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authorEric Dumazet <dada1@cosmosbay.com>2007-02-13 07:26:21 -0500
committerAndi Kleen <andi@basil.nowhere.org>2007-02-13 07:26:21 -0500
commit5809f9d442e9dbb23859e2c37d8c47043f6b5cc9 (patch)
tree24c634f6de962734a1a6a8b94504d9555a35fcea /include/asm-x86_64
parent26054ed02bb20f5b2e02d92cb6f0be0e2b0196d5 (diff)
[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>
Diffstat (limited to 'include/asm-x86_64')
-rw-r--r--include/asm-x86_64/vsyscall.h5
1 files changed, 0 insertions, 5 deletions
diff --git a/include/asm-x86_64/vsyscall.h b/include/asm-x86_64/vsyscall.h
index 05cb8dd200de..0c7847165eae 100644
--- a/include/asm-x86_64/vsyscall.h
+++ b/include/asm-x86_64/vsyscall.h
@@ -56,11 +56,6 @@ extern struct vxtime_data vxtime;
56extern int vgetcpu_mode; 56extern int vgetcpu_mode;
57extern struct timezone sys_tz; 57extern struct timezone sys_tz;
58extern int sysctl_vsyscall; 58extern int sysctl_vsyscall;
59extern seqlock_t xtime_lock;
60
61extern int sysctl_vsyscall;
62
63#define ARCH_HAVE_XTIME_LOCK 1
64 59
65#endif /* __KERNEL__ */ 60#endif /* __KERNEL__ */
66 61