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Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/kernel/setup.c9
-rw-r--r--arch/s390/kernel/syscalls/syscall.tbl2
-rw-r--r--arch/s390/mm/fault.c2
3 files changed, 9 insertions, 4 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index fe14beb338e5..5a01872f5984 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -677,8 +677,9 @@ static void __init reserve_crashkernel(void)
return;
}
low = crash_base ?: low;
- crash_base = memblock_find_in_range(low, high, crash_size,
- KEXEC_CRASH_MEM_ALIGN);
+ crash_base = memblock_phys_alloc_range(crash_size,
+ KEXEC_CRASH_MEM_ALIGN,
+ low, high);
}
if (!crash_base) {
@@ -687,8 +688,10 @@ static void __init reserve_crashkernel(void)
return;
}
- if (register_memory_notifier(&kdump_mem_nb))
+ if (register_memory_notifier(&kdump_mem_nb)) {
+ memblock_free(crash_base, crash_size);
return;
+ }
if (!oldmem_data.start && MACHINE_IS_VM)
diag10_range(PFN_DOWN(crash_base), PFN_DOWN(crash_size));
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index aa705e1bd0dc..aa9d68b8ee14 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -449,3 +449,5 @@
444 common landlock_create_ruleset sys_landlock_create_ruleset sys_landlock_create_ruleset
445 common landlock_add_rule sys_landlock_add_rule sys_landlock_add_rule
446 common landlock_restrict_self sys_landlock_restrict_self sys_landlock_restrict_self
+# 447 reserved for memfd_secret
+448 common process_mrelease sys_process_mrelease sys_process_mrelease
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 212632d57db9..a834e4672f72 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -822,7 +822,7 @@ void do_secure_storage_access(struct pt_regs *regs)
break;
case KERNEL_FAULT:
page = phys_to_page(addr);
- if (unlikely(!try_get_page(page)))
+ if (unlikely(!try_get_compound_head(page, 1)))
break;
rc = arch_make_page_accessible(page);
put_page(page);