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btrfs: make static code static & remove dead code

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Big patch, but all it does is add statics to functions which
are in fact static, then remove the associated dead-code fallout.

removed functions:

btrfs_iref_to_path()
__btrfs_lookup_delayed_deletion_item()
__btrfs_search_delayed_insertion_item()
__btrfs_search_delayed_deletion_item()
find_eb_for_page()
btrfs_find_block_group()
range_straddles_pages()
extent_range_uptodate()
btrfs_file_extent_length()
btrfs_scrub_cancel_devid()
btrfs_start_transaction_lflush()

btrfs_print_tree() is left because it is used for debugging.
btrfs_start_transaction_lflush() and btrfs_reada_detach() are
left for symmetry.

ulist.c functions are left, another patch will take care of those.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This commit is contained in:
Eric Sandeen
2013-04-25 20:41:01 +00:00
committed by Josef Bacik
parent 634554dc0a
commit 48a3b6366f
34 changed files with 135 additions and 392 deletions
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43
fs/btrfs/disk-io.c
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@ -70,6 +70,8 @@ static int btrfs_destroy_marked_extents(struct btrfs_root *root,
int mark);
static int btrfs_destroy_pinned_extent(struct btrfs_root *root,
struct extent_io_tree *pinned_extents);
static int btrfs_cleanup_transaction(struct btrfs_root *root);
static void btrfs_error_commit_super(struct btrfs_root *root);
/*
* end_io_wq structs are used to do processing in task context when an IO is
@ -531,41 +533,6 @@ static noinline int check_leaf(struct btrfs_root *root,
return 0;
}
struct extent_buffer *find_eb_for_page(struct extent_io_tree *tree,
struct page *page, int max_walk)
{
struct extent_buffer *eb;
u64 start = page_offset(page);
u64 target = start;
u64 min_start;
if (start < max_walk)
min_start = 0;
else
min_start = start - max_walk;
while (start >= min_start) {
eb = find_extent_buffer(tree, start, 0);
if (eb) {
/*
* we found an extent buffer and it contains our page
* horray!
*/
if (eb->start <= target &&
eb->start + eb->len > target)
return eb;
/* we found an extent buffer that wasn't for us */
free_extent_buffer(eb);
return NULL;
}
if (start == 0)
break;
start -= PAGE_CACHE_SIZE;
}
return NULL;
}
static int btree_readpage_end_io_hook(struct page *page, u64 start, u64 end,
struct extent_state *state, int mirror)
{
@ -3245,7 +3212,7 @@ int btrfs_calc_num_tolerated_disk_barrier_failures(
return num_tolerated_disk_barrier_failures;
}
int write_all_supers(struct btrfs_root *root, int max_mirrors)
static int write_all_supers(struct btrfs_root *root, int max_mirrors)
{
struct list_head *head;
struct btrfs_device *dev;
@ -3611,7 +3578,7 @@ static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info,
return 0;
}
void btrfs_error_commit_super(struct btrfs_root *root)
static void btrfs_error_commit_super(struct btrfs_root *root)
{
mutex_lock(&root->fs_info->cleaner_mutex);
btrfs_run_delayed_iputs(root);
@ -3879,7 +3846,7 @@ void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
*/
}
int btrfs_cleanup_transaction(struct btrfs_root *root)
static int btrfs_cleanup_transaction(struct btrfs_root *root)
{
struct btrfs_transaction *t;
LIST_HEAD(list);