diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2023-09-11 11:46:12 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-09-20 17:46:01 +0200 |
| commit | 3804e3cf540af25a01d0d418a5a1d4f78c2574ff (patch) | |
| tree | 7a3fb1b6ec027501a297d2cacbe31e00ecaaa8c9 /block/mirror.c | |
| parent | afdaeb9ea06ea641ccc4226964b8e278af5e7685 (diff) | |
block: Mark bdrv_parent_perms_conflict() and callers GRAPH_RDLOCK
The function reads the parents list, so it needs to hold the graph lock.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20230911094620.45040-14-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/mirror.c')
| -rw-r--r-- | block/mirror.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/block/mirror.c b/block/mirror.c index aae4bebbb6..3cc0757a03 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -702,8 +702,12 @@ static int mirror_exit_common(Job *job) * mirror_top_bs from now on, so keep it drained. */ bdrv_drained_begin(mirror_top_bs); bs_opaque->stop = true; + + bdrv_graph_rdlock_main_loop(); bdrv_child_refresh_perms(mirror_top_bs, mirror_top_bs->backing, &error_abort); + bdrv_graph_rdunlock_main_loop(); + if (!abort && s->backing_mode == MIRROR_SOURCE_BACKING_CHAIN) { BlockDriverState *backing = s->is_none_mode ? src : s->base; BlockDriverState *unfiltered_target = bdrv_skip_filters(target_bs); @@ -1670,6 +1674,8 @@ static BlockJob *mirror_start_job( uint64_t target_perms, target_shared_perms; int ret; + GLOBAL_STATE_CODE(); + if (granularity == 0) { granularity = bdrv_get_default_bitmap_granularity(target); } @@ -1906,8 +1912,10 @@ fail: } bs_opaque->stop = true; + bdrv_graph_rdlock_main_loop(); bdrv_child_refresh_perms(mirror_top_bs, mirror_top_bs->backing, &error_abort); + bdrv_graph_rdunlock_main_loop(); bdrv_replace_node(mirror_top_bs, mirror_top_bs->backing->bs, &error_abort); bdrv_unref(mirror_top_bs); |