[GIT PULL] s390 patches for the 3.16 merge window #1

From: Martin Schwidefsky
Date: Tue Jun 03 2014 - 02:51:37 EST


Hi Linus,

please pull from the 'for-linus' branch of

git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git for-linus

to receive the following updates:

The biggest change in this patchset is conversion from the bootmem
bitmaps to the memblock code. This conversion requires two common
code patches to introduce the 'physmem' memblock list.

We experimented with ticket spinlocks but in the end decided against
them as they perform poorly on virtualized systems. But the spinlock
cleanup and some small improvements are included.

The uaccess code got another optimization, the get_user/put_user calls
are now inline again for kernel compiles targeted at z10 or newer
machines. This makes the text segment shorter and the code gets a
little bit faster.

And as always some bug fixes.

Christian Borntraeger (1):
s390/lowcore: reserve 96 bytes for IRB in lowcore

Gerald Schaefer (1):
s390/spinlock: fix system hang with spin_retry <= 0

Heiko Carstens (4):
s390/cmma: remove "cmma disable" code in case of dump again
s390/uaccess: provide inline variants of get_user/put_user
s390: require mvcos facility for z10 and newer machines
s390/facilities: remove extract-cpu-time facility check

Jeff Mahoney (1):
s390/appldata: add slab.h for kzalloc/kfree

Julia Lawall (1):
s390/oprofile: make return of 0 explicit

Martin Schwidefsky (8):
s390/uaccess: simplify control register updates
s390: split TIF bits into CIF, PIF and TIF bits
s390/spinlock,rwlock: always to a load-and-test first
s390/rwlock: add missing local_irq_restore calls
s390/spinlock: refactor arch_spin_lock_wait[_flags]
s390/time: cast tv_nsec to u64 prior to shift in update_vsyscall
s390/boot: fix boot of compressed kernel built with gcc 4.9
s390/lowcore: replace lowcore irb array with a per-cpu variable

Michael Holzheu (3):
s390/dump: Remove CONFIG_ZFCPDUMP
s390/zfcpdump: Update documentation in zfcpdump.txt
s390/smp: Avoid busy loop after halt and "begin" on z/VM

Philipp Hachtmann (5):
mm/memblock: Do some refactoring, enhance API
mm/memblock: add physical memory list
s390/mm: Convert bootmem to memblock
s390/spinlock: cleanup spinlock code
s390/spinlock: optimize spinlock code sequence

Randy Dunlap (1):
s390: fix new ccwgroup.h kernel-doc warning

Sebastian Ott (6):
s390/pci: improve state check when processing hotplug events
s390/pci: use macro for attribute creation
s390/pci: use pdev->dev.groups for attribute creation
s390/pci: add some new arch specific pci attributes
s390/cio: fix multiple structure definitions
s390/cio: remove weird assignment during argument evaluation

Documentation/s390/zfcpdump.txt | 73 ++---
arch/s390/Kconfig | 14 +-
arch/s390/appldata/appldata_mem.c | 1 +
arch/s390/boot/compressed/Makefile | 2 +-
arch/s390/include/asm/ccwdev.h | 2 +-
arch/s390/include/asm/ccwgroup.h | 2 +
arch/s390/include/asm/chpid.h | 11 +
arch/s390/include/asm/futex.h | 4 +-
arch/s390/include/asm/lowcore.h | 25 +-
arch/s390/include/asm/mmu_context.h | 43 ++-
arch/s390/include/asm/pci.h | 12 +-
arch/s390/include/asm/pci_clp.h | 10 +-
arch/s390/include/asm/processor.h | 22 ++
arch/s390/include/asm/ptrace.h | 22 ++
arch/s390/include/asm/setup.h | 16 +-
arch/s390/include/asm/smp.h | 5 +-
arch/s390/include/asm/spinlock.h | 129 +++++----
arch/s390/include/asm/spinlock_types.h | 6 +-
arch/s390/include/asm/switch_to.h | 1 -
arch/s390/include/asm/syscall.h | 2 +-
arch/s390/include/asm/thread_info.h | 34 +--
arch/s390/include/asm/uaccess.h | 30 +++
arch/s390/kernel/asm-offsets.c | 3 +-
arch/s390/kernel/compat_signal.c | 2 +-
arch/s390/kernel/crash_dump.c | 83 +++---
arch/s390/kernel/early.c | 6 +
arch/s390/kernel/entry.S | 87 +++---
arch/s390/kernel/entry64.S | 82 +++---
arch/s390/kernel/head.S | 8 +-
arch/s390/kernel/head31.S | 1 -
arch/s390/kernel/nmi.c | 8 +-
arch/s390/kernel/process.c | 6 +-
arch/s390/kernel/ptrace.c | 4 +-
arch/s390/kernel/setup.c | 459 ++++++++++++--------------------
arch/s390/kernel/signal.c | 12 +-
arch/s390/kernel/smp.c | 20 +-
arch/s390/kernel/time.c | 2 +-
arch/s390/kernel/topology.c | 4 +-
arch/s390/kvm/kvm-s390.c | 2 +-
arch/s390/lib/spinlock.c | 157 ++++++-----
arch/s390/lib/uaccess.c | 10 +-
arch/s390/mm/fault.c | 2 +-
arch/s390/mm/mem_detect.c | 130 +++------
arch/s390/mm/page-states.c | 10 -
arch/s390/mm/pgtable.c | 10 +-
arch/s390/mm/vmem.c | 30 +--
arch/s390/oprofile/hwsampler.c | 14 +-
arch/s390/pci/pci.c | 6 +-
arch/s390/pci/pci_clp.c | 10 +
arch/s390/pci/pci_event.c | 5 +-
arch/s390/pci/pci_sysfs.c | 135 +++++-----
drivers/s390/char/Makefile | 2 +-
drivers/s390/char/zcore.c | 44 +--
drivers/s390/cio/ccwreq.c | 4 +-
drivers/s390/cio/chp.c | 2 +-
drivers/s390/cio/chp.h | 2 +-
drivers/s390/cio/chsc.h | 11 -
drivers/s390/cio/chsc_sch.c | 2 +-
drivers/s390/cio/cio.c | 9 +-
drivers/s390/cio/cio.h | 2 +
drivers/s390/cio/device_fsm.c | 4 +-
drivers/s390/cio/device_ops.c | 13 +-
drivers/s390/cio/eadm_sch.c | 2 +-
drivers/s390/net/qeth_core_main.c | 12 +-
include/linux/memblock.h | 79 +++++-
mm/Kconfig | 3 +
mm/memblock.c | 205 +++++++++-----
67 files changed, 1061 insertions(+), 1109 deletions(-)

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