[GIT PULL] s390 patches for the 4.4 merge window

From: Martin Schwidefsky
Date: Wed Nov 04 2015 - 04:55:29 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:

There is only one new feature in this pull for the 4.4 merge window,
most of it is small enhancements, cleanup and bug fixes.

* Add the s390 backend for the software dirty bit tracking. This adds two
new pgtable functions pte_clear_soft_dirty and pmd_clear_soft_dirty which
is why there is a hit to arch/x86/include/asm/pgtable.h in this pull
request.
* A series of cleanup patches for the AP bus, this includes the removal of
the support for two outdated crypto cards (PCICC and PCICA).
* The irq handling / signaling on buffer full in the runtime instrumentation
code is dropped.
* Some micro optimizations: remove unnecessary memory barriers for a couple
of functions: [smb_]rmb, [smb_]wmb, atomics, bitops, and for spin_unlock.
Use the builtin bswap if available and make test_and_set_bit_lock more
cache friendly.
* Statistics and a tracepoint for the diagnose calls to the hypervisor.
* The CPU measurement facility support to sample KVM guests is improved.
* The vector instructions are now always enabled for user space processes
if the hardware has the vector facility. This simplifies the FPU handling
code. The fpu-internal.h header is split into fpu internals, api and types
just like x86.
* Cleanup and improvements for the common I/O layer.
* Rework udelay to solve a problem with kprobe. udelay has busy loop
semantics but still uses an idle processor state for the wait.

Alexander Kuleshov (1):
s390/crash_dump: use for_each_mem_range

Christian Borntraeger (8):
s390/dasd: mark DASD devices as non rotational
s390/spinlock: use correct barriers
s390/vdso: use correct memory barrier
s390/barrier: avoid serialization in [smp_]rmb and [smp_]wmb
s390/cpumf: rework program parameter setting to detect guest samples
s390/compiler.h Fix sparse vs. hotpatch
s390/spinlock: remove unneeded serializations at unlock
s390/Kconfig: use builtin bswap

Heiko Carstens (14):
s390/udelay: make udelay have busy loop semantics
s390/flags: fix flag handling
s390/flags: use _BITUL macro
s390/nmi: change type of mcck_interruption_code lowcore field
s390/cmpxchg: remove dead code
s390/bitops: remove 31 bit related comments
s390/etr,stp: fix possible deadlock on machine check
s390: get rid of __set_psw_mask()
s390: don't store registers on disabled wait anymore
s390/nmi: remove pointless error strings
s390/nmi: remove casts
s390/nmi: fix terminology
s390/nmi: reduce size of percpu variable
s390/topology: reduce per_cpu() invocations

Hendrik Brueckner (4):
s390/fpu: always enable the vector facility if it is available
s390/fpu: add static FPU save area for init_task
s390/entry: add assembler macro to conveniently tests under mask
s390/fpu: split fpu-internal.h into fpu internals, api, and type headers

Ingo Tuchscherer (1):
s390/zcrypt: enable odd RSA modulus sizes in CRT format

Martin Schwidefsky (20):
mm: add architecture primitives for software dirty bit clearing
s390/mm: implement soft-dirty bits for user memory change tracking
s390/bitops: implement cache friendly test_and_set_bit_lock
s390/diag: add a statistic for diagnose calls
s390/diag: add tracepoint for diagnose calls
s390/barrier: remove unnecessary serialization in atomics and bitops
s390/mm: try to avoid storage key operation in ptep_set_access_flags
s390/sclp: avoid merged message output
s390/asm: make use of the OFFSET macro to define assember constants
s390/zcrypt: remove duplicate low level functions
s390/zcrypt: fix memory leak with ap configuration data
s390/zcrypt: fix device unregister race
s390/zcrypt: fix suspend/resume of AP bus devices
s390/zcrypt: cleanup AP bus timer code
s390/zcrypt: use explicit return code for flushed requests
s390/zcrypt: introduce state machine for the AP bus
s390/zcrypt: remove support for PCICC and PCICA cards
s390/zcrypt: use system work queue for ap_scan_bus
s390/kernel: fix ptrace peek/poke for floating point registers
s390: remove runtime instrumentation interrupts

Michael Holzheu (1):
s390/numa: write kernel message when emu_size has been increased

Pierre Morel (2):
s390/css: unneeded initialization in for_each_subchannel
s390/cio: de-duplicate subchannel validation

Sebastian Ott (11):
s390/cio: cleanup cmb_enable sysfs attr
s390/cio: use device_lock during cmb activation
s390/cio: fix use after free in cmb processing
s390/cio: improve locking during cmbe allocation
s390/cio: fix memleak in channel measurement
s390/cio: use kmem_cache for extended measurement block allocation
s390/cio: reactivate cmf after hibernate
s390/cio: introduce pathmask_to_pos
s390/pci: reshuffle struct used to write debug data
s390/cio: move ccw_device_call_handler
s390/cio: move ccw_device_stlck functions

Stefan Haberland (4):
s390/dasd: fix list_del corruption after lcu changes
s390/dasd: fix double free in dasd_eckd_read_conf
s390/dasd: fix invalid PAV assignment after suspend/resume
s390/dasd: fix disconnected device with valid path mask

arch/s390/Kconfig | 2 +
arch/s390/hypfs/hypfs_diag.c | 10 +-
arch/s390/hypfs/hypfs_diag0c.c | 2 +
arch/s390/hypfs/hypfs_sprp.c | 9 +-
arch/s390/hypfs/hypfs_vm.c | 2 +
arch/s390/include/asm/appldata.h | 2 +
arch/s390/include/asm/atomic.h | 2 -
arch/s390/include/asm/barrier.h | 8 +-
arch/s390/include/asm/bitops.h | 55 +-
arch/s390/include/asm/cio.h | 10 +
arch/s390/include/asm/cmb.h | 1 +
arch/s390/include/asm/cmpxchg.h | 30 +-
arch/s390/include/asm/cpu_mf.h | 5 -
arch/s390/include/asm/ctl_reg.h | 2 -
arch/s390/include/asm/diag.h | 29 +
arch/s390/include/asm/etr.h | 10 +-
arch/s390/include/asm/fpu/api.h | 30 +
.../include/asm/{fpu-internal.h => fpu/internal.h} | 51 +-
arch/s390/include/asm/fpu/types.h | 25 +
arch/s390/include/asm/idle.h | 2 +
arch/s390/include/asm/irq.h | 14 +-
arch/s390/include/asm/kvm_host.h | 2 +-
arch/s390/include/asm/kvm_para.h | 67 +-
arch/s390/include/asm/lowcore.h | 11 +-
arch/s390/include/asm/nmi.h | 98 +-
arch/s390/include/asm/pgtable.h | 66 +-
arch/s390/include/asm/processor.h | 99 +-
arch/s390/include/asm/ptrace.h | 11 +-
arch/s390/include/asm/setup.h | 50 +-
arch/s390/include/asm/spinlock.h | 3 -
arch/s390/include/asm/switch_to.h | 2 +-
arch/s390/include/asm/thread_info.h | 22 +-
arch/s390/include/asm/trace/diag.h | 43 +
arch/s390/kernel/Makefile | 2 +
arch/s390/kernel/asm-offsets.c | 290 +--
arch/s390/kernel/compat_signal.c | 7 +-
arch/s390/kernel/cpcmd.c | 2 +
arch/s390/kernel/crash_dump.c | 16 +-
arch/s390/kernel/diag.c | 134 +-
arch/s390/kernel/early.c | 15 +-
arch/s390/kernel/entry.S | 230 +--
arch/s390/kernel/entry.h | 3 -
arch/s390/kernel/head64.S | 7 +-
arch/s390/kernel/ipl.c | 9 +-
arch/s390/kernel/irq.c | 1 -
arch/s390/kernel/nmi.c | 120 +-
arch/s390/kernel/perf_cpum_sf.c | 10 +-
arch/s390/kernel/process.c | 37 +-
arch/s390/kernel/processor.c | 5 +-
arch/s390/kernel/ptrace.c | 52 +-
arch/s390/kernel/runtime_instr.c | 64 +-
arch/s390/kernel/s390_ksyms.c | 3 +-
arch/s390/kernel/signal.c | 7 +-
arch/s390/kernel/smp.c | 10 +-
arch/s390/kernel/time.c | 31 +-
arch/s390/kernel/topology.c | 28 +-
arch/s390/kernel/trace.c | 29 +
arch/s390/kernel/traps.c | 41 +-
arch/s390/kernel/vdso.c | 2 +-
arch/s390/kvm/kvm-s390.c | 6 -
arch/s390/lib/delay.c | 30 +-
arch/s390/lib/find.c | 4 +-
arch/s390/lib/spinlock.c | 4 +-
arch/s390/mm/extmem.c | 3 +
arch/s390/mm/fault.c | 7 +-
arch/s390/mm/hugetlbpage.c | 2 +
arch/s390/numa/mode_emu.c | 10 +-
arch/s390/pci/pci_insn.c | 6 +-
arch/x86/include/asm/pgtable.h | 10 +
drivers/s390/block/dasd.c | 1 +
drivers/s390/block/dasd_alias.c | 5 +-
drivers/s390/block/dasd_diag.c | 2 +
drivers/s390/block/dasd_eckd.c | 73 +-
drivers/s390/char/diag_ftp.c | 2 +
drivers/s390/char/sclp_rw.c | 136 +-
drivers/s390/char/sclp_rw.h | 17 +-
drivers/s390/char/sclp_tty.c | 8 +-
drivers/s390/cio/cio.c | 33 +-
drivers/s390/cio/cmf.c | 220 ++-
drivers/s390/cio/css.c | 2 +-
drivers/s390/cio/device.c | 4 +-
drivers/s390/cio/device.h | 6 +-
drivers/s390/cio/device_fsm.c | 38 +
drivers/s390/cio/device_ops.c | 107 --
drivers/s390/cio/device_pgid.c | 70 +-
drivers/s390/crypto/Makefile | 4 +-
drivers/s390/crypto/ap_bus.c | 1850 +++++++++-----------
drivers/s390/crypto/ap_bus.h | 67 +-
drivers/s390/crypto/zcrypt_api.c | 3 +-
drivers/s390/crypto/zcrypt_cca_key.h | 2 +-
drivers/s390/crypto/zcrypt_msgtype50.c | 28 +-
drivers/s390/crypto/zcrypt_msgtype6.c | 59 +-
drivers/s390/crypto/zcrypt_pcica.c | 420 -----
drivers/s390/crypto/zcrypt_pcica.h | 115 --
drivers/s390/crypto/zcrypt_pcicc.c | 627 -------
drivers/s390/crypto/zcrypt_pcicc.h | 174 --
drivers/s390/virtio/virtio_ccw.c | 15 +-
drivers/watchdog/diag288_wdt.c | 4 +
fs/proc/task_mmu.c | 4 +-
include/asm-generic/pgtable.h | 10 +
include/linux/compiler.h | 2 +-
101 files changed, 2432 insertions(+), 3688 deletions(-)
create mode 100644 arch/s390/include/asm/fpu/api.h
rename arch/s390/include/asm/{fpu-internal.h => fpu/internal.h} (59%)
create mode 100644 arch/s390/include/asm/fpu/types.h
create mode 100644 arch/s390/include/asm/trace/diag.h
create mode 100644 arch/s390/kernel/trace.c
delete mode 100644 drivers/s390/crypto/zcrypt_pcica.c
delete mode 100644 drivers/s390/crypto/zcrypt_pcica.h
delete mode 100644 drivers/s390/crypto/zcrypt_pcicc.c
delete mode 100644 drivers/s390/crypto/zcrypt_pcicc.h

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