For now, all callers pass 0 and no callee evaluates this value. Later
patches will change both.
Signed-off-by: Max Reitz <mre...@redhat.com>
Reviewed-by: Eric Blake <ebl...@redhat.com>
---
block.c | 22 ++++++++++++----------
block/backup-top.c | 3 ++-
block/blkdebug.c | 5 +++--
block/blklogwrites.c | 9 +++++----
block/commit.c | 1 +
block/copy-on-read.c | 1 +
block/mirror.c | 1 +
block/quorum.c | 1 +
block/replication.c | 1 +
block/vvfat.c | 1 +
include/block/block_int.h | 5 ++++-
tests/test-bdrv-drain.c | 5 +++--
tests/test-bdrv-graph-mod.c | 1 +
13 files changed, 36 insertions(+), 20 deletions(-)
diff --git a/block.c b/block.c
index e8ddf1689e..bfeed6e8d9 100644
--- a/block.c
+++ b/block.c
@@ -1786,12 +1786,12 @@ bool bdrv_is_writable(BlockDriverState *bs)
static void bdrv_child_perm(BlockDriverState *bs, BlockDriverState *child_bs,
BdrvChild *c, const BdrvChildClass *child_class,
- BlockReopenQueue *reopen_queue,
+ BdrvChildRole role, BlockReopenQueue *reopen_queue,
uint64_t parent_perm, uint64_t parent_shared,
uint64_t *nperm, uint64_t *nshared)
{
assert(bs->drv && bs->drv->bdrv_child_perm);
- bs->drv->bdrv_child_perm(bs, c, child_class, reopen_queue,
+ bs->drv->bdrv_child_perm(bs, c, child_class, role, reopen_queue,
parent_perm, parent_shared,
nperm, nshared);
/* TODO Take force_share from reopen_queue */
@@ -1885,7 +1885,7 @@ static int bdrv_check_perm(BlockDriverState *bs,
BlockReopenQueue *q,
uint64_t cur_perm, cur_shared;
bool child_tighten_restr;
- bdrv_child_perm(bs, c->bs, c, c->klass, q,
+ bdrv_child_perm(bs, c->bs, c, c->klass, c->role, q,
cumulative_perms, cumulative_shared_perms,
&cur_perm, &cur_shared);
ret = bdrv_child_check_perm(c, q, cur_perm, cur_shared,
ignore_children,
@@ -1952,7 +1952,7 @@ static void bdrv_set_perm(BlockDriverState *bs, uint64_t
cumulative_perms,
/* Update all children */
QLIST_FOREACH(c, &bs->children, next) {
uint64_t cur_perm, cur_shared;
- bdrv_child_perm(bs, c->bs, c, c->klass, NULL,
+ bdrv_child_perm(bs, c->bs, c, c->klass, c->role, NULL,
cumulative_perms, cumulative_shared_perms,
&cur_perm, &cur_shared);
bdrv_child_set_perm(c, cur_perm, cur_shared);
@@ -2180,14 +2180,15 @@ int bdrv_child_refresh_perms(BlockDriverState *bs,
BdrvChild *c, Error **errp)
uint64_t perms, shared;
bdrv_get_cumulative_perm(bs, &parent_perms, &parent_shared);
- bdrv_child_perm(bs, c->bs, c, c->klass, NULL, parent_perms, parent_shared,
- &perms, &shared);
+ bdrv_child_perm(bs, c->bs, c, c->klass, c->role, NULL,
+ parent_perms, parent_shared, &perms, &shared);
return bdrv_child_try_set_perm(c, perms, shared, errp);
}
void bdrv_filter_default_perms(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
@@ -2198,6 +2199,7 @@ void bdrv_filter_default_perms(BlockDriverState *bs,
BdrvChild *c,
void bdrv_format_default_perms(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
@@ -2210,7 +2212,7 @@ void bdrv_format_default_perms(BlockDriverState *bs,
BdrvChild *c,
/* Apart from the modifications below, the same permissions are
* forwarded and left alone as for filters */
- bdrv_filter_default_perms(bs, c, child_class, reopen_queue,
+ bdrv_filter_default_perms(bs, c, child_class, role, reopen_queue,
perm, shared, &perm, &shared);
/* Format drivers may touch metadata even if the guest doesn't write */
@@ -2486,7 +2488,7 @@ BdrvChild *bdrv_attach_child(BlockDriverState *parent_bs,
bdrv_get_cumulative_perm(parent_bs, &perm, &shared_perm);
assert(parent_bs->drv);
- bdrv_child_perm(parent_bs, child_bs, NULL, child_class, NULL,
+ bdrv_child_perm(parent_bs, child_bs, NULL, child_class, child_role, NULL,
perm, shared_perm, &perm, &shared_perm);
child = bdrv_root_attach_child(child_bs, child_name, child_class,
@@ -3524,7 +3526,7 @@ int bdrv_reopen_multiple(BlockReopenQueue *bs_queue,
Error **errp)
if (state->replace_backing_bs && state->new_backing_bs) {
uint64_t nperm, nshared;
bdrv_child_perm(state->bs, state->new_backing_bs,
- NULL, &child_backing, bs_queue,
+ NULL, &child_backing, 0, bs_queue,
state->perm, state->shared_perm,
&nperm, &nshared);
ret = bdrv_check_update_perm(state->new_backing_bs, NULL,
@@ -3638,7 +3640,7 @@ static void bdrv_reopen_perm(BlockReopenQueue *q,
BlockDriverState *bs,
} else {
uint64_t nperm, nshared;
- bdrv_child_perm(parent->state.bs, bs, c, c->klass, q,
+ bdrv_child_perm(parent->state.bs, bs, c, c->klass, c->role, q,
parent->state.perm, parent->state.shared_perm,
&nperm, &nshared);
diff --git a/block/backup-top.c b/block/backup-top.c
index b13d459e86..9dd89c2fde 100644
--- a/block/backup-top.c
+++ b/block/backup-top.c
@@ -122,6 +122,7 @@ static void backup_top_refresh_filename(BlockDriverState
*bs)
static void backup_top_child_perm(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
@@ -152,7 +153,7 @@ static void backup_top_child_perm(BlockDriverState *bs,
BdrvChild *c,
*nperm = BLK_PERM_WRITE;
} else {
/* Source child */
- bdrv_filter_default_perms(bs, c, child_class, reopen_queue,
+ bdrv_filter_default_perms(bs, c, child_class, role, reopen_queue,
perm, shared, nperm, nshared);
if (perm & BLK_PERM_WRITE) {
diff --git a/block/blkdebug.c b/block/blkdebug.c
index c91e78d5c8..8dd8ed6055 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -994,14 +994,15 @@ static int blkdebug_reopen_prepare(BDRVReopenState
*reopen_state,
static void blkdebug_child_perm(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
{
BDRVBlkdebugState *s = bs->opaque;
- bdrv_filter_default_perms(bs, c, child_class, reopen_queue, perm, shared,
- nperm, nshared);
+ bdrv_filter_default_perms(bs, c, child_class, role, reopen_queue,
+ perm, shared, nperm, nshared);
*nperm |= s->take_child_perms;
*nshared &= ~s->unshare_child_perms;
diff --git a/block/blklogwrites.c b/block/blklogwrites.c
index 739db6dcf6..4faf912ef1 100644
--- a/block/blklogwrites.c
+++ b/block/blklogwrites.c
@@ -283,6 +283,7 @@ static int64_t blk_log_writes_getlength(BlockDriverState
*bs)
static void blk_log_writes_child_perm(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *ro_q,
uint64_t perm, uint64_t shrd,
uint64_t *nperm, uint64_t *nshrd)
@@ -294,11 +295,11 @@ static void blk_log_writes_child_perm(BlockDriverState
*bs, BdrvChild *c,
}
if (!strcmp(c->name, "log")) {
- bdrv_format_default_perms(bs, c, child_class, ro_q, perm, shrd, nperm,
- nshrd);
+ bdrv_format_default_perms(bs, c, child_class, role, ro_q, perm, shrd,
+ nperm, nshrd);
} else {
- bdrv_filter_default_perms(bs, c, child_class, ro_q, perm, shrd, nperm,
- nshrd);
+ bdrv_filter_default_perms(bs, c, child_class, role, ro_q, perm, shrd,
+ nperm, nshrd);
}
}
diff --git a/block/commit.c b/block/commit.c
index a712662633..6d094c8cd1 100644
--- a/block/commit.c
+++ b/block/commit.c
@@ -224,6 +224,7 @@ static void
bdrv_commit_top_refresh_filename(BlockDriverState *bs)
static void bdrv_commit_top_child_perm(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
diff --git a/block/copy-on-read.c b/block/copy-on-read.c
index a2c4e6dc58..a2d92ac394 100644
--- a/block/copy-on-read.c
+++ b/block/copy-on-read.c
@@ -52,6 +52,7 @@ static int cor_open(BlockDriverState *bs, QDict *options, int
flags,
static void cor_child_perm(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
diff --git a/block/mirror.c b/block/mirror.c
index d8506af45a..25c5e8b622 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -1485,6 +1485,7 @@ static void
bdrv_mirror_top_refresh_filename(BlockDriverState *bs)
static void bdrv_mirror_top_child_perm(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
diff --git a/block/quorum.c b/block/quorum.c
index 024de76e6f..d37b77a522 100644
--- a/block/quorum.c
+++ b/block/quorum.c
@@ -1152,6 +1152,7 @@ static char *quorum_dirname(BlockDriverState *bs, Error
**errp)
static void quorum_child_perm(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
diff --git a/block/replication.c b/block/replication.c
index c05df1bc16..9ca5c9368e 100644
--- a/block/replication.c
+++ b/block/replication.c
@@ -161,6 +161,7 @@ static void replication_close(BlockDriverState *bs)
static void replication_child_perm(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
diff --git a/block/vvfat.c b/block/vvfat.c
index 022462d9c9..8e56513604 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -3213,6 +3213,7 @@ err:
static void vvfat_child_perm(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 0f51ff8f5a..826d1bf6bd 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -556,7 +556,7 @@ struct BlockDriver {
* the parents in @parent_perm and @parent_shared.
*
* If @c is NULL, return the permissions for attaching a new child for the
- * given @child_class.
+ * given @child_class and @role.
*
* If @reopen_queue is non-NULL, don't return the currently needed
* permissions, but those that will be needed after applying the
@@ -564,6 +564,7 @@ struct BlockDriver {
*/
void (*bdrv_child_perm)(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t parent_perm, uint64_t parent_shared,
uint64_t *nperm, uint64_t *nshared);
@@ -1257,6 +1258,7 @@ int bdrv_child_refresh_perms(BlockDriverState *bs,
BdrvChild *c, Error **errp);
* all children */
void bdrv_filter_default_perms(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole child_role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared);
@@ -1267,6 +1269,7 @@ void bdrv_filter_default_perms(BlockDriverState *bs,
BdrvChild *c,
* CONSISTENT_READ and doesn't share WRITE. */
void bdrv_format_default_perms(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole child_role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared);
diff --git a/tests/test-bdrv-drain.c b/tests/test-bdrv-drain.c
index c03705ea37..b3d7960bd0 100644
--- a/tests/test-bdrv-drain.c
+++ b/tests/test-bdrv-drain.c
@@ -87,6 +87,7 @@ static int coroutine_fn bdrv_test_co_preadv(BlockDriverState
*bs,
static void bdrv_test_child_perm(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
@@ -99,8 +100,8 @@ static void bdrv_test_child_perm(BlockDriverState *bs,
BdrvChild *c,
child_class = &child_file;
}
- bdrv_format_default_perms(bs, c, child_class, reopen_queue, perm, shared,
- nperm, nshared);
+ bdrv_format_default_perms(bs, c, child_class, role, reopen_queue,
+ perm, shared, nperm, nshared);
}
static int bdrv_test_change_backing_file(BlockDriverState *bs,
diff --git a/tests/test-bdrv-graph-mod.c b/tests/test-bdrv-graph-mod.c
index 8b8c186c9f..3707e2533c 100644
--- a/tests/test-bdrv-graph-mod.c
+++ b/tests/test-bdrv-graph-mod.c
@@ -31,6 +31,7 @@ static BlockDriver bdrv_pass_through = {
static void no_perm_default_perms(BlockDriverState *bs, BdrvChild *c,
const BdrvChildClass *child_class,
+ BdrvChildRole role,
BlockReopenQueue *reopen_queue,
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
--
2.24.1
