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qemu-iotests: test zone append operation

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The patch tests zone append writes by reporting the zone wp after
the completion of the call. "zap -p" option can print the sector
offset value after completion, which should be the start sector
where the append write begins.

Signed-off-by: Sam Li <faithilikerun@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20230508051510.177850-4-faithilikerun@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Sam Li 2023-05-08 13:15:09 +08:00 • committed by Stefan Hajnoczi
parent 4751d09adc
commit fe4fe70d27
3 changed files with 107 additions and 0 deletions
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75
qemu-io-cmds.c
View file

@ -1874,6 +1874,80 @@ static const cmdinfo_t zone_reset_cmd = {
.oneline = "reset a zone write pointer in zone block device",
};
static int do_aio_zone_append(BlockBackend *blk, QEMUIOVector *qiov,
int64_t *offset, int flags, int *total)
{
int async_ret = NOT_DONE;
blk_aio_zone_append(blk, offset, qiov, flags, aio_rw_done, &async_ret);
while (async_ret == NOT_DONE) {
main_loop_wait(false);
}
*total = qiov->size;
return async_ret < 0 ? async_ret : 1;
}
static int zone_append_f(BlockBackend *blk, int argc, char **argv)
{
int ret;
bool pflag = false;
int flags = 0;
int total = 0;
int64_t offset;
char *buf;
int c, nr_iov;
int pattern = 0xcd;
QEMUIOVector qiov;
if (optind > argc - 3) {
return -EINVAL;
}
if ((c = getopt(argc, argv, "p")) != -1) {
pflag = true;
}
offset = cvtnum(argv[optind]);
if (offset < 0) {
print_cvtnum_err(offset, argv[optind]);
return offset;
}
optind++;
nr_iov = argc - optind;
buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern,
flags & BDRV_REQ_REGISTERED_BUF);
if (buf == NULL) {
return -EINVAL;
}
ret = do_aio_zone_append(blk, &qiov, &offset, flags, &total);
if (ret < 0) {
printf("zone append failed: %s\n", strerror(-ret));
goto out;
}
if (pflag) {
printf("After zap done, the append sector is 0x%" PRIx64 "\n",
tosector(offset));
}
out:
qemu_io_free(blk, buf, qiov.size,
flags & BDRV_REQ_REGISTERED_BUF);
qemu_iovec_destroy(&qiov);
return ret;
}
static const cmdinfo_t zone_append_cmd = {
.name = "zone_append",
.altname = "zap",
.cfunc = zone_append_f,
.argmin = 3,
.argmax = 4,
.args = "offset len [len..]",
.oneline = "append write a number of bytes at a specified offset",
};
static int truncate_f(BlockBackend *blk, int argc, char **argv);
static const cmdinfo_t truncate_cmd = {
.name = "truncate",
@ -2672,6 +2746,7 @@ static void __attribute((constructor)) init_qemuio_commands(void)
qemuio_add_command(&zone_close_cmd);
qemuio_add_command(&zone_finish_cmd);
qemuio_add_command(&zone_reset_cmd);
qemuio_add_command(&zone_append_cmd);
qemuio_add_command(&truncate_cmd);
qemuio_add_command(&length_cmd);
qemuio_add_command(&info_cmd);