From 280d373579558f73a8b70e329d9a6206933d3809 Mon Sep 17 00:00:00 2001 From: Kevin Wolf Date: Fri, 7 Dec 2012 18:08:47 +0100 Subject: qcow2: Enable dirty flag in qcow2_alloc_cluster_link_l2 This is closer to where the dirty flag is really needed, and it avoids having checks for special cases related to cluster allocation directly in the writev loop. Signed-off-by: Kevin Wolf --- block/qcow2-cluster.c | 5 ++++- block/qcow2.c | 7 +------ block/qcow2.h | 2 ++ 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index c2b59e7..7a038ac 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -668,11 +668,14 @@ int qcow2_alloc_cluster_link_l2(BlockDriverState *bs, QCowL2Meta *m) } /* Update L2 table. */ - + if (s->compatible_features & QCOW2_COMPAT_LAZY_REFCOUNTS) { + qcow2_mark_dirty(bs); + } if (qcow2_need_accurate_refcounts(s)) { qcow2_cache_set_dependency(bs, s->l2_table_cache, s->refcount_block_cache); } + ret = get_cluster_table(bs, m->offset, &l2_table, &l2_index); if (ret < 0) { goto err; diff --git a/block/qcow2.c b/block/qcow2.c index 08d92cc..dbcc0ff 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -222,7 +222,7 @@ static void report_unsupported_feature(BlockDriverState *bs, * updated successfully. Therefore it is not required to check the return * value of this function. */ -static int qcow2_mark_dirty(BlockDriverState *bs) +int qcow2_mark_dirty(BlockDriverState *bs) { BDRVQcowState *s = bs->opaque; uint64_t val; @@ -803,11 +803,6 @@ static coroutine_fn int qcow2_co_writev(BlockDriverState *bs, goto fail; } - if (l2meta->nb_clusters > 0 && - (s->compatible_features & QCOW2_COMPAT_LAZY_REFCOUNTS)) { - qcow2_mark_dirty(bs); - } - assert((cluster_offset & 511) == 0); qemu_iovec_reset(&hd_qiov); diff --git a/block/qcow2.h b/block/qcow2.h index 6dc79b5..a60fcb4 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -303,6 +303,8 @@ static inline bool qcow2_need_accurate_refcounts(BDRVQcowState *s) /* qcow2.c functions */ int qcow2_backing_read1(BlockDriverState *bs, QEMUIOVector *qiov, int64_t sector_num, int nb_sectors); + +int qcow2_mark_dirty(BlockDriverState *bs); int qcow2_update_header(BlockDriverState *bs); /* qcow2-refcount.c functions */ -- cgit v1.1