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s390/sysctl: Remove "vm/allocate_pgste" sysctl

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Remove the not needed "vm/allocate_pgste" sysctl. It has no effect
anymore. However this is a user space visible change. It shouldn't cause
any problems, however if it does this needs to be partially reverted.

Note that some distributions set
vm/allocate_pgste=1

in one of the various sysctl configuration files. Besides a warning about
the (now) non-existent procfs file this doesn't cause any problems.

Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Heiko Carstens
2025-03-10 12:43:01 +01:00
committed by Vasily Gorbik
parent 174cb82a57
commit 46ba4d0bfc
2 changed files with 0 additions and 26 deletions
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arch/s390/include/asm/pgalloc.h
-1
View File
@@ -26,7 +26,6 @@ unsigned long *page_table_alloc(struct mm_struct *);
struct ptdesc *page_table_alloc_pgste(struct mm_struct *mm);
void page_table_free(struct mm_struct *, unsigned long *);
void page_table_free_pgste(struct ptdesc *ptdesc);
extern int page_table_allocate_pgste;
static inline void crst_table_init(unsigned long *crst, unsigned long entry)
{
arch/s390/mm/pgalloc.c
-25
View File
@@ -16,31 +16,6 @@
#include <asm/tlb.h>
#include <asm/tlbflush.h>
#ifdef CONFIG_PGSTE
int page_table_allocate_pgste = 0;
EXPORT_SYMBOL(page_table_allocate_pgste);
static const struct ctl_table page_table_sysctl[] = {
{
.procname = "allocate_pgste",
.data = &page_table_allocate_pgste,
.maxlen = sizeof(int),
.mode = S_IRUGO | S_IWUSR,
.proc_handler = proc_dointvec_minmax,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
};
static int __init page_table_register_sysctl(void)
{
return register_sysctl("vm", page_table_sysctl) ? 0 : -ENOMEM;
}
__initcall(page_table_register_sysctl);
#endif /* CONFIG_PGSTE */
unsigned long *crst_table_alloc(struct mm_struct *mm)
{
struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL, CRST_ALLOC_ORDER);