@@ -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);
+ mm_read_lock(mm);
vma = find_vma(mm, address);
if (!vma)
goto bad_area;
@@ -191,7 +191,7 @@ static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
}
}
- up_read(&mm->mmap_sem);
+ mm_read_unlock(mm);
return;
/*
@@ -199,7 +199,7 @@ 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);
+ mm_read_unlock(mm);
bad_area_nosemaphore:
/* User mode accesses just cause a SIGSEGV */
@@ -251,14 +251,14 @@ 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);
+ mm_read_unlock(mm);
if (!user_mode(regs))
goto no_context;
pagefault_out_of_memory();
return;
do_sigbus:
- up_read(&mm->mmap_sem);
+ mm_read_unlock(mm);
/* Kernel mode? Handle exceptions or die */
if (!user_mode(regs))
@@ -150,22 +150,22 @@ 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);
+ mm_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);
+ mm_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);
+ mm_read_unlock(current->mm);
return -EFAULT;
}
ret = CMPXCHG(&table[index], orig_pte, new_pte);
memunmap(table);
- up_read(¤t->mm->mmap_sem);
+ mm_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 (!mm_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);
+ mm_read_unlock(mm);
mmput(mm);
trace_binder_unmap_kernel_start(alloc, index);
@@ -2189,7 +2189,7 @@ 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 = mm_read_lock_killable(mm);
if (ret) {
mmput(mm);
goto out_put_task;
@@ -2216,7 +2216,7 @@ 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);
+ mm_read_unlock(mm);
mmput(mm);
goto out_put_task;
}
@@ -2225,7 +2225,7 @@ 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);
+ mm_read_unlock(mm);
mmput(mm);
for (i = 0; i < nr_files; i++) {
Convert the last few remaining mmap_sem rwsem calls to use the new MM locking API. These were missed by coccinelle for some reason (I think coccinelle does not support some of the preprocessor constructs in these files ?) Signed-off-by: Michel Lespinasse <walken@google.com> --- arch/mips/mm/fault.c | 10 +++++----- arch/x86/kvm/mmu/paging_tmpl.h | 8 ++++---- drivers/android/binder_alloc.c | 4 ++-- fs/proc/base.c | 6 +++--- 4 files changed, 14 insertions(+), 14 deletions(-)