[PATCH] S390: Call direct system calls for socket operations.

[Joseph Myers]

On Tue, 13 Oct 2015, Adhemerval Zanella wrote:

> I would prefer to not add another arch-specific implementation, but instead
> use something like __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL and use accept4
> directly in sysdeps/unix/sysv/linux/accept.c. Same for recv and send.

Also note that using recvfrom for recv and sendto for send is what the 
linux/generic implementations do (but not accept4 for accept - I haven't 
checked if that's simply because of the asm-generic syscall interface 
being introduced before accept4).  Maybe there's futher opportunity for 
sharing with those implementations to reduce duplication?

-- 
Joseph S. Myers
joseph@codesourcery.com