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Diffstat (limited to 'arch/s390/mm/gmap.c')
-rw-r--r--arch/s390/mm/gmap.c78
1 files changed, 39 insertions, 39 deletions
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);
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-18 22:06:16 +0000