From 410ba3a291081d98f0e58a868e1305110d986903 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 20 Aug 2013 13:20:11 +0200 Subject: [PATCH] Btrfs: Make btrfs_device_uuid() return unsigned long All callers of btrfs_device_uuid() cast its return type to unsigned long. Signed-off-by: Geert Uytterhoeven Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/ctree.h | 4 ++-- fs/btrfs/volumes.c | 10 ++++------ 2 files changed, 6 insertions(+), 8 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 7add85a645a3..b4e70537cada 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2164,9 +2164,9 @@ BTRFS_SETGET_STACK_FUNCS(stack_device_bandwidth, struct btrfs_dev_item, BTRFS_SETGET_STACK_FUNCS(stack_device_generation, struct btrfs_dev_item, generation, 64); -static inline char *btrfs_device_uuid(struct btrfs_dev_item *d) +static inline unsigned long btrfs_device_uuid(struct btrfs_dev_item *d) { - return (char *)d + offsetof(struct btrfs_dev_item, uuid); + return (unsigned long)d + offsetof(struct btrfs_dev_item, uuid); } static inline char *btrfs_device_fsid(struct btrfs_dev_item *d) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 1534a134750f..9ea500465256 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1424,7 +1424,7 @@ static int btrfs_add_device(struct btrfs_trans_handle *trans, btrfs_set_device_bandwidth(leaf, dev_item, 0); btrfs_set_device_start_offset(leaf, dev_item, 0); - ptr = (unsigned long)btrfs_device_uuid(dev_item); + ptr = btrfs_device_uuid(dev_item); write_extent_buffer(leaf, device->uuid, ptr, BTRFS_UUID_SIZE); ptr = (unsigned long)btrfs_device_fsid(dev_item); write_extent_buffer(leaf, root->fs_info->fsid, ptr, BTRFS_UUID_SIZE); @@ -1924,8 +1924,7 @@ static int btrfs_finish_sprout(struct btrfs_trans_handle *trans, dev_item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_dev_item); devid = btrfs_device_id(leaf, dev_item); - read_extent_buffer(leaf, dev_uuid, - (unsigned long)btrfs_device_uuid(dev_item), + read_extent_buffer(leaf, dev_uuid, btrfs_device_uuid(dev_item), BTRFS_UUID_SIZE); read_extent_buffer(leaf, fs_uuid, (unsigned long)btrfs_device_fsid(dev_item), @@ -5760,7 +5759,7 @@ static void fill_device_from_item(struct extent_buffer *leaf, WARN_ON(device->devid == BTRFS_DEV_REPLACE_DEVID); device->is_tgtdev_for_dev_replace = 0; - ptr = (unsigned long)btrfs_device_uuid(dev_item); + ptr = btrfs_device_uuid(dev_item); read_extent_buffer(leaf, device->uuid, ptr, BTRFS_UUID_SIZE); } @@ -5823,8 +5822,7 @@ static int read_one_dev(struct btrfs_root *root, u8 dev_uuid[BTRFS_UUID_SIZE]; devid = btrfs_device_id(leaf, dev_item); - read_extent_buffer(leaf, dev_uuid, - (unsigned long)btrfs_device_uuid(dev_item), + read_extent_buffer(leaf, dev_uuid, btrfs_device_uuid(dev_item), BTRFS_UUID_SIZE); read_extent_buffer(leaf, fs_uuid, (unsigned long)btrfs_device_fsid(dev_item),