diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2023-05-04 13:57:41 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-05-10 14:16:53 +0200 |
| commit | 622d30af9930e9eb791cf6344633c256e328a7ef (patch) | |
| tree | 29fd314389c2717c73d0a73d8ea851a7c803270e /block/vhdx.c | |
| parent | 69aa0d371f67b1c042ed4f3ff4a481d561b54d21 (diff) | |
| download | qemu-622d30af9930e9eb791cf6344633c256e328a7ef.zip qemu-622d30af9930e9eb791cf6344633c256e328a7ef.tar.gz qemu-622d30af9930e9eb791cf6344633c256e328a7ef.tar.bz2 | |
vhdx: Require GRAPH_RDLOCK for accessing a node's parent list
This adds GRAPH_RDLOCK annotations to declare that functions accessing
the parent list of a node need to hold a reader lock for the graph. As
it happens, they already do.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230504115750.54437-12-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/vhdx.c')
| -rw-r--r-- | block/vhdx.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/block/vhdx.c b/block/vhdx.c index 00777da..b20b1ed 100644 --- a/block/vhdx.c +++ b/block/vhdx.c @@ -1506,8 +1506,9 @@ exit: * There are 2 headers, and the highest sequence number will represent * the active header */ -static int vhdx_create_new_headers(BlockBackend *blk, uint64_t image_size, - uint32_t log_size) +static int coroutine_fn GRAPH_RDLOCK +vhdx_create_new_headers(BlockBackend *blk, uint64_t image_size, + uint32_t log_size) { BlockDriverState *bs = blk_bs(blk); BdrvChild *child; @@ -1897,8 +1898,8 @@ exit: * .---- ~ ----------- ~ ------------ ~ ---------------- ~ -----------. * 1MB */ -static int coroutine_fn vhdx_co_create(BlockdevCreateOptions *opts, - Error **errp) +static int coroutine_fn GRAPH_RDLOCK +vhdx_co_create(BlockdevCreateOptions *opts, Error **errp) { BlockdevCreateOptionsVhdx *vhdx_opts; BlockBackend *blk = NULL; |