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block: GRAPH_RDLOCK for functions only called by co_wrappers

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The generated coroutine wrappers already take care to take the lock in
the non-coroutine path, and assume that the lock is already taken in the
coroutine path.

The only thing we need to do for the wrapped function is adding the
GRAPH_RDLOCK annotation. Doing so also allows us to mark the
corresponding callbacks in BlockDriver as GRAPH_RDLOCK_PTR.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20221207131838.239125-19-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf
2022-12-07 14:18:38 +01:00
parent 90830f5950
commit 1b3ff9feb9
4 changed files with 23 additions and 18 deletions
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2
block.c
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@@ -5402,6 +5402,7 @@ int coroutine_fn bdrv_co_check(BlockDriverState *bs,
BdrvCheckResult *res, BdrvCheckMode fix)
{
IO_CODE();
assert_bdrv_graph_readable();
if (bs->drv == NULL) {
return -ENOMEDIUM;
}
@@ -6617,6 +6618,7 @@ int coroutine_fn bdrv_co_invalidate_cache(BlockDriverState *bs, Error **errp)
IO_CODE();
assert(!(bs->open_flags & BDRV_O_INACTIVE));
assert_bdrv_graph_readable();
if (bs->drv->bdrv_co_invalidate_cache) {
bs->drv->bdrv_co_invalidate_cache(bs, &local_err);