AuxXxilium/linux_dsm_epyc7002
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b3e5dc45fd
linux_dsm_epyc7002/arch/s390/include/asm
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Martin Schwidefsky b3e5dc45fd s390/mm: fix local TLB flushing vs. detach of an mm address space 
The local TLB flushing code keeps an additional mask in the mm.context,
the cpu_attach_mask. At the time a global flush of an address space is
done the cpu_attach_mask is copied to the mm_cpumask in order to avoid
future global flushes in case the mm is used by a single CPU only after
the flush.

Trouble is that the reset of the mm_cpumask is racy against the detach
of an mm address space by switch_mm. The current order is first the
global TLB flush and then the copy of the cpu_attach_mask to the
mm_cpumask. The order needs to be the other way around.

Cc: <stable@vger.kernel.org>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-09-06 09:24:42 +02:00
..
fpu s390/fpu: improve kernel_fpu_[begin|end] 2016-08-29 11:05:01 +02:00
trace s390/zcrypt: tracepoint definitions for zcrypt device driver. 2016-12-14 16:33:40 +01:00
airq.h
ap.h s390/zcrypt: externalize AP queue interrupt control 2017-09-06 09:24:42 +02:00
appldata.h s390/diag: add a statistic for diagnose calls 2015-10-14 14:32:06 +02:00
archrandom.h s390/crypto: Provide s390 specific arch random functionality. 2017-04-26 13:41:35 +02:00
asm-prototypes.h s390/kbuild: enable modversions for symbols exported from asm 2016-12-20 15:22:56 +01:00
atomic_ops.h s390/spinlock: use atomic primitives for spinlocks 2017-04-12 08:43:33 +02:00
atomic.h s390/atomic: refactor atomic primitives 2016-11-11 16:37:33 +01:00
barrier.h s390: more efficient smp barriers 2016-01-12 20:47:05 +02:00
bitops.h s390/bitops: remove outdated comment 2017-03-22 08:29:05 +01:00
bug.h debug: Fix WARN_ON_ONCE() for modules 2017-07-20 12:31:04 +02:00
bugs.h
cache.h s390: use __section macro everywhere 2016-06-13 15:58:23 +02:00
ccwdev.h
ccwgroup.h
checksum.h Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
chpid.h
cio.h vfio: ccw: introduce support for ccw0 2017-03-31 12:55:12 +02:00
clp.h s390/pci: add ioctl interface for CLP 2016-03-07 16:54:32 +01:00
cmb.h s390/cio: use device_lock during cmb activation 2015-10-14 14:32:02 +02:00
cmpxchg.h s390/cmpxchg: remove dead code 2015-10-14 14:32:15 +02:00
compat.h teach SYSCALL_DEFINE/COMPAT_SYSCALL_DEFINE to handle __bitwise arguments 2017-08-31 17:32:37 -04:00
cpacf.h Merge branch 's390forkvm' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into features 2017-04-27 07:34:07 +02:00
cpcmd.h s390/cpcmd,vmcp: avoid GFP_DMA allocations 2017-08-09 09:09:35 -04:00
cpu_mf.h s390/cpu_mf: remove register variable in __ecctr() 2017-03-31 07:53:34 +02:00
cpu.h
cpufeature.h
cputime.h s390/cputime: provide archicture specific cputime_to_nsecs 2017-03-01 09:59:27 +01:00
crw.h s390/cio: Consolidate inline assemblies and related data definitions 2015-12-18 14:59:34 +01:00
css_chars.h
ctl_reg.h KVM: s390: implement instruction execution protection for emulated 2017-06-22 12:41:06 +02:00
current.h
debug.h s390: convert debug_info.ref_count from atomic_t to refcount_t 2017-05-11 16:35:32 +02:00
delay.h
diag.h s390/diag: add diag26c support 2017-06-20 15:44:15 -04:00
dis.h s390/uprobes: fix compile for !KPROBES 2017-05-03 09:08:57 +02:00
dma-mapping.h s390: implement ->mapping_error 2017-06-28 06:54:31 -07:00
dma.h
eadm.h block: introduce new block status code type 2017-06-09 09:27:32 -06:00
ebcdic.h s390: remove asm/mman.h and asm/types.h 2017-08-02 11:15:36 +02:00
elf.h s390/mm: use new mm defines instead of magic values 2017-07-26 08:25:09 +02:00
exec.h
extable.h s390: switch to extable.h 2017-03-28 18:23:55 -04:00
extmem.h
facility.h s390/facilities: get rid of __ASSEMBLY__ in facility header file 2017-03-22 08:29:18 +01:00
fcx.h s390: use canonical include guard style 2016-06-13 15:58:17 +02:00
ftrace.h s390/dumpstack: get rid of return_address again 2016-10-17 14:44:33 +02:00
futex.h futex: Remove duplicated code and fix undefined behaviour 2017-08-25 22:49:59 +02:00
gmap.h KVM: s390: backup the currently enabled gmap when scheduled out 2016-06-20 09:55:24 +02:00
hardirq.h
hugetlb.h mm/hugetlb: allow architectures to override huge_pte_clear() 2017-07-06 16:24:34 -07:00
hw_irq.h
idals.h Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
idle.h s390/udelay: make udelay have busy loop semantics 2015-10-14 14:32:13 +02:00
io.h s390: provide default ioremap and iounmap declaration 2017-06-12 16:26:00 +02:00
ipl.h s390/mm: use new mm defines instead of magic values 2017-07-26 08:25:09 +02:00
irq.h s390: use SPARSE_IRQ 2016-06-13 15:58:24 +02:00
irqflags.h s390/irqflags: optimize irq restore 2016-01-19 12:14:01 +01:00
isc.h vfio: ccw: basic implementation for vfio_ccw driver 2017-03-31 12:55:04 +02:00
itcw.h
jump_label.h s390: add explicit <linux/stringify.h> for jump label 2016-06-13 15:58:16 +02:00
Kbuild s390: use generic asm/unaligned.h 2017-08-03 13:16:28 +02:00
kdebug.h
kexec.h s390/crash: Remove unused KEXEC_NOTE_BYTES 2017-07-05 07:35:29 +02:00
kprobes.h s390/uprobes: fix compile for !KPROBES 2017-05-03 09:08:57 +02:00
kvm_host.h PPC: 2017-07-06 18:38:31 -07:00
kvm_para.h s390/diag: add a statistic for diagnose calls 2015-10-14 14:32:06 +02:00
linkage.h
livepatch.h s390: Audit and remove any remaining unnecessary uses of module.h 2017-02-17 07:40:41 +01:00
lowcore.h s390/time: add support for the TOD clock epoch extension 2017-07-26 08:25:14 +02:00
mmu_context.h s390/mm: fix local TLB flushing vs. detach of an mm address space 2017-09-06 09:24:42 +02:00
mmu.h s390/kvm: Add use_cmma field to mm_context_t 2017-04-20 13:33:09 +02:00
mmzone.h
module.h
nmi.h s390/nmi: keep comments consistent 2017-08-02 11:15:34 +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/dump: streamline oldmem copy functions 2015-11-27 09:24:12 +01:00
page-states.h s390/mm: tag normal pages vs pages used in page tables 2017-07-25 06:55:28 +02:00
page.h s390/mm: add missing virt_to_pfn() etc. helper functions 2017-08-09 09:09:22 -04:00
pci_clp.h s390/pci: use proper endianness annotations 2017-01-16 07:27:53 +01:00
pci_debug.h
pci_dma.h s390/pci_dma: fix DMA table corruption with > 4 TB main memory 2015-11-27 09:24:15 +01:00
pci_insn.h s390/pci: improve error handling during interrupt deregistration 2017-06-28 07:32:08 +02:00
pci_io.h s390/pci: improve ZPCI_* macros 2016-01-26 12:45:49 +01:00
pci.h s390/pci: fix handling of PEC 306 2017-06-28 07:32:13 +02:00
percpu.h s390/percpu: remove this_cpu_cmpxchg_double_4 2016-03-02 06:44:30 -06:00
perf_event.h s390/cpum_cf: update counter numbers to ecctr limits 2017-03-31 07:53:26 +02:00
pgalloc.h s390/mm,vmem: simplify region and segment table allocation code 2017-07-26 08:25:12 +02:00
pgtable.h s390/mm: avoid empty zero pages for KVM guests to avoid postcopy hangs 2017-08-29 16:31:27 +02:00
pkey.h s390/pkey: Introduce new API for secure key verification 2017-03-22 08:29:13 +01:00
preempt.h s390/preempt: move preempt_count to the lowcore 2016-11-11 16:37:40 +01:00
processor.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-07-03 15:39:36 -07:00
ptrace.h s390/kvm: avoid global config of vm.alloc_pgste=1 2017-06-13 13:03:41 +02:00
qdio.h s390/mm: use new mm defines instead of magic values 2017-07-26 08:25:09 +02:00
reset.h s390/dump: rework CPU register dump code 2015-11-27 09:24:14 +01:00
runtime_instr.h
rwsem.h locking/rwsem: Remove rwsem_atomic_add() and rwsem_atomic_update() 2016-06-08 15:16:59 +02:00
schid.h
sclp.h s390/sclp: Detect KSS facility 2017-04-21 11:08:04 +02:00
scsw.h s390/dasd: channel path aware error recovery 2016-12-12 12:05:03 +01:00
seccomp.h s390/seccomp: include generic seccomp header file 2016-04-01 17:20:55 +02:00
sections.h mm: fix section name for .data..ro_after_init 2017-03-31 17:13:30 -07:00
segment.h
serial.h
set_memory.h treewide: move set_memory_* functions away from cacheflush.h 2017-05-08 17:15:13 -07:00
setup.h s390/vmcp: make use of contiguous memory allocator 2017-08-09 09:09:35 -04:00
shmparam.h
signal.h
sigp.h s390/smp: use sigp condition code define 2017-06-12 16:25:58 +02:00
smp.h s390/smp: initialize cpu_present_mask in setup_arch 2016-12-07 07:23:07 +01:00
sparsemem.h s390: make MAX_PHYSMEM_BITS configurable 2017-03-28 16:55:10 +02:00
spinlock_types.h s390/spinlock: use atomic primitives for spinlocks 2017-04-12 08:43:33 +02:00
spinlock.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-09-05 09:45:46 -07:00
stp.h s390/time: remove ETR support 2016-06-13 15:58:21 +02:00
string.h s390/lib: add missing memory barriers to string inline assemblies 2016-12-14 16:33:41 +01:00
switch_to.h s390: add a system call for guarded storage 2017-03-22 08:14:25 +01:00
syscall.h s390/syscalls: Fix out of bounds arguments access 2017-07-05 07:35:30 +02:00
sysinfo.h S390/sysinfo: use uuid_is_null instead of opencoding it 2017-06-05 16:59:06 +02:00
termios.h
thread_info.h s390/kvm: avoid global config of vm.alloc_pgste=1 2017-06-13 13:03:41 +02:00
timex.h s390/dasd: Change unsigned long long to unsigned long 2017-08-23 13:31:51 +02:00
tlb.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-09-05 09:45:46 -07:00
tlbflush.h s390/mm: fix local TLB flushing vs. detach of an mm address space 2017-09-06 09:24:42 +02:00
topology.h s390/topology: Remove the unused parent_node() macro 2017-08-23 13:31:51 +02:00
uaccess.h Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-15 11:17:52 -07:00
unistd.h s390: ignore pkey system calls 2016-10-17 11:25:25 +02:00
uprobes.h uprobes: remove function declarations from arch/{mips,s390} 2016-10-07 18:46:30 -07:00
user.h
vdso.h s390/time: steer clocksource on STP sync events 2016-10-28 10:09:02 +02:00
vga.h
vtime.h
vtimer.h
vx-insn.h RAID/s390: add SIMD implementation for raid6 gen/xor 2016-08-29 11:05:04 +02:00
xor.h s390/xor: optimized xor routing using the XC instruction 2016-02-23 08:56:17 +01:00