diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2021-07-08 13:47:06 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2021-07-09 13:19:11 +0200 |
| commit | 6cf42ca2f9782f0335abf3e6b611fbced40cd099 (patch) | |
| tree | 406d3b9860c22689578a6525d6e7805a6231a2aa /include/block | |
| parent | ab5b522879e2a7880418cbd29340675e5427572f (diff) | |
block: Acquire AioContexts during bdrv_reopen_multiple()
As the BlockReopenQueue can contain nodes in multiple AioContexts, only
one of which may be locked when AIO_WAIT_WHILE() can be called, we can't
let the caller lock the right contexts. Instead, individually lock the
AioContext of a single node when iterating the queue.
Reintroduce bdrv_reopen() as a wrapper for reopening a single node that
drains the node and temporarily drops the AioContext lock for
bdrv_reopen_multiple().
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210708114709.206487-4-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block')
| -rw-r--r-- | include/block/block.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/block/block.h b/include/block/block.h index 6d42992985..3477290f9a 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -388,6 +388,8 @@ BlockReopenQueue *bdrv_reopen_queue(BlockReopenQueue *bs_queue, bool keep_old_opts); void bdrv_reopen_queue_free(BlockReopenQueue *bs_queue); int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp); +int bdrv_reopen(BlockDriverState *bs, QDict *opts, bool keep_old_opts, + Error **errp); int bdrv_reopen_set_read_only(BlockDriverState *bs, bool read_only, Error **errp); int bdrv_pwrite_zeroes(BdrvChild *child, int64_t offset, |