Changeset 38224615 in mainline

Timestamp:

2011-07-16T22:42:43Z (13 years ago)

Author:

Maurizio Lombardi <m.lombardi85@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

44799a0

Parents:

367d67fe

Message:

Fix bug in alloc_zone() and free_zone functions which may cause data corruption.

File:

• uspace/srv/fs/minixfs/mfs_balloc.c (modified) (2 diffs)

uspace/srv/fs/minixfs/mfs_balloc.c

@@ -63 +63 @@
         int r = mfs_alloc_bit(inst, zone, BMAP_ZONE);
 
-        *zone += inst->sbi->firstdatazone;
+        *zone += inst->sbi->firstdatazone - 1;
         return r;
 }
@@ -70 +70 @@
 mfs_free_zone(struct mfs_instance *inst, uint32_t zone)
 {
-        zone -= inst->sbi->firstdatazone;
+        zone -= inst->sbi->firstdatazone - 1;
 
         return mfs_free_bit(inst, zone, BMAP_ZONE);