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x86, mm: fix misuse of debug_kmap_atomic

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Impact: fix CONFIG_DEBUG_HIGHMEM=y breakage

Commit 7ca43e756 ("mm: use debug_kmap_atomic") introduced some
debug_kmap_atomic() calls in the wrong places.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <20090402070126.GA3951@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Akinobu Mita 2009-04-02 16:01:26 +09:00 committed by Ingo Molnar
parent 83f2f0ed71
commit a7f8c50d90
2 changed files with 1 additions and 2 deletions
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1
arch/x86/mm/highmem_32.c
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@ -40,7 +40,6 @@ void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
debug_kmap_atomic(type);
debug_kmap_atomic(type);
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
BUG_ON(!pte_none(*(kmap_pte-idx)));

2
arch/x86/mm/iomap_32.c
View File

@ -39,6 +39,7 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
pagefault_disable();
debug_kmap_atomic(type);
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
@ -72,7 +73,6 @@ iounmap_atomic(void *kvaddr, enum km_type type)
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
debug_kmap_atomic(type);
/*
* Force other mappings to Oops if they'll try to access this pte
* without first remap it. Keeping stale mappings around is a bad idea