Sync with Linux 3.7

[Roland McGrath]

> ok for 2.18?

OK, but as two separate commits.

> 	* sysdeps/gnu/netinet/tcp.h (TCPI_OPT_SYN_DATA)
> 	(TCPI_OPT_ECN_SEEN): Define. Sync with Linux 3.7.

Two spaces between sentences.

> 	* elf/elf.h (NT_S390_TDB, NT_FILE, NT_SIGINFO): Define. New values

Likewise.

> +/* Note to userspace developers: size of NT_SIGINFO note may increase
> +   in the future to accomodate more fields, don't assume it is
> +   fixed!  */
> +#define NT_SIGINFO      0x53494749

This is a kernel-centric comment.  The rest of this file doesn't talk about
the details of the contents.  Just give it a simple comment like the
others (and use tabs):

#define NT_SIGINFO	0x53494749	/* siginfo_t, size might increase */

> +#define NT_FILE         0x46494c45

Use tabs.  Give it a comment.  Is the format of the note defined as C
structs somewhere?


Thanks,
Roland