tree 697bb89dbeccae28eb928b2589f500d747ed38ec
parent 2ddcca36c8bcfa251724fe342c8327451988be0d
author Ulrich Drepper <drepper@redhat.com> 1209841837 -0400
committer Linus Torvalds <torvalds@linux-foundation.org> 1209847833 -0700

unified (weak) sys_pipe implementation

This replaces the duplicated arch-specific versions of "sys_pipe()" with
one unified implementation.  This removes almost 250 lines of duplicated
code.

It's marked __weak, so that *if* an architecture wants to override the
default implementation it can do so by simply having its own replacement
version, since many architectures use alternate calling conventions for
the 'pipe()' system call for legacy reasons (ie traditional UNIX
implementations often return the two file descriptors in registers)

I still haven't changed the cris version even though Linus says the BKL
isn't needed.  The arch maintainer can easily do it if there are really
no obstacles.

Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>