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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-05-07 09:22:59 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-05-07 09:23:02 +0200 |
| commit | 45e576b1c3d0020607b8666c0247164e92c7d719 (patch) | |
| tree | 6dd4ce57baa7b8377ec2b91ee051cef440d171c8 /include | |
| parent | 74c76c84576eb2d806f40f6cb2fc8302c01869d8 (diff) | |
| download | linux-stable-45e576b1c3d0020607b8666c0247164e92c7d719.tar.gz linux-stable-45e576b1c3d0020607b8666c0247164e92c7d719.tar.bz2 linux-stable-45e576b1c3d0020607b8666c0247164e92c7d719.zip | |
[S390] guest page hinting light
Use the existing arch_alloc_page/arch_free_page callbacks to do
the guest page state transitions between stable and unused.
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-s390/page.h | 11 | ||||
| -rw-r--r-- | include/asm-s390/system.h | 6 |
2 files changed, 17 insertions, 0 deletions
diff --git a/include/asm-s390/page.h b/include/asm-s390/page.h index f0f4579eac13..12fd9c4f0f15 100644 --- a/include/asm-s390/page.h +++ b/include/asm-s390/page.h @@ -125,6 +125,17 @@ page_get_storage_key(unsigned long addr) return skey; } +#ifdef CONFIG_PAGE_STATES + +struct page; +void arch_free_page(struct page *page, int order); +void arch_alloc_page(struct page *page, int order); + +#define HAVE_ARCH_FREE_PAGE +#define HAVE_ARCH_ALLOC_PAGE + +#endif + #endif /* !__ASSEMBLY__ */ /* to align the pointer to the (next) page boundary */ diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h index c819ae25a842..e0d4500d5f95 100644 --- a/include/asm-s390/system.h +++ b/include/asm-s390/system.h @@ -116,6 +116,12 @@ extern void pfault_fini(void); #define pfault_fini() do { } while (0) #endif /* CONFIG_PFAULT */ +#ifdef CONFIG_PAGE_STATES +extern void cmma_init(void); +#else +static inline void cmma_init(void) { } +#endif + #define finish_arch_switch(prev) do { \ set_fs(current->thread.mm_segment); \ account_vtime(prev); \ |