Prevent discard requests from going beyond the disk size (to be squas…

…hed) Signed-off-by: Robert Breker <robert.breker@citrix.com>
xapi-project · Oct 7, 2015 · ef8c442 · ef8c442
1 parent 6d24d95
commit ef8c442
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/tapdisk-image.c b/drivers/tapdisk-image.c
@@ -143,6 +143,7 @@ tapdisk_image_check_request(td_image_t *image, td_vbd_request_t *vreq)
 
 	switch (vreq->op) {
 	case TD_OP_DISCARD:
+                secs = vreq->discard_nr_sectors;
 		/* fall through */
 	case TD_OP_WRITE:
 		if (rdonly) {