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author | Kevin Wolf <kwolf@redhat.com> | 2012-03-01 18:36:21 +0100 |
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committer | Kevin Wolf <kwolf@redhat.com> | 2012-03-12 15:14:06 +0100 |
commit | 3cce16f44dc51b8695a144b7b0437548f886276e (patch) | |
tree | 311f73fc749a2c47b879e43036e93f728e4fb960 /block/qcow2-cluster.c | |
parent | 14fe292d86da90b79e2fb56a4986d27346339a00 (diff) | |
download | hqemu-3cce16f44dc51b8695a144b7b0437548f886276e.zip hqemu-3cce16f44dc51b8695a144b7b0437548f886276e.tar.gz |
qcow2: Add some tracing
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Diffstat (limited to 'block/qcow2-cluster.c')
-rw-r--r-- | block/qcow2-cluster.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index 07a2e93..a791bbe 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -27,6 +27,7 @@ #include "qemu-common.h" #include "block_int.h" #include "block/qcow2.h" +#include "trace.h" int qcow2_grow_l1_table(BlockDriverState *bs, int min_size, bool exact_size) { @@ -170,6 +171,8 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table) old_l2_offset = s->l1_table[l1_index]; + trace_qcow2_l2_allocate(bs, l1_index); + /* allocate a new l2 entry */ l2_offset = qcow2_alloc_clusters(bs, s->l2_size * sizeof(uint64_t)); @@ -184,6 +187,7 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table) /* allocate a new entry in the l2 cache */ + trace_qcow2_l2_allocate_get_empty(bs, l1_index); ret = qcow2_cache_get_empty(bs, s->l2_table_cache, l2_offset, (void**) table); if (ret < 0) { return ret; @@ -216,6 +220,7 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table) /* write the l2 table to the file */ BLKDBG_EVENT(bs->file, BLKDBG_L2_ALLOC_WRITE); + trace_qcow2_l2_allocate_write_l2(bs, l1_index); qcow2_cache_entry_mark_dirty(s->l2_table_cache, l2_table); ret = qcow2_cache_flush(bs, s->l2_table_cache); if (ret < 0) { @@ -223,6 +228,7 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table) } /* update the L1 entry */ + trace_qcow2_l2_allocate_write_l1(bs, l1_index); s->l1_table[l1_index] = l2_offset | QCOW_OFLAG_COPIED; ret = write_l1_entry(bs, l1_index); if (ret < 0) { @@ -230,9 +236,11 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table) } *table = l2_table; + trace_qcow2_l2_allocate_done(bs, l1_index, 0); return 0; fail: + trace_qcow2_l2_allocate_done(bs, l1_index, ret); qcow2_cache_put(bs, s->l2_table_cache, (void**) table); s->l1_table[l1_index] = old_l2_offset; return ret; @@ -584,6 +592,8 @@ int qcow2_alloc_cluster_link_l2(BlockDriverState *bs, QCowL2Meta *m) uint64_t cluster_offset = m->cluster_offset; bool cow = false; + trace_qcow2_cluster_link_l2(qemu_coroutine_self(), m->nb_clusters); + if (m->nb_clusters == 0) return 0; @@ -695,6 +705,9 @@ int qcow2_alloc_cluster_offset(BlockDriverState *bs, uint64_t offset, unsigned int nb_clusters, i = 0; QCowL2Meta *old_alloc; + trace_qcow2_alloc_clusters_offset(qemu_coroutine_self(), offset, + n_start, n_end); + ret = get_cluster_table(bs, offset, &l2_table, &l2_offset, &l2_index); if (ret < 0) { return ret; @@ -793,7 +806,7 @@ again: QLIST_INSERT_HEAD(&s->cluster_allocs, m, next_in_flight); /* allocate a new cluster */ - + trace_qcow2_cluster_alloc_phys(qemu_coroutine_self()); cluster_offset = qcow2_alloc_clusters(bs, nb_clusters * s->cluster_size); if (cluster_offset < 0) { ret = cluster_offset; |