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ecbc7f0aa2
Due to not acquiring lock, clang reports:
lib/vlog.c:618:12: error: reading variable 'log_fd' requires holding mutex
'log_file_mutex' [-Werror,-Wthread-safety-analysis]
return log_fd;
The patch fixes it by creating a function in vlog.c to write
directly to log file unsafely.
Tested-at: https://travis-ci.org/github/williamtu/ovs-travis/builds/666165883
Fixes: ecd4a8fcdf ("fatal-signal: Log backtrace when no monitor daemon.")
Suggested-by: Ilya Maximets <i.maximets@ovn.org>
Acked-by: Ilya Maximets <i.maximets@ovn.org>
Signed-off-by: William Tu <u9012063@gmail.com>