linux_dsm_epyc7002/arch/s390
Heiko Carstens 3c1a3bcea9 s390/maccess: improve s390_kernel_write()
Use the sturg instruction instead of the stura instruction. This allows to
modify up to eight bytes in a row instead of only four.

For function tracer enabling and disabling this reduces the time needed to
modify the text sections by 50%, since for each mcount call site six bytes
need to be changed.

Also remove the EXTABLE entries, since calls to this function are not
supposed to fail.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-03-25 11:49:44 +01:00
..
appldata s390: appldata: drop owner assignment from platform_drivers 2014-10-20 16:20:13 +02:00
boot s390: remove "64" suffix from a couple of files 2015-03-25 11:49:34 +01:00
configs s390: update default configuration 2015-01-22 12:16:09 +01:00
crypto s390: remove test_facility(2) (== z/Architecture mode active) checks 2015-03-25 11:49:37 +01:00
hypfs s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
include s390/maccess: remove potentially broken probe_kernel_write() 2015-03-25 11:49:43 +01:00
kernel s390/maccess: remove potentially broken probe_kernel_write() 2015-03-25 11:49:43 +01:00
kvm KVM: s390: non-LPAR case obsolete during facilities mask init 2015-03-04 10:33:25 +01:00
lib s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
mm s390/maccess: improve s390_kernel_write() 2015-03-25 11:49:44 +01:00
net s390/bpf: Zero extend parameters before calling C function 2015-01-15 11:10:41 +01:00
oprofile s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
pci s390: remove test_facility(2) (== z/Architecture mode active) checks 2015-03-25 11:49:37 +01:00
defconfig s390: update default configuration 2015-01-22 12:16:09 +01:00
Kbuild s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
Kconfig s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
Kconfig.debug
Makefile s390: remove 31 bit support 2015-03-25 11:49:33 +01:00