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141a892f57
linux/arch
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Eric Dumazet 141a892f57 [PATCH] x86-64: move __vgetcpu_mode & __jiffies to the vsyscall_2 zone 
We apparently hit the 1024 limit of vsyscall_0 zone when some debugging
options are set, or if __vsyscall_gtod_data is 64 bytes larger.

In order to save 128 bytes from the vsyscall_0 zone, we move __vgetcpu_mode
& __jiffies to vsyscall_2 zone where they really belong, since they are
used only from vgetcpu() (which is in this vsyscall_2 area).

After patch is applied, new layout is :

ffffffffff600000 T vgettimeofday
ffffffffff60004e t vsysc2
ffffffffff600140 t vread_hpet
ffffffffff600150 t vread_tsc
ffffffffff600180 D __vsyscall_gtod_data
ffffffffff600400 T vtime
ffffffffff600413 t vsysc1
ffffffffff600800 T vgetcpu
ffffffffff600870 D __vgetcpu_mode
ffffffffff600880 D __jiffies
ffffffffff600c00 T venosys_1

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@linux-foundation.org>
2007-05-02 19:27:18 +02:00
..
alpha [PATCH] x86: deflate stack usage in lib/inflate.c 2007-05-02 19:27:15 +02:00
arm [PATCH] x86: deflate stack usage in lib/inflate.c 2007-05-02 19:27:15 +02:00
arm26 [PATCH] x86: deflate stack usage in lib/inflate.c 2007-05-02 19:27:15 +02:00
avr32 AVR32: Remove useless config option "GENERIC_BUST_SPINLOCK". 2007-04-27 13:45:26 +02:00
cris [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
frv [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
h8300
i386 [PATCH] i386: PARAVIRT: fix startup_ipi_hook config dependency 2007-05-02 19:27:18 +02:00
ia64 [AF_RXRPC/AFS]: Arch-specific fixes. 2007-04-27 15:28:45 -07:00
m32r [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
m68k
m68knommu
mips [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
parisc [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
powerpc [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
ppc [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
s390 [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
sh [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
sh64 [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
sparc [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
sparc64 [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
um [PATCH] i386: Add an option for the VIA C7 which sets appropriate L1 cache 2007-05-02 19:27:05 +02:00
v850
x86_64 [PATCH] x86-64: move __vgetcpu_mode & __jiffies to the vsyscall_2 zone 2007-05-02 19:27:18 +02:00
xtensa [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00