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graph-lock: remove AioContext locking

Browse source 
Stop acquiring/releasing the AioContext lock in
bdrv_graph_wrlock()/bdrv_graph_unlock() since the lock no longer has any
effect.

The distinction between bdrv_graph_wrunlock() and
bdrv_graph_wrunlock_ctx() becomes meaningless and they can be collapsed
into one function.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20231205182011.1976568-6-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2023-12-05 13:20:02 -05:00 • committed by Kevin Wolf
parent b5f4fda4fb
commit 6bc30f1949
20 changed files with 133 additions and 193 deletions
Download patch file Download diff file Expand all files Collapse all files

8
block/quorum.c
View file

@ -1037,14 +1037,14 @@ static int quorum_open(BlockDriverState *bs, QDict *options, int flags,
close_exit:
/* cleanup on error */
bdrv_graph_wrlock(NULL);
bdrv_graph_wrlock();
for (i = 0; i < s->num_children; i++) {
if (!opened[i]) {
continue;
}
bdrv_unref_child(bs, s->children[i]);
}
bdrv_graph_wrunlock(NULL);
bdrv_graph_wrunlock();
g_free(s->children);
g_free(opened);
exit:
@ -1057,11 +1057,11 @@ static void quorum_close(BlockDriverState *bs)
BDRVQuorumState *s = bs->opaque;
int i;
bdrv_graph_wrlock(NULL);
bdrv_graph_wrlock();
for (i = 0; i < s->num_children; i++) {
bdrv_unref_child(bs, s->children[i]);
}
bdrv_graph_wrunlock(NULL);
bdrv_graph_wrunlock();
g_free(s->children);
}