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bh=LDYsdedDpJQB8zjyL8KWX4vLDcV9e/Ns5PLVXS2+RtY=; b=HC7H+4Ev0nPxkquxMbB16KjsxOwH+GgTvra1AT/0riKKBqjjVPBVbGe/I4AJyXFntpYFEl L4LvURLsbPZg848GYQ1iK7KevD5gmgkDT45/l29tlioYj+JH7E0cqaLtSTq8uxKdaEw1Ng e61iKbj/HJDLGzp4LZr2Y04o0IYILLo= X-MC-Unique: 1g8Rm4QfOwWlWuRUG19BHQ-1 From: Emanuele Giuseppe Esposito To: qemu-block@nongnu.org Subject: [RFC PATCH v2 07/25] assertions for block_int global state API Date: Tue, 5 Oct 2021 10:31:57 -0400 Message-Id: <20211005143215.29500-8-eesposit@redhat.com> In-Reply-To: <20211005143215.29500-1-eesposit@redhat.com> References: <20211005143215.29500-1-eesposit@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eesposit@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" Signed-off-by: Emanuele Giuseppe Esposito Reviewed-by: Stefan Hajnoczi --- block.c | 17 +++++++++++++++++ block/backup.c | 1 + block/block-backend.c | 3 +++ block/commit.c | 2 ++ block/dirty-bitmap.c | 2 ++ block/io.c | 6 ++++++ block/mirror.c | 4 ++++ block/monitor/bitmap-qmp-cmds.c | 6 ++++++ block/stream.c | 2 ++ blockdev.c | 7 +++++++ 10 files changed, 50 insertions(+) diff --git a/block.c b/block.c index 6121af7040..b912f517a4 100644 --- a/block.c +++ b/block.c @@ -648,6 +648,8 @@ int coroutine_fn bdrv_co_create_opts_simple(BlockDriver= *drv, Error *local_err =3D NULL; int ret; =20 + g_assert(qemu_in_main_thread()); + size =3D qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0); buf =3D qemu_opt_get_del(opts, BLOCK_OPT_PREALLOC); prealloc =3D qapi_enum_parse(&PreallocMode_lookup, buf, @@ -2405,6 +2407,8 @@ void bdrv_get_cumulative_perm(BlockDriverState *bs, u= int64_t *perm, uint64_t cumulative_perms =3D 0; uint64_t cumulative_shared_perms =3D BLK_PERM_ALL; =20 + g_assert(qemu_in_main_thread()); + QLIST_FOREACH(c, &bs->parents, next_parent) { cumulative_perms |=3D c->perm; cumulative_shared_perms &=3D c->shared_perm; @@ -2463,6 +2467,8 @@ int bdrv_child_try_set_perm(BdrvChild *c, uint64_t pe= rm, uint64_t shared, Transaction *tran =3D tran_new(); int ret; =20 + g_assert(qemu_in_main_thread()); + bdrv_child_set_perm(c, perm, shared, tran); =20 ret =3D bdrv_refresh_perms(c->bs, &local_err); @@ -2493,6 +2499,8 @@ int bdrv_child_refresh_perms(BlockDriverState *bs, Bd= rvChild *c, Error **errp) uint64_t parent_perms, parent_shared; uint64_t perms, shared; =20 + g_assert(qemu_in_main_thread()); + bdrv_get_cumulative_perm(bs, &parent_perms, &parent_shared); bdrv_child_perm(bs, c->bs, c, c->role, NULL, parent_perms, parent_shared, &perms, &shared); @@ -2635,6 +2643,7 @@ void bdrv_default_perms(BlockDriverState *bs, BdrvChi= ld *c, uint64_t perm, uint64_t shared, uint64_t *nperm, uint64_t *nshared) { + g_assert(qemu_in_main_thread()); if (role & BDRV_CHILD_FILTERED) { assert(!(role & (BDRV_CHILD_DATA | BDRV_CHILD_METADATA | BDRV_CHILD_COW))); @@ -2961,6 +2970,8 @@ BdrvChild *bdrv_root_attach_child(BlockDriverState *c= hild_bs, BdrvChild *child =3D NULL; Transaction *tran =3D tran_new(); =20 + g_assert(qemu_in_main_thread()); + ret =3D bdrv_attach_child_common(child_bs, child_name, child_class, child_role, perm, shared_perm, opaque, &child, tran, errp); @@ -5939,6 +5950,8 @@ const char *bdrv_get_parent_name(const BlockDriverSta= te *bs) BdrvChild *c; const char *name; =20 + g_assert(qemu_in_main_thread()); + /* If multiple parents have a name, just pick the first one. */ QLIST_FOREACH(c, &bs->parents, next_parent) { if (c->klass->get_name) { @@ -7206,6 +7219,8 @@ bool bdrv_recurse_can_replace(BlockDriverState *bs, { BlockDriverState *filtered; =20 + g_assert(qemu_in_main_thread()); + if (!bs || !bs->drv) { return false; } @@ -7377,6 +7392,7 @@ static bool append_strong_runtime_options(QDict *d, B= lockDriverState *bs) * would result in exactly bs->backing. */ bool bdrv_backing_overridden(BlockDriverState *bs) { + g_assert(qemu_in_main_thread()); if (bs->backing) { return strcmp(bs->auto_backing_file, bs->backing->bs->filename); @@ -7765,6 +7781,7 @@ static BlockDriverState *bdrv_do_skip_filters(BlockDr= iverState *bs, */ BlockDriverState *bdrv_skip_implicit_filters(BlockDriverState *bs) { + g_assert(qemu_in_main_thread()); return bdrv_do_skip_filters(bs, true); } =20 diff --git a/block/backup.c b/block/backup.c index bd3614ce70..8677dd44dc 100644 --- a/block/backup.c +++ b/block/backup.c @@ -413,6 +413,7 @@ BlockJob *backup_job_create(const char *job_id, BlockDr= iverState *bs, =20 assert(bs); assert(target); + g_assert(qemu_in_main_thread()); =20 /* QMP interface protects us from these cases */ assert(sync_mode !=3D MIRROR_SYNC_MODE_INCREMENTAL); diff --git a/block/block-backend.c b/block/block-backend.c index 9cd3b27b53..9f09245069 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -1078,6 +1078,7 @@ static void blk_root_change_media(BdrvChild *child, b= ool load) */ bool blk_dev_has_removable_media(BlockBackend *blk) { + g_assert(qemu_in_main_thread()); return !blk->dev || (blk->dev_ops && blk->dev_ops->change_media_cb); } =20 @@ -1095,6 +1096,7 @@ bool blk_dev_has_tray(BlockBackend *blk) */ void blk_dev_eject_request(BlockBackend *blk, bool force) { + g_assert(qemu_in_main_thread()); if (blk->dev_ops && blk->dev_ops->eject_request_cb) { blk->dev_ops->eject_request_cb(blk->dev_opaque, force); } @@ -1117,6 +1119,7 @@ bool blk_dev_is_tray_open(BlockBackend *blk) */ bool blk_dev_is_medium_locked(BlockBackend *blk) { + g_assert(qemu_in_main_thread()); if (blk->dev_ops && blk->dev_ops->is_medium_locked) { return blk->dev_ops->is_medium_locked(blk->dev_opaque); } diff --git a/block/commit.c b/block/commit.c index 87d7a764d8..a030e0afbf 100644 --- a/block/commit.c +++ b/block/commit.c @@ -253,6 +253,8 @@ void commit_start(const char *job_id, BlockDriverState = *bs, uint64_t base_perms, iter_shared_perms; int ret; =20 + g_assert(qemu_in_main_thread()); + assert(top !=3D bs); if (bdrv_skip_filters(top) =3D=3D bdrv_skip_filters(base)) { error_setg(errp, "Invalid files for merge: top and base are the sa= me"); diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c index 0ef46163e3..a9e87d92d9 100644 --- a/block/dirty-bitmap.c +++ b/block/dirty-bitmap.c @@ -657,6 +657,7 @@ void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap, void bdrv_clear_dirty_bitmap(BdrvDirtyBitmap *bitmap, HBitmap **out) { assert(!bdrv_dirty_bitmap_readonly(bitmap)); + g_assert(qemu_in_main_thread()); bdrv_dirty_bitmaps_lock(bitmap->bs); if (!out) { hbitmap_reset_all(bitmap->bitmap); @@ -673,6 +674,7 @@ void bdrv_restore_dirty_bitmap(BdrvDirtyBitmap *bitmap,= HBitmap *backup) { HBitmap *tmp =3D bitmap->bitmap; assert(!bdrv_dirty_bitmap_readonly(bitmap)); + g_assert(qemu_in_main_thread()); bitmap->bitmap =3D backup; hbitmap_free(tmp); } diff --git a/block/io.c b/block/io.c index 85242c0302..21dcc5d962 100644 --- a/block/io.c +++ b/block/io.c @@ -559,6 +559,7 @@ void bdrv_subtree_drained_end(BlockDriverState *bs) void bdrv_apply_subtree_drain(BdrvChild *child, BlockDriverState *new_pare= nt) { int i; + g_assert(qemu_in_main_thread()); =20 for (i =3D 0; i < new_parent->recursive_quiesce_counter; i++) { bdrv_do_drained_begin(child->bs, true, child, false, true); @@ -570,6 +571,8 @@ void bdrv_unapply_subtree_drain(BdrvChild *child, Block= DriverState *old_parent) int drained_end_counter =3D 0; int i; =20 + g_assert(qemu_in_main_thread()); + for (i =3D 0; i < old_parent->recursive_quiesce_counter; i++) { bdrv_do_drained_end(child->bs, true, child, false, &drained_end_counter); @@ -689,6 +692,7 @@ void bdrv_drain_all_end_quiesce(BlockDriverState *bs) { int drained_end_counter =3D 0; =20 + g_assert(qemu_in_main_thread()); g_assert(bs->quiesce_counter > 0); g_assert(!bs->refcnt); =20 @@ -3334,6 +3338,7 @@ int coroutine_fn bdrv_co_copy_range_from(BdrvChild *s= rc, int64_t src_offset, { trace_bdrv_co_copy_range_from(src, src_offset, dst, dst_offset, bytes, read_flags, write_flags); + g_assert(qemu_in_main_thread()); return bdrv_co_copy_range_internal(src, src_offset, dst, dst_offset, bytes, read_flags, write_flags, tru= e); } @@ -3350,6 +3355,7 @@ int coroutine_fn bdrv_co_copy_range_to(BdrvChild *src= , int64_t src_offset, { trace_bdrv_co_copy_range_to(src, src_offset, dst, dst_offset, bytes, read_flags, write_flags); + g_assert(qemu_in_main_thread()); return bdrv_co_copy_range_internal(src, src_offset, dst, dst_offset, bytes, read_flags, write_flags, fal= se); } diff --git a/block/mirror.c b/block/mirror.c index 98fc66eabf..589dd35b16 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -1865,6 +1865,8 @@ void mirror_start(const char *job_id, BlockDriverStat= e *bs, bool is_none_mode; BlockDriverState *base; =20 + g_assert(qemu_in_main_thread()); + if ((mode =3D=3D MIRROR_SYNC_MODE_INCREMENTAL) || (mode =3D=3D MIRROR_SYNC_MODE_BITMAP)) { error_setg(errp, "Sync mode '%s' not supported", @@ -1890,6 +1892,8 @@ BlockJob *commit_active_start(const char *job_id, Blo= ckDriverState *bs, bool base_read_only; BlockJob *job; =20 + g_assert(qemu_in_main_thread()); + base_read_only =3D bdrv_is_read_only(base); =20 if (base_read_only) { diff --git a/block/monitor/bitmap-qmp-cmds.c b/block/monitor/bitmap-qmp-cmd= s.c index 9f11deec64..787ca17834 100644 --- a/block/monitor/bitmap-qmp-cmds.c +++ b/block/monitor/bitmap-qmp-cmds.c @@ -56,6 +56,8 @@ BdrvDirtyBitmap *block_dirty_bitmap_lookup(const char *no= de, BlockDriverState *bs; BdrvDirtyBitmap *bitmap; =20 + g_assert(qemu_in_main_thread()); + if (!node) { error_setg(errp, "Node cannot be NULL"); return NULL; @@ -155,6 +157,8 @@ BdrvDirtyBitmap *block_dirty_bitmap_remove(const char *= node, const char *name, BdrvDirtyBitmap *bitmap; AioContext *aio_context; =20 + g_assert(qemu_in_main_thread()); + bitmap =3D block_dirty_bitmap_lookup(node, name, &bs, errp); if (!bitmap || !bs) { return NULL; @@ -261,6 +265,8 @@ BdrvDirtyBitmap *block_dirty_bitmap_merge(const char *n= ode, const char *target, BlockDirtyBitmapMergeSourceList *lst; Error *local_err =3D NULL; =20 + g_assert(qemu_in_main_thread()); + dst =3D block_dirty_bitmap_lookup(node, target, &bs, errp); if (!dst) { return NULL; diff --git a/block/stream.c b/block/stream.c index 97bee482dc..a079c3c10d 100644 --- a/block/stream.c +++ b/block/stream.c @@ -216,6 +216,8 @@ void stream_start(const char *job_id, BlockDriverState = *bs, QDict *opts; int ret; =20 + g_assert(qemu_in_main_thread()); + assert(!(base && bottom)); assert(!(backing_file_str && bottom)); =20 diff --git a/blockdev.c b/blockdev.c index 75407cbf67..5608b78f8f 100644 --- a/blockdev.c +++ b/blockdev.c @@ -70,6 +70,7 @@ QTAILQ_HEAD(, BlockDriverState) monitor_bdrv_states =3D =20 void bdrv_set_monitor_owned(BlockDriverState *bs) { + g_assert(qemu_in_main_thread()); QTAILQ_INSERT_TAIL(&monitor_bdrv_states, bs, monitor_list); } =20 @@ -662,6 +663,7 @@ BlockDriverState *bds_tree_init(QDict *bs_opts, Error *= *errp) { int bdrv_flags =3D 0; =20 + g_assert(qemu_in_main_thread()); /* bdrv_open() defaults to the values in bdrv_flags (for compatibility * with other callers) rather than what we want as the real defaults. * Apply the defaults here instead. */ @@ -680,6 +682,7 @@ void blockdev_close_all_bdrv_states(void) { BlockDriverState *bs, *next_bs; =20 + g_assert(qemu_in_main_thread()); QTAILQ_FOREACH_SAFE(bs, &monitor_bdrv_states, monitor_list, next_bs) { AioContext *ctx =3D bdrv_get_aio_context(bs); =20 @@ -2333,6 +2336,8 @@ void qmp_transaction(TransactionActionList *dev_list, BlkActionState *state, *next; Error *local_err =3D NULL; =20 + g_assert(qemu_in_main_thread()); + QTAILQ_HEAD(, BlkActionState) snap_bdrv_states; QTAILQ_INIT(&snap_bdrv_states); =20 @@ -3626,6 +3631,8 @@ void qmp_blockdev_del(const char *node_name, Error **= errp) AioContext *aio_context; BlockDriverState *bs; =20 + g_assert(qemu_in_main_thread()); + bs =3D bdrv_find_node(node_name); if (!bs) { error_setg(errp, "Failed to find node with node-name=3D'%s'", node= _name); --=20 2.27.0