linux-stable/arch/powerpc
Paul Mackerras 9ca980dce5 powerpc: Avoid extra indirect function call in sending IPIs
On many platforms (including pSeries), smp_ops->message_pass is always
smp_muxed_ipi_message_pass.  This changes arch/powerpc/kernel/smp.c so
that if smp_ops->message_pass is NULL, it calls smp_muxed_ipi_message_pass
directly.

This means that a platform doesn't need to set both .message_pass and
.cause_ipi, only one of them.  It is a slight performance improvement
in that it gets rid of an indirect function call at the expense of a
predictable conditional branch.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-06-20 11:21:32 +10:00
..
boot powerpc/4xx: Adding PCIe MSI support 2011-05-26 15:00:37 +10:00
configs cgroup: remove the ns_cgroup 2011-05-26 17:12:34 -07:00
include/asm powerpc: Fix early boot accounting of CPUs 2011-06-17 16:19:51 +10:00
kernel powerpc: Avoid extra indirect function call in sending IPIs 2011-06-20 11:21:32 +10:00
kvm Merge branch 'kvm-updates/2.6.40' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2011-05-23 08:42:08 -07:00
lib Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-05-20 13:28:01 -07:00
math-emu powerpc/85xx: Fix SPE float to integer conversion failure 2011-03-15 13:48:15 -05:00
mm powerpc/book3e: Clarify HW table walk enable/disable message 2011-06-17 16:19:51 +10:00
oprofile powerpc/oprofile: Handle events that raise an exception without overflowing 2011-05-26 13:38:57 +10:00
platforms powerpc: Avoid extra indirect function call in sending IPIs 2011-06-20 11:21:32 +10:00
sysdev Merge remote branch 'kumar/merge' into merge 2011-05-27 09:58:22 +10:00
xmon powerpc: Remove call sites of MSG_ALL_BUT_SELF 2011-05-19 14:30:46 +10:00
Kconfig arch: remove CONFIG_GENERIC_FIND_{NEXT_BIT,BIT_LE,LAST_BIT} 2011-05-26 17:12:38 -07:00
Kconfig.debug lib: consolidate DEBUG_STACK_USAGE option 2011-05-25 08:39:54 -07:00
Makefile powerpc: Fix typo in uImage target 2010-08-24 15:26:32 +10:00
relocs_check.pl