Btrfs: use plain page_address() in header fields setget functions

[pandora-kernel.git] / fs / btrfs / ctree.h

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 8842936..8b99c79 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1415,17 +1415,15 @@ void btrfs_set_##name(struct extent_buffer *eb, type *s, u##bits val);
 #define BTRFS_SETGET_HEADER_FUNCS(name, type, member, bits)            \
 static inline u##bits btrfs_##name(struct extent_buffer *eb)           \
 {                                                                      \
-       type *p = kmap_atomic(eb->first_page, KM_USER0);                \
+       type *p = page_address(eb->first_page);                         \
        u##bits res = le##bits##_to_cpu(p->member);                     \
-       kunmap_atomic(p, KM_USER0);                                     \
        return res;                                                     \
 }                                                                      \
 static inline void btrfs_set_##name(struct extent_buffer *eb,          \
                                    u##bits val)                        \
 {                                                                      \
-       type *p = kmap_atomic(eb->first_page, KM_USER0);                \
+       type *p = page_address(eb->first_page);                         \
        p->member = cpu_to_le##bits(val);                               \
-       kunmap_atomic(p, KM_USER0);                                     \
 }
 
 #define BTRFS_SETGET_STACK_FUNCS(name, type, member, bits)             \