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-rw-r--r--arch/alpha/kernel/traps.c4
-rw-r--r--arch/microblaze/mm/pgtable.c3
-rw-r--r--arch/powerpc/mm/pgtable_32.c7
-rw-r--r--arch/riscv/lib/delay.c4
-rw-r--r--arch/s390/include/asm/facility.h4
-rw-r--r--arch/x86/kernel/aperture_64.c13
-rw-r--r--arch/x86/kernel/unwind_orc.c2
-rw-r--r--arch/x86/mm/init_32.c14
-rw-r--r--arch/x86/xen/mmu_hvm.c37
9 files changed, 44 insertions, 44 deletions
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index e805106409f7..2ae34702456c 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -129,9 +129,7 @@ dik_show_trace(unsigned long *sp, const char *loglvl)
extern char _stext[], _etext[];
unsigned long tmp = *sp;
sp++;
- if (tmp < (unsigned long) &_stext)
- continue;
- if (tmp >= (unsigned long) &_etext)
+ if (!is_kernel_text(tmp))
continue;
printk("%s[<%lx>] %pSR\n", loglvl, tmp, (void *)tmp);
if (i > 40) {
diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
index c1833b159d3b..9f73265aad4e 100644
--- a/arch/microblaze/mm/pgtable.c
+++ b/arch/microblaze/mm/pgtable.c
@@ -34,6 +34,7 @@
#include <linux/mm_types.h>
#include <linux/pgtable.h>
#include <linux/memblock.h>
+#include <linux/kallsyms.h>
#include <asm/pgalloc.h>
#include <linux/io.h>
@@ -171,7 +172,7 @@ void __init mapin_ram(void)
for (s = 0; s < lowmem_size; s += PAGE_SIZE) {
f = _PAGE_PRESENT | _PAGE_ACCESSED |
_PAGE_SHARED | _PAGE_HWEXEC;
- if ((char *) v < _stext || (char *) v >= _etext)
+ if (!is_kernel_text(v))
f |= _PAGE_WRENABLE;
else
/* On the MicroBlaze, no user access
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index fde1ed445ca4..906e4e4328b2 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -33,8 +33,6 @@
#include <mm/mmu_decl.h>
-extern char etext[], _stext[], _sinittext[], _einittext[];
-
static u8 early_fixmap_pagetable[FIXMAP_PTE_SIZE] __page_aligned_data;
notrace void __init early_ioremap_init(void)
@@ -104,14 +102,13 @@ static void __init __mapin_ram_chunk(unsigned long offset, unsigned long top)
{
unsigned long v, s;
phys_addr_t p;
- int ktext;
+ bool ktext;
s = offset;
v = PAGE_OFFSET + s;
p = memstart_addr + s;
for (; s < top; s += PAGE_SIZE) {
- ktext = ((char *)v >= _stext && (char *)v < etext) ||
- ((char *)v >= _sinittext && (char *)v < _einittext);
+ ktext = core_kernel_text(v);
map_kernel_page(v, p, ktext ? PAGE_KERNEL_TEXT : PAGE_KERNEL);
v += PAGE_SIZE;
p += PAGE_SIZE;
diff --git a/arch/riscv/lib/delay.c b/arch/riscv/lib/delay.c
index f51c9a03bca1..49d510ba75fd 100644
--- a/arch/riscv/lib/delay.c
+++ b/arch/riscv/lib/delay.c
@@ -4,10 +4,14 @@
*/
#include <linux/delay.h>
+#include <linux/math.h>
#include <linux/param.h>
#include <linux/timex.h>
+#include <linux/types.h>
#include <linux/export.h>
+#include <asm/processor.h>
+
/*
* This is copies from arch/arm/include/asm/delay.h
*
diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h
index e3aa354ab9f4..94b6919026df 100644
--- a/arch/s390/include/asm/facility.h
+++ b/arch/s390/include/asm/facility.h
@@ -9,8 +9,12 @@
#define __ASM_FACILITY_H
#include <asm/facility-defs.h>
+
+#include <linux/minmax.h>
#include <linux/string.h>
+#include <linux/types.h>
#include <linux/preempt.h>
+
#include <asm/lowcore.h>
#define MAX_FACILITY_BIT (sizeof(stfle_fac_list) * 8)
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 10562885f5fc..af3ba08b684b 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -73,12 +73,23 @@ static int gart_mem_pfn_is_ram(unsigned long pfn)
(pfn >= aperture_pfn_start + aperture_page_count));
}
+#ifdef CONFIG_PROC_VMCORE
+static bool gart_oldmem_pfn_is_ram(struct vmcore_cb *cb, unsigned long pfn)
+{
+ return !!gart_mem_pfn_is_ram(pfn);
+}
+
+static struct vmcore_cb gart_vmcore_cb = {
+ .pfn_is_ram = gart_oldmem_pfn_is_ram,
+};
+#endif
+
static void __init exclude_from_core(u64 aper_base, u32 aper_order)
{
aperture_pfn_start = aper_base >> PAGE_SHIFT;
aperture_page_count = (32 * 1024 * 1024) << aper_order >> PAGE_SHIFT;
#ifdef CONFIG_PROC_VMCORE
- WARN_ON(register_oldmem_pfn_is_ram(&gart_mem_pfn_is_ram));
+ register_vmcore_cb(&gart_vmcore_cb);
#endif
#ifdef CONFIG_PROC_KCORE
WARN_ON(register_mem_pfn_is_ram(&gart_mem_pfn_is_ram));
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index e6f7592790af..2de3c8c5eba9 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -175,7 +175,7 @@ static struct orc_entry *orc_find(unsigned long ip)
}
/* vmlinux .init slow lookup: */
- if (init_kernel_text(ip))
+ if (is_kernel_inittext(ip))
return __orc_find(__start_orc_unwind_ip, __start_orc_unwind,
__stop_orc_unwind_ip - __start_orc_unwind_ip, ip);
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 5cd7ea6d645c..d4e2648a1dfb 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -238,11 +238,7 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
}
}
-/*
- * The <linux/kallsyms.h> already defines is_kernel_text,
- * using '__' prefix not to get in conflict.
- */
-static inline int __is_kernel_text(unsigned long addr)
+static inline int is_x86_32_kernel_text(unsigned long addr)
{
if (addr >= (unsigned long)_text && addr <= (unsigned long)__init_end)
return 1;
@@ -333,8 +329,8 @@ repeat:
addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE +
PAGE_OFFSET + PAGE_SIZE-1;
- if (__is_kernel_text(addr) ||
- __is_kernel_text(addr2))
+ if (is_x86_32_kernel_text(addr) ||
+ is_x86_32_kernel_text(addr2))
prot = PAGE_KERNEL_LARGE_EXEC;
pages_2m++;
@@ -359,7 +355,7 @@ repeat:
*/
pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR);
- if (__is_kernel_text(addr))
+ if (is_x86_32_kernel_text(addr))
prot = PAGE_KERNEL_EXEC;
pages_4k++;
@@ -789,7 +785,7 @@ static void mark_nxdata_nx(void)
*/
unsigned long start = PFN_ALIGN(_etext);
/*
- * This comes from __is_kernel_text upper limit. Also HPAGE where used:
+ * This comes from is_x86_32_kernel_text upper limit. Also HPAGE where used:
*/
unsigned long size = (((unsigned long)__init_end + HPAGE_SIZE) & HPAGE_MASK) - start;
diff --git a/arch/x86/xen/mmu_hvm.c b/arch/x86/xen/mmu_hvm.c
index 57409373750f..509bdee3ab90 100644
--- a/arch/x86/xen/mmu_hvm.c
+++ b/arch/x86/xen/mmu_hvm.c
@@ -9,39 +9,28 @@
#ifdef CONFIG_PROC_VMCORE
/*
- * This function is used in two contexts:
- * - the kdump kernel has to check whether a pfn of the crashed kernel
- * was a ballooned page. vmcore is using this function to decide
- * whether to access a pfn of the crashed kernel.
- * - the kexec kernel has to check whether a pfn was ballooned by the
- * previous kernel. If the pfn is ballooned, handle it properly.
- * Returns 0 if the pfn is not backed by a RAM page, the caller may
+ * The kdump kernel has to check whether a pfn of the crashed kernel
+ * was a ballooned page. vmcore is using this function to decide
+ * whether to access a pfn of the crashed kernel.
+ * Returns "false" if the pfn is not backed by a RAM page, the caller may
* handle the pfn special in this case.
*/
-static int xen_oldmem_pfn_is_ram(unsigned long pfn)
+static bool xen_vmcore_pfn_is_ram(struct vmcore_cb *cb, unsigned long pfn)
{
struct xen_hvm_get_mem_type a = {
.domid = DOMID_SELF,
.pfn = pfn,
};
- int ram;
- if (HYPERVISOR_hvm_op(HVMOP_get_mem_type, &a))
- return -ENXIO;
-
- switch (a.mem_type) {
- case HVMMEM_mmio_dm:
- ram = 0;
- break;
- case HVMMEM_ram_rw:
- case HVMMEM_ram_ro:
- default:
- ram = 1;
- break;
+ if (HYPERVISOR_hvm_op(HVMOP_get_mem_type, &a)) {
+ pr_warn_once("Unexpected HVMOP_get_mem_type failure\n");
+ return true;
}
-
- return ram;
+ return a.mem_type != HVMMEM_mmio_dm;
}
+static struct vmcore_cb xen_vmcore_cb = {
+ .pfn_is_ram = xen_vmcore_pfn_is_ram,
+};
#endif
static void xen_hvm_exit_mmap(struct mm_struct *mm)
@@ -75,6 +64,6 @@ void __init xen_hvm_init_mmu_ops(void)
if (is_pagetable_dying_supported())
pv_ops.mmu.exit_mmap = xen_hvm_exit_mmap;
#ifdef CONFIG_PROC_VMCORE
- WARN_ON(register_oldmem_pfn_is_ram(&xen_oldmem_pfn_is_ram));
+ register_vmcore_cb(&xen_vmcore_cb);
#endif
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 23:11:32 +0000