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authorLi Zefan <lizf@cn.fujitsu.com>2011-08-03 08:11:41 +0000
committerChris Mason <chris.mason@oracle.com>2011-08-16 21:09:15 -0400
commitc97c2916e25c56e878e3e94efd449e2d688fcb31 (patch)
treea535a06a0717816007d1c9efcbddd7dfbc494a34 /fs/btrfs
parentcb1b69f4508a1e8c1a7907379eafceb7ae0325ef (diff)
Btrfs: use plain page_address() in header fields setget functions
We've stopped using highmem for extent buffers. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/ctree.h6
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 884293642a6c..8b99c79ad1a7 100644
--- 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) \