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Btrfs: get rid of sparse warnings 

make C=2 fs/btrfs/ CF=-D__CHECK_ENDIAN__

I tried to filter out the warnings for which patches have already
been sent to the mailing list, pending for inclusion in btrfs-next.

All these changes should be obviously safe.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Stefan Behrens 2013-08-14 18:12:25 +02:00 committed by Chris Mason
parent 18674c6cc1
commit 35a3621beb
9 changed files with 17 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/btrfs/backref.c
View File

@ -365,7 +365,7 @@ static int __resolve_indirect_refs(struct btrfs_fs_info *fs_info,
node = ulist_next(parents, &uiter);
ref->parent = node ? node->val : 0;
ref->inode_list = node ?
(struct extent_inode_elem *)(uintptr_t)node->aux : 0;
(struct extent_inode_elem *)(uintptr_t)node->aux : NULL;
/* additional parents require new refs being added here */
while ((node = ulist_next(parents, &uiter))) {

2
fs/btrfs/check-integrity.c
View File

@ -2441,7 +2441,7 @@ static int btrfsic_process_written_superblock(
int num_copies;
int mirror_num;
const char *additional_string = NULL;
struct btrfs_disk_key tmp_disk_key;
struct btrfs_disk_key tmp_disk_key = {0};
btrfs_set_disk_key_objectid(&tmp_disk_key,
BTRFS_ROOT_ITEM_KEY);

6
fs/btrfs/ctree.c
View File

@ -1067,7 +1067,7 @@ __tree_mod_log_oldest_root(struct btrfs_fs_info *fs_info,
int looped = 0;
if (!time_seq)
return 0;
return NULL;
/*
* the very last operation that's logged for a root is the replacement
@ -1078,7 +1078,7 @@ __tree_mod_log_oldest_root(struct btrfs_fs_info *fs_info,
tm = tree_mod_log_search_oldest(fs_info, root_logical,
time_seq);
if (!looped && !tm)
return 0;
return NULL;
/*
* if there are no tree operation for the oldest root, we simply
* return it. this should only happen if that (old) root is at
@ -4782,7 +4782,7 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
* This may release the path, and so you may lose any locks held at the
* time you call it.
*/
int btrfs_prev_leaf(struct btrfs_root *root, struct btrfs_path *path)
static int btrfs_prev_leaf(struct btrfs_root *root, struct btrfs_path *path)
{
struct btrfs_key key;
struct btrfs_disk_key found_key;

3
fs/btrfs/ctree.h
View File

@ -3706,6 +3706,9 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
u64 newer_than, unsigned long max_pages);
void btrfs_get_block_group_info(struct list_head *groups_list,
struct btrfs_ioctl_space_info *space);
void update_ioctl_balance_args(struct btrfs_fs_info *fs_info, int lock,
struct btrfs_ioctl_balance_args *bargs);
/* file.c */
int btrfs_auto_defrag_init(void);

2
fs/btrfs/delayed-ref.c
View File

@ -241,7 +241,7 @@ int btrfs_delayed_ref_lock(struct btrfs_trans_handle *trans,
return 0;
}
static void inline drop_delayed_ref(struct btrfs_trans_handle *trans,
static inline void drop_delayed_ref(struct btrfs_trans_handle *trans,
struct btrfs_delayed_ref_root *delayed_refs,
struct btrfs_delayed_ref_node *ref)
{

8
fs/btrfs/disk-io.c
View File

@ -1433,8 +1433,8 @@ int btrfs_add_log_tree(struct btrfs_trans_handle *trans,
return 0;
}
struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root,
struct btrfs_key *key)
static struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root,
struct btrfs_key *key)
{
struct btrfs_root *root;
struct btrfs_fs_info *fs_info = tree_root->fs_info;
@ -3754,8 +3754,8 @@ static void btrfs_destroy_all_ordered_extents(struct btrfs_fs_info *fs_info)
spin_unlock(&fs_info->ordered_root_lock);
}
int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
struct btrfs_root *root)
static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
struct btrfs_root *root)
{
struct rb_node *node;
struct btrfs_delayed_ref_root *delayed_refs;

4
fs/btrfs/extent_io.c
View File

@ -2954,11 +2954,11 @@ static void __extent_readpages(struct extent_io_tree *tree,
struct bio **bio, int mirror_num,
unsigned long *bio_flags, int rw)
{
u64 start;
u64 start = 0;
u64 end = 0;
u64 page_start;
int index;
int first_index;
int first_index = 0;
for (index = 0; index < nr_pages; index++) {
page_start = page_offset(pages[index]);

4
fs/btrfs/send.c
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@ -54,8 +54,8 @@ struct fs_path {
char *buf;
int buf_len;
int reversed:1;
int virtual_mem:1;
unsigned int reversed:1;
unsigned int virtual_mem:1;
char inline_buf[];
};
char pad[PAGE_SIZE];

3
fs/btrfs/volumes.c
View File

@ -3076,9 +3076,6 @@ static void __cancel_balance(struct btrfs_fs_info *fs_info)
atomic_set(&fs_info->mutually_exclusive_operation_running, 0);
}
void update_ioctl_balance_args(struct btrfs_fs_info *fs_info, int lock,
struct btrfs_ioctl_balance_args *bargs);
/*
* Should be called with both balance and volume mutexes held
*/