diff options
Diffstat (limited to 'block.c')
| -rw-r--r-- | block.c | 21 |
1 files changed, 17 insertions, 4 deletions
@@ -1393,6 +1393,11 @@ static int bdrv_fill_options(QDict **options, const char *filename, return 0; } +static int bdrv_child_check_perm(BdrvChild *c, uint64_t perm, uint64_t shared, + GSList *ignore_children, Error **errp); +static void bdrv_child_abort_perm_update(BdrvChild *c); +static void bdrv_child_set_perm(BdrvChild *c, uint64_t perm, uint64_t shared); + /* * Check whether permissions on this node can be changed in a way that * @cumulative_perms and @cumulative_shared_perms are the new cumulative @@ -1615,8 +1620,8 @@ static int bdrv_check_update_perm(BlockDriverState *bs, uint64_t new_used_perm, /* Needs to be followed by a call to either bdrv_child_set_perm() or * bdrv_child_abort_perm_update(). */ -int bdrv_child_check_perm(BdrvChild *c, uint64_t perm, uint64_t shared, - GSList *ignore_children, Error **errp) +static int bdrv_child_check_perm(BdrvChild *c, uint64_t perm, uint64_t shared, + GSList *ignore_children, Error **errp) { int ret; @@ -1627,7 +1632,7 @@ int bdrv_child_check_perm(BdrvChild *c, uint64_t perm, uint64_t shared, return ret; } -void bdrv_child_set_perm(BdrvChild *c, uint64_t perm, uint64_t shared) +static void bdrv_child_set_perm(BdrvChild *c, uint64_t perm, uint64_t shared) { uint64_t cumulative_perms, cumulative_shared_perms; @@ -1639,7 +1644,7 @@ void bdrv_child_set_perm(BdrvChild *c, uint64_t perm, uint64_t shared) bdrv_set_perm(c->bs, cumulative_perms, cumulative_shared_perms); } -void bdrv_child_abort_perm_update(BdrvChild *c) +static void bdrv_child_abort_perm_update(BdrvChild *c) { bdrv_abort_perm_update(c->bs); } @@ -2025,6 +2030,7 @@ int bdrv_open_backing_file(BlockDriverState *bs, QDict *parent_options, bdrv_set_backing_hd(bs, backing_hd, &local_err); bdrv_unref(backing_hd); if (local_err) { + error_propagate(errp, local_err); ret = -EINVAL; goto free_exit; } @@ -4344,8 +4350,15 @@ void bdrv_attach_aio_context(BlockDriverState *bs, void bdrv_set_aio_context(BlockDriverState *bs, AioContext *new_context) { + AioContext *ctx; + bdrv_drain(bs); /* ensure there are no in-flight requests */ + ctx = bdrv_get_aio_context(bs); + while (aio_poll(ctx, false)) { + /* wait for all bottom halves to execute */ + } + bdrv_detach_aio_context(bs); /* This function executes in the old AioContext so acquire the new one in |