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fade4dc491
kernel-ark/arch/s390/kernel
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Heiko Carstens fade4dc491 s390/sysinfo,topology: fix cpu topology maximum nesting detection 
The maximum nesting of the cpu topology is evaluated when /proc/sysinfo
is the first time read. This happens without a lock and a concurrent
reader on a different cpu can see and use an invalid intermediate value.
Besides the fact that this race is quite unlikely the worst thing that
could happen is that /proc/sysinfo would contain bogus information about
the machine's cpu topology.
Nevertheless this should be fixed. So move the detection code to the
early machine detection code and since now the value is early available
use it in the topology code as well.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-09-26 15:45:08 +02:00
..
vdso32 s390: add various .gitignore files. 2012-05-16 14:42:41 +02:00
vdso64 s390: add various .gitignore files. 2012-05-16 14:42:41 +02:00
.gitignore s390: add various .gitignore files. 2012-05-16 14:42:41 +02:00
asm-offsets.c s390: add support for transactional memory 2012-09-26 15:45:02 +02:00
audit.c [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
audit.h [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
base.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
bitmap.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cache.c s390/cache: add cpu cache information to /proc/cpuinfo 2012-09-26 15:45:03 +02:00
compat_audit.c [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
compat_exec_domain.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
compat_linux.c s390/compat: fix mmap compat system calls 2012-08-08 07:32:57 -07:00
compat_linux.h Mark arguments to certain syscalls as being const 2010-08-13 16:53:13 -07:00
compat_ptrace.h [S390] ptrace cleanup 2011-01-05 12:47:31 +01:00
compat_signal.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
compat_wrapper.S s390: add support for runtime instrumentation 2012-09-26 15:45:02 +02:00
cpcmd.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
crash_dump.c [S390] kernel: Add OS info memory interface 2012-03-11 11:59:29 -04:00
debug.c s390/debug: remove module_exit function / move EXPORT_SYMBOLs 2012-07-26 10:07:25 +02:00
diag.c [S390] replace diag10() with diag10_range() function 2011-05-10 17:13:43 +02:00
dis.c s390: add support for transactional memory 2012-09-26 15:45:02 +02:00
early.c s390/sysinfo,topology: fix cpu topology maximum nesting detection 2012-09-26 15:45:08 +02:00
ebcdic.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
entry64.S s390: add support for transactional memory 2012-09-26 15:45:02 +02:00
entry.h s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
entry.S s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
ftrace.c [S390] cleanup ftrace backend functions 2011-01-05 12:47:31 +01:00
head31.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
head64.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
head_kdump.S s390/sigp: use sigp order code defines in assembly code 2012-06-05 13:23:36 +02:00
head.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
ipl.c s390/ipl: Use diagnose 8 command separation 2012-07-26 10:07:26 +02:00
irq.c s390: add support for runtime instrumentation 2012-09-26 15:45:02 +02:00
jump_label.c s390/jump-label: add arch_jump_label_transform_static() 2011-10-25 11:54:37 -07:00
kprobes.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
lgr.c s390/lgr: Add init check to lgr_info_log() 2012-07-20 11:15:01 +02:00
machine_kexec.c s390/kexec: move machine_crash_shutdown() to machine_kexec.c 2012-09-26 15:44:54 +02:00
Makefile s390: add support for runtime instrumentation 2012-09-26 15:45:02 +02:00
mcount64.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
mcount.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
mem_detect.c [S390] Rework create_mem_hole() function 2011-12-27 11:27:09 +01:00
module.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
nmi.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
os_info.c s390/smp: make absolute lowcore / cpu restart parameter accesses more robust 2012-06-14 09:09:02 +02:00
perf_cpum_cf.c s390/irq: split irq stats for cpu-measurement alert facilities 2012-05-23 17:06:52 +02:00
perf_event.c [S390] Fix build errors (fallout from system.h disintegration) 2012-03-30 09:41:12 +02:00
process.c s390: add support for runtime instrumentation 2012-09-26 15:45:02 +02:00
processor.c s390/processor: use ARRAY_SIZE instead of hard coded value 2012-09-26 15:45:03 +02:00
ptrace.c s390: add support for transactional memory 2012-09-26 15:45:02 +02:00
reipl64.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
reipl.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
relocate_kernel64.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
relocate_kernel.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
runtime_instr.c s390/mm: rename addressing_mode to s390_user_mode 2012-09-26 15:45:05 +02:00
s390_ksyms.c s390/string: provide asm lib functions for memcpy and memcmp 2012-09-26 15:44:50 +02:00
sclp.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
setup.c s390/mm: shorten addressing mode initialization 2012-09-26 15:45:06 +02:00
signal.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
smp.c s390/smp: avoid concurrent write to sigp status field 2012-09-26 15:45:04 +02:00
stacktrace.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
suspend.c Disintegrate asm/system.h for S390 2012-03-28 18:30:02 +01:00
swsusp_asm64.S s390/sigp: use sigp order code defines in assembly code 2012-06-05 13:23:36 +02:00
sys_s390.c s390: do not clobber personality flags in sys_32_personality() 2012-08-08 07:32:56 -07:00
syscalls.S s390: add support for runtime instrumentation 2012-09-26 15:45:02 +02:00
sysinfo.c s390/sysinfo,topology: fix cpu topology maximum nesting detection 2012-09-26 15:45:08 +02:00
time.c s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
topology.c s390/sysinfo,topology: fix cpu topology maximum nesting detection 2012-09-26 15:45:08 +02:00
traps.c s390: add support for transactional memory 2012-09-26 15:45:02 +02:00
vdso.c s390/mm: rename addressing_mode to s390_user_mode 2012-09-26 15:45:05 +02:00
vmlinux.lds.S s390/linker script: use RO_DATA_SECTION 2012-07-26 10:07:25 +02:00
vtime.c s390/cpu hotplug: mask out CPU_TASKS_FROZEN in cu hotplug notifiers 2012-09-26 15:44:53 +02:00