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author | Geert Uytterhoeven <geert@linux-m68k.org> | 2013-08-20 13:20:14 +0200 |
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committer | Chris Mason <chris.mason@fusionio.com> | 2013-09-01 08:16:15 -0400 |
commit | fba6aa75654394fccf2530041e9451414c28084f (patch) | |
tree | b204c6ad9f1c7c0a3dcab4508081acd5afd57963 /fs | |
parent | 231e88f41027d90e9516d257d8085069b65686dd (diff) | |
download | op-kernel-dev-fba6aa75654394fccf2530041e9451414c28084f.zip op-kernel-dev-fba6aa75654394fccf2530041e9451414c28084f.tar.gz |
Btrfs: Make btrfs_header_fsid() return unsigned long
Internally, btrfs_header_fsid() 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')
-rw-r--r-- | fs/btrfs/ctree.c | 15 | ||||
-rw-r--r-- | fs/btrfs/ctree.h | 5 | ||||
-rw-r--r-- | fs/btrfs/disk-io.c | 9 | ||||
-rw-r--r-- | fs/btrfs/ioctl.c | 3 |
4 files changed, 11 insertions, 21 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 1d94242..8e3efe3 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -274,8 +274,7 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans, else btrfs_set_header_owner(cow, new_root_objectid); - write_extent_buffer(cow, root->fs_info->fsid, - (unsigned long)btrfs_header_fsid(cow), + write_extent_buffer(cow, root->fs_info->fsid, btrfs_header_fsid(cow), BTRFS_FSID_SIZE); WARN_ON(btrfs_header_generation(buf) > trans->transid); @@ -997,8 +996,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, else btrfs_set_header_owner(cow, root->root_key.objectid); - write_extent_buffer(cow, root->fs_info->fsid, - (unsigned long)btrfs_header_fsid(cow), + write_extent_buffer(cow, root->fs_info->fsid, btrfs_header_fsid(cow), BTRFS_FSID_SIZE); ret = update_ref_for_cow(trans, root, buf, cow, &last_ref); @@ -3109,8 +3107,7 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans, btrfs_set_header_backref_rev(c, BTRFS_MIXED_BACKREF_REV); btrfs_set_header_owner(c, root->root_key.objectid); - write_extent_buffer(c, root->fs_info->fsid, - (unsigned long)btrfs_header_fsid(c), + write_extent_buffer(c, root->fs_info->fsid, btrfs_header_fsid(c), BTRFS_FSID_SIZE); write_extent_buffer(c, root->fs_info->chunk_tree_uuid, @@ -3250,8 +3247,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans, btrfs_set_header_backref_rev(split, BTRFS_MIXED_BACKREF_REV); btrfs_set_header_owner(split, root->root_key.objectid); write_extent_buffer(split, root->fs_info->fsid, - (unsigned long)btrfs_header_fsid(split), - BTRFS_FSID_SIZE); + btrfs_header_fsid(split), BTRFS_FSID_SIZE); write_extent_buffer(split, root->fs_info->chunk_tree_uuid, (unsigned long)btrfs_header_chunk_tree_uuid(split), BTRFS_UUID_SIZE); @@ -4006,8 +4002,7 @@ again: btrfs_set_header_owner(right, root->root_key.objectid); btrfs_set_header_level(right, 0); write_extent_buffer(right, root->fs_info->fsid, - (unsigned long)btrfs_header_fsid(right), - BTRFS_FSID_SIZE); + btrfs_header_fsid(right), BTRFS_FSID_SIZE); write_extent_buffer(right, root->fs_info->chunk_tree_uuid, (unsigned long)btrfs_header_chunk_tree_uuid(right), diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 2202bd8..1b8f5de 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2675,10 +2675,9 @@ static inline void btrfs_set_header_backref_rev(struct extent_buffer *eb, btrfs_set_header_flags(eb, flags); } -static inline u8 *btrfs_header_fsid(struct extent_buffer *eb) +static inline unsigned long btrfs_header_fsid(struct extent_buffer *eb) { - unsigned long ptr = offsetof(struct btrfs_header, fsid); - return (u8 *)ptr; + return offsetof(struct btrfs_header, fsid); } static inline u8 *btrfs_header_chunk_tree_uuid(struct extent_buffer *eb) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 5003466b..d67a2dd 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -495,8 +495,7 @@ static int check_tree_block_fsid(struct btrfs_root *root, u8 fsid[BTRFS_UUID_SIZE]; int ret = 1; - read_extent_buffer(eb, fsid, (unsigned long)btrfs_header_fsid(eb), - BTRFS_FSID_SIZE); + read_extent_buffer(eb, fsid, btrfs_header_fsid(eb), BTRFS_FSID_SIZE); while (fs_devices) { if (!memcmp(fsid, fs_devices->fsid, BTRFS_FSID_SIZE)) { ret = 0; @@ -1292,8 +1291,7 @@ struct btrfs_root *btrfs_create_tree(struct btrfs_trans_handle *trans, btrfs_set_header_owner(leaf, objectid); root->node = leaf; - write_extent_buffer(leaf, fs_info->fsid, - (unsigned long)btrfs_header_fsid(leaf), + write_extent_buffer(leaf, fs_info->fsid, btrfs_header_fsid(leaf), BTRFS_FSID_SIZE); write_extent_buffer(leaf, fs_info->chunk_tree_uuid, (unsigned long)btrfs_header_chunk_tree_uuid(leaf), @@ -1380,8 +1378,7 @@ static struct btrfs_root *alloc_log_tree(struct btrfs_trans_handle *trans, root->node = leaf; write_extent_buffer(root->node, root->fs_info->fsid, - (unsigned long)btrfs_header_fsid(root->node), - BTRFS_FSID_SIZE); + btrfs_header_fsid(root->node), BTRFS_FSID_SIZE); btrfs_mark_buffer_dirty(root->node); btrfs_tree_unlock(root->node); return root; diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 996951a..41addd5 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -436,8 +436,7 @@ static noinline int create_subvol(struct inode *dir, btrfs_set_header_backref_rev(leaf, BTRFS_MIXED_BACKREF_REV); btrfs_set_header_owner(leaf, objectid); - write_extent_buffer(leaf, root->fs_info->fsid, - (unsigned long)btrfs_header_fsid(leaf), + write_extent_buffer(leaf, root->fs_info->fsid, btrfs_header_fsid(leaf), BTRFS_FSID_SIZE); write_extent_buffer(leaf, root->fs_info->chunk_tree_uuid, (unsigned long)btrfs_header_chunk_tree_uuid(leaf), |