diff options
| author | Nicolas Pitre <nico@cam.org> | 2008-09-11 11:52:02 -0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-11-28 15:36:47 +0000 |
| commit | 252d4c276dc0895834af48743579cf19d1fa150b (patch) | |
| tree | ff0005eeff89ad8bcc5ebd197055ce01cadc96df /arch/arm | |
| parent | 9210807cb5a3f19a0e954dd401e3a2c3626d1b48 (diff) | |
| download | linux-rt-252d4c276dc0895834af48743579cf19d1fa150b.tar.gz | |
[ARM] remove bogus #ifdef CONFIG_HIGHMEM in show_pte()
The restriction on !CONFIG_HIGHMEM is unneeded since page tables are
currently never allocated with highmem pages, and actually disable PTE
dump whenever highmem is configured. Let's have a dynamic test to better
describe the current limitation instead.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mm/fault.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 2df8d9facf57..ffd8b228a139 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -14,6 +14,7 @@ #include <linux/init.h> #include <linux/kprobes.h> #include <linux/uaccess.h> +#include <linux/page-flags.h> #include <asm/system.h> #include <asm/pgtable.h> @@ -83,13 +84,14 @@ void show_pte(struct mm_struct *mm, unsigned long addr) break; } -#ifndef CONFIG_HIGHMEM /* We must not map this if we have highmem enabled */ + if (PageHighMem(pfn_to_page(pmd_val(*pmd) >> PAGE_SHIFT))) + break; + pte = pte_offset_map(pmd, addr); printk(", *pte=%08lx", pte_val(*pte)); printk(", *ppte=%08lx", pte_val(pte[-PTRS_PER_PTE])); pte_unmap(pte); -#endif } while(0); printk("\n"); |