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block: Add BdrvChildRole to BdrvChild

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For now, it is always set to 0.  Later patches in this series will
ensure that all callers pass an appropriate combination of flags.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200513110544.176672-6-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2020-05-13 13:05:15 +02:00 • committed by Kevin Wolf
parent 3284bcf430
commit 258b776515
31 changed files with 62 additions and 49 deletions
Download patch file Download diff file Expand all files Collapse all files

20
tests/test-bdrv-drain.c
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@ -1202,7 +1202,7 @@ static void do_test_delete_by_drain(bool detach_instead_of_delete,
null_bs = bdrv_open("null-co://", NULL, NULL, BDRV_O_RDWR | BDRV_O_PROTOCOL,
&error_abort);
bdrv_attach_child(bs, null_bs, "null-child", &child_file, &error_abort);
bdrv_attach_child(bs, null_bs, "null-child", &child_file, 0, &error_abort);
/* This child will be the one to pass to requests through to, and
* it will stall until a drain occurs */
@ -1211,13 +1211,13 @@ static void do_test_delete_by_drain(bool detach_instead_of_delete,
child_bs->total_sectors = 65536 >> BDRV_SECTOR_BITS;
/* Takes our reference to child_bs */
tts->wait_child = bdrv_attach_child(bs, child_bs, "wait-child", &child_file,
&error_abort);
0, &error_abort);
/* This child is just there to be deleted
* (for detach_instead_of_delete == true) */
null_bs = bdrv_open("null-co://", NULL, NULL, BDRV_O_RDWR | BDRV_O_PROTOCOL,
&error_abort);
bdrv_attach_child(bs, null_bs, "null-child", &child_file, &error_abort);
bdrv_attach_child(bs, null_bs, "null-child", &child_file, 0, &error_abort);
blk = blk_new(qemu_get_aio_context(), BLK_PERM_ALL, BLK_PERM_ALL);
blk_insert_bs(blk, bs, &error_abort);
@ -1314,7 +1314,7 @@ static void detach_indirect_bh(void *opaque)
bdrv_ref(data->c);
data->child_c = bdrv_attach_child(data->parent_b, data->c, "PB-C",
&child_file, &error_abort);
&child_file, 0, &error_abort);
}
static void detach_by_parent_aio_cb(void *opaque, int ret)
@ -1396,13 +1396,15 @@ static void test_detach_indirect(bool by_parent_cb)
/* Set child relationships */
bdrv_ref(b);
bdrv_ref(a);
child_b = bdrv_attach_child(parent_b, b, "PB-B", &child_file, &error_abort);
child_a = bdrv_attach_child(parent_b, a, "PB-A", &child_backing, &error_abort);
child_b = bdrv_attach_child(parent_b, b, "PB-B", &child_file, 0,
&error_abort);
child_a = bdrv_attach_child(parent_b, a, "PB-A", &child_backing, 0,
&error_abort);
bdrv_ref(a);
bdrv_attach_child(parent_a, a, "PA-A",
by_parent_cb ? &child_file : &detach_by_driver_cb_class,
&error_abort);
0, &error_abort);
g_assert_cmpint(parent_a->refcnt, ==, 1);
g_assert_cmpint(parent_b->refcnt, ==, 1);
@ -1813,7 +1815,7 @@ static void test_drop_intermediate_poll(void)
/* Takes the reference to chain[i - 1] */
chain[i]->backing = bdrv_attach_child(chain[i], chain[i - 1],
"chain", &chain_child_class,
&error_abort);
0, &error_abort);
}
}
@ -2031,7 +2033,7 @@ static void do_test_replace_child_mid_drain(int old_drain_count,
bdrv_ref(old_child_bs);
parent_bs->backing = bdrv_attach_child(parent_bs, old_child_bs, "child",
&child_backing, &error_abort);
&child_backing, 0, &error_abort);
for (i = 0; i < old_drain_count; i++) {
bdrv_drained_begin(old_child_bs);