linux-kernel - [PATCH 1/1] arch: alpha: kernel: Use vma

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Date:   Mon, 10 Oct 2016 05:47:36 +0530
From:   Shyam Saini <mayhs11saini@...il.com>
To:     rth@...ddle.net
Cc:     ink@...assic.park.msu.ru, mattst88@...il.com, bhelgaas@...gle.com,
        linux-kernel@...r.kernel.org, Shyam Saini <mayhs11saini@...il.com>
Subject: [PATCH 1/1] arch: alpha: kernel: Use vma_pages()

Replace explicit computation of vma page count by a call to
vma_pages()

Signed-off-by: Shyam Saini <mayhs11saini@...il.com>
---
 arch/alpha/kernel/pci-sysfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c
index 92c0d46..652449e 100644
--- a/arch/alpha/kernel/pci-sysfs.c
+++ b/arch/alpha/kernel/pci-sysfs.c
@@ -38,7 +38,7 @@ static int __pci_mmap_fits(struct pci_dev *pdev, int num,
 	unsigned long nr, start, size;
 	int shift = sparse ? 5 : 0;
 
-	nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	nr = vma_pages(vma);
 	start = vma->vm_pgoff;
 	size = ((pci_resource_len(pdev, num) - 1) >> (PAGE_SHIFT - shift)) + 1;
 
@@ -255,7 +255,7 @@ static int __legacy_mmap_fits(struct pci_controller *hose,
 {
 	unsigned long nr, start, size;
 
-	nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	nr = vma_pages(vma);
 	start = vma->vm_pgoff;
 	size = ((res_size - 1) >> PAGE_SHIFT) + 1;
 
-- 
2.7.4