...@kernel.crashing.org> >> CC: Paul Mackerras <pau...@samba.org> >> CC: Michael Ellerman <m...@ellerman.id.au> >> CC: Peter Zijlstra <pet...@infradead.org> >> CC: "Paul E. McKenney" <paul...@linux.vnet.ibm.com> >> CC: linuxppc-dev@lists.ozlabs.org >> --- >> arch/powerpc/include/asm/systbl.h | 1 + >> arch/powerpc/include/asm/unistd.h | 2 +- >> arch/powerpc/include/uapi/asm/unistd.h | 1 + >> 3 files changed, 3 insertions(+), 1 deletion(-) > > Looks fine to me. > > I don't have any other new syscalls in my next, so this should not > conflict with anything for 4.18. > > Acked-by: Michael Ellerman <m...@ellerman.id.au> (powerpc) Added your ack to the series, thanks! Mathieu -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com
