From: Muhammad Falak R Wani <falakreyaz@gmail.com>
To: Sudeep Dutt <sudeep.dutt@intel.com>
Cc: Ashutosh Dixit <ashutosh.dixit@intel.com>,
Nikhil Rao <nikhil.rao@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH] misc: mic: scif: use vma_pages().
Date: Sat, 21 May 2016 18:41:38 +0530 [thread overview]
Message-ID: <1463836303-16627-1-git-send-email-falakreyaz@gmail.com> (raw)
Replace explicit computation of vma page count by a call to
vma_pages()
Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
---
drivers/misc/mic/scif/scif_mmap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/misc/mic/scif/scif_mmap.c b/drivers/misc/mic/scif/scif_mmap.c
index 49cb8f7..9282116 100644
--- a/drivers/misc/mic/scif/scif_mmap.c
+++ b/drivers/misc/mic/scif/scif_mmap.c
@@ -552,7 +552,7 @@ static void scif_munmap(struct vm_area_struct *vma)
{
struct scif_endpt *ep;
struct vma_pvt *vmapvt = vma->vm_private_data;
- int nr_pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+ int nr_pages = vma_pages(vma);
s64 offset;
struct scif_rma_req req;
struct scif_window *window = NULL;
@@ -614,7 +614,7 @@ int scif_mmap(struct vm_area_struct *vma, scif_epd_t epd)
struct scif_window *window = NULL;
struct scif_endpt *ep = (struct scif_endpt *)epd;
s64 start_offset = vma->vm_pgoff << PAGE_SHIFT;
- int nr_pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+ int nr_pages = vma_pages(vma);
int err;
struct vma_pvt *vmapvt;
--
1.9.1
reply other threads:[~2016-05-21 13:11 UTC|newest]
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