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btrfs: print-tree: pass const extent buffer pointer

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Since print-tree infrastructure only prints the content of a tree block,
we can make them to accept const extent buffer pointer.

This removes a forced type convert in extent-tree, where we convert a
const extent buffer pointer to regular one, just to avoid compiler
warning.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2023-04-27 20:16:27 +08:00 committed by David Sterba
parent b5345d6cee
commit 6c75a589cb
5 changed files with 14 additions and 14 deletions
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4
fs/btrfs/ctree.c
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@ -3077,7 +3077,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans,
* and nr indicate which items in the leaf to check. This totals up the
* space used both by the item structs and the item data
*/
static int leaf_space_used(struct extent_buffer *l, int start, int nr)
static int leaf_space_used(const struct extent_buffer *l, int start, int nr)
{
int data_len;
int nritems = btrfs_header_nritems(l);
@ -3097,7 +3097,7 @@ static int leaf_space_used(struct extent_buffer *l, int start, int nr)
* the start of the leaf data. IOW, how much room
* the leaf has left for both items and data
*/
noinline int btrfs_leaf_free_space(struct extent_buffer *leaf)
int btrfs_leaf_free_space(const struct extent_buffer *leaf)
{
struct btrfs_fs_info *fs_info = leaf->fs_info;
int nritems = btrfs_header_nritems(leaf);

2
fs/btrfs/ctree.h
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@ -685,7 +685,7 @@ static inline int btrfs_next_item(struct btrfs_root *root, struct btrfs_path *p)
{
return btrfs_next_old_item(root, p, 0);
}
int btrfs_leaf_free_space(struct extent_buffer *leaf);
int btrfs_leaf_free_space(const struct extent_buffer *leaf);
static inline int is_fstree(u64 rootid)
{

2
fs/btrfs/extent-tree.c
View File

@ -402,7 +402,7 @@ int btrfs_get_extent_inline_ref_type(const struct extent_buffer *eb,
}
}
btrfs_print_leaf((struct extent_buffer *)eb);
btrfs_print_leaf(eb);
btrfs_err(eb->fs_info,
"eb %llu iref 0x%lx invalid extent inline ref type %d",
eb->start, (unsigned long)iref, type);

16
fs/btrfs/print-tree.c
View File

@ -49,7 +49,7 @@ const char *btrfs_root_name(const struct btrfs_key *key, char *buf)
return buf;
}
static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
static void print_chunk(const struct extent_buffer *eb, struct btrfs_chunk *chunk)
{
int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
int i;
@ -62,7 +62,7 @@ static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
btrfs_stripe_offset_nr(eb, chunk, i));
}
}
static void print_dev_item(struct extent_buffer *eb,
static void print_dev_item(const struct extent_buffer *eb,
struct btrfs_dev_item *dev_item)
{
pr_info("\t\tdev item devid %llu total_bytes %llu bytes used %llu\n",
@ -70,7 +70,7 @@ static void print_dev_item(struct extent_buffer *eb,
btrfs_device_total_bytes(eb, dev_item),
btrfs_device_bytes_used(eb, dev_item));
}
static void print_extent_data_ref(struct extent_buffer *eb,
static void print_extent_data_ref(const struct extent_buffer *eb,
struct btrfs_extent_data_ref *ref)
{
pr_cont("extent data backref root %llu objectid %llu offset %llu count %u\n",
@ -80,7 +80,7 @@ static void print_extent_data_ref(struct extent_buffer *eb,
btrfs_extent_data_ref_count(eb, ref));
}
static void print_extent_item(struct extent_buffer *eb, int slot, int type)
static void print_extent_item(const struct extent_buffer *eb, int slot, int type)
{
struct btrfs_extent_item *ei;
struct btrfs_extent_inline_ref *iref;
@ -169,7 +169,7 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int type)
WARN_ON(ptr > end);
}
static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
static void print_uuid_item(const struct extent_buffer *l, unsigned long offset,
u32 item_size)
{
if (!IS_ALIGNED(item_size, sizeof(u64))) {
@ -191,7 +191,7 @@ static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
* Helper to output refs and locking status of extent buffer. Useful to debug
* race condition related problems.
*/
static void print_eb_refs_lock(struct extent_buffer *eb)
static void print_eb_refs_lock(const struct extent_buffer *eb)
{
#ifdef CONFIG_BTRFS_DEBUG
btrfs_info(eb->fs_info, "refs %u lock_owner %u current %u",
@ -199,7 +199,7 @@ static void print_eb_refs_lock(struct extent_buffer *eb)
#endif
}
void btrfs_print_leaf(struct extent_buffer *l)
void btrfs_print_leaf(const struct extent_buffer *l)
{
struct btrfs_fs_info *fs_info;
int i;
@ -355,7 +355,7 @@ void btrfs_print_leaf(struct extent_buffer *l)
}
}
void btrfs_print_tree(struct extent_buffer *c, bool follow)
void btrfs_print_tree(const struct extent_buffer *c, bool follow)
{
struct btrfs_fs_info *fs_info;
int i; u32 nr;

4
fs/btrfs/print-tree.h
View File

@ -9,8 +9,8 @@
/* Buffer size to contain tree name and possibly additional data (offset) */
#define BTRFS_ROOT_NAME_BUF_LEN 48
void btrfs_print_leaf(struct extent_buffer *l);
void btrfs_print_tree(struct extent_buffer *c, bool follow);
void btrfs_print_leaf(const struct extent_buffer *l);
void btrfs_print_tree(const struct extent_buffer *c, bool follow);
const char *btrfs_root_name(const struct btrfs_key *key, char *buf);
#endif