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x86: move fpu_counter into ARCH specific thread_struct

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Only a couple of arches (sh/x86) use fpu_counter in task_struct so it can
be moved out into ARCH specific thread_struct, reducing the size of
task_struct for other arches.

Compile tested i386_defconfig + gcc 4.7.3

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mundt <paul.mundt@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Vineet Gupta 2013-11-12 15:08:46 -08:00 • committed by Linus Torvalds
parent 616c05d110
commit c375f15a43
6 changed files with 19 additions and 10 deletions
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2
arch/x86/kernel/traps.c
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@ -653,7 +653,7 @@ void math_state_restore(void)
return;
}
tsk->fpu_counter++;
tsk->thread.fpu_counter++;
}
EXPORT_SYMBOL_GPL(math_state_restore);