AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/arch/s390/kernel
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Hendrik Brueckner 4bbaf2584b s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero 
Correct a trinity finding for the perf_event_open() system call with
a perf event attribute structure that uses a frequency but has the
sampling frequency set to zero.  This causes a FP divide exception during
the sample rate initialization for the hardware sampling facility.

Fixes: 8c069ff4bd ("s390/perf: add support for the CPU-Measurement Sampling Facility")
Cc: stable@vger.kernel.org # 3.14+
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-05-08 15:56:36 +02:00
..
syscalls s390/kexec_file: Add kexec_file_load system call 2018-04-16 09:10:22 +02:00
vdso32 s390/vdso: revise CFI annotations of vDSO functions 2017-12-13 10:51:36 +01:00
vdso64 s390/vdso: revise CFI annotations of vDSO functions 2017-12-13 10:51:36 +01:00
.gitignore s390: add various .gitignore files. 2012-05-16 14:42:41 +02:00
als.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
alternative.c s390: add automatic detection of the spectre defense 2018-03-28 08:38:24 +02:00
asm-offsets.c s390/ftrace: use expoline for indirect branches 2018-05-07 21:12:38 +02:00
audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
audit.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
base.S s390/kernel: use expoline for indirect branches 2018-05-07 21:12:39 +02:00
cache.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_linux.c mm: add ksys_readahead() helper; remove in-kernel calls to sys_readahead() 2018-04-02 20:16:12 +02:00
compat_linux.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_ptrace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_signal.c s390/compat: fix setup_frame32 2018-04-10 07:38:54 +02:00
compat_wrapper.c s390/kexec_file: Add kexec_file_load system call 2018-04-16 09:10:22 +02:00
cpcmd.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
crash_dump.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debug.c s390/debug: use pK for kernel pointers 2017-11-24 14:28:34 +01:00
diag.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dis.c s390: kernel: add SPDX identifiers to the remaining files 2017-11-24 15:37:12 +01:00
dumpstack.c s390: kernel: add SPDX identifiers to the remaining files 2017-11-24 15:37:12 +01:00
early_printk.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
early.c s390/ipl: rely on diag308 store to get ipl info 2018-04-10 07:38:59 +02:00
ebcdic.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
entry.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-11-13 11:47:01 -08:00
entry.S s390: move expoline assembler macros to a header 2018-05-07 09:07:32 +02:00
fpu.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ftrace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
guarded_storage.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-11-13 11:47:01 -08:00
head64.S s390: remove all code using the access register mode 2017-11-14 11:01:47 +01:00
head_kdump.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
head.S s390/head: replace hard coded values with constants 2018-01-23 07:36:46 +01:00
idle.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ipl.c s390/ipl: remove reipl_method and dump_method 2018-04-10 07:39:00 +02:00
irq.c s390: remove indirect branch from do_softirq_own_stack 2018-05-07 21:12:42 +02:00
jump_label.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kdebugfs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kexec_elf.c s390/kexec_file: Add ELF loader 2018-04-16 09:10:23 +02:00
kexec_image.c s390/kexec_file: Add crash support to image loader 2018-04-16 09:10:22 +02:00
kprobes.c s390/kprobes: Fix %p uses in error messages 2018-02-02 10:47:15 +01:00
lgr.c s390: kernel: add SPDX identifiers to the remaining files 2017-11-24 15:37:12 +01:00
machine_kexec_file.c s390/kexec_file: Add ELF loader 2018-04-16 09:10:23 +02:00
machine_kexec.c s390/ipl: correct kdump reipl block checksum calculation 2018-04-10 07:39:00 +02:00
Makefile s390: move spectre sysfs attribute code 2018-05-07 21:12:41 +02:00
mcount.S s390/ftrace: use expoline for indirect branches 2018-05-07 21:12:38 +02:00
module.c s390: correct module section names for expoline code revert 2018-04-23 07:57:17 +02:00
nmi.c headers: untangle kmemleak.h from mm.h 2018-04-05 21:36:27 -07:00
nospec-branch.c s390: extend expoline to BC instructions 2018-05-07 21:12:42 +02:00
nospec-sysfs.c s390: move spectre sysfs attribute code 2018-05-07 21:12:41 +02:00
os_info.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf_cpum_cf_events.c s390/cpum_cf: rename IBM z13/z14 counter names 2018-04-23 07:57:17 +02:00
perf_cpum_cf.c s390: kernel: Remove redundant license text 2017-11-24 15:37:20 +01:00
perf_cpum_sf.c s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero 2018-05-08 15:56:36 +02:00
perf_event.c s390: kernel: Remove redundant license text 2017-11-24 15:37:20 +01:00
perf_regs.c s390: add a few more SPDX identifiers 2017-12-05 07:51:09 +01:00
pgm_check.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
process.c s390: update sampling tag after task pid change 2018-04-23 07:57:17 +02:00
processor.c s390: run user space and KVM guests with modified branch prediction 2018-02-05 14:48:50 +01:00
ptrace.c s390/gs: add compat regset for the guarded storage broadcast control block 2017-11-28 17:33:15 +01:00
reipl.S s390/kernel: use expoline for indirect branches 2018-05-07 21:12:39 +02:00
relocate_kernel.S s390: assume diag308 set always works 2018-04-10 07:38:59 +02:00
runtime_instr.c s390/runtime_instrumentation: re-add signum system call parameter 2018-02-05 07:34:50 +01:00
setup.c s390: add support for IBM z14 Model ZR1 2018-04-16 09:10:24 +02:00
signal.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
smp.c headers: untangle kmemleak.h from mm.h 2018-04-05 21:36:27 -07:00
stacktrace.c s390: kernel: add SPDX identifiers to the remaining files 2017-11-24 15:37:12 +01:00
sthyi.c s390: kernel: Remove redundant license text 2017-11-24 15:37:20 +01:00
suspend.c s390: unify linker symbols usage 2018-02-27 08:05:23 +01:00
swsusp.S s390/kernel: use expoline for indirect branches 2018-05-07 21:12:39 +02:00
sys_s390.c mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff() 2018-04-02 20:16:11 +02:00
sysinfo.c s390/sysinfo: add and display licensed internal code identifier 2018-02-02 10:47:15 +01:00
time.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-11-30 08:13:36 -08:00
topology.c treewide: Use DEVICE_ATTR_RW 2018-01-09 16:33:31 +01:00
trace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
traps.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
uprobes.c s390/uprobes: implement arch_uretprobe_is_alive() 2018-04-23 07:57:16 +02:00
vdso.c s390: kernel: Remove redundant license text 2017-11-24 15:37:20 +01:00
vmlinux.lds.S s390: introduce execute-trampolines for branches 2018-02-07 15:57:02 +01:00
vtime.c s390: kernel: add SPDX identifiers to the remaining files 2017-11-24 15:37:12 +01:00