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linux/arch/s390/include/asm
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Martin Schwidefsky acdc9fc9a8 s390/bitops: implement cache friendly test_and_set_bit_lock 
The generic implementation for test_and_set_bit_lock in include/asm-generic
uses the standard test_and_set_bit operation. This is done with either a
'csg' or a 'loag' instruction. For both version the cache line is fetched
exclusively, even if the bit is already set. The result is an increase in
cache traffic, for a contented lock this is a bad idea.

Acked-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 		2015-10-14 14:32:06 +02:00
..
Kbuild Merge branch 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2015-10-04 16:31:13 +01:00
airq.h s390/airq: add support for irq ranges 2014-03-04 10:41:04 +01:00
appldata.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
asm-offsets.h
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atomic.h atomic: Collapse all atomic_{set,clear}_mask definitions 2015-07-27 14:06:24 +02:00
barrier.h s390/barrier: avoid serialization in [smp_]rmb and [smp_]wmb 2015-10-14 14:32:01 +02:00
bitops.h s390/bitops: implement cache friendly test_and_set_bit_lock 2015-10-14 14:32:06 +02:00
bug.h
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bugs.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cache.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cacheflush.h mm/debug_pagealloc: fix build failure on ppc and some other archs 2015-02-05 13:35:30 -08:00
ccwdev.h s390/cio: fix multiple structure definitions 2014-05-20 08:58:53 +02:00
ccwgroup.h s390: fix new ccwgroup.h kernel-doc warning 2014-05-20 08:58:45 +02:00
checksum.h s390/checksum: remove memset() within csum_partial_copy_from_user() 2014-02-24 17:14:08 +01:00
chpid.h s390/cio: fix multiple structure definitions 2014-05-20 08:58:53 +02:00
cio.h s390/cio: introduce pathmask_to_pos 2015-10-14 14:32:04 +02:00
clp.h s390/pci: cleanup clp page allocation 2013-02-14 15:55:16 +01:00
cmb.h s390/cio: use device_lock during cmb activation 2015-10-14 14:32:02 +02:00
cmpxchg.h arch: Remove __ARCH_HAVE_CMPXCHG 2015-05-13 10:55:42 +02:00
compat.h s390/compat: build error for large compat syscall args 2014-03-06 16:30:47 +01:00
cpcmd.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cpu.h s390/smp: cleanup core vs. cpu in the SCLP interface 2015-06-25 09:39:24 +02:00
cpu_mf.h s390: add SMT support 2015-01-22 12:16:01 +01:00
cpufeature.h s390/module: enable generic CPU feature modalias using s390 ELF hwcaps 2015-07-22 09:58:02 +02:00
cputime.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
crw.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
css_chars.h s390/qdio: bridgeport support - CHSC part 2014-01-15 14:48:01 -08:00
ctl_reg.h s390/kernel: lazy restore fpu registers 2015-07-22 09:58:01 +02:00
current.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
debug.h s390/debug: avoid function call for debug_sprintf_* 2014-12-08 09:42:29 +01:00
delay.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
device.h
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diag.h
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dis.h s390/disassembler: add vector instructions 2014-10-09 09:14:15 +02:00
div64.h
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dma-mapping.h dma-mapping: consolidate dma_set_mask 2015-09-10 13:29:01 -07:00
dma.h s390/pci: define isa_dma_bridge_buggy 2013-01-08 10:57:09 +01:00
eadm.h s390/scm_block: do not hide eadm subchannel dependency 2013-11-15 14:08:42 +01:00
ebcdic.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
elf.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2015-04-14 20:51:44 -07:00
emergency-restart.h
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etr.h KVM: s390: host STP toleration for VMs 2015-08-04 14:38:37 +02:00
exec.h Disintegrate asm/system.h for S390 2012-03-28 18:30:02 +01:00
extmem.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
facility.h s390/facility: decompose test_facility() 2013-06-26 21:10:25 +02:00
fb.h
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fcx.h s390/cio: fix error-prone defines 2013-10-24 17:17:04 +02:00
fpu-internal.h s390/kernel: remove save_fpu_regs() parameter and use __LC_CURRENT instead 2015-08-03 10:04:37 +02:00
ftrace.h s390/ftrace: hotpatch support for function tracing 2015-01-29 09:19:25 +01:00
futex.h s390/uaccess: simplify control register updates 2014-05-20 08:58:46 +02:00
hardirq.h hardirq: Make hardirq bits generic 2013-11-13 20:21:46 +01:00
hugetlb.h s390/hugetlb: add hugepages_supported define 2015-07-17 16:39:52 -07:00
hw_irq.h s390: convert interrupt handling to use generic hardirq 2013-08-22 12:20:04 +02:00
idals.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
idle.h s390/idle: convert open coded idle time seqcount 2014-12-08 09:42:32 +01:00
io.h s390/io: Add pci_iomap_wc() and pci_iomap_wc_range() 2015-08-28 08:04:48 +02:00
ipl.h s390/kdump: fix nosmt kernel parameter 2015-06-25 09:39:26 +02:00
irq.h s390: fix /proc/interrupts output 2015-03-25 11:41:41 -04:00
irq_regs.h
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irqflags.h s390/kernel: use stnsm 255 instead of stosm 0 2014-12-18 13:37:15 +01:00
isc.h s390/pci: PCI adapter interrupts for MSI/MSI-X 2012-11-30 17:47:21 +01:00
itcw.h
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jump_label.h locking/static_keys: Add a new static_key interface 2015-08-03 11:34:15 +02:00
kdebug.h
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kexec.h kexec: allocate the kexec control page with KEXEC_CONTROL_MEMORY_GFP 2015-04-23 16:52:01 +02:00
kmap_types.h s390/headers: remove #ifdef __KERNEL__ from not exported headers 2012-05-24 10:10:05 +02:00
kprobes.h s390/ftrace,kprobes: allow to patch first instruction 2014-10-27 13:27:27 +01:00
kvm_host.h KVM: disable halt_poll_ns as default for s390x 2015-09-25 10:31:30 +02:00
kvm_para.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
linkage.h s390/kernel: move EX_TABLE macros to linkage.h header file 2015-07-22 09:57:59 +02:00
livepatch.h livepatch: add support on s390 2015-03-27 15:05:32 +01:00
local.h
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local64.h
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lowcore.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
mathemu.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
mman.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
mmu.h s390/kvm: remove delayed reallocation of page tables for KVM 2015-04-23 16:55:49 +02:00
mmu_context.h s390/kvm: remove delayed reallocation of page tables for KVM 2015-04-23 16:55:49 +02:00
mmzone.h s390/numa: add core infrastructure 2015-08-03 18:40:25 +02:00
module.h Make most arch asm/module.h files use asm-generic/module.h 2012-09-28 14:31:03 +09:30
mutex.h mutex: replace CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX with simple ifdef 2013-09-28 12:46:21 +02:00
nmi.h s390: add support for vector extension 2014-10-09 09:14:13 +02:00
numa.h s390/numa: use correct type for node_to_cpumask_map 2015-09-23 09:18:56 +02:00
os_info.h s390/kernel: Remove OS info init function call and diag 308 for kdump 2012-05-23 17:06:50 +02:00
page.h revert "s390/mm: make hugepages_supported a boot time decision" 2015-07-17 16:39:52 -07:00
pci.h s390/numa: add core infrastructure 2015-08-03 18:40:25 +02:00
pci_clp.h s390/pci: add some new arch specific pci attributes 2014-05-20 08:58:50 +02:00
pci_debug.h s390/pci: remove CONFIG_PCI_DEBUG dependancy 2013-10-24 17:17:16 +02:00
pci_dma.h s390/pci: DMA support 2012-11-30 17:47:23 +01:00
pci_insn.h s390/pci: cleanup function information block 2013-10-24 17:17:17 +02:00
pci_io.h s390: add pci_iomap_range 2015-01-21 16:28:49 +10:30
percpu.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
perf_event.h s390/oprofile: fix compile error 2015-07-01 09:34:39 +02:00
pgalloc.h s390/kvm: remove delayed reallocation of page tables for KVM 2015-04-23 16:55:49 +02:00
pgtable.h s390/mm: implement soft-dirty bits for user memory change tracking 2015-10-14 14:32:05 +02:00
processor.h s390/sclp: convert early sclp console code to C 2015-07-29 09:11:39 +02:00
ptrace.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
qdio.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
reset.h s390: add SMT support 2015-01-22 12:16:01 +01:00
runtime_instr.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
rwsem.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
schid.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
sclp.h s390/sclp: convert early sclp console code to C 2015-07-29 09:11:39 +02:00
scsw.h s390: add eadm related structures 2012-09-26 15:44:57 +02:00
seccomp.h
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sections.h
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segment.h
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serial.h s390: convert interrupt handling to use generic hardirq 2013-08-22 12:20:04 +02:00
setup.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
sfp-machine.h
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sfp-util.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
shmparam.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
signal.h s390: switch to generic old sigaction() 2013-02-03 18:16:14 -05:00
sigp.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2015-02-11 17:42:32 -08:00
smp.h s390/kdump: fix compile for !SMP 2015-06-29 10:13:11 +02:00
sparsemem.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
spinlock.h s390/cmpxchg: use compiler builtins 2014-11-03 13:29:47 +01:00
spinlock_types.h s390/rwlock: use directed yield for write-locked rwlocks 2014-09-25 10:52:05 +02:00
string.h lib/string.c: remove strnicmp() 2015-02-12 18:54:14 -08:00
switch_to.h s390/kernel: remove save_fpu_regs() parameter and use __LC_CURRENT instead 2015-08-03 10:04:37 +02:00
syscall.h s390/syscalls: simplify syscall_get_arch() 2015-03-30 13:26:07 +02:00
sysinfo.h Fairly small update, but there are some interesting new features. 2015-02-13 09:55:09 -08:00
termios.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
thread_info.h Merge branch 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc 2015-04-15 13:53:55 -07:00
timex.h s390: time: Provide read_boot_clock64() and read_persistent_clock64() 2015-05-22 10:36:29 -07:00
tlb.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
tlbflush.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
topology.h s390/numa: use correct type for node_to_cpumask_map 2015-09-23 09:18:56 +02:00
types.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
uaccess.h mm/uaccess, mm/fault: Clarify that uaccess may only sleep if pagefaults are enabled 2015-05-19 08:39:14 +02:00
unaligned.h
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unistd.h s390: wire up separate socketcalls system calls 2015-09-18 11:16:53 +02:00
uprobes.h s390/uprobes: architecture backend for uprobes 2014-09-25 10:52:17 +02:00
user.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
vdso.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
vga.h vga: compile fix, disable vga for s390 2012-11-30 17:47:28 +01:00
vtime.h vtime: Describe overriden functions in dedicated arch headers 2013-08-14 17:14:53 +02:00
vtimer.h s390/idle: consolidate idle functions and definitions 2014-10-09 09:14:03 +02:00
vx-insn.h s390/vx: add vector instruction support for older binutils versions 2015-07-22 09:58:01 +02:00
xor.h
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