linux-stable/arch/s390
Vasily Gorbik e006222b57 s390/mm: optimize debugfs ptdump kasan zero page walking
Kasan zero p4d/pud/pmd/pte are always filled in with corresponding
kasan zero entries. Walking kasan zero page backed area is time
consuming and unnecessary. When kasan zero p4d/pud/pmd is encountered,
it eventually points to the kasan zero page always with the same
attributes and nothing but it, therefore zero p4d/pud/pmd could
be jumped over.

Also adds a space between address range and pages number to separate
them from each other when pages number is huge.

0x0018000000000000-0x0018000010000000       256M PMD RW X
0x0018000010000000-0x001bfffff0000000 1073741312M PTE RO X
0x001bfffff0000000-0x001bfffff0001000         4K PTE RW X

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-10-09 11:21:30 +02:00
..
appldata s390/appldata: do not use stack buffers for hardware data 2018-10-09 11:20:52 +02:00
boot s390/kasan: use noexec and large pages 2018-10-09 11:21:24 +02:00
configs s390: update defconfigs 2018-04-27 06:51:31 +02:00
crypto s390/crypto: Fix return code checking in cbc_paes_crypt() 2018-09-04 10:58:17 +02:00
hypfs s390/hypfs: do not use stack buffers for hardware data 2018-10-09 11:20:53 +02:00
include s390/kasan: add option for 4-level paging support 2018-10-09 11:21:29 +02:00
kernel s390/kasan: add option for 4-level paging support 2018-10-09 11:21:29 +02:00
kvm KVM: s390: Properly lock mm context allow_gmap_hpage_1m setting 2018-09-04 11:40:26 +02:00
lib s390/kasan: avoid user access code instrumentation 2018-10-09 11:21:21 +02:00
mm s390/mm: optimize debugfs ptdump kasan zero page walking 2018-10-09 11:21:30 +02:00
net Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2018-08-13 19:07:17 -07:00
numa s390/numa: move initial setup of node_to_cpumask_map 2018-08-01 07:48:33 +02:00
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: remove fmb address from debug output 2018-08-16 14:49:13 +02:00
purgatory s390: clean up stacks setup 2018-09-20 13:20:29 +02:00
scripts s390/build: add *.o.chkbss files to targets list 2018-07-02 12:32:23 +02:00
tools Minor code cleanups for PPC. 2018-08-19 10:38:36 -07:00
defconfig s390/zcrypt: multiple zcrypt device nodes support 2018-10-08 09:09:58 +02:00
Kbuild s390/kexec_file: Add purgatory 2018-04-16 09:10:22 +02:00
Kconfig s390/kasan: add option for 4-level paging support 2018-10-09 11:21:29 +02:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile s390/kasan: double the stack size 2018-10-09 11:21:21 +02:00