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authorAkinobu Mita <akinobu.mita@gmail.com>2009-03-11 23:34:50 +0900
committerIngo Molnar <mingo@elte.hu>2009-03-11 15:47:46 +0100
commit12074fa1073013dd11f1cff41db018d5cff4ecd9 (patch)
treec1817acddbbe99b0093340598c1c35f96abb8502
parentbb6d59ca927d855ffac567b35c0a790c67016103 (diff)
x86: debug check for kmap_atomic_pfn and iomap_atomic_prot_pfn()
It may be useful for kmap_atomic_pfn() and iomap_atomic_prot_pfn() to check invalid kmap usage as well as kmap_atomic. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> LKML-Reference: <20090311143449.GB22244@localhost.localdomain> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--arch/x86/mm/highmem_32.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index ae4c8dae2669..f256e73542d7 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -128,6 +128,8 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
pagefault_disable();
+ debug_kmap_atomic_prot(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));