On Tue, Jan 24, 2012 at 3:03 PM, Kevin Wolf kw...@redhat.com wrote:
Am 18.01.2012 15:59, schrieb Stefan Hajnoczi:
@@ -303,6 +303,40 @@ void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c,
size_t count,
}
}
+/*
+ * Checks if a buffer is all zeroes
+ *
+ * Attention! The len must
Am 18.01.2012 15:59, schrieb Stefan Hajnoczi:
The qemu-img.c:is_not_zero() function checks if a buffer contains all
zeroes. This function will come in handy for zero-detection in the
block layer, so clean it up and move it to cutils.c.
Note that the function now returns true if the buffer
The qemu-img.c:is_not_zero() function checks if a buffer contains all
zeroes. This function will come in handy for zero-detection in the
block layer, so clean it up and move it to cutils.c.
Note that the function now returns true if the buffer is all zeroes.
This avoids the double-negatives
