Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index 741e61e..09172f0 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -25,6 +25,7 @@
#include <linux/interrupt.h>
#include <linux/extable.h>
#include <linux/uaccess.h>
+#include <linux/perf_event.h>
extern void die_if_kernel(char *,struct pt_regs *,long, unsigned long *);
@@ -89,7 +90,7 @@
const struct exception_table_entry *fixup;
int si_code = SEGV_MAPERR;
vm_fault_t fault;
- unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
+ unsigned int flags = FAULT_FLAG_DEFAULT;
/* As of EV6, a load into $31/$f31 is a prefetch, and never faults
(or is suppressed by the PALcode). Support that for older CPUs
@@ -116,8 +117,9 @@
#endif
if (user_mode(regs))
flags |= FAULT_FLAG_USER;
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
retry:
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
vma = find_vma(mm, address);
if (!vma)
goto bad_area;
@@ -148,9 +150,9 @@
/* If for any reason at all we couldn't handle the fault,
make sure we exit gracefully rather than endlessly redo
the fault. */
- fault = handle_mm_fault(vma, address, flags);
+ fault = handle_mm_fault(vma, address, flags, regs);
- if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+ if (fault_signal_pending(fault, regs))
return;
if (unlikely(fault & VM_FAULT_ERROR)) {
@@ -164,14 +166,10 @@
}
if (flags & FAULT_FLAG_ALLOW_RETRY) {
- if (fault & VM_FAULT_MAJOR)
- current->maj_flt++;
- else
- current->min_flt++;
if (fault & VM_FAULT_RETRY) {
- flags &= ~FAULT_FLAG_ALLOW_RETRY;
+ flags |= FAULT_FLAG_TRIED;
- /* No need to up_read(&mm->mmap_sem) as we would
+ /* No need to mmap_read_unlock(mm) as we would
* have already released it in __lock_page_or_retry
* in mm/filemap.c.
*/
@@ -180,14 +178,14 @@
}
}
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
return;
/* Something tried to access memory that isn't in our memory map.
Fix it, but check if it's kernel or user first. */
bad_area:
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
if (user_mode(regs))
goto do_sigsegv;
@@ -211,14 +209,14 @@
/* We ran out of memory, or some other thing happened to us that
made us unable to handle the page fault gracefully. */
out_of_memory:
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
if (!user_mode(regs))
goto no_context;
pagefault_out_of_memory();
return;
do_sigbus:
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
/* Send a sigbus, regardless of whether we were in kernel
or user mode. */
force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *) address, 0);
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index e2cbec3..3c42b31 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -24,7 +24,6 @@
#include <linux/gfp.h>
#include <linux/uaccess.h>
-#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/hwrpb.h>
#include <asm/dma.h>
@@ -146,6 +145,8 @@
{
struct crb_struct * crb;
pgd_t *pgd;
+ p4d_t *p4d;
+ pud_t *pud;
pmd_t *pmd;
void *two_pages;
@@ -184,8 +185,10 @@
memset(two_pages, 0, 2*PAGE_SIZE);
pgd = pgd_offset_k(VMALLOC_START);
- pgd_set(pgd, (pmd_t *)two_pages);
- pmd = pmd_offset(pgd, VMALLOC_START);
+ p4d = p4d_offset(pgd, VMALLOC_START);
+ pud = pud_offset(p4d, VMALLOC_START);
+ pud_set(pud, (pmd_t *)two_pages);
+ pmd = pmd_offset(pud, VMALLOC_START);
pmd_set(pmd, (pte_t *)(two_pages + PAGE_SIZE));
if (alpha_using_srm) {
@@ -214,9 +217,9 @@
/* Newer consoles (especially on larger
systems) may require more pages of
PTEs. Grab additional pages as needed. */
- if (pmd != pmd_offset(pgd, vaddr)) {
+ if (pmd != pmd_offset(pud, vaddr)) {
memset(kernel_end, 0, PAGE_SIZE);
- pmd = pmd_offset(pgd, vaddr);
+ pmd = pmd_offset(pud, vaddr);
pmd_set(pmd, (pte_t *)kernel_end);
kernel_end += PAGE_SIZE;
}
@@ -239,21 +242,17 @@
*/
void __init paging_init(void)
{
- unsigned long zones_size[MAX_NR_ZONES] = {0, };
- unsigned long dma_pfn, high_pfn;
+ unsigned long max_zone_pfn[MAX_NR_ZONES] = {0, };
+ unsigned long dma_pfn;
dma_pfn = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
- high_pfn = max_pfn = max_low_pfn;
+ max_pfn = max_low_pfn;
- if (dma_pfn >= high_pfn)
- zones_size[ZONE_DMA] = high_pfn;
- else {
- zones_size[ZONE_DMA] = dma_pfn;
- zones_size[ZONE_NORMAL] = high_pfn - dma_pfn;
- }
+ max_zone_pfn[ZONE_DMA] = dma_pfn;
+ max_zone_pfn[ZONE_NORMAL] = max_pfn;
/* Initialize mem_map[]. */
- free_area_init(zones_size);
+ free_area_init(max_zone_pfn);
/* Initialize the kernel's ZERO_PGE. */
memset((void *)ZERO_PGE, 0, PAGE_SIZE);
diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c
index d0b7337..0636e25 100644
--- a/arch/alpha/mm/numa.c
+++ b/arch/alpha/mm/numa.c
@@ -17,7 +17,6 @@
#include <linux/module.h>
#include <asm/hwrpb.h>
-#include <asm/pgalloc.h>
#include <asm/sections.h>
pg_data_t node_data[MAX_NUMNODES];
@@ -144,8 +143,8 @@
if (!nid && (node_max_pfn < end_kernel_pfn || node_min_pfn > start_kernel_pfn))
panic("kernel loaded out of ram");
- memblock_add(PFN_PHYS(node_min_pfn),
- (node_max_pfn - node_min_pfn) << PAGE_SHIFT);
+ memblock_add_node(PFN_PHYS(node_min_pfn),
+ (node_max_pfn - node_min_pfn) << PAGE_SHIFT, nid);
/* Zone start phys-addr must be 2^(MAX_ORDER-1) aligned.
Note that we round this down, not up - node memory
@@ -202,8 +201,7 @@
void __init paging_init(void)
{
- unsigned int nid;
- unsigned long zones_size[MAX_NR_ZONES] = {0, };
+ unsigned long max_zone_pfn[MAX_NR_ZONES] = {0, };
unsigned long dma_local_pfn;
/*
@@ -215,19 +213,10 @@
*/
dma_local_pfn = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
- for_each_online_node(nid) {
- unsigned long start_pfn = NODE_DATA(nid)->node_start_pfn;
- unsigned long end_pfn = start_pfn + NODE_DATA(nid)->node_present_pages;
+ max_zone_pfn[ZONE_DMA] = dma_local_pfn;
+ max_zone_pfn[ZONE_NORMAL] = max_pfn;
- if (dma_local_pfn >= end_pfn - start_pfn)
- zones_size[ZONE_DMA] = end_pfn - start_pfn;
- else {
- zones_size[ZONE_DMA] = dma_local_pfn;
- zones_size[ZONE_NORMAL] = (end_pfn - start_pfn) - dma_local_pfn;
- }
- node_set_state(nid, N_NORMAL_MEMORY);
- free_area_init_node(nid, zones_size, start_pfn, NULL);
- }
+ free_area_init(max_zone_pfn);
/* Initialize the kernel's ZERO_PGE. */
memset((void *)ZERO_PGE, 0, PAGE_SIZE);