> From: Fam Zheng [mailto:f...@redhat.com] > Sent: Friday, 21 July 2017 3:21 > > It is reported that on Windows Subsystem for Linux, ofd operations fail > with -EINVAL. In other words, QEMU binary built with system headers that > exports F_OFD_SETLK doesn't necessarily run in an environment that > actually supports it: > > $ qemu-system-aarch64 ... -drive file=test.vhdx,if=none,id=hd0 \ > -device virtio-blk-pci,drive=hd0 > qemu-system-aarch64: -drive file=test.vhdx,if=none,id=hd0: Failed to unlock > byte 100 > qemu-system-aarch64: -drive file=test.vhdx,if=none,id=hd0: Failed to unlock > byte 100 > qemu-system-aarch64: -drive file=test.vhdx,if=none,id=hd0: Failed to lock > byte 100 > > Let's do a runtime check to cope with that. > > Reported-by: Andrew Baumann <andrew.baum...@microsoft.com> > Signed-off-by: Fam Zheng <f...@redhat.com> > --- > block/file-posix.c | 19 ++++++++----------- > 1 file changed, 8 insertions(+), 11 deletions(-)
If it helps: Tested-By: Andrew Baumann <andrew.baum...@microsoft.com> Thanks! Andrew
