]> err.no Git - linux-2.6/commit
[PATCH] x86-64: get rid of ARCH_HAVE_XTIME_LOCK
authorEric Dumazet <dada1@cosmosbay.com>
Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)
committerAndi Kleen <andi@basil.nowhere.org>
Tue, 13 Feb 2007 12:26:21 +0000 (13:26 +0100)
commit5809f9d442e9dbb23859e2c37d8c47043f6b5cc9
tree24c634f6de962734a1a6a8b94504d9555a35fcea
parent26054ed02bb20f5b2e02d92cb6f0be0e2b0196d5
[PATCH] x86-64: get rid of ARCH_HAVE_XTIME_LOCK

ARCH_HAVE_XTIME_LOCK is used by x86_64 arch .  This arch needs to place a
read only copy of xtime_lock into vsyscall page.  This read only copy is
named __xtime_lock, and xtime_lock is defined in
arch/x86_64/kernel/vmlinux.lds.S as an alias.  So the declaration of
xtime_lock in kernel/timer.c was guarded by ARCH_HAVE_XTIME_LOCK define,
defined to true on x86_64.

We can get same result with _attribute__((weak)) in the declaration. linker
should do the job.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
include/asm-x86_64/vsyscall.h
include/linux/time.h
kernel/timer.c