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authorEric Dumazet <dada1@cosmosbay.com>2007-05-02 13:27:18 -0400
committerAndi Kleen <andi@basil.nowhere.org>2007-05-02 13:27:18 -0400
commit141a892f57972b01891df7036f567a70459c19ac (patch)
tree9d8c11ad5c6a4080cc7e0b84b3590860a002e11b /arch/x86_64/Makefile
parent0260c196c97e48e4b821031ae55912c22113ed87 (diff)
[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>
Diffstat (limited to 'arch/x86_64/Makefile')
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