[Qemu-devel] [PATCH 0/2] osdep: warn if open(O_DIRECT) on fails with EINVAL

[Stefan Hajnoczi]

After trying out a few approaches, here is what I think is the simplest viable
way to print a user-friendly warning if opening a file O_DIRECT fails with
EINVAL.  This happens on Linux tmpfs.

We don't really know why we got EINVAL but if O_DIRECT was used it's a good
clue that the file system does not support O_DIRECT.

Stefan Hajnoczi (2):
  libcacard: link against qemu-error.o for error_report()
  osdep: warn if open(O_DIRECT) on fails with EINVAL

 libcacard/Makefile | 3 ++-
 util/osdep.c       | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

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1.8.3.1