[Libvir] PATCH: Fix stats overflow

[Daniel P. Berrange]

FYI, I have just applied the attached patch to fix a 32-bit overflow in
the stats code. We were doing a left shift of more than 32 bits on '1L'
which is only 32-bit wide on 32-bit platforms. I simply cast to a long long
instead.

Regards,
Dan.
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-------------- next part --------------
Index: stats_linux.c
===================================================================
RCS file: /data/cvs/libvirt/src/stats_linux.c,v
retrieving revision 1.3
diff -u -p -r1.3 stats_linux.c
--- stats_linux.c	15 Nov 2007 17:45:44 -0000	1.3
+++ stats_linux.c	17 Nov 2007 11:52:32 -0000
@@ -200,7 +200,7 @@ read_bd_stats (virConnectPtr conn, xenUn
      * an assumed sector size.
      */
     if (stats->rd_bytes > 0) {
-        if (stats->rd_bytes >= 1L<<(63-9)) {
+        if (stats->rd_bytes >= ((unsigned long long)1)<<(63-9)) {
             statsErrorFunc (conn, VIR_ERR_NO_SUPPORT, __FUNCTION__,
                             "stats->rd_bytes would overflow 64 bit counter",
                             domid);
@@ -209,7 +209,7 @@ read_bd_stats (virConnectPtr conn, xenUn
         stats->rd_bytes *= 512;
     }
     if (stats->wr_bytes > 0) {
-        if (stats->wr_bytes >= 1L<<(63-9)) {
+        if (stats->wr_bytes >= ((unsigned long long)1)<<(63-9)) {
             statsErrorFunc (conn, VIR_ERR_NO_SUPPORT, __FUNCTION__,
                             "stats->wr_bytes would overflow 64 bit counter",
                             domid);