From patchwork Wed Jan 16 15:48:29 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [RFC, V5, 50/62] qapi: Return virtual block device deduplication metrics in QMP Date: Wed, 16 Jan 2013 05:48:29 -0000 From: =?utf-8?q?Beno=C3=AEt_Canet?= X-Patchwork-Id: 212831 Message-Id: <1358351321-4891-51-git-send-email-benoit@irqsave.net> To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, pbonzini@redhat.com, =?UTF-8?q?Beno=C3=AEt=20Canet?= , stefanha@redhat.com --- block.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/block.c b/block.c index 4e28c55..a245653 100644 --- a/block.c +++ b/block.c @@ -2921,6 +2921,40 @@ BlockInfoList *qmp_query_block(Error **errp) return head; } +static void bdrv_get_dedup_metrics(const BlockDriverState *bs, + BlockDeviceStats *stats) +{ + BlockDriverInfo bdi; + + if (bdrv_get_info((BlockDriverState *) bs, &bdi) < 0) { + return; + } + + if (!bdi.has_dedup) { + return; + } + + stats->has_deduplication = true; + stats->deduplication = g_malloc0(sizeof(*stats->deduplication)); + stats->deduplication->deduplicated_clusters = + bdi.dedup_metrics.deduplicated_clusters; + stats->deduplication->non_deduplicated_clusters = + bdi.dedup_metrics.non_deduplicated_clusters; + stats->deduplication->missing_data_reads = + bdi.dedup_metrics.missing_data_reads; + stats->deduplication->ram_hash_creations = + bdi.dedup_metrics.ram_hash_creations; + stats->deduplication->ram_hash_deletions = + bdi.dedup_metrics.ram_hash_deletions; + stats->deduplication->ram_usage = + bdi.dedup_metrics.ram_usage; + stats->deduplication->deleted_clusters = + bdi.dedup_metrics.deleted_clusters; + stats->deduplication->refcount_overflows = + bdi.dedup_metrics.refcount_overflows; + stats->deduplication->running = bdi.dedup_running; +} + BlockStats *bdrv_query_stats(const BlockDriverState *bs) { BlockStats *s; @@ -2943,6 +2977,8 @@ BlockStats *bdrv_query_stats(const BlockDriverState *bs) s->stats->rd_total_time_ns = bs->total_time_ns[BDRV_ACCT_READ]; s->stats->flush_total_time_ns = bs->total_time_ns[BDRV_ACCT_FLUSH]; + bdrv_get_dedup_metrics(bs, s->stats); + if (bs->file) { s->has_parent = true; s->parent = bdrv_query_stats(bs->file);