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196851bed5
linux/arch/s390
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Vasily Gorbik 196851bed5 s390/topology: correct topology mode proc handler 
Reuse proc_douintvec_minmax to simplify topology mode proc handler.
This also enforces correct range of 0-1 on proc writes and correctly
handles numbers starting with 0 or spaces.

Before:
$ echo 01 > /proc/sys/s390/topology
$ cat /proc/sys/s390/topology
0
$ echo ' 1' > /proc/sys/s390/topology
-bash: echo: write error: Invalid argument
$ echo 2 > /proc/sys/s390/topology
-bash: echo: write error: Invalid argument
$ echo 12 > /proc/sys/s390/topology
$ cat /proc/sys/s390/topology
1

After:
$ echo 01 > /proc/sys/s390/topology
$ cat /proc/sys/s390/topology
1
$ echo ' 1' > /proc/sys/s390/topology
$ cat /proc/sys/s390/topology
1
$ echo 2 > /proc/sys/s390/topology
-bash: echo: write error: Invalid argument
$ echo 12 > /proc/sys/s390/topology
-bash: echo: write error: Invalid argument
$ echo '   0' > /proc/sys/s390/topology
$ cat /proc/sys/s390/topology
0

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-07-06 08:47:53 +02:00
..
appldata s390: fix gcc 8 stringop-truncation warnings in proc handlers 2018-07-02 11:24:53 +02:00
boot s390/decompressor: avoid packing *.o.chkbss files into startup.a 2018-07-02 12:32:22 +02:00
configs s390: update defconfigs 2018-04-27 06:51:31 +02:00
crypto s390/archrandom: Rework arch random implementation. 2018-05-30 11:18:04 +02:00
hypfs s390: hypfs: use ktime_get_seconds() instead of get_seconds() 2018-06-25 10:14:41 +02:00
include s390/purgatory: Remove duplicate variable definitions 2018-07-06 08:47:51 +02:00
kernel s390/topology: correct topology mode proc handler 2018-07-06 08:47:53 +02:00
kvm - Error path bug fix for overflow tests (Dan) 2018-06-12 18:28:00 -07:00
lib s390: introduce compile time check for empty .bss section 2018-05-09 10:55:01 +02:00
mm s390/mm: correct allocate_pgste proc_handler callback 2018-07-06 08:47:52 +02:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-06-06 18:39:49 -07:00
numa s390: add a few more SPDX identifiers 2017-12-05 07:51:09 +01:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci s390/pci: add fmt3 fmb 2018-07-04 08:35:58 +02:00
purgatory s390/purgatory: Remove duplicate variable definitions 2018-07-06 08:47:51 +02:00
scripts s390/build: add *.o.chkbss files to targets list 2018-07-02 12:32:23 +02:00
tools s390/tools: fix gcc 8 stringop-truncation warnings 2018-07-02 11:25:05 +02:00
defconfig s390: update defconfig 2018-04-16 10:29:34 +02:00
Kbuild s390/kexec_file: Add purgatory 2018-04-16 09:10:22 +02:00
Kconfig s390/decompressor: support uncompressed kernel 2018-06-25 10:14:40 +02:00
Kconfig.debug License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile s390/decompressor: support extra debug flags 2018-07-02 12:32:24 +02:00