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author | Ingo Molnar <mingo@elte.hu> | 2008-10-12 15:17:14 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-10-12 15:17:14 +0200 |
commit | 620f2efcdc5c7a2db68da41bc3df3cf9a718024e (patch) | |
tree | b1a0411e2588953777d0b10245b12044c33cef54 /arch/x86/mm/ioremap.c | |
parent | 04944b793e18ece23f63c0252646b310c1845940 (diff) | |
parent | fd048088306656824958e7783ffcee27e241b361 (diff) | |
download | op-kernel-dev-620f2efcdc5c7a2db68da41bc3df3cf9a718024e.zip op-kernel-dev-620f2efcdc5c7a2db68da41bc3df3cf9a718024e.tar.gz |
Merge branch 'linus' into x86/xsave
Diffstat (limited to 'arch/x86/mm/ioremap.c')
-rw-r--r-- | arch/x86/mm/ioremap.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index d4b6e6a..6ab3196 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -83,6 +83,25 @@ int page_is_ram(unsigned long pagenr) return 0; } +int pagerange_is_ram(unsigned long start, unsigned long end) +{ + int ram_page = 0, not_rampage = 0; + unsigned long page_nr; + + for (page_nr = (start >> PAGE_SHIFT); page_nr < (end >> PAGE_SHIFT); + ++page_nr) { + if (page_is_ram(page_nr)) + ram_page = 1; + else + not_rampage = 1; + + if (ram_page == not_rampage) + return -1; + } + + return ram_page; +} + /* * Fix up the linear direct mapping of the kernel to avoid cache attribute * conflicts. @@ -421,7 +440,7 @@ void unxlate_dev_mem_ptr(unsigned long phys, void *addr) return; } -int __initdata early_ioremap_debug; +static int __initdata early_ioremap_debug; static int __init early_ioremap_debug_setup(char *str) { @@ -547,7 +566,7 @@ static inline void __init early_clear_fixmap(enum fixed_addresses idx) } -int __initdata early_ioremap_nested; +static int __initdata early_ioremap_nested; static int __init check_early_ioremap_leak(void) { |