diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2023-02-03 16:21:50 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-02-23 19:49:17 +0100 |
| commit | b9b10c35e5c8bdb800601b142c44a4bd2da5a6d2 (patch) | |
| tree | d0f692507ec8ea696ecea07c1aae59a839568795 /block/blkreplay.c | |
| parent | 7b1fb72e2c1b9fbca17c13b753aee25f445cad24 (diff) | |
block: Mark public read/write functions GRAPH_RDLOCK
This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_co_pread*/pwrite*() need to hold a reader lock for the graph.
For some places, we know that they will hold the lock, but we don't have
the GRAPH_RDLOCK annotations yet. In this case, add assume_graph_lock()
with a FIXME comment. These places will be removed once everything is
properly annotated.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230203152202.49054-12-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/blkreplay.c')
| -rw-r--r-- | block/blkreplay.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/block/blkreplay.c b/block/blkreplay.c index 2703a0c8c6..bc96bbd41e 100644 --- a/block/blkreplay.c +++ b/block/blkreplay.c @@ -69,8 +69,9 @@ static void block_request_create(uint64_t reqid, BlockDriverState *bs, replay_block_event(req->bh, reqid); } -static int coroutine_fn blkreplay_co_preadv(BlockDriverState *bs, - int64_t offset, int64_t bytes, QEMUIOVector *qiov, BdrvRequestFlags flags) +static int coroutine_fn GRAPH_RDLOCK +blkreplay_co_preadv(BlockDriverState *bs, int64_t offset, int64_t bytes, + QEMUIOVector *qiov, BdrvRequestFlags flags) { uint64_t reqid = blkreplay_next_id(); int ret = bdrv_co_preadv(bs->file, offset, bytes, qiov, flags); @@ -80,8 +81,9 @@ static int coroutine_fn blkreplay_co_preadv(BlockDriverState *bs, return ret; } -static int coroutine_fn blkreplay_co_pwritev(BlockDriverState *bs, - int64_t offset, int64_t bytes, QEMUIOVector *qiov, BdrvRequestFlags flags) +static int coroutine_fn GRAPH_RDLOCK +blkreplay_co_pwritev(BlockDriverState *bs, int64_t offset, int64_t bytes, + QEMUIOVector *qiov, BdrvRequestFlags flags) { uint64_t reqid = blkreplay_next_id(); int ret = bdrv_co_pwritev(bs->file, offset, bytes, qiov, flags); |