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| author | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:58 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:58 +0100 |
| commit | 12d6f21eacc21d84a809829543f2fe45c7e37319 (patch) | |
| tree | 6985f2370ad238fb2a568547a5049751d7c95a69 /include | |
| parent | 9a3dc7804e9856668caef41efc54179e61ffccc0 (diff) | |
| download | linux-3.10-12d6f21eacc21d84a809829543f2fe45c7e37319.tar.gz linux-3.10-12d6f21eacc21d84a809829543f2fe45c7e37319.tar.bz2 linux-3.10-12d6f21eacc21d84a809829543f2fe45c7e37319.zip | |
x86: do not PSE on CONFIG_DEBUG_PAGEALLOC=y
get more testing of the c_p_a() code done by not turning off
PSE on DEBUG_PAGEALLOC.
this simplifies the early pagetable setup code, and tests
the largepage-splitup code quite heavily.
In the end, all the largepages will be split up pretty quickly,
so there's no difference to how DEBUG_PAGEALLOC worked before.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86/cacheflush.h | 5 | ||||
| -rw-r--r-- | include/linux/mm.h | 14 |
2 files changed, 13 insertions, 6 deletions
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h index 9411a2d3f19..fccb563e230 100644 --- a/include/asm-x86/cacheflush.h +++ b/include/asm-x86/cacheflush.h @@ -29,11 +29,6 @@ int change_page_attr(struct page *page, int numpages, pgprot_t prot); int change_page_attr_addr(unsigned long addr, int numpages, pgprot_t prot); void clflush_cache_range(void *addr, int size); -#ifdef CONFIG_DEBUG_PAGEALLOC -/* internal debugging function */ -void kernel_map_pages(struct page *page, int numpages, int enable); -#endif - #ifdef CONFIG_DEBUG_RODATA void mark_rodata_ro(void); #endif diff --git a/include/linux/mm.h b/include/linux/mm.h index 3c22d971afa..1bba6789a50 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1118,9 +1118,21 @@ static inline void vm_stat_account(struct mm_struct *mm, } #endif /* CONFIG_PROC_FS */ -#ifndef CONFIG_DEBUG_PAGEALLOC +#ifdef CONFIG_DEBUG_PAGEALLOC +extern int debug_pagealloc_enabled; + +extern void kernel_map_pages(struct page *page, int numpages, int enable); + +static inline void enable_debug_pagealloc(void) +{ + debug_pagealloc_enabled = 1; +} +#else static inline void kernel_map_pages(struct page *page, int numpages, int enable) {} +static inline void enable_debug_pagealloc(void) +{ +} #endif extern struct vm_area_struct *get_gate_vma(struct task_struct *tsk); |