s390/vmalloc: have separate modules area

Browse source

Add a special module area on top of the vmalloc area, which may be only
used for modules and bpf jit generated code.
This makes sure that inter module branches will always happen without a
trampoline and in addition having all the code within a 2GB frame is
branch prediction unit friendly.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

...

This commit is contained in:

Heiko Carstens 2012-10-05 16:52:18 +02:00 • committed by Martin Schwidefsky

parent 021d48be48

commit c972cc60c2

4 changed files with 46 additions and 12 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

21

arch/s390/include/asm/pgtable.h

View file

11

arch/s390/kernel/module.c

View file

13

arch/s390/kernel/setup.c

View file

13

arch/s390/mm/dump_pagetables.c

View file