The patch titled
Subject: char: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT
has been added to the -mm tree. Its filename is
char-use-vma_pages-to-replace-vm_end-vm_start-page_shift.patch
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------------------------------------------------------
From: Libin <huawei.libin@xxxxxxxxxx>
Subject: char: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT
(*->vm_end - *->vm_start) >> PAGE_SHIFT operation is implemented
as a inline funcion vma_pages() in linux/mm.h, so using it.
Signed-off-by: Libin <huawei.libin@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/mspec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/char/mspec.c~char-use-vma_pages-to-replace-vm_end-vm_start-page_shift drivers/char/mspec.c
--- a/drivers/char/mspec.c~char-use-vma_pages-to-replace-vm_end-vm_start-page_shift
+++ a/drivers/char/mspec.c
@@ -168,7 +168,7 @@ mspec_close(struct vm_area_struct *vma)
if (!atomic_dec_and_test(&vdata->refcnt))
return;
- last_index = (vdata->vm_end - vdata->vm_start) >> PAGE_SHIFT;
+ last_index = vma_pages(vdata);
for (index = 0; index < last_index; index++) {
if (vdata->maddr[index] == 0)
continue;
_
Patches currently in -mm which might be from huawei.libin@xxxxxxxxxx are
origin.patch
mm-use-vma_pages-to-replace-vm_end-vm_start-page_shift.patch
ncpfs-use-vma_pages-to-replace-vm_end-vm_start-page_shift.patch
char-use-vma_pages-to-replace-vm_end-vm_start-page_shift.patch
uio-use-vma_pages-to-replace-vm_end-vm_start-page_shift.patch
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