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authorGeert Uytterhoeven <geert@linux-m68k.org>2013-08-20 13:20:13 +0200
committerChris Mason <chris.mason@fusionio.com>2013-09-01 08:16:14 -0400
commit231e88f41027d90e9516d257d8085069b65686dd (patch)
treeeb05e07a572ca421b1b41d1539095940972465d7 /fs/btrfs
parent1473b24ee0cb43d4b48aa0c5f1b8417928910a4d (diff)
downloadlwn-231e88f41027d90e9516d257d8085069b65686dd.tar.gz
lwn-231e88f41027d90e9516d257d8085069b65686dd.zip
Btrfs: Make btrfs_dev_extent_chunk_tree_uuid() return unsigned long
Internally, btrfs_dev_extent_chunk_tree_uuid() calculates an unsigned long, but casts it to a pointer, while all callers cast it to unsigned long again. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/ctree.h4
-rw-r--r--fs/btrfs/volumes.c3
2 files changed, 3 insertions, 4 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index b71bc3a99342..2202bd8c5e16 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2330,10 +2330,10 @@ BTRFS_SETGET_FUNCS(dev_extent_chunk_offset, struct btrfs_dev_extent,
chunk_offset, 64);
BTRFS_SETGET_FUNCS(dev_extent_length, struct btrfs_dev_extent, length, 64);
-static inline u8 *btrfs_dev_extent_chunk_tree_uuid(struct btrfs_dev_extent *dev)
+static inline unsigned long btrfs_dev_extent_chunk_tree_uuid(struct btrfs_dev_extent *dev)
{
unsigned long ptr = offsetof(struct btrfs_dev_extent, chunk_tree_uuid);
- return (u8 *)((unsigned long)dev + ptr);
+ return (unsigned long)dev + ptr;
}
BTRFS_SETGET_FUNCS(extent_refs, struct btrfs_extent_item, refs, 64);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 8b8c4397165c..34068b887f14 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1311,8 +1311,7 @@ static int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,
btrfs_set_dev_extent_chunk_offset(leaf, extent, chunk_offset);
write_extent_buffer(leaf, root->fs_info->chunk_tree_uuid,
- (unsigned long)btrfs_dev_extent_chunk_tree_uuid(extent),
- BTRFS_UUID_SIZE);
+ btrfs_dev_extent_chunk_tree_uuid(extent), BTRFS_UUID_SIZE);
btrfs_set_dev_extent_length(leaf, extent, num_bytes);
btrfs_mark_buffer_dirty(leaf);