diff options
author | Kevin Wolf <kwolf@redhat.com> | 2023-02-03 16:21:49 +0100 |
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committer | Kevin Wolf <kwolf@redhat.com> | 2023-02-23 19:49:16 +0100 |
commit | 7b1fb72e2c1b9fbca17c13b753aee25f445cad24 (patch) | |
tree | 3a0241dd5be6136426d971c3a8b6f31ba1183052 /block/parallels.c | |
parent | abaf8b750baef0337efb06c1d3465512b5d9b5dc (diff) |
block: Mark read/write in block/io.c GRAPH_RDLOCK
This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_driver_*() need to hold a reader lock for the graph. It doesn't add
the annotation to public functions yet.
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: <20230203152202.49054-11-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/parallels.c')
-rw-r--r-- | block/parallels.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/block/parallels.c b/block/parallels.c index 36c9de8a8a..2cf5061524 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -320,17 +320,15 @@ static int coroutine_fn parallels_co_block_status(BlockDriverState *bs, return BDRV_BLOCK_DATA | BDRV_BLOCK_OFFSET_VALID; } -static coroutine_fn int parallels_co_writev(BlockDriverState *bs, - int64_t sector_num, int nb_sectors, - QEMUIOVector *qiov, int flags) +static int coroutine_fn GRAPH_RDLOCK +parallels_co_writev(BlockDriverState *bs, int64_t sector_num, int nb_sectors, + QEMUIOVector *qiov, int flags) { BDRVParallelsState *s = bs->opaque; uint64_t bytes_done = 0; QEMUIOVector hd_qiov; int ret = 0; - assume_graph_lock(); /* FIXME */ - qemu_iovec_init(&hd_qiov, qiov->niov); while (nb_sectors > 0) { |