[PATCH] Don't rely on having LP64 in semaphores if 64b atomic ops are available.

[Torvald Riegel]

This attempts to fix an issue in the new semaphore implementation for
archs that provide 64b atomic ops but do not use an LP64 data model.
This affects MIPS N32 ABI and x32 too I guess.

Steve, can you test this patch please?  I'll do the same on x86_64-linux
in the meantime.

Also, do we already have any information on which data models we
support?  I reckon LP64 and ILP32?, or others as well?  I'd like to add
a comment to atomic.h, and if we have such information already, I'd just
point to it.


2015-01-22  Torvald Riegel  <triegel@redhat.com>

	* nptl/sem_post.c (__new_sem_post): Don't rely on an LP64 data model.
	* nptl/sem_waitcommon.c (__sem_wait_cleanup, __new_sem_wait_fast,
	__new_sem_wait_slow): Likewise.
	* sysdeps/nptl/internaltypes.h (struct new_sem): Likewise.
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