Changeset 2ce943a in mainline

Timestamp:

2021-09-15T15:54:18Z (4 years ago)

Author:

Erik Kučák <riko98@…>

Children:

8a9a41e

Parents:

d5309df7

Message:

Fixed last bug with L2_index

File:

• uspace/srv/bd/qcow_bd/qcow_bd.c (modified) (1 diff)

uspace/srv/bd/qcow_bd/qcow_bd.c

@@ -324 +324 @@
 
         /* Compute l2 table index from the offset  */
-        uint64_t l2_table_index = (*offset >> header.cluster_bits) & (state.l2_size - 1);
-
+        uint64_t l2_table_shift = (1 << header.l2_bits) - 1;
+        uint64_t l2_table_index = (*offset >> header.cluster_bits) & l2_table_shift;
         /* Reading cluster reference from the l2 table */
         if (fseek(img, l2_table_reference + l2_table_index * sizeof(uint64_t), SEEK_SET) < 0) {