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qcow2: fix the macro QCOW_MAX_L1_SIZE's use 

QCOW_MAX_L1_SIZE's unit is byte, and l1_size's unit
is l1 table entry size(8 bytes).

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Message-id: 54FFB0F1.5010307@cn.fujitsu.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Wen Congyang 2015-03-11 11:05:21 +08:00 committed by Stefan Hajnoczi
parent 2120465fbb
commit 87b86e7ef2
2 changed files with 2 additions and 2 deletions
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2
block/qcow2-snapshot.c
View File

@ -702,7 +702,7 @@ int qcow2_snapshot_load_tmp(BlockDriverState *bs,
sn = &s->snapshots[snapshot_index];
/* Allocate and read in the snapshot's L1 table */
if (sn->l1_size > QCOW_MAX_L1_SIZE) {
if (sn->l1_size > QCOW_MAX_L1_SIZE / sizeof(uint64_t)) {
error_setg(errp, "Snapshot L1 table too large");
return -EFBIG;
}

2
block/qcow2.c
View File

@ -742,7 +742,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
}
/* read the level 1 table */
if (header.l1_size > QCOW_MAX_L1_SIZE) {
if (header.l1_size > QCOW_MAX_L1_SIZE / sizeof(uint64_t)) {
error_setg(errp, "Active L1 table too large");
ret = -EFBIG;
goto fail;