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nommu: don't need get_unmapped_area() for NOMMU

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get_unmapped_area() is unnecessary for NOMMU as no-one calls it.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Howells
2010-01-15 17:01:35 -08:00
committed by Linus Torvalds
parent 779c10232c
commit efc1a3b169
4 changed files with 8 additions and 24 deletions
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7
include/linux/sched.h
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@@ -377,6 +377,8 @@ extern int sysctl_max_map_count;
#include <linux/aio.h>
#ifdef CONFIG_MMU
extern void arch_pick_mmap_layout(struct mm_struct *mm);
extern unsigned long
arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
unsigned long, unsigned long);
@@ -386,6 +388,9 @@ arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
unsigned long flags);
extern void arch_unmap_area(struct mm_struct *, unsigned long);
extern void arch_unmap_area_topdown(struct mm_struct *, unsigned long);
#else
static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
#endif
#if USE_SPLIT_PTLOCKS
/*
@@ -2491,8 +2496,6 @@ static inline void set_task_cpu(struct task_struct *p, unsigned int cpu)
#endif /* CONFIG_SMP */
extern void arch_pick_mmap_layout(struct mm_struct *mm);
#ifdef CONFIG_TRACING
extern void
__trace_special(void *__tr, void *__data,