Heiko Carstens 4bffbb3455 s390/mm: have 16 byte aligned struct pages ... Select HAVE_ALIGNED_STRUCT_PAGE on s390, so that the slub allocator can make use of compare and swap double for lockless updates. This increases the size of struct page to 64 bytes (instead of 56 bytes), however the performance gain justifies the increased size: - now excactly four struct pages fit into a single cache line; the case that accessing a struct page causes two cache line loads does not exist anymore. - calculating the offset of a struct page within the memmap array is only a simple shift instead of a more expensive multiplication. A "hackbench 200 process 200" run on a 32 cpu system did show an 8% runtime improvement. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2012-11-13 11:03:09 +01:00
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appldata	s390/vtimer: rework virtual timer interface	2012-07-20 11:15:08 +02:00
boot	s390: fix linker script for 31 bit builds	2012-10-18 17:50:10 +02:00
crypto	crypto: arch/s390 - cleanup - remove unneeded cra_list initialization	2012-08-01 17:47:29 +08:00
hypfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
include	s390/topology: fix core id vs physical package id mix-up	2012-11-12 16:24:38 +01:00
kernel	s390/topology: fix core id vs physical package id mix-up	2012-11-12 16:24:38 +01:00
kvm	KVM updates for the 3.7 merge window	2012-10-04 09:30:33 -07:00
lib	s390/mm: use pmd_large() instead of pmd_huge()	2012-10-26 16:44:23 +02:00
math-emu	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
mm	s390/gup: fix access_ok() usage in __get_user_pages_fast()	2012-11-13 11:02:28 +01:00
net	s390/bpf,jit: add support for BPF_S_ANC_ALU_XOR_X instruction	2012-09-26 15:45:28 +02:00
oprofile	oprofile, s390: Fix uninitialized memory access when writing to oprofilefs	2012-08-27 14:49:23 +02:00
defconfig	s390: update defconfig	2012-09-26 15:45:29 +02:00
Kbuild	s390/bpf,jit: BPF Just In Time compiler for s390	2012-09-26 15:44:49 +02:00
Kconfig	s390/mm: have 16 byte aligned struct pages	2012-11-13 11:03:09 +01:00
Kconfig.debug	s390/mm: add page table dumper	2012-10-09 14:16:58 +02:00
Makefile	s390: Use generic init_task	2012-05-05 13:00:25 +02:00