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/um/kernel/trap.c b/arch/um/kernel/trap.c
index e62296c..ad12f78 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -10,7 +10,6 @@
#include <linux/uaccess.h>
#include <linux/sched/debug.h>
#include <asm/current.h>
-#include <asm/pgtable.h>
#include <asm/tlbflush.h>
#include <arch.h>
#include <as-layout.h>
@@ -27,12 +26,10 @@
{
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
- pgd_t *pgd;
- pud_t *pud;
pmd_t *pmd;
pte_t *pte;
int err = -EFAULT;
- unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
+ unsigned int flags = FAULT_FLAG_DEFAULT;
*code_out = SEGV_MAPERR;
@@ -46,7 +43,7 @@
if (is_user)
flags |= FAULT_FLAG_USER;
retry:
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
vma = find_vma(mm, address);
if (!vma)
goto out;
@@ -74,7 +71,7 @@
do {
vm_fault_t fault;
- fault = handle_mm_fault(vma, address, flags);
+ fault = handle_mm_fault(vma, address, flags, NULL);
if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
goto out_nosemaphore;
@@ -91,21 +88,14 @@
BUG();
}
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;
goto retry;
}
}
- pgd = pgd_offset(mm, address);
- pud = pud_offset(pgd, address);
- pmd = pmd_offset(pud, address);
+ pmd = pmd_off(mm, address);
pte = pte_offset_kernel(pmd, address);
} while (!pte_present(*pte));
err = 0;
@@ -122,7 +112,7 @@
#endif
flush_tlb_page(vma, address);
out:
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
out_nosemaphore:
return err;
@@ -131,7 +121,7 @@
* We ran out of memory, call the OOM killer, and return the userspace
* (which will retry the fault, or kill us if we got oom-killed).
*/
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
if (!is_user)
goto out_nosemaphore;
pagefault_out_of_memory();