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NBD patches for 2020-07-13

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- fix off-by-one truncation in corner-case name display
 - use fcntl correctly
 - iotest cleanups that enable testing an upcoming fix for NBD close
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Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2020-07-13' into staging

NBD patches for 2020-07-13

- fix off-by-one truncation in corner-case name display
- use fcntl correctly
- iotest cleanups that enable testing an upcoming fix for NBD close

# gpg: Signature made Mon 13 Jul 2020 15:11:35 BST
# gpg:                using RSA key 71C2CC22B1C4602927D2F3AAA7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg:                 aka "[jpeg image of size 6874]" [full]
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-nbd-2020-07-13:
  iotests.py: filter_testfiles(): filter SOCK_DIR too
  iotests.py: QemuIoInteractive: print output on failure
  iotests: QemuIoInteractive: use qemu_io_args_no_fmt
  hax: Fix setting of FD_CLOEXEC
  nbd: Avoid off-by-one in long export name truncation

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2020-07-14 13:52:10 +01:00
commit 1a53dfee92
3 changed files with 15 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
block/nbd.c
View File

@ -2002,7 +2002,7 @@ static void nbd_refresh_filename(BlockDriverState *bs)
len = snprintf(bs->exact_filename, sizeof(bs->exact_filename),
"nbd://%s:%s", host, port);
}
if (len > sizeof(bs->exact_filename)) {
if (len >= sizeof(bs->exact_filename)) {
/* Name is too long to represent exactly, so leave it empty. */
bs->exact_filename[0] = '\0';
}

6
target/i386/hax-posix.c
View File

@ -23,7 +23,7 @@ hax_fd hax_mod_open(void)
fprintf(stderr, "Failed to open the hax module\n");
}
fcntl(fd, F_SETFD, FD_CLOEXEC);
qemu_set_cloexec(fd);
return fd;
}
@ -147,7 +147,7 @@ hax_fd hax_host_open_vm(struct hax_state *hax, int vm_id)
fd = open(vm_name, O_RDWR);
g_free(vm_name);
fcntl(fd, F_SETFD, FD_CLOEXEC);
qemu_set_cloexec(fd);
return fd;
}
@ -200,7 +200,7 @@ hax_fd hax_host_open_vcpu(int vmid, int vcpuid)
if (fd < 0) {
fprintf(stderr, "Failed to open the vcpu devfs\n");
}
fcntl(fd, F_SETFD, FD_CLOEXEC);
qemu_set_cloexec(fd);
return fd;
}

15
tests/qemu-iotests/iotests.py
View File

@ -212,12 +212,18 @@ def get_virtio_scsi_device():
class QemuIoInteractive:
def __init__(self, *args):
self.args = qemu_io_args + list(args)
self.args = qemu_io_args_no_fmt + list(args)
self._p = subprocess.Popen(self.args, stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
universal_newlines=True)
assert self._p.stdout.read(9) == 'qemu-io> '
out = self._p.stdout.read(9)
if out != 'qemu-io> ':
# Most probably qemu-io just failed to start.
# Let's collect the whole output and exit.
out += self._p.stdout.read()
self._p.wait(timeout=1)
raise ValueError(out)
def close(self):
self._p.communicate('q\n')
@ -339,8 +345,9 @@ def filter_qmp(qmsg, filter_fn):
return qmsg
def filter_testfiles(msg):
prefix = os.path.join(test_dir, "%s-" % (os.getpid()))
return msg.replace(prefix, 'TEST_DIR/PID-')
pref1 = os.path.join(test_dir, "%s-" % (os.getpid()))
pref2 = os.path.join(sock_dir, "%s-" % (os.getpid()))
return msg.replace(pref1, 'TEST_DIR/PID-').replace(pref2, 'SOCK_DIR/PID-')
def filter_qmp_testfiles(qmsg):
def _filter(_key, value):