diff options
| -rw-r--r-- | qga/commands-posix.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/qga/commands-posix.c b/qga/commands-posix.c index ea37c097cf..73d93eb5ce 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1243,6 +1243,9 @@ int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, * filesystems may not implement fsfreeze for less obvious reasons. * these will report EOPNOTSUPP. we simply ignore these when tallying * the number of frozen filesystems. + * if a filesystem is mounted more than once (aka bind mount) a + * consecutive attempt to freeze an already frozen filesystem will + * return EBUSY. * * any other error means a failure to freeze a filesystem we * expect to be freezable, so return an error in those cases @@ -1250,7 +1253,7 @@ int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, */ ret = ioctl(fd, FIFREEZE); if (ret == -1) { - if (errno != EOPNOTSUPP) { + if (errno != EOPNOTSUPP && errno != EBUSY) { error_setg_errno(errp, errno, "failed to freeze %s", mount->dirname); close(fd); |