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| author | Dong Xu Wang <wdongxu@linux.vnet.ibm.com> | 2012-03-15 20:13:32 +0800 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2012-04-05 14:54:40 +0200 |
| commit | 11c9c615c8e776e59ad0c6c6ed00ec7d38b5d865 (patch) | |
| tree | e4f848972603f5e98a1be2df0e6a580cbd17b63d /block/qed-check.c | |
| parent | f8111c241afa75544032dcfa23df0699c91f9866 (diff) | |
| download | qemu-11c9c615c8e776e59ad0c6c6ed00ec7d38b5d865.tar.gz | |
qed: image fragmentation statistics
Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/qed-check.c')
| -rw-r--r-- | block/qed-check.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/block/qed-check.c b/block/qed-check.c index e4a49ce72c..94327ff5b3 100644 --- a/block/qed-check.c +++ b/block/qed-check.c @@ -68,6 +68,7 @@ static unsigned int qed_check_l2_table(QEDCheck *check, QEDTable *table) { BDRVQEDState *s = check->s; unsigned int i, num_invalid = 0; + uint64_t last_offset = 0; for (i = 0; i < s->table_nelems; i++) { uint64_t offset = table->offsets[i]; @@ -76,6 +77,11 @@ static unsigned int qed_check_l2_table(QEDCheck *check, QEDTable *table) qed_offset_is_zero_cluster(offset)) { continue; } + check->result->bfi.allocated_clusters++; + if (last_offset && (last_offset + s->header.cluster_size != offset)) { + check->result->bfi.fragmented_clusters++; + } + last_offset = offset; /* Detect invalid cluster offset */ if (!qed_check_cluster_offset(s, offset)) { @@ -200,6 +206,9 @@ int qed_check(BDRVQEDState *s, BdrvCheckResult *result, bool fix) check.used_clusters = g_malloc0(((check.nclusters + 31) / 32) * sizeof(check.used_clusters[0])); + check.result->bfi.total_clusters = + (s->header.image_size + s->header.cluster_size - 1) / + s->header.cluster_size; ret = qed_check_l1_table(&check, s->l1_table); if (ret == 0) { /* Only check for leaks if entire image was scanned successfully */ |