@@ -97,7 +97,7 @@ static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
if (user_mode(regs))
flags |= FAULT_FLAG_USER;
retry:
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
vma = find_vma(mm, address);
if (!vma)
goto bad_area;
@@ -190,7 +190,7 @@ static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
}
}
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
return;
/*
@@ -198,7 +198,7 @@ static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
* Fix it, but check if it's kernel or user first..
*/
bad_area:
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
bad_area_nosemaphore:
/* User mode accesses just cause a SIGSEGV */
@@ -250,14 +250,14 @@ static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
* 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 (!user_mode(regs))
goto no_context;
pagefault_out_of_memory();
return;
do_sigbus:
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
/* Kernel mode? Handle exceptions or die */
if (!user_mode(regs))
@@ -165,22 +165,22 @@ static int FNAME(cmpxchg_gpte)(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
unsigned long pfn;
unsigned long paddr;
- down_read(¤t->mm->mmap_sem);
+ mmap_read_lock(current->mm);
vma = find_vma_intersection(current->mm, vaddr, vaddr + PAGE_SIZE);
if (!vma || !(vma->vm_flags & VM_PFNMAP)) {
- up_read(¤t->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
return -EFAULT;
}
pfn = ((vaddr - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
paddr = pfn << PAGE_SHIFT;
table = memremap(paddr, PAGE_SIZE, MEMREMAP_WB);
if (!table) {
- up_read(¤t->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
return -EFAULT;
}
ret = CMPXCHG(&table[index], orig_pte, new_pte);
memunmap(table);
- up_read(¤t->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
}
return (ret != orig_pte);
@@ -932,7 +932,7 @@ enum lru_status binder_alloc_free_page(struct list_head *item,
mm = alloc->vma_vm_mm;
if (!mmget_not_zero(mm))
goto err_mmget;
- if (!down_read_trylock(&mm->mmap_sem))
+ if (!mmap_read_trylock(mm))
goto err_down_read_mmap_sem_failed;
vma = binder_alloc_get_vma(alloc);
@@ -946,7 +946,7 @@ enum lru_status binder_alloc_free_page(struct list_head *item,
trace_binder_unmap_user_end(alloc, index);
}
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
mmput(mm);
trace_binder_unmap_kernel_start(alloc, index);
@@ -2302,7 +2302,7 @@ proc_map_files_readdir(struct file *file, struct dir_context *ctx)
if (!mm)
goto out_put_task;
- ret = down_read_killable(&mm->mmap_sem);
+ ret = mmap_read_lock_killable(mm);
if (ret) {
mmput(mm);
goto out_put_task;
@@ -2329,7 +2329,7 @@ proc_map_files_readdir(struct file *file, struct dir_context *ctx)
p = genradix_ptr_alloc(&fa, nr_files++, GFP_KERNEL);
if (!p) {
ret = -ENOMEM;
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
mmput(mm);
goto out_put_task;
}
@@ -2338,7 +2338,7 @@ proc_map_files_readdir(struct file *file, struct dir_context *ctx)
p->end = vma->vm_end;
p->mode = vma->vm_file->f_mode;
}
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
mmput(mm);
for (i = 0; i < nr_files; i++) {