From f93ae36462091eca8c8d70ced64b97056a8ecbd6 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Date: Thu, 6 Jul 2017 15:38:35 -0700
Subject: [PATCH] fs/userfaultfd.c: drop dead code
Calculation of start end end in __wake_userfault function are not used
and can be removed.
Link: http://lkml.kernel.org/r/1494930917-3134-1-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
fs/userfaultfd.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 6148ccd6cccf2..3d0dd082337a6 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -1114,11 +1114,6 @@ static ssize_t userfaultfd_read(struct file *file, char __user *buf,
static void __wake_userfault(struct userfaultfd_ctx *ctx,
struct userfaultfd_wake_range *range)
{
- unsigned long start, end;
-
- start = range->start;
- end = range->start + range->len;
-
spin_lock(&ctx->fault_pending_wqh.lock);
/* wake all in the range and autoremove */
if (waitqueue_active(&ctx->fault_pending_wqh))
--
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