kern/175674: sem_open() should use O_EXLOCK with open() instead of a separate flock() call

[Eitan Adler]

On 3 February 2013 16:00, Giorgos Keramidas <keramida at freebsd.org> wrote:
> The following reply was made to PR kern/175674; it has been noted by GNATS.
>  > The best way to fix this is in kern_openat() in the kernel but this
>  > might cause compatibility issues.
>
>  Not sure if there would be serious compatibility problems if open() would
>  automatically restart instead of returning EINTR.  It definitely seems a rather
>  intrusive change though.

I can not see major application breakage should open(3) be changed.

That said,  I am confused by jilles' comment:
http://pubs.opengroup.org/onlinepubs/000095399/functions/open.html
open(3) is permitted to return EINTR.

-- 
Eitan Adler