----- On Jun 5, 2018, at 1:18 AM, Michael Ellerman mpe@xxxxxxxxxxxxxx wrote: > Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> writes: > >> From: Boqun Feng <boqun.feng@xxxxxxxxx> >> >> 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.feng@xxxxxxxxx> >> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> >> CC: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> >> CC: Paul Mackerras <paulus@xxxxxxxxx> >> CC: Michael Ellerman <mpe@xxxxxxxxxxxxxx> >> CC: Peter Zijlstra <peterz@xxxxxxxxxxxxx> >> CC: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx> >> CC: linuxppc-dev@xxxxxxxxxxxxxxxx >> --- >> 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 <mpe@xxxxxxxxxxxxxx> (powerpc) Added your ack to the series, thanks! Mathieu -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
