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authorIngo Molnar <mingo@elte.hu>2008-10-12 12:43:21 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-12 12:43:21 +0200
commitacbaa41a780490c791492c41144c774c04875af1 (patch)
tree31f1f046875eb071e2aed031e5d9d1584742314f /arch/x86/mm/ioremap.c
parent8d89adf44cf750e49691ba5b744b2ad77a05e997 (diff)
parentfd048088306656824958e7783ffcee27e241b361 (diff)
Merge branch 'linus' into x86/quirks
Conflicts: arch/x86/kernel/early-quirks.c
Diffstat (limited to 'arch/x86/mm/ioremap.c')
-rw-r--r--arch/x86/mm/ioremap.c23
1 files changed, 21 insertions, 2 deletions
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index d4b6e6a29ae..6ab3196d12b 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)
{