#include "block/blockjob_int.h"
#include "sysemu/block-backend.h"
#include "qapi/error.h"
+#include "qemu/main-loop.h"
#include "iothread.h"
static QemuEvent done_event;
return 0;
}
-static void bdrv_test_child_perm(BlockDriverState *bs, BdrvChild *c,
- const BdrvChildRole *role,
- BlockReopenQueue *reopen_queue,
- uint64_t perm, uint64_t shared,
- uint64_t *nperm, uint64_t *nshared)
-{
- /* bdrv_format_default_perms() accepts only these two, so disguise
- * detach_by_driver_cb_role as one of them. */
- if (role != &child_file && role != &child_backing) {
- role = &child_file;
- }
-
- bdrv_format_default_perms(bs, c, role, reopen_queue, perm, shared,
- nperm, nshared);
-}
-
static int bdrv_test_change_backing_file(BlockDriverState *bs,
const char *backing_file,
const char *backing_fmt)
.bdrv_co_drain_begin = bdrv_test_co_drain_begin,
.bdrv_co_drain_end = bdrv_test_co_drain_end,
- .bdrv_child_perm = bdrv_test_child_perm,
+ .bdrv_child_perm = bdrv_default_perms,
.bdrv_change_backing_file = bdrv_test_change_backing_file,
};
g_assert_cmpint(bs_b->quiesce_counter, ==, 0);
g_assert_cmpint(b_s->drain_count, ==, 0);
+ g_assert_cmpint(qemu_get_aio_context()->external_disable_cnt, ==, 0);
bdrv_unref(bs_b);
blk_unref(blk_b);
&error_abort);
s = bs->opaque;
blk_insert_bs(blk, bs, &error_abort);
+ blk_set_disable_request_queuing(blk, true);
blk_set_aio_context(blk, ctx_a, &error_abort);
aio_context_acquire(ctx_a);
.instance_size = sizeof(TestBlockJob),
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = test_job_run,
.complete = test_job_complete,
.prepare = test_job_prepare,
.bdrv_close = bdrv_test_top_close,
.bdrv_co_preadv = bdrv_test_top_co_preadv,
- .bdrv_child_perm = bdrv_format_default_perms,
+ .bdrv_child_perm = bdrv_default_perms,
};
typedef struct TestCoDeleteByDrainData {
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_of_bds,
+ BDRV_CHILD_DATA, &error_abort);
/* This child will be the one to pass to requests through to, and
* it will stall until a drain occurs */
&error_abort);
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,
+ tts->wait_child = bdrv_attach_child(bs, child_bs, "wait-child",
+ &child_of_bds,
+ BDRV_CHILD_DATA | BDRV_CHILD_PRIMARY,
&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_of_bds, BDRV_CHILD_DATA,
+ &error_abort);
blk = blk_new(qemu_get_aio_context(), BLK_PERM_ALL, BLK_PERM_ALL);
blk_insert_bs(blk, bs, &error_abort);
bdrv_ref(data->c);
data->child_c = bdrv_attach_child(data->parent_b, data->c, "PB-C",
- &child_file, &error_abort);
+ &child_of_bds, BDRV_CHILD_DATA,
+ &error_abort);
}
static void detach_by_parent_aio_cb(void *opaque, int ret)
{
aio_bh_schedule_oneshot(qemu_get_current_aio_context(),
detach_indirect_bh, &detach_by_parent_data);
- child_file.drained_begin(child);
+ child_of_bds.drained_begin(child);
}
-static BdrvChildRole detach_by_driver_cb_role;
+static BdrvChildClass detach_by_driver_cb_class;
/*
* Initial graph:
*
* by_parent_cb == false: Test that bdrv_drain_invoke() doesn't poll
*
- * PA's BdrvChildRole has a .drained_begin callback that schedules a BH
+ * PA's BdrvChildClass has a .drained_begin callback that schedules a BH
* that does the same graph change. If bdrv_drain_invoke() calls it, the
* state is messed up, but if it is only polled in the single
* BDRV_POLL_WHILE() at the end of the drain, this should work fine.
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, NULL, 0);
if (!by_parent_cb) {
- detach_by_driver_cb_role = child_file;
- detach_by_driver_cb_role.drained_begin =
+ detach_by_driver_cb_class = child_of_bds;
+ detach_by_driver_cb_class.drained_begin =
detach_by_driver_cb_drained_begin;
}
/* 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_of_bds,
+ BDRV_CHILD_DATA, &error_abort);
+ child_a = bdrv_attach_child(parent_b, a, "PB-A", &child_of_bds,
+ BDRV_CHILD_COW, &error_abort);
bdrv_ref(a);
bdrv_attach_child(parent_a, a, "PA-A",
- by_parent_cb ? &child_file : &detach_by_driver_cb_role,
- &error_abort);
+ by_parent_cb ? &child_of_bds : &detach_by_driver_cb_class,
+ BDRV_CHILD_DATA, &error_abort);
g_assert_cmpint(parent_a->refcnt, ==, 1);
g_assert_cmpint(parent_b->refcnt, ==, 1);
.instance_size = sizeof(TestDropBackingBlockJob),
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = test_drop_backing_job_run,
.commit = test_drop_backing_job_commit,
}
.instance_size = sizeof(TestSimpleBlockJob),
.free = block_job_free,
.user_resume = block_job_user_resume,
- .drain = block_job_drain,
.run = test_simple_job_run,
.clean = test_simple_job_clean,
},
/**
* Test a poll in the midst of bdrv_drop_intermediate().
*
- * bdrv_drop_intermediate() calls BdrvChildRole.update_filename(),
+ * bdrv_drop_intermediate() calls BdrvChildClass.update_filename(),
* which can yield or poll. This may lead to graph changes, unless
* the whole subtree in question is drained.
*
*
* The solution is for bdrv_drop_intermediate() to drain top's
* subtree. This prevents graph changes from happening just because
- * BdrvChildRole.update_filename() yields or polls. Thus, the block
+ * BdrvChildClass.update_filename() yields or polls. Thus, the block
* job is paused during that drained section and must finish before or
* after.
*
*/
static void test_drop_intermediate_poll(void)
{
- static BdrvChildRole chain_child_role;
+ static BdrvChildClass chain_child_class;
BlockDriverState *chain[3];
TestSimpleBlockJob *job;
BlockDriverState *job_node;
int i;
int ret;
- chain_child_role = child_backing;
- chain_child_role.update_filename = drop_intermediate_poll_update_filename;
+ chain_child_class = child_of_bds;
+ chain_child_class.update_filename = drop_intermediate_poll_update_filename;
for (i = 0; i < 3; i++) {
char name[32];
if (i) {
/* Takes the reference to chain[i - 1] */
chain[i]->backing = bdrv_attach_child(chain[i], chain[i - 1],
- "chain", &chain_child_role,
- &error_abort);
+ "chain", &chain_child_class,
+ BDRV_CHILD_COW, &error_abort);
}
}
}
s->io_co = NULL;
- ret = bdrv_preadv(bs->backing, offset, qiov);
+ ret = bdrv_co_preadv(bs->backing, offset, bytes, qiov, 0);
s->has_read = true;
/* Wake up drain_co if it runs */
.bdrv_co_drain_begin = bdrv_replace_test_co_drain_begin,
.bdrv_co_drain_end = bdrv_replace_test_co_drain_end,
- .bdrv_child_perm = bdrv_format_default_perms,
+ .bdrv_child_perm = bdrv_default_perms,
};
static void coroutine_fn test_replace_child_mid_drain_read_co(void *opaque)
bdrv_ref(old_child_bs);
parent_bs->backing = bdrv_attach_child(parent_bs, old_child_bs, "child",
- &child_backing, &error_abort);
+ &child_of_bds, BDRV_CHILD_COW,
+ &error_abort);
for (i = 0; i < old_drain_count; i++) {
bdrv_drained_begin(old_child_bs);
projects / mirror_qemu.git / blobdiff