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block: Mark bdrv_co_flush() and callers GRAPH_RDLOCK

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This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_co_flush() need to hold a reader lock for the graph.

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: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230203152202.49054-8-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Emanuele Giuseppe Esposito 2023-02-03 16:21:46 +01:00 • committed by Kevin Wolf
parent c16b8bd4e5
commit 8809534933
20 changed files with 98 additions and 60 deletions
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6
block/qed-table.c
View file

@ -63,9 +63,9 @@ out:
*
* Called with table_lock held.
*/
static int coroutine_fn qed_write_table(BDRVQEDState *s, uint64_t offset,
QEDTable *table, unsigned int index,
unsigned int n, bool flush)
static int coroutine_fn GRAPH_RDLOCK
qed_write_table(BDRVQEDState *s, uint64_t offset, QEDTable *table,
unsigned int index, unsigned int n, bool flush)
{
unsigned int sector_mask = BDRV_SECTOR_SIZE / sizeof(uint64_t) - 1;
unsigned int start, end, i;