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fs/userfaultfd.c: drop dead code

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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>
This commit is contained in:
Mike Rapoport 2017-07-06 15:38:35 -07:00 • committed by Linus Torvalds
parent 57ecbd3831
commit f93ae36462
1 changed files with 0 additions and 5 deletions
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5
fs/userfaultfd.c
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@ -1114,11 +1114,6 @@ static ssize_t userfaultfd_read(struct file *file, char __user *buf,
static void __wake_userfault(struct userfaultfd_ctx *ctx, static void __wake_userfault(struct userfaultfd_ctx *ctx,
struct userfaultfd_wake_range *range) struct userfaultfd_wake_range *range)
{ {
unsigned long start, end;
start = range->start;
end = range->start + range->len;
spin_lock(&ctx->fault_pending_wqh.lock); spin_lock(&ctx->fault_pending_wqh.lock);
/* wake all in the range and autoremove */ /* wake all in the range and autoremove */
if (waitqueue_active(&ctx->fault_pending_wqh)) if (waitqueue_active(&ctx->fault_pending_wqh))