diff options
| author | Emanuele Giuseppe Esposito <eesposit@redhat.com> | 2023-01-13 21:42:08 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-02-01 16:52:32 +0100 |
| commit | 3d47eb0a2a42b13734d1beb75c4310b3881f906f (patch) | |
| tree | dccfa2e6cac772fe8c38cecca7d69c077c89d90d /block/qcow.c | |
| parent | 82618d7bc341cb93b9ce9c206d7ec84cebe83d00 (diff) | |
block: Convert bdrv_get_info() to co_wrapper_mixed
bdrv_get_info() is categorized as an I/O function, and it currently
doesn't run in a coroutine. We should let it take a graph rdlock since
it traverses the block nodes graph, which however is only possible in a
coroutine.
Therefore turn it into a co_wrapper to move the actual function into a
coroutine where the lock can be taken.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-11-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/qcow.c')
| -rw-r--r-- | block/qcow.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/block/qcow.c b/block/qcow.c index 5d99f00411..5f0801f545 100644 --- a/block/qcow.c +++ b/block/qcow.c @@ -1129,7 +1129,8 @@ fail: return ret; } -static int qcow_get_info(BlockDriverState *bs, BlockDriverInfo *bdi) +static int coroutine_fn +qcow_co_get_info(BlockDriverState *bs, BlockDriverInfo *bdi) { BDRVQcowState *s = bs->opaque; bdi->cluster_size = s->cluster_size; @@ -1198,7 +1199,7 @@ static BlockDriver bdrv_qcow = { .bdrv_make_empty = qcow_make_empty, .bdrv_co_pwritev_compressed = qcow_co_pwritev_compressed, - .bdrv_get_info = qcow_get_info, + .bdrv_co_get_info = qcow_co_get_info, .create_opts = &qcow_create_opts, .strong_runtime_opts = qcow_strong_runtime_opts, |