y2038: futex: Move compat implementation into futex.c
authorArnd Bergmann <arnd@arndb.de>
Tue, 17 Apr 2018 14:31:07 +0000 (16:31 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 1 Dec 2019 08:17:38 +0000 (09:17 +0100)
commitd3f8c58d701caa5fb18fcea8ff93946b747b8d8a
tree42550ffb2d6888604f0c73d85c1ecb3726821545
parent344966da99c962bea479298e4d3744e0c6a513f1
y2038: futex: Move compat implementation into futex.c

commit 04e7712f4460585e5eed5b853fd8b82a9943958f upstream.

We are going to share the compat_sys_futex() handler between 64-bit
architectures and 32-bit architectures that need to deal with both 32-bit
and 64-bit time_t, and this is easier if both entry points are in the
same file.

In fact, most other system call handlers do the same thing these days, so
let's follow the trend here and merge all of futex_compat.c into futex.c.

In the process, a few minor changes have to be done to make sure everything
still makes sense: handle_futex_death() and futex_cmpxchg_enabled() become
local symbol, and the compat version of the fetch_robust_entry() function
gets renamed to compat_fetch_robust_entry() to avoid a symbol clash.

This is intended as a purely cosmetic patch, no behavior should
change.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
include/linux/futex.h
kernel/Makefile
kernel/futex.c
kernel/futex_compat.c [deleted file]