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f045402984
linux/arch/s390/include/asm
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David Hildenbrand f045402984 s390/mm: fix gmap tlb flush issues 
__tlb_flush_asce() should never be used if multiple asce belong to a mm.

As this function changes mm logic determining if local or global tlb
flushes will be neded, we might end up flushing only the gmap asce on all
CPUs and a follow up mm asce flushes will only flush on the local CPU,
although that asce ran on multiple CPUs.

The missing tlb flushes will provoke strange faults in user space and even
low address protections in user space, crashing the kernel.

Fixes: 1b948d6cae ("s390/mm,tlb: optimize TLB flushing for zEC12")
Cc: stable@vger.kernel.org # 3.15+
Reported-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-07-13 10:58:01 +02:00
..
fpu s390/vx: add support functions for in-kernel FPU use 2016-06-14 16:54:11 +02:00
trace s390/diag: add a s390 prefix to the diagnose trace point 2015-11-09 09:10:47 +01:00
airq.h
appldata.h s390/diag: add a statistic for diagnose calls 2015-10-14 14:32:06 +02:00
asm-offsets.h
atomic.h s390/barrier: remove unnecessary serialization in atomics and bitops 2015-10-14 14:32:07 +02:00
barrier.h s390: more efficient smp barriers 2016-01-12 20:47:05 +02:00
bitops.h s390/bitops: remove 31 bit related comments 2015-10-14 14:32:15 +02:00
bug.h
bugs.h
cache.h s390: use __section macro everywhere 2016-06-13 15:58:23 +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
ccwgroup.h
checksum.h ipv4: Update parameters for csum_tcpudp_magic to their original types 2016-03-13 23:55:13 -04:00
chpid.h
cio.h s390/time: STP sync clock correction 2016-06-13 15:58:19 +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 s390: remove is_32bit_task() helper 2015-11-27 09:24:17 +01:00
cpacf.h s390/crypto: cleanup and move the header with the cpacf definitions 2016-04-15 18:16:40 +02:00
cpcmd.h
cpu_mf.h s390/cpumf: use basic block for ecctr inline assembly 2016-06-28 09:32:38 +02:00
cpu.h s390/smp: cleanup core vs. cpu in the SCLP interface 2015-06-25 09:39:24 +02:00
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/cio: Consolidate inline assemblies and related data definitions 2015-12-18 14:59:34 +01:00
css_chars.h
ctl_reg.h s390/fpu: always enable the vector facility if it is available 2015-10-14 14:32:08 +02:00
current.h
debug.h s390/debug: avoid function call for debug_sprintf_* 2014-12-08 09:42:29 +01:00
delay.h
device.h s390/dma: Allow per device dma ops 2016-03-02 17:01:56 +02:00
diag.h s390: avoid extable collisions 2016-06-13 15:58:26 +02:00
dis.h
div64.h
dma-mapping.h s390/dma: Allow per device dma ops 2016-03-02 17:01:56 +02:00
dma.h
eadm.h
ebcdic.h
elf.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2016-01-13 13:16:16 -08:00
emergency-restart.h
exec.h
extmem.h
facilities_src.h s390/facilities: add z13 als bit 2015-12-18 14:59:24 +01:00
facility.h s390/facilities: optimize test_facility() 2015-12-18 14:59:23 +01:00
fb.h
fcx.h s390: use canonical include guard style 2016-06-13 15:58:17 +02:00
ftrace.h s390/dumpstack: implement and use return_address() 2016-05-04 16:29:45 +02:00
futex.h
gmap.h s390/mm: split arch/s390/mm/pgtable.c 2016-03-08 15:00:15 +01:00
hardirq.h
hugetlb.h s390/mm: add support for 2GB hugepages 2016-07-06 08:46:43 +02:00
hw_irq.h
idals.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
idle.h s390/udelay: make udelay have busy loop semantics 2015-10-14 14:32:13 +02:00
io.h s390/io: Add pci_iomap_wc() and pci_iomap_wc_range() 2015-08-28 08:04:48 +02:00
ipl.h s390/ipl: rename diagnose enums 2016-06-13 15:58:26 +02:00
irq_regs.h
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
itcw.h
jump_label.h s390: add explicit <linux/stringify.h> for jump label 2016-06-13 15:58:16 +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
kdebug.h
kexec.h kexec: allocate the kexec control page with KEXEC_CONTROL_MEMORY_GFP 2015-04-23 16:52:01 +02:00
kmap_types.h
kprobes.h s390: stack address vs thread_info 2016-06-28 09:33:00 +02:00
kvm_host.h KVM: s390: set halt polling to 80 microseconds 2016-05-13 17:29:49 +02:00
kvm_para.h s390/diag: add a statistic for diagnose calls 2015-10-14 14:32:06 +02:00
linkage.h s390/kernel: move EX_TABLE macros to linkage.h header file 2015-07-22 09:57:59 +02:00
livepatch.h livepatch: reuse module loader code to write relocations 2016-04-01 15:00:11 +02:00
local64.h
local.h
lowcore.h s390: rename struct _lowcore to struct lowcore 2016-01-11 12:27:15 +01:00
mman.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
mmu_context.h s390/mm: simplify the TLB flushing code 2016-06-13 15:58:22 +02:00
mmu.h s390/mm: simplify the TLB flushing code 2016-06-13 15:58:22 +02:00
mmzone.h s390/numa: add core infrastructure 2015-08-03 18:40:25 +02:00
module.h
mutex.h
nmi.h s390/nmi: remove casts 2015-10-27 09:33:55 +01:00
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.h s390/mm: add support for 2GB hugepages 2016-07-06 08:46:43 +02:00
pci_clp.h s390/pci: add ioctl interface for CLP 2016-03-07 16:54:32 +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
pci_io.h s390/pci: improve ZPCI_* macros 2016-01-26 12:45:49 +01:00
pci.h s390/pci: fmb enhancements 2016-04-15 18:16:40 +02:00
percpu.h s390/percpu: remove this_cpu_cmpxchg_double_4 2016-03-02 06:44:30 -06:00
perf_event.h s390/perf: remove perf_release/reserver_sampling functions 2016-06-28 09:32:25 +02:00
pgalloc.h s390/mm: fix asce_bits handling with dynamic pagetable levels 2016-04-21 09:50:09 +02:00
pgtable.h s390/mm: add support for 2GB hugepages 2016-07-06 08:46:43 +02:00
processor.h s390/cpuinfo: show dynamic and static cpu mhz 2016-06-13 15:58:17 +02:00
ptrace.h s390: remove all usages of PSW_ADDR_INSN 2016-01-19 12:14:03 +01:00
qdio.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
reset.h s390/dump: rework CPU register dump code 2015-11-27 09:24:14 +01:00
runtime_instr.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
rwsem.h locking/rwsem, s390: Provide __down_write_killable() 2016-04-13 10:42:22 +02:00
schid.h
sclp.h Small release overall. 2016-05-19 11:27:09 -07:00
scsw.h
seccomp.h s390/seccomp: include generic seccomp header file 2016-04-01 17:20:55 +02:00
sections.h s390: add proper __ro_after_init support 2016-06-13 15:58:23 +02:00
segment.h
serial.h
setup.h s390/fault: merge report_user_fault implementations 2016-03-02 06:44:27 -06:00
shmparam.h
signal.h
sigp.h s390/smp: use basic blocks for sigp inline assemblies 2016-06-28 09:32:35 +02:00
smp.h s390/dump: rework CPU register dump code 2015-11-27 09:24:14 +01:00
sparsemem.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
spinlock_types.h
spinlock.h s390/spinlock: remove unneeded serializations at unlock 2015-10-14 14:32:25 +02:00
stp.h s390/time: remove ETR support 2016-06-13 15:58:21 +02:00
string.h lib/string.c: remove strnicmp() 2015-02-12 18:54:14 -08:00
switch_to.h s390/fpu: split fpu-internal.h into fpu internals, api, and type headers 2015-10-16 09:41:12 +02:00
syscall.h s390/syscalls: simplify syscall_get_arch() 2015-03-30 13:26:07 +02:00
sysinfo.h s390/sysinfo: add missing SYSIB 1.2.2 multithreading fields 2016-01-11 12:27:00 +01:00
termios.h
thread_info.h s390: add missing declarations 2016-05-10 13:24:51 +02:00
timex.h s390/time: add leap seconds to initial system time 2016-06-13 15:58:20 +02:00
tlb.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
tlbflush.h s390/mm: fix gmap tlb flush issues 2016-07-13 10:58:01 +02:00
topology.h s390/topology: add drawer scheduling domain level 2016-06-13 15:58:27 +02:00
types.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
uaccess.h s390/uaccess: fix __put_get_user_asm define 2016-06-28 09:32:27 +02:00
unaligned.h
unistd.h s390: wire up separate socketcalls system calls 2015-09-18 11:16:53 +02:00
uprobes.h
user.h
vdso.h s390/vdso: optimize getcpu system call 2016-01-11 13:01:24 +01:00
vga.h
vtime.h
vtimer.h
vx-insn.h s390/vx: add vector instruction support for older binutils versions 2015-07-22 09:58:01 +02:00
xor.h s390/xor: optimized xor routing using the XC instruction 2016-02-23 08:56:17 +01:00