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Btrfs: Make btrfs_dev_extent_chunk_tree_uuid() return unsigned long

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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>
This commit is contained in:
Geert Uytterhoeven 2013-08-20 13:20:13 +02:00 committed by Chris Mason
parent 1473b24ee0
commit 231e88f410
2 changed files with 3 additions and 4 deletions
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4
fs/btrfs/ctree.h
View File

@ -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);

3
fs/btrfs/volumes.c
View File

@ -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);