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-rw-r--r--arch/s390/boot/ipl_parm.c2
-rw-r--r--arch/s390/boot/kaslr.c2
-rw-r--r--arch/s390/include/asm/hugetlb.h2
-rw-r--r--arch/s390/include/asm/kasan.h2
-rw-r--r--arch/s390/include/asm/pgtable.h15
-rw-r--r--arch/s390/include/asm/tlbflush.h1
-rw-r--r--arch/s390/kernel/asm-offsets.c2
-rw-r--r--arch/s390/kernel/dumpstack.c13
-rw-r--r--arch/s390/kernel/machine_kexec.c1
-rw-r--r--arch/s390/kernel/ptrace.c1
-rw-r--r--arch/s390/kernel/uv.c4
-rw-r--r--arch/s390/kernel/vdso.c5
-rw-r--r--arch/s390/kvm/gaccess.c6
-rw-r--r--arch/s390/kvm/interrupt.c4
-rw-r--r--arch/s390/kvm/kvm-s390.c30
-rw-r--r--arch/s390/kvm/priv.c36
-rw-r--r--arch/s390/mm/dump_pagetables.c1
-rw-r--r--arch/s390/mm/extmem.c2
-rw-r--r--arch/s390/mm/fault.c17
-rw-r--r--arch/s390/mm/gmap.c78
-rw-r--r--arch/s390/mm/init.c1
-rw-r--r--arch/s390/mm/kasan_init.c2
-rw-r--r--arch/s390/mm/pageattr.c13
-rw-r--r--arch/s390/mm/pgalloc.c2
-rw-r--r--arch/s390/mm/pgtable.c1
-rw-r--r--arch/s390/mm/vmem.c1
-rw-r--r--arch/s390/pci/pci_mmio.c4
27 files changed, 111 insertions, 137 deletions
diff --git a/arch/s390/boot/ipl_parm.c b/arch/s390/boot/ipl_parm.c
index 357adad991d2..8e222a666025 100644
--- a/arch/s390/boot/ipl_parm.c
+++ b/arch/s390/boot/ipl_parm.c
@@ -2,12 +2,12 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/ctype.h>
+#include <linux/pgtable.h>
#include <asm/ebcdic.h>
#include <asm/sclp.h>
#include <asm/sections.h>
#include <asm/boot_data.h>
#include <asm/facility.h>
-#include <asm/pgtable.h>
#include <asm/uv.h>
#include "boot.h"
diff --git a/arch/s390/boot/kaslr.c b/arch/s390/boot/kaslr.c
index 5591243d673e..d4442163ffa9 100644
--- a/arch/s390/boot/kaslr.c
+++ b/arch/s390/boot/kaslr.c
@@ -2,8 +2,8 @@
/*
* Copyright IBM Corp. 2019
*/
+#include <linux/pgtable.h>
#include <asm/mem_detect.h>
-#include <asm/pgtable.h>
#include <asm/cpacf.h>
#include <asm/timex.h>
#include <asm/sclp.h>
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
index 9ddf4a43a590..60f9241e5e4a 100644
--- a/arch/s390/include/asm/hugetlb.h
+++ b/arch/s390/include/asm/hugetlb.h
@@ -9,8 +9,8 @@
#ifndef _ASM_S390_HUGETLB_H
#define _ASM_S390_HUGETLB_H
+#include <linux/pgtable.h>
#include <asm/page.h>
-#include <asm/pgtable.h>
#define hugetlb_free_pgd_range free_pgd_range
#define hugepages_supported() (MACHINE_HAS_EDAT1)
diff --git a/arch/s390/include/asm/kasan.h b/arch/s390/include/asm/kasan.h
index 70930fe5c496..89d6886040c8 100644
--- a/arch/s390/include/asm/kasan.h
+++ b/arch/s390/include/asm/kasan.h
@@ -2,8 +2,6 @@
#ifndef __ASM_KASAN_H
#define __ASM_KASAN_H
-#include <asm/pgtable.h>
-
#ifdef CONFIG_KASAN
#define KASAN_SHADOW_SCALE_SHIFT 3
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index e2528e057980..19d603bd1f36 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1229,7 +1229,6 @@ static inline pte_t mk_pte(struct page *page, pgprot_t pgprot)
#define p4d_index(address) (((address) >> P4D_SHIFT) & (PTRS_PER_P4D-1))
#define pud_index(address) (((address) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
-#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE-1))
#define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN)
#define pud_deref(pud) (pud_val(pud) & _REGION_ENTRY_ORIGIN)
@@ -1260,7 +1259,6 @@ static inline pgd_t *pgd_offset_raw(pgd_t *pgd, unsigned long address)
}
#define pgd_offset(mm, address) pgd_offset_raw(READ_ONCE((mm)->pgd), address)
-#define pgd_offset_k(address) pgd_offset(&init_mm, address)
static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address)
{
@@ -1275,6 +1273,7 @@ static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address)
return (pud_t *) p4d_deref(*p4d) + pud_index(address);
return (pud_t *) p4d;
}
+#define pud_offset pud_offset
static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
{
@@ -1282,17 +1281,13 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
return (pmd_t *) pud_deref(*pud) + pmd_index(address);
return (pmd_t *) pud;
}
+#define pmd_offset pmd_offset
-static inline pte_t *pte_offset(pmd_t *pmd, unsigned long address)
+static inline unsigned long pmd_page_vaddr(pmd_t pmd)
{
- return (pte_t *) pmd_deref(*pmd) + pte_index(address);
+ return (unsigned long) pmd_deref(pmd);
}
-#define pte_offset_kernel(pmd, address) pte_offset(pmd, address)
-#define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address)
-
-static inline void pte_unmap(pte_t *pte) { }
-
static inline bool gup_fast_permitted(unsigned long start, unsigned long end)
{
return end <= current->mm->context.asce_limit;
@@ -1683,6 +1678,4 @@ extern void s390_reset_cmma(struct mm_struct *mm);
#define HAVE_ARCH_UNMAPPED_AREA
#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
-#include <asm-generic/pgtable.h>
-
#endif /* _S390_PAGE_H */
diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h
index 82703e03f35d..2204704840ea 100644
--- a/arch/s390/include/asm/tlbflush.h
+++ b/arch/s390/include/asm/tlbflush.h
@@ -6,7 +6,6 @@
#include <linux/sched.h>
#include <asm/processor.h>
#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
/*
* Flush all TLB entries on the local CPU.
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index e80f0e6f5972..165031bd3370 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -11,9 +11,9 @@
#include <linux/kvm_host.h>
#include <linux/sched.h>
#include <linux/purgatory.h>
+#include <linux/pgtable.h>
#include <asm/idle.h>
#include <asm/vdso.h>
-#include <asm/pgtable.h>
#include <asm/gmap.h>
#include <asm/nmi.h>
#include <asm/stacktrace.h>
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 2c122d8bab93..0dc4b258b98d 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -126,15 +126,16 @@ unknown:
return -EINVAL;
}
-void show_stack(struct task_struct *task, unsigned long *stack)
+void show_stack(struct task_struct *task, unsigned long *stack,
+ const char *loglvl)
{
struct unwind_state state;
- printk("Call Trace:\n");
+ printk("%sCall Trace:\n", loglvl);
unwind_for_each_frame(&state, task, NULL, (unsigned long) stack)
- printk(state.reliable ? " [<%016lx>] %pSR \n" :
- "([<%016lx>] %pSR)\n",
- state.ip, (void *) state.ip);
+ printk(state.reliable ? "%s [<%016lx>] %pSR \n" :
+ "%s([<%016lx>] %pSR)\n",
+ loglvl, state.ip, (void *) state.ip);
debug_show_held_locks(task ? : current);
}
@@ -175,7 +176,7 @@ void show_regs(struct pt_regs *regs)
show_registers(regs);
/* Show stack backtrace if pt_regs is from kernel mode */
if (!user_mode(regs))
- show_stack(NULL, (unsigned long *) regs->gprs[15]);
+ show_stack(NULL, (unsigned long *) regs->gprs[15], KERN_DEFAULT);
show_last_breaking_event(regs);
}
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 3a854cb5a4c6..93c6b8932fbd 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -16,7 +16,6 @@
#include <linux/debug_locks.h>
#include <asm/cio.h>
#include <asm/setup.h>
-#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/smp.h>
#include <asm/ipl.h>
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 994a8b86edae..ce60a459a143 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -25,7 +25,6 @@
#include <linux/compat.h>
#include <trace/syscall.h>
#include <asm/page.h>
-#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <linux/uaccess.h>
#include <asm/unistd.h>
diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c
index 4c0677fc8904..66e89b2866d7 100644
--- a/arch/s390/kernel/uv.c
+++ b/arch/s390/kernel/uv.c
@@ -205,7 +205,7 @@ int gmap_make_secure(struct gmap *gmap, unsigned long gaddr, void *uvcb)
again:
rc = -EFAULT;
- down_read(&gmap->mm->mmap_sem);
+ mmap_read_lock(gmap->mm);
uaddr = __gmap_translate(gmap, gaddr);
if (IS_ERR_VALUE(uaddr))
@@ -234,7 +234,7 @@ again:
pte_unmap_unlock(ptep, ptelock);
unlock_page(page);
out:
- up_read(&gmap->mm->mmap_sem);
+ mmap_read_unlock(gmap->mm);
if (rc == -EAGAIN) {
wait_on_page_writeback(page);
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index bcc9bdb39ba2..c4baefaa6e34 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -21,7 +21,6 @@
#include <linux/memblock.h>
#include <linux/compat.h>
#include <asm/asm-offsets.h>
-#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/mmu_context.h>
@@ -208,7 +207,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
* it at vdso_base which is the "natural" base for it, but we might
* fail and end up putting it elsewhere.
*/
- if (down_write_killable(&mm->mmap_sem))
+ if (mmap_write_lock_killable(mm))
return -EINTR;
vdso_base = get_unmapped_area(NULL, 0, vdso_pages << PAGE_SHIFT, 0, 0);
if (IS_ERR_VALUE(vdso_base)) {
@@ -239,7 +238,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
rc = 0;
out_up:
- up_write(&mm->mmap_sem);
+ mmap_write_unlock(mm);
return rc;
}
diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c
index 47a67a958107..6d6b57059493 100644
--- a/arch/s390/kvm/gaccess.c
+++ b/arch/s390/kvm/gaccess.c
@@ -9,8 +9,8 @@
#include <linux/vmalloc.h>
#include <linux/mm_types.h>
#include <linux/err.h>
+#include <linux/pgtable.h>
-#include <asm/pgtable.h>
#include <asm/gmap.h>
#include "kvm-s390.h"
#include "gaccess.h"
@@ -1173,7 +1173,7 @@ int kvm_s390_shadow_fault(struct kvm_vcpu *vcpu, struct gmap *sg,
int dat_protection, fake;
int rc;
- down_read(&sg->mm->mmap_sem);
+ mmap_read_lock(sg->mm);
/*
* We don't want any guest-2 tables to change - so the parent
* tables/pointers we read stay valid - unshadowing is however
@@ -1202,6 +1202,6 @@ shadow_page:
if (!rc)
rc = gmap_shadow_page(sg, saddr, __pte(pte.val));
ipte_unlock(vcpu);
- up_read(&sg->mm->mmap_sem);
+ mmap_read_unlock(sg->mm);
return rc;
}
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index a4d4ca2769bd..1608fd99bbee 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -2767,10 +2767,10 @@ static struct page *get_map_page(struct kvm *kvm, u64 uaddr)
{
struct page *page = NULL;
- down_read(&kvm->mm->mmap_sem);
+ mmap_read_lock(kvm->mm);
get_user_pages_remote(NULL, kvm->mm, uaddr, 1, FOLL_WRITE,
&page, NULL, NULL);
- up_read(&kvm->mm->mmap_sem);
+ mmap_read_unlock(kvm->mm);
return page;
}
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 22058ea9b8eb..d0ff26d157bc 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -31,11 +31,11 @@
#include <linux/bitmap.h>
#include <linux/sched/signal.h>
#include <linux/string.h>
+#include <linux/pgtable.h>
#include <asm/asm-offsets.h>
#include <asm/lowcore.h>
#include <asm/stp.h>
-#include <asm/pgtable.h>
#include <asm/gmap.h>
#include <asm/nmi.h>
#include <asm/switch_to.h>
@@ -763,9 +763,9 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap)
r = -EINVAL;
else {
r = 0;
- down_write(&kvm->mm->mmap_sem);
+ mmap_write_lock(kvm->mm);
kvm->mm->context.allow_gmap_hpage_1m = 1;
- up_write(&kvm->mm->mmap_sem);
+ mmap_write_unlock(kvm->mm);
/*
* We might have to create fake 4k page
* tables. To avoid that the hardware works on
@@ -1815,7 +1815,7 @@ static long kvm_s390_get_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
if (!keys)
return -ENOMEM;
- down_read(&current->mm->mmap_sem);
+ mmap_read_lock(current->mm);
srcu_idx = srcu_read_lock(&kvm->srcu);
for (i = 0; i < args->count; i++) {
hva = gfn_to_hva(kvm, args->start_gfn + i);
@@ -1829,7 +1829,7 @@ static long kvm_s390_get_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
break;
}
srcu_read_unlock(&kvm->srcu, srcu_idx);
- up_read(&current->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
if (!r) {
r = copy_to_user((uint8_t __user *)args->skeydata_addr, keys,
@@ -1873,7 +1873,7 @@ static long kvm_s390_set_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
goto out;
i = 0;
- down_read(&current->mm->mmap_sem);
+ mmap_read_lock(current->mm);
srcu_idx = srcu_read_lock(&kvm->srcu);
while (i < args->count) {
unlocked = false;
@@ -1900,7 +1900,7 @@ static long kvm_s390_set_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
i++;
}
srcu_read_unlock(&kvm->srcu, srcu_idx);
- up_read(&current->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
out:
kvfree(keys);
return r;
@@ -2089,14 +2089,14 @@ static int kvm_s390_get_cmma_bits(struct kvm *kvm,
if (!values)
return -ENOMEM;
- down_read(&kvm->mm->mmap_sem);
+ mmap_read_lock(kvm->mm);
srcu_idx = srcu_read_lock(&kvm->srcu);
if (peek)
ret = kvm_s390_peek_cmma(kvm, args, values, bufsize);
else
ret = kvm_s390_get_cmma(kvm, args, values, bufsize);
srcu_read_unlock(&kvm->srcu, srcu_idx);
- up_read(&kvm->mm->mmap_sem);
+ mmap_read_unlock(kvm->mm);
if (kvm->arch.migration_mode)
args->remaining = atomic64_read(&kvm->arch.cmma_dirty_pages);
@@ -2146,7 +2146,7 @@ static int kvm_s390_set_cmma_bits(struct kvm *kvm,
goto out;
}
- down_read(&kvm->mm->mmap_sem);
+ mmap_read_lock(kvm->mm);
srcu_idx = srcu_read_lock(&kvm->srcu);
for (i = 0; i < args->count; i++) {
hva = gfn_to_hva(kvm, args->start_gfn + i);
@@ -2161,12 +2161,12 @@ static int kvm_s390_set_cmma_bits(struct kvm *kvm,
set_pgste_bits(kvm->mm, hva, mask, pgstev);
}
srcu_read_unlock(&kvm->srcu, srcu_idx);
- up_read(&kvm->mm->mmap_sem);
+ mmap_read_unlock(kvm->mm);
if (!kvm->mm->context.uses_cmm) {
- down_write(&kvm->mm->mmap_sem);
+ mmap_write_lock(kvm->mm);
kvm->mm->context.uses_cmm = 1;
- up_write(&kvm->mm->mmap_sem);
+ mmap_write_unlock(kvm->mm);
}
out:
vfree(bits);
@@ -2239,9 +2239,9 @@ static int kvm_s390_handle_pv(struct kvm *kvm, struct kvm_pv_cmd *cmd)
if (r)
break;
- down_write(&current->mm->mmap_sem);
+ mmap_write_lock(current->mm);
r = gmap_mark_unmergeable();
- up_write(&current->mm->mmap_sem);
+ mmap_write_unlock(current->mm);
if (r)
break;
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 893893642415..96ae368aa0a2 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -13,6 +13,7 @@
#include <linux/errno.h>
#include <linux/compat.h>
#include <linux/mm_types.h>
+#include <linux/pgtable.h>
#include <asm/asm-offsets.h>
#include <asm/facility.h>
@@ -20,7 +21,6 @@
#include <asm/debug.h>
#include <asm/ebcdic.h>
#include <asm/sysinfo.h>
-#include <asm/pgtable.h>
#include <asm/page-states.h>
#include <asm/pgalloc.h>
#include <asm/gmap.h>
@@ -270,18 +270,18 @@ static int handle_iske(struct kvm_vcpu *vcpu)
return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
retry:
unlocked = false;
- down_read(&current->mm->mmap_sem);
+ mmap_read_lock(current->mm);
rc = get_guest_storage_key(current->mm, vmaddr, &key);
if (rc) {
rc = fixup_user_fault(current, current->mm, vmaddr,
FAULT_FLAG_WRITE, &unlocked);
if (!rc) {
- up_read(&current->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
goto retry;
}
}
- up_read(&current->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
if (rc == -EFAULT)
return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
if (rc < 0)
@@ -317,17 +317,17 @@ static int handle_rrbe(struct kvm_vcpu *vcpu)
return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
retry:
unlocked = false;
- down_read(&current->mm->mmap_sem);
+ mmap_read_lock(current->mm);
rc = reset_guest_reference_bit(current->mm, vmaddr);
if (rc < 0) {
rc = fixup_user_fault(current, current->mm, vmaddr,
FAULT_FLAG_WRITE, &unlocked);
if (!rc) {
- up_read(&current->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
goto retry;
}
}
- up_read(&current->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
if (rc == -EFAULT)
return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
if (rc < 0)
@@ -385,7 +385,7 @@ static int handle_sske(struct kvm_vcpu *vcpu)
if (kvm_is_error_hva(vmaddr))
return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
- down_read(&current->mm->mmap_sem);
+ mmap_read_lock(current->mm);
rc = cond_set_guest_storage_key(current->mm, vmaddr, key, &oldkey,
m3 & SSKE_NQ, m3 & SSKE_MR,
m3 & SSKE_MC);
@@ -395,7 +395,7 @@ static int handle_sske(struct kvm_vcpu *vcpu)
FAULT_FLAG_WRITE, &unlocked);
rc = !rc ? -EAGAIN : rc;
}
- up_read(&current->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
if (rc == -EFAULT)
return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
if (rc < 0)
@@ -1091,7 +1091,7 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
if (rc)
return rc;
- down_read(&current->mm->mmap_sem);
+ mmap_read_lock(current->mm);
rc = cond_set_guest_storage_key(current->mm, vmaddr,
key, NULL, nq, mr, mc);
if (rc < 0) {
@@ -1099,7 +1099,7 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
FAULT_FLAG_WRITE, &unlocked);
rc = !rc ? -EAGAIN : rc;
}
- up_read(&current->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
if (rc == -EFAULT)
return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
if (rc == -EAGAIN)
@@ -1122,7 +1122,7 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
}
/*
- * Must be called with relevant read locks held (kvm->mm->mmap_sem, kvm->srcu)
+ * Must be called with relevant read locks held (kvm->mm->mmap_lock, kvm->srcu)
*/
static inline int __do_essa(struct kvm_vcpu *vcpu, const int orc)
{
@@ -1220,9 +1220,9 @@ static int handle_essa(struct kvm_vcpu *vcpu)
* already correct, we do nothing and avoid the lock.
*/
if (vcpu->kvm->mm->context.uses_cmm == 0) {
- down_write(&vcpu->kvm->mm->mmap_sem);
+ mmap_write_lock(vcpu->kvm->mm);
vcpu->kvm->mm->context.uses_cmm = 1;
- up_write(&vcpu->kvm->mm->mmap_sem);
+ mmap_write_unlock(vcpu->kvm->mm);
}
/*
* If we are here, we are supposed to have CMMA enabled in
@@ -1239,11 +1239,11 @@ static int handle_essa(struct kvm_vcpu *vcpu)
} else {
int srcu_idx;
- down_read(&vcpu->kvm->mm->mmap_sem);
+ mmap_read_lock(vcpu->kvm->mm);
srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
i = __do_essa(vcpu, orc);
srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx);
- up_read(&vcpu->kvm->mm->mmap_sem);
+ mmap_read_unlock(vcpu->kvm->mm);
if (i < 0)
return i;
/* Account for the possible extra cbrl entry */
@@ -1251,10 +1251,10 @@ static int handle_essa(struct kvm_vcpu *vcpu)
}
vcpu->arch.sie_block->cbrlo &= PAGE_MASK; /* reset nceo */
cbrlo = phys_to_virt(vcpu->arch.sie_block->cbrlo);
- down_read(&gmap->mm->mmap_sem);
+ mmap_read_lock(gmap->mm);
for (i = 0; i < entries; ++i)
__gmap_zap(gmap, cbrlo[i]);
- up_read(&gmap->mm->mmap_sem);
+ mmap_read_unlock(gmap->mm);
return 0;
}
diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c
index 5d67b81c704a..c2ac9b8ae612 100644
--- a/arch/s390/mm/dump_pagetables.c
+++ b/arch/s390/mm/dump_pagetables.c
@@ -6,7 +6,6 @@
#include <linux/kasan.h>
#include <asm/kasan.h>
#include <asm/sections.h>
-#include <asm/pgtable.h>
static unsigned long max_addr;
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index fd0dae9d10f4..9e0aa7aa03ba 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -20,9 +20,9 @@
#include <linux/ctype.h>
#include <linux/ioport.h>
#include <linux/refcount.h>
+#include <linux/pgtable.h>
#include <asm/diag.h>
#include <asm/page.h>
-#include <asm/pgtable.h>
#include <asm/ebcdic.h>
#include <asm/errno.h>
#include <asm/extmem.h>
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index dedc28be27ab..6a24751557f0 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -33,7 +33,6 @@
#include <linux/hugetlb.h>
#include <asm/asm-offsets.h>
#include <asm/diag.h>
-#include <asm/pgtable.h>
#include <asm/gmap.h>
#include <asm/irq.h>
#include <asm/mmu_context.h>
@@ -434,7 +433,7 @@ static inline vm_fault_t do_exception(struct pt_regs *regs, int access)
flags |= FAULT_FLAG_USER;
if (access == VM_WRITE || (trans_exc_code & store_indication) == 0x400)
flags |= FAULT_FLAG_WRITE;
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
gmap = NULL;
if (IS_ENABLED(CONFIG_PGSTE) && type == GMAP_FAULT) {
@@ -508,14 +507,14 @@ retry:
if (IS_ENABLED(CONFIG_PGSTE) && gmap &&
(flags & FAULT_FLAG_RETRY_NOWAIT)) {
/* FAULT_FLAG_RETRY_NOWAIT has been set,
- * mmap_sem has not been released */
+ * mmap_lock has not been released */
current->thread.gmap_pfault = 1;
fault = VM_FAULT_PFAULT;
goto out_up;
}
flags &= ~FAULT_FLAG_RETRY_NOWAIT;
flags |= FAULT_FLAG_TRIED;
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
goto retry;
}
}
@@ -533,7 +532,7 @@ retry:
}
fault = 0;
out_up:
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
out:
return fault;
}
@@ -825,22 +824,22 @@ void do_secure_storage_access(struct pt_regs *regs)
switch (get_fault_type(regs)) {
case USER_FAULT:
mm = current->mm;
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
vma = find_vma(mm, addr);
if (!vma) {
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
do_fault_error(regs, VM_READ | VM_WRITE, VM_FAULT_BADMAP);
break;
}
page = follow_page(vma, addr, FOLL_WRITE | FOLL_GET);
if (IS_ERR_OR_NULL(page)) {
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
break;
}
if (arch_make_page_accessible(page))
send_sig(SIGSEGV, current, 0);
put_page(page);
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
break;
case KERNEL_FAULT:
page = phys_to_page(addr);
diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index 4b6903fbba4a..190357ff86b3 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -17,8 +17,8 @@
#include <linux/swapops.h>
#include <linux/ksm.h>
#include <linux/mman.h>
+#include <linux/pgtable.h>
-#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/gmap.h>
#include <asm/tlb.h>
@@ -300,7 +300,7 @@ struct gmap *gmap_get_enabled(void)
EXPORT_SYMBOL_GPL(gmap_get_enabled);
/*
- * gmap_alloc_table is assumed to be called with mmap_sem held
+ * gmap_alloc_table is assumed to be called with mmap_lock held
*/
static int gmap_alloc_table(struct gmap *gmap, unsigned long *table,
unsigned long init, unsigned long gaddr)
@@ -405,10 +405,10 @@ int gmap_unmap_segment(struct gmap *gmap, unsigned long to, unsigned long len)
return -EINVAL;
flush = 0;
- down_write(&gmap->mm->mmap_sem);
+ mmap_write_lock(gmap->mm);
for (off = 0; off < len; off += PMD_SIZE)
flush |= __gmap_unmap_by_gaddr(gmap, to + off);
- up_write(&gmap->mm->mmap_sem);
+ mmap_write_unlock(gmap->mm);
if (flush)
gmap_flush_tlb(gmap);
return 0;
@@ -438,7 +438,7 @@ int gmap_map_segment(struct gmap *gmap, unsigned long from,
return -EINVAL;
flush = 0;
- down_write(&gmap->mm->mmap_sem);
+ mmap_write_lock(gmap->mm);
for (off = 0; off < len; off += PMD_SIZE) {
/* Remove old translation */
flush |= __gmap_unmap_by_gaddr(gmap, to + off);
@@ -448,7 +448,7 @@ int gmap_map_segment(struct gmap *gmap, unsigned long from,
(void *) from + off))
break;
}
- up_write(&gmap->mm->mmap_sem);
+ mmap_write_unlock(gmap->mm);
if (flush)
gmap_flush_tlb(gmap);
if (off >= len)
@@ -466,7 +466,7 @@ EXPORT_SYMBOL_GPL(gmap_map_segment);
* Returns user space address which corresponds to the guest address or
* -EFAULT if no such mapping exists.
* This function does not establish potentially missing page table entries.
- * The mmap_sem of the mm that belongs to the address space must be held
+ * The mmap_lock of the mm that belongs to the address space must be held
* when this function gets called.
*
* Note: Can also be called for shadow gmaps.
@@ -495,9 +495,9 @@ unsigned long gmap_translate(struct gmap *gmap, unsigned long gaddr)
{
unsigned long rc;
- down_read(&gmap->mm->mmap_sem);
+ mmap_read_lock(gmap->mm);
rc = __gmap_translate(gmap, gaddr);
- up_read(&gmap->mm->mmap_sem);
+ mmap_read_unlock(gmap->mm);
return rc;
}
EXPORT_SYMBOL_GPL(gmap_translate);
@@ -534,7 +534,7 @@ static void gmap_pmdp_xchg(struct gmap *gmap, pmd_t *old, pmd_t new,
*
* Returns 0 on success, -ENOMEM for out of memory conditions, and -EFAULT
* if the vm address is already mapped to a different guest segment.
- * The mmap_sem of the mm that belongs to the address space must be held
+ * The mmap_lock of the mm that belongs to the address space must be held
* when this function gets called.
*/
int __gmap_link(struct gmap *gmap, unsigned long gaddr, unsigned long vmaddr)
@@ -640,7 +640,7 @@ int gmap_fault(struct gmap *gmap, unsigned long gaddr,
int rc;
bool unlocked;
- down_read(&gmap->mm->mmap_sem);
+ mmap_read_lock(gmap->mm);
retry:
unlocked = false;
@@ -655,7 +655,7 @@ retry:
goto out_up;
}
/*
- * In the case that fixup_user_fault unlocked the mmap_sem during
+ * In the case that fixup_user_fault unlocked the mmap_lock during
* faultin redo __gmap_translate to not race with a map/unmap_segment.
*/
if (unlocked)
@@ -663,13 +663,13 @@ retry:
rc = __gmap_link(gmap, gaddr, vmaddr);
out_up:
- up_read(&gmap->mm->mmap_sem);
+ mmap_read_unlock(gmap->mm);
return rc;
}
EXPORT_SYMBOL_GPL(gmap_fault);
/*
- * this function is assumed to be called with mmap_sem held
+ * this function is assumed to be called with mmap_lock held
*/
void __gmap_zap(struct gmap *gmap, unsigned long gaddr)
{
@@ -696,7 +696,7 @@ void gmap_discard(struct gmap *gmap, unsigned long from, unsigned long to)
unsigned long gaddr, vmaddr, size;
struct vm_area_struct *vma;
- down_read(&gmap->mm->mmap_sem);
+ mmap_read_lock(gmap->mm);
for (gaddr = from; gaddr < to;
gaddr = (gaddr + PMD_SIZE) & PMD_MASK) {
/* Find the vm address for the guest address */
@@ -719,7 +719,7 @@ void gmap_discard(struct gmap *gmap, unsigned long from, unsigned long to)
size = min(to - gaddr, PMD_SIZE - (gaddr & ~PMD_MASK));
zap_page_range(vma, vmaddr, size);
}
- up_read(&gmap->mm->mmap_sem);
+ mmap_read_unlock(gmap->mm);
}
EXPORT_SYMBOL_GPL(gmap_discard);
@@ -882,7 +882,7 @@ static int gmap_pte_op_fixup(struct gmap *gmap, unsigned long gaddr,
if (fixup_user_fault(current, mm, vmaddr, fault_flags, &unlocked))
return -EFAULT;
if (unlocked)
- /* lost mmap_sem, caller has to retry __gmap_translate */
+ /* lost mmap_lock, caller has to retry __gmap_translate */
return 0;
/* Connect the page tables */
return __gmap_link(gmap, gaddr, vmaddr);
@@ -953,7 +953,7 @@ static inline void gmap_pmd_op_end(struct gmap *gmap, pmd_t *pmdp)
* -EAGAIN if a fixup is needed
* -EINVAL if unsupported notifier bits have been specified
*
- * Expected to be called with sg->mm->mmap_sem in read and
+ * Expected to be called with sg->mm->mmap_lock in read and
* guest_table_lock held.
*/
static int gmap_protect_pmd(struct gmap *gmap, unsigned long gaddr,
@@ -999,7 +999,7 @@ static int gmap_protect_pmd(struct gmap *gmap, unsigned long gaddr,
* Returns 0 if successfully protected, -ENOMEM if out of memory and
* -EAGAIN if a fixup is needed.
*
- * Expected to be called with sg->mm->mmap_sem in read
+ * Expected to be called with sg->mm->mmap_lock in read
*/
static int gmap_protect_pte(struct gmap *gmap, unsigned long gaddr,
pmd_t *pmdp, int prot, unsigned long bits)
@@ -1035,7 +1035,7 @@ static int gmap_protect_pte(struct gmap *gmap, unsigned long gaddr,
* Returns 0 if successfully protected, -ENOMEM if out of memory and
* -EFAULT if gaddr is invalid (or mapping for shadows is missing).
*
- * Called with sg->mm->mmap_sem in read.
+ * Called with sg->mm->mmap_lock in read.
*/
static int gmap_protect_range(struct gmap *gmap, unsigned long gaddr,
unsigned long len, int prot, unsigned long bits)
@@ -1106,9 +1106,9 @@ int gmap_mprotect_notify(struct gmap *gmap, unsigned long gaddr,
return -EINVAL;
if (!MACHINE_HAS_ESOP && prot == PROT_READ)
return -EINVAL;
- down_read(&gmap->mm->mmap_sem);
+ mmap_read_lock(gmap->mm);
rc = gmap_protect_range(gmap, gaddr, len, prot, GMAP_NOTIFY_MPROT);
- up_read(&gmap->mm->mmap_sem);
+ mmap_read_unlock(gmap->mm);
return rc;
}
EXPORT_SYMBOL_GPL(gmap_mprotect_notify);
@@ -1124,7 +1124,7 @@ EXPORT_SYMBOL_GPL(gmap_mprotect_notify);
* if reading using the virtual address failed. -EINVAL if called on a gmap
* shadow.
*
- * Called with gmap->mm->mmap_sem in read.
+ * Called with gmap->mm->mmap_lock in read.
*/
int gmap_read_table(struct gmap *gmap, unsigned long gaddr, unsigned long *val)
{
@@ -1696,11 +1696,11 @@ struct gmap *gmap_shadow(struct gmap *parent, unsigned long asce,
}
spin_unlock(&parent->shadow_lock);
/* protect after insertion, so it will get properly invalidated */
- down_read(&parent->mm->mmap_sem);
+ mmap_read_lock(parent->mm);
rc = gmap_protect_range(parent, asce & _ASCE_ORIGIN,
((asce & _ASCE_TABLE_LENGTH) + 1) * PAGE_SIZE,
PROT_READ, GMAP_NOTIFY_SHADOW);
- up_read(&parent->mm->mmap_sem);
+ mmap_read_unlock(parent->mm);
spin_lock(&parent->shadow_lock);
new->initialized = true;
if (rc) {
@@ -1729,7 +1729,7 @@ EXPORT_SYMBOL_GPL(gmap_shadow);
* shadow table structure is incomplete, -ENOMEM if out of memory and
* -EFAULT if an address in the parent gmap could not be resolved.
*
- * Called with sg->mm->mmap_sem in read.
+ * Called with sg->mm->mmap_lock in read.
*/
int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t,
int fake)
@@ -1813,7 +1813,7 @@ EXPORT_SYMBOL_GPL(gmap_shadow_r2t);
* shadow table structure is incomplete, -ENOMEM if out of memory and
* -EFAULT if an address in the parent gmap could not be resolved.
*
- * Called with sg->mm->mmap_sem in read.
+ * Called with sg->mm->mmap_lock in read.
*/
int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
int fake)
@@ -1897,7 +1897,7 @@ EXPORT_SYMBOL_GPL(gmap_shadow_r3t);
* shadow table structure is incomplete, -ENOMEM if out of memory and
* -EFAULT if an address in the parent gmap could not be resolved.
*
- * Called with sg->mm->mmap_sem in read.
+ * Called with sg->mm->mmap_lock in read.
*/
int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt,
int fake)
@@ -1981,7 +1981,7 @@ EXPORT_SYMBOL_GPL(gmap_shadow_sgt);
* Returns 0 if the shadow page table was found and -EAGAIN if the page
* table was not found.
*
- * Called with sg->mm->mmap_sem in read.
+ * Called with sg->mm->mmap_lock in read.
*/
int gmap_shadow_pgt_lookup(struct gmap *sg, unsigned long saddr,
unsigned long *pgt, int *dat_protection,
@@ -2021,7 +2021,7 @@ EXPORT_SYMBOL_GPL(gmap_shadow_pgt_lookup);
* shadow table structure is incomplete, -ENOMEM if out of memory,
* -EFAULT if an address in the parent gmap could not be resolved and
*
- * Called with gmap->mm->mmap_sem in read
+ * Called with gmap->mm->mmap_lock in read
*/
int gmap_shadow_pgt(struct gmap *sg, unsigned long saddr, unsigned long pgt,
int fake)
@@ -2100,7 +2100,7 @@ EXPORT_SYMBOL_GPL(gmap_shadow_pgt);
* shadow table structure is incomplete, -ENOMEM if out of memory and
* -EFAULT if an address in the parent gmap could not be resolved.
*
- * Called with sg->mm->mmap_sem in read.
+ * Called with sg->mm->mmap_lock in read.
*/
int gmap_shadow_page(struct gmap *sg, unsigned long saddr, pte_t pte)
{
@@ -2543,12 +2543,12 @@ int s390_enable_sie(void)
/* Fail if the page tables are 2K */
if (!mm_alloc_pgste(mm))
return -EINVAL;
- down_write(&mm->mmap_sem);
+ mmap_write_lock(mm);
mm->context.has_pgste = 1;
/* split thp mappings and disable thp for future mappings */
thp_split_mm(mm);
walk_page_range(mm, 0, TASK_SIZE, &zap_zero_walk_ops, NULL);
- up_write(&mm->mmap_sem);
+ mmap_write_unlock(mm);
return 0;
}
EXPORT_SYMBOL_GPL(s390_enable_sie);
@@ -2617,7 +2617,7 @@ int s390_enable_skey(void)
struct mm_struct *mm = current->mm;
int rc = 0;
- down_write(&mm->mmap_sem);
+ mmap_write_lock(mm);
if (mm_uses_skeys(mm))
goto out_up;
@@ -2630,7 +2630,7 @@ int s390_enable_skey(void)
walk_page_range(mm, 0, TASK_SIZE, &enable_skey_walk_ops, NULL);
out_up:
- up_write(&mm->mmap_sem);
+ mmap_write_unlock(mm);
return rc;
}
EXPORT_SYMBOL_GPL(s390_enable_skey);
@@ -2651,9 +2651,9 @@ static const struct mm_walk_ops reset_cmma_walk_ops = {
void s390_reset_cmma(struct mm_struct *mm)
{
- down_write(&mm->mmap_sem);
+ mmap_write_lock(mm);
walk_page_range(mm, 0, TASK_SIZE, &reset_cmma_walk_ops, NULL);
- up_write(&mm->mmap_sem);
+ mmap_write_unlock(mm);
}
EXPORT_SYMBOL_GPL(s390_reset_cmma);
@@ -2685,9 +2685,9 @@ void s390_reset_acc(struct mm_struct *mm)
*/
if (!mmget_not_zero(mm))
return;
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
walk_page_range(mm, 0, TASK_SIZE, &reset_acc_walk_ops, NULL);
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
mmput(mm);
}
EXPORT_SYMBOL_GPL(s390_reset_acc);
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index b11bcf4da531..6dc7c3b60ef6 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -33,7 +33,6 @@
#include <linux/dma-direct.h>
#include <asm/processor.h>
#include <linux/uaccess.h>
-#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/dma.h>
#include <asm/lowcore.h>
diff --git a/arch/s390/mm/kasan_init.c b/arch/s390/mm/kasan_init.c
index 06345616a646..99dd1c63a065 100644
--- a/arch/s390/mm/kasan_init.c
+++ b/arch/s390/mm/kasan_init.c
@@ -2,8 +2,8 @@
#include <linux/kasan.h>
#include <linux/sched/task.h>
#include <linux/memblock.h>
+#include <linux/pgtable.h>
#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
#include <asm/kasan.h>
#include <asm/mem_detect.h>
#include <asm/processor.h>
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c
index e22c06d5f206..c5c52ec2b46f 100644
--- a/arch/s390/mm/pageattr.c
+++ b/arch/s390/mm/pageattr.c
@@ -7,7 +7,6 @@
#include <linux/mm.h>
#include <asm/cacheflush.h>
#include <asm/facility.h>
-#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/page.h>
#include <asm/set_memory.h>
@@ -86,7 +85,7 @@ static int walk_pte_level(pmd_t *pmdp, unsigned long addr, unsigned long end,
{
pte_t *ptep, new;
- ptep = pte_offset(pmdp, addr);
+ ptep = pte_offset_kernel(pmdp, addr);
do {
new = *ptep;
if (pte_none(new))
@@ -338,19 +337,11 @@ void __kernel_map_pages(struct page *page, int numpages, int enable)
{
unsigned long address;
int nr, i, j;
- pgd_t *pgd;
- p4d_t *p4d;
- pud_t *pud;
- pmd_t *pmd;
pte_t *pte;
for (i = 0; i < numpages;) {
address = page_to_phys(page + i);
- pgd = pgd_offset_k(address);
- p4d = p4d_offset(pgd, address);
- pud = pud_offset(p4d, address);
- pmd = pmd_offset(pud, address);
- pte = pte_offset_kernel(pmd, address);
+ pte = virt_to_kpte(address);
nr = (unsigned long)pte >> ilog2(sizeof(long));
nr = PTRS_PER_PTE - (nr & (PTRS_PER_PTE - 1));
nr = min(numpages - i, nr);
diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
index fff169d64711..11d2c8395e2a 100644
--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -114,7 +114,7 @@ int crst_table_upgrade(struct mm_struct *mm, unsigned long end)
spin_lock_bh(&mm->page_table_lock);
/*
- * This routine gets called with mmap_sem lock held and there is
+ * This routine gets called with mmap_lock lock held and there is
* no reason to optimize for the case of otherwise. However, if
* that would ever change, the below check will let us know.
*/
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 9ebd01219812..2e0cc19f4cd7 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -19,7 +19,6 @@
#include <linux/ksm.h>
#include <linux/mman.h>
-#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/tlb.h>
#include <asm/tlbflush.h>
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index f810930aff42..8b6282cf7d13 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -13,7 +13,6 @@
#include <linux/slab.h>
#include <asm/cacheflush.h>
#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
#include <asm/setup.h>
#include <asm/tlbflush.h>
#include <asm/sections.h>
diff --git a/arch/s390/pci/pci_mmio.c b/arch/s390/pci/pci_mmio.c
index 020a2c514d96..38efa3e852c4 100644
--- a/arch/s390/pci/pci_mmio.c
+++ b/arch/s390/pci/pci_mmio.c
@@ -125,7 +125,7 @@ static long get_pfn(unsigned long user_addr, unsigned long access,
struct vm_area_struct *vma;
long ret;
- down_read(&current->mm->mmap_sem);
+ mmap_read_lock(current->mm);
ret = -EINVAL;
vma = find_vma(current->mm, user_addr);
if (!vma)
@@ -135,7 +135,7 @@ static long get_pfn(unsigned long user_addr, unsigned long access,
goto out;
ret = follow_pfn(vma, user_addr, pfn);
out:
- up_read(&current->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
return ret;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-01 08:13:42 +0000