From: Wei Liu <wei.liu2@citrix.com>
Date: Sun, 6 Sep 2015 20:05:39 +0000 (+0100)
Subject: libxc: add assertion to avoid setting same bit more than once
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~2582
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=a7b39c8bd6cba3fe1c8012987b9e28bdbac7e92d;p=xen.git

libxc: add assertion to avoid setting same bit more than once

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
---

diff --git a/tools/libxc/xc_sr_restore.c b/tools/libxc/xc_sr_restore.c
index 924dd5534d..f48e7fcfe0 100644
--- a/tools/libxc/xc_sr_restore.c
+++ b/tools/libxc/xc_sr_restore.c
@@ -181,6 +181,7 @@ static int pfn_set_populated(struct xc_sr_context *ctx, xen_pfn_t pfn)
         ctx->restore.max_populated_pfn = new_max;
     }
 
+    assert(!test_bit(pfn, ctx->restore.populated_pfns));
     set_bit(pfn, ctx->restore.populated_pfns);
 
     return 0;