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[PATCH] Make vm86 support optional

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This adds an option to remove vm86 support under CONFIG_EMBEDDED.  Saves
about 5k.

This version eliminates most of the #ifdefs of the previous version and
instead uses function stubs in vm86.h.  Also, release_vm86_irqs is moved
from asm-i386/irq.h to a more appropriate home in vm86.h so that the stubs
can live together.

$ size vmlinux-baseline vmlinux-novm86
   text    data     bss     dec     hex filename
2920821  523232  190652 3634705  377611 vmlinux-baseline
2916268  523100  190492 3629860  376324 vmlinux-novm86

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Matt Mackall
2006-01-08 01:05:26 -08:00
committed by Linus Torvalds
parent 708e9a794c
commit 64ca9004b8
7 changed files with 37 additions and 3 deletions
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2
include/asm-i386/irq.h
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@@ -21,8 +21,6 @@ static __inline__ int irq_canonicalize(int irq)
return ((irq == 2) ? 9 : irq);
}
extern void release_vm86_irqs(struct task_struct *);
#ifdef CONFIG_X86_LOCAL_APIC
# define ARCH_HAS_NMI_WATCHDOG /* See include/linux/nmi.h */
#endif