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-rw-r--r--block/io.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/block/io.c b/block/io.c
index fbcd93304b..6293612e73 100644
--- a/block/io.c
+++ b/block/io.c
@@ -601,9 +601,11 @@ static void tracked_request_end(BdrvTrackedRequest *req)
static void tracked_request_begin(BdrvTrackedRequest *req,
BlockDriverState *bs,
int64_t offset,
- unsigned int bytes,
+ uint64_t bytes,
enum BdrvTrackedRequestType type)
{
+ assert(bytes <= INT64_MAX && offset <= INT64_MAX - bytes);
+
*req = (BdrvTrackedRequest){
.bs = bs,
.offset = offset,
@@ -625,7 +627,7 @@ static void tracked_request_begin(BdrvTrackedRequest *req,
static void mark_request_serialising(BdrvTrackedRequest *req, uint64_t align)
{
int64_t overlap_offset = req->offset & ~(align - 1);
- unsigned int overlap_bytes = ROUND_UP(req->offset + req->bytes, align)
+ uint64_t overlap_bytes = ROUND_UP(req->offset + req->bytes, align)
- overlap_offset;
if (!req->serialising) {
@@ -683,7 +685,7 @@ static int bdrv_get_cluster_size(BlockDriverState *bs)
}
static bool tracked_request_overlaps(BdrvTrackedRequest *req,
- int64_t offset, unsigned int bytes)
+ int64_t offset, uint64_t bytes)
{
/* aaaa bbbb */
if (offset >= req->overlap_offset + req->overlap_bytes) {