iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/arch/s390/kernel
History
Vasily Gorbik 420f48f636 s390/setup: avoid reserving memory above identity mapping 
Such reserved memory region, if not cleaned up later causes problems when
memblock_free_all() is called to release free pages to the buddy allocator
and those reserved regions are carried over to reserve_bootmem_region()
which marks the pages as PageReserved.

Instead use memblock_set_current_limit() to make sure memblock allocations
do not go over identity mapping (which could happen when "mem=" option
is used or during kdump).

Cc: stable@vger.kernel.org
Fixes: 73045a08cf55 ("s390: unify identity mapping limits handling")
Reported-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2021-11-16 12:29:18 +01:00
..
syscalls
compat: remove some compat entry points
2021-09-08 15:32:35 -07:00
vdso32
s390 updates for 5.15 merge window
2021-08-30 13:07:15 -07:00
vdso64
s390 updates for 5.15 merge window
2021-08-30 13:07:15 -07:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
alternative.c
s390: introduce text_poke_sync()
2021-10-11 20:55:58 +02:00
asm-offsets.c
s390: support command lines longer than 896 bytes
2021-10-26 15:21:31 +02:00
audit.c
audit: add support for the openat2 syscall
2021-10-01 16:52:48 -04:00
audit.h
…
base.S
s390: remove unused s390_base_ext_handler
2020-11-09 11:20:58 +01:00
cache.c
…
compat_audit.c
audit: add support for the openat2 syscall
2021-10-01 16:52:48 -04:00
compat_linux.c
…
compat_linux.h
…
compat_ptrace.h
…
compat_signal.c
s390/signal: switch to using vdso for sigreturn and syscall restart
2021-07-08 22:09:47 +02:00
cpcmd.c
s390/cpcmd: use physical address for command and response
2021-10-26 15:21:28 +02:00
crash_dump.c
s390/dump: introduce boot data 'oldmem_data'
2021-07-27 09:39:16 +02:00
debug.c
s390/sclp: add tracing of SCLP interactions
2021-08-25 11:03:35 +02:00
diag.c
s390: rename dma section to amode31
2021-08-05 14:10:53 +02:00
dis.c
s390/disassembler: add instructions
2021-07-27 09:39:19 +02:00
dumpstack.c
Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2021-11-10 16:15:54 -08:00
early_printk.c
s390/sclp: remove unused sclp_early_printk_forced
2020-09-21 08:08:44 +02:00
early.c
s390: support command lines longer than 896 bytes
2021-10-26 15:21:31 +02:00
ebcdic.c
…
entry.h
s390/boot: allocate amode31 section in decompressor
2021-10-04 09:49:37 +02:00
entry.S
s390: add support for BEAR enhancement facility
2021-10-26 15:21:29 +02:00
fpu.c
s390: convert to generic entry
2021-01-19 12:29:26 +01:00
ftrace.c
s390 updates for the 5.16 merge window
2021-11-06 14:48:06 -07:00
ftrace.h
s390/ftrace: implement hotpatching
2021-08-03 14:31:40 +02:00
guarded_storage.c
…
head64.S
s390/boot: initialize control registers in decompressor
2021-10-04 09:49:37 +02:00
idle.c
s390/time,idle: get rid of unsigned long long
2021-03-08 10:46:27 +01:00
ima_arch.c
s390/kexec_file: Disable kexec_load when IPLed secure
2019-04-29 10:44:03 +02:00
ipl_vmparm.c
s390/cio: remove unused include linux/spinlock.h from cio.h
2021-07-27 09:39:13 +02:00
ipl.c
s390/smp: enable DAT before CPU restart callback is called
2021-08-26 20:22:12 +02:00
irq.c
s390: add support for BEAR enhancement facility
2021-10-26 15:21:29 +02:00
jump_label.c
s390/jump_label: add __init_or_module annotation
2021-10-11 20:55:58 +02:00
kdebugfs.c
…
kexec_elf.c
kexec: Fix file verification on S390
2019-09-10 13:27:51 +01:00
kexec_image.c
kexec_file: split KEXEC_VERIFY_SIG into KEXEC_SIG and KEXEC_SIG_FORCE
2019-08-19 21:54:15 -07:00
kprobes_insn_page.S
s390/kprobes: move insn_page to text segment
2020-10-09 23:45:30 +02:00
kprobes.c
s390 updates for the 5.16 merge window
2021-11-06 14:48:06 -07:00
lgr.c
s390: convert to msecs_to_jiffies()
2020-06-29 16:31:46 +02:00
machine_kexec_file.c
s390: support command lines longer than 896 bytes
2021-10-26 15:21:31 +02:00
machine_kexec_reloc.c
s390/kaslr: add support for R_390_JMP_SLOT relocation type
2020-05-20 10:13:27 +02:00
machine_kexec.c
s390/smp: enable DAT before CPU restart callback is called
2021-08-26 20:22:12 +02:00
Makefile
s390: rename dma section to amode31
2021-08-05 14:10:53 +02:00
mcount.S
s390/ftrace: add HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALL support
2021-10-19 15:39:53 +02:00
module.c
s390/ftrace: implement hotpatching
2021-08-03 14:31:40 +02:00
nmi.c
s390/mcck: move register validation to C code
2021-07-05 12:44:23 +02:00
nospec-branch.c
s390: introduce nospec_uses_trampoline()
2021-10-26 15:21:29 +02:00
nospec-sysfs.c
s390: introduce nospec_uses_trampoline()
2021-10-26 15:21:29 +02:00
numa.c
s390/numa: move code to arch/s390/kernel
2020-08-11 18:16:55 +02:00
os_info.c
s390/dump: introduce boot data 'oldmem_data'
2021-07-27 09:39:16 +02:00
perf_cpum_cf_common.c
s390/cpumf: Allow concurrent access for CPU Measurement Counter Facility
2021-07-05 12:44:23 +02:00
perf_cpum_cf_events.c
s390/cpum_cf,perf: change DFLT_CCERROR counter name
2020-07-21 13:53:56 +02:00
perf_cpum_cf.c
s390/cpumf: cpum_cf PMU displays invalid value after hotplug remove
2021-11-08 14:17:49 +01:00
perf_cpum_sf.c
s390/time: convert tod_clock_base to union
2021-02-13 17:17:54 +01:00
perf_event.c
s390: Get rid of oprofile leftovers
2021-04-22 13:32:39 +01:00
perf_regs.c
perf/arch: Remove perf_sample_data::regs_user_copy
2020-11-09 18:12:34 +01:00
process.c
s390 updates for the 5.16 merge window
2021-11-06 14:48:06 -07:00
processor.c
s390: replace deprecated CPU-hotplug functions
2021-08-05 14:10:53 +02:00
ptrace.c
s390/traps: add struct to access transactional diagnostic block
2021-06-07 17:06:58 +02:00
reipl.S
s390: add missing ENDPROC statements to assembler functions
2019-05-02 13:54:11 +02:00
relocate_kernel.S
s390: add missing ENDPROC statements to assembler functions
2019-05-02 13:54:11 +02:00
runtime_instr.c
s390/runtime_instrumentation: fix storage key handling
2020-08-17 13:17:10 +02:00
setup.c
s390/setup: avoid reserving memory above identity mapping
2021-11-16 12:29:18 +01:00
signal.c
s390: remove do_signal() prototype and do_notify_resume() function
2021-08-25 11:03:34 +02:00
smp.c
memblock: rename memblock_free to memblock_phys_free
2021-11-06 13:30:41 -07:00
stacktrace.c
kprobes: treewide: Make it harder to refer kretprobe_trampoline directly
2021-09-30 21:24:06 -04:00
sthyi.c
s390/sthyi: use register pair instead of register asm
2021-06-18 16:41:22 +02:00
syscall.c
s390: add support for BEAR enhancement facility
2021-10-26 15:21:29 +02:00
sysinfo.c
s390/sysinfo: get rid of register asm
2021-06-18 16:41:23 +02:00
text_amode31.S
s390/diag: make restart_part2 a local label
2021-08-25 11:03:34 +02:00
time.c
s390/vdso: fix initializing and updating of vdso_data
2021-03-25 21:57:26 +01:00
topology.c
s390/topology: fix topology information when calling cpu hotplug notifiers
2021-09-07 13:38:41 +02:00
trace.c
s390/ftrace: fix potential crashes when switching tracers
2020-04-22 16:20:55 +02:00
traps.c
Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2021-11-10 16:15:54 -08:00
unwind_bc.c
s390/unwind: stop gracefully at user mode pt_regs in irq stack
2019-12-18 23:29:26 +01:00
uprobes.c
s390: Fix fall-through warnings for Clang
2021-07-13 14:43:09 -05:00
uv.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
vdso.c
s390/vdso: add minimal compat vdso
2021-07-08 15:37:28 +02:00
vmlinux.lds.S
s390/boot: allocate amode31 section in decompressor
2021-10-04 09:49:37 +02:00
vtime.c
s390/vtime: fix increased steal time accounting
2021-03-15 19:09:25 +01:00