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| author | Kevin Wolf <kwolf@redhat.com> | 2010-02-23 16:40:54 +0100 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-02-23 13:23:29 -0600 |
| commit | 746c3cb5d55a702ba6285e97d2a13671f09285d8 (patch) | |
| tree | f681ca148674b3d2733404e62c04191de9def260 | |
| parent | 92dcb59fd4e1491afa0756ee9c2594869b487d23 (diff) | |
| download | qemu-746c3cb5d55a702ba6285e97d2a13671f09285d8.zip qemu-746c3cb5d55a702ba6285e97d2a13671f09285d8.tar.gz qemu-746c3cb5d55a702ba6285e97d2a13671f09285d8.tar.bz2 | |
qcow2: More checks for qemu-img check
Implement some more refcount block related checks
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| -rw-r--r-- | block/qcow2-refcount.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index f714ca2..917fc88 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -1065,9 +1065,21 @@ int qcow2_check_refcounts(BlockDriverState *bs) for(i = 0; i < s->refcount_table_size; i++) { int64_t offset; offset = s->refcount_table[i]; + + /* Refcount blocks are cluster aligned */ + if (offset & (s->cluster_size - 1)) { + fprintf(stderr, "ERROR refcount block %d is not " + "cluster aligned; refcount table entry corrupted\n", i); + errors++; + } + if (offset != 0) { errors += inc_refcounts(bs, refcount_table, nb_clusters, offset, s->cluster_size); + if (refcount_table[offset / s->cluster_size] != 1) { + fprintf(stderr, "ERROR refcount block %d refcount=%d\n", + i, refcount_table[offset / s->cluster_size]); + } } } |