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block: Export blk_pwritev_part() in block-backend-io.h

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Also convert it into a generated_co_wrapper.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-10-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
This commit is contained in:
Alberto Faria 2022-07-05 17:15:17 +01:00 • committed by Hanna Reitz
parent d1d3fc3d1d
commit 09cca043bf
4 changed files with 23 additions and 19 deletions
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19
tests/unit/test-block-iothread.c
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@ -183,6 +183,21 @@ static void test_sync_op_blk_preadv_part(BlockBackend *blk)
g_assert_cmpint(ret, ==, -EIO);
}
static void test_sync_op_blk_pwritev_part(BlockBackend *blk)
{
uint8_t buf[512] = { 0 };
QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, sizeof(buf));
int ret;
/* Success */
ret = blk_pwritev_part(blk, 0, sizeof(buf), &qiov, 0, 0);
g_assert_cmpint(ret, ==, 0);
/* Early error: Negative offset */
ret = blk_pwritev_part(blk, -2, sizeof(buf), &qiov, 0, 0);
g_assert_cmpint(ret, ==, -EIO);
}
static void test_sync_op_load_vmstate(BdrvChild *c)
{
uint8_t buf[512];
@ -358,6 +373,10 @@ const SyncOpTest sync_op_tests[] = {
.name = "/sync-op/preadv_part",
.fn = NULL,
.blkfn = test_sync_op_blk_preadv_part,
}, {
.name = "/sync-op/pwritev_part",
.fn = NULL,
.blkfn = test_sync_op_blk_pwritev_part,
}, {
.name = "/sync-op/load_vmstate",
.fn = test_sync_op_load_vmstate,