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block: Protect bs->file with graph_lock

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Almost all functions that access bs->file already take the graph
lock now. Add locking to the remaining users and finally annotate the
struct field itself as protected by the graph lock.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20231027155333.420094-25-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2023-10-27 17:53:33 +02:00
parent a4b740db5e
commit 1f051dcbdf
15 changed files with 97 additions and 41 deletions
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9
block/raw-format.c
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@ -95,9 +95,9 @@ end:
return ret;
}
static int raw_apply_options(BlockDriverState *bs, BDRVRawState *s,
uint64_t offset, bool has_size, uint64_t size,
Error **errp)
static int GRAPH_RDLOCK
raw_apply_options(BlockDriverState *bs, BDRVRawState *s, uint64_t offset,
bool has_size, uint64_t size, Error **errp)
{
int64_t real_size = 0;
@ -145,6 +145,9 @@ static int raw_reopen_prepare(BDRVReopenState *reopen_state,
uint64_t offset, size;
int ret;
GLOBAL_STATE_CODE();
GRAPH_RDLOCK_GUARD_MAINLOOP();
assert(reopen_state != NULL);
assert(reopen_state->bs != NULL);