The patch titled Subject: uio: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT has been added to the -mm tree. Its filename is uio-use-vma_pages-to-replace-vm_end-vm_start-page_shift.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Libin <huawei.libin@xxxxxxxxxx> Subject: uio: 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/uio/uio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN drivers/uio/uio.c~uio-use-vma_pages-to-replace-vm_end-vm_start-page_shift drivers/uio/uio.c --- a/drivers/uio/uio.c~uio-use-vma_pages-to-replace-vm_end-vm_start-page_shift +++ a/drivers/uio/uio.c @@ -677,7 +677,7 @@ static int uio_mmap(struct file *filep, if (mi < 0) return -EINVAL; - requested_pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + requested_pages = vma_pages(vma); actual_pages = ((idev->info->mem[mi].addr & ~PAGE_MASK) + idev->info->mem[mi].size + PAGE_SIZE -1) >> PAGE_SHIFT; if (requested_pages > actual_pages) _ 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 -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html