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| author | Kevin Wolf <kwolf@redhat.com> | 2023-10-27 17:53:33 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-11-08 17:56:18 +0100 |
| commit | 1f051dcbdf2e4b6f518db731c84e304b2b9d15ce (patch) | |
| tree | c96479cc14a8cc90443bc4f7fe46afbfa76a4006 /block/blkreplay.c | |
| parent | a4b740db5ee3db0d5b76a6ea9895875763453187 (diff) | |
| download | qemu-1f051dcbdf2e4b6f518db731c84e304b2b9d15ce.zip qemu-1f051dcbdf2e4b6f518db731c84e304b2b9d15ce.tar.gz qemu-1f051dcbdf2e4b6f518db731c84e304b2b9d15ce.tar.bz2 | |
block: Protect bs->file with graph_lock
Almost all functions that access bs->file already take the graph
lock now. Add locking to the remaining users and finally annotate the
struct field itself as protected by the graph lock.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20231027155333.420094-25-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/blkreplay.c')
| -rw-r--r-- | block/blkreplay.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/block/blkreplay.c b/block/blkreplay.c index 04f53ee..792d980 100644 --- a/block/blkreplay.c +++ b/block/blkreplay.c @@ -130,7 +130,13 @@ static int coroutine_fn GRAPH_RDLOCK blkreplay_co_flush(BlockDriverState *bs) static int blkreplay_snapshot_goto(BlockDriverState *bs, const char *snapshot_id) { - return bdrv_snapshot_goto(bs->file->bs, snapshot_id, NULL); + BlockDriverState *file_bs; + + bdrv_graph_rdlock_main_loop(); + file_bs = bs->file->bs; + bdrv_graph_rdunlock_main_loop(); + + return bdrv_snapshot_goto(file_bs, snapshot_id, NULL); } static BlockDriver bdrv_blkreplay = { |