diff options
| author | Hugh Dickins <hugh.dickins@tiscali.co.uk> | 2009-12-16 08:56:57 +0000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 06:56:12 -0800 |
| commit | f42647acc4eab1befa9e290691ed7a40f9a7d3cc (patch) | |
| tree | b2ced9ee524f8db99ca2ed64d181e0860a60ff94 /include/linux/ksm.h | |
| parent | 8bea8672edfca7ec5f661cafb218f1205863b343 (diff) | |
fix ksm.h breakage of nommu build
Commit 5ad6468801d28c4d4ac9f48ec19297817c915f6a "ksm: let shared pages
be swappable" breaks the build on m68knommu and I suspect on any nommu:
In file included from kernel/fork.c:52:
include/linux/ksm.h:129: warning: 'enum ttu_flags' declared inside parameter list
include/linux/ksm.h:129: warning: its scope is only this definition or declaration, which is probably not what you want
include/linux/ksm.h:129: error: parameter 2 ('flags') has incomplete type
make[1]: *** [kernel/fork.o] Error 1
make[1]: *** Waiting for unfinished jobs....
Let's fix that with CONFIG_MMU around most of the !CONFIG_KSM declarations.
Reported-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Tested-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/ksm.h')
| -rw-r--r-- | include/linux/ksm.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/include/linux/ksm.h b/include/linux/ksm.h index bed5f16ba82..43bdab769fc 100644 --- a/include/linux/ksm.h +++ b/include/linux/ksm.h @@ -94,12 +94,6 @@ void ksm_migrate_page(struct page *newpage, struct page *oldpage); #else /* !CONFIG_KSM */ -static inline int ksm_madvise(struct vm_area_struct *vma, unsigned long start, - unsigned long end, int advice, unsigned long *vm_flags) -{ - return 0; -} - static inline int ksm_fork(struct mm_struct *mm, struct mm_struct *oldmm) { return 0; @@ -114,6 +108,13 @@ static inline int PageKsm(struct page *page) return 0; } +#ifdef CONFIG_MMU +static inline int ksm_madvise(struct vm_area_struct *vma, unsigned long start, + unsigned long end, int advice, unsigned long *vm_flags) +{ + return 0; +} + static inline struct page *ksm_might_need_to_copy(struct page *page, struct vm_area_struct *vma, unsigned long address) { @@ -140,6 +141,7 @@ static inline int rmap_walk_ksm(struct page *page, int (*rmap_one)(struct page*, static inline void ksm_migrate_page(struct page *newpage, struct page *oldpage) { } +#endif /* CONFIG_MMU */ #endif /* !CONFIG_KSM */ #endif /* __LINUX_KSM_H */ |