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Diffstat (limited to 'fs/btrfs/print-tree.c')
-rw-r--r--fs/btrfs/print-tree.c93
1 files changed, 43 insertions, 50 deletions
diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c
index 147dc6ca5de1..438575ea8d25 100644
--- a/fs/btrfs/print-tree.c
+++ b/fs/btrfs/print-tree.c
@@ -24,12 +24,11 @@ static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
{
int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
int i;
- printk(KERN_INFO "\t\tchunk length %llu owner %llu type %llu "
- "num_stripes %d\n",
+ pr_info("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n",
btrfs_chunk_length(eb, chunk), btrfs_chunk_owner(eb, chunk),
btrfs_chunk_type(eb, chunk), num_stripes);
for (i = 0 ; i < num_stripes ; i++) {
- printk(KERN_INFO "\t\t\tstripe %d devid %llu offset %llu\n", i,
+ pr_info("\t\t\tstripe %d devid %llu offset %llu\n", i,
btrfs_stripe_devid_nr(eb, chunk, i),
btrfs_stripe_offset_nr(eb, chunk, i));
}
@@ -37,8 +36,7 @@ static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
static void print_dev_item(struct extent_buffer *eb,
struct btrfs_dev_item *dev_item)
{
- printk(KERN_INFO "\t\tdev item devid %llu "
- "total_bytes %llu bytes used %llu\n",
+ pr_info("\t\tdev item devid %llu total_bytes %llu bytes used %llu\n",
btrfs_device_id(eb, dev_item),
btrfs_device_total_bytes(eb, dev_item),
btrfs_device_bytes_used(eb, dev_item));
@@ -46,8 +44,7 @@ static void print_dev_item(struct extent_buffer *eb,
static void print_extent_data_ref(struct extent_buffer *eb,
struct btrfs_extent_data_ref *ref)
{
- printk(KERN_INFO "\t\textent data backref root %llu "
- "objectid %llu offset %llu count %u\n",
+ pr_info("\t\textent data backref root %llu objectid %llu offset %llu count %u\n",
btrfs_extent_data_ref_root(eb, ref),
btrfs_extent_data_ref_objectid(eb, ref),
btrfs_extent_data_ref_offset(eb, ref),
@@ -72,7 +69,7 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int type)
struct btrfs_extent_item_v0 *ei0;
BUG_ON(item_size != sizeof(*ei0));
ei0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_item_v0);
- printk(KERN_INFO "\t\textent refs %u\n",
+ pr_info("\t\textent refs %u\n",
btrfs_extent_refs_v0(eb, ei0));
return;
#else
@@ -83,7 +80,7 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int type)
ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item);
flags = btrfs_extent_flags(eb, ei);
- printk(KERN_INFO "\t\textent refs %llu gen %llu flags %llu\n",
+ pr_info("\t\textent refs %llu gen %llu flags %llu\n",
btrfs_extent_refs(eb, ei), btrfs_extent_generation(eb, ei),
flags);
@@ -92,8 +89,7 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int type)
struct btrfs_tree_block_info *info;
info = (struct btrfs_tree_block_info *)(ei + 1);
btrfs_tree_block_key(eb, info, &key);
- printk(KERN_INFO "\t\ttree block key (%llu %u %llu) "
- "level %d\n",
+ pr_info("\t\ttree block key (%llu %u %llu) level %d\n",
btrfs_disk_key_objectid(&key), key.type,
btrfs_disk_key_offset(&key),
btrfs_tree_block_level(eb, info));
@@ -110,12 +106,10 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int type)
offset = btrfs_extent_inline_ref_offset(eb, iref);
switch (type) {
case BTRFS_TREE_BLOCK_REF_KEY:
- printk(KERN_INFO "\t\ttree block backref "
- "root %llu\n", offset);
+ pr_info("\t\ttree block backref root %llu\n", offset);
break;
case BTRFS_SHARED_BLOCK_REF_KEY:
- printk(KERN_INFO "\t\tshared block backref "
- "parent %llu\n", offset);
+ pr_info("\t\tshared block backref parent %llu\n", offset);
break;
case BTRFS_EXTENT_DATA_REF_KEY:
dref = (struct btrfs_extent_data_ref *)(&iref->offset);
@@ -123,8 +117,7 @@ static void print_extent_item(struct extent_buffer *eb, int slot, int type)
break;
case BTRFS_SHARED_DATA_REF_KEY:
sref = (struct btrfs_shared_data_ref *)(iref + 1);
- printk(KERN_INFO "\t\tshared data backref "
- "parent %llu count %u\n",
+ pr_info("\t\tshared data backref parent %llu count %u\n",
offset, btrfs_shared_data_ref_count(eb, sref));
break;
default:
@@ -141,8 +134,7 @@ static void print_extent_ref_v0(struct extent_buffer *eb, int slot)
struct btrfs_extent_ref_v0 *ref0;
ref0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_ref_v0);
- printk("\t\textent back ref root %llu gen %llu "
- "owner %llu num_refs %lu\n",
+ printk("\t\textent back ref root %llu gen %llu owner %llu num_refs %lu\n",
btrfs_ref_root_v0(eb, ref0),
btrfs_ref_generation_v0(eb, ref0),
btrfs_ref_objectid_v0(eb, ref0),
@@ -162,7 +154,7 @@ static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
__le64 subvol_id;
read_extent_buffer(l, &subvol_id, offset, sizeof(subvol_id));
- printk(KERN_INFO "\t\tsubvol_id %llu\n",
+ pr_info("\t\tsubvol_id %llu\n",
(unsigned long long)le64_to_cpu(subvol_id));
item_size -= sizeof(u64);
offset += sizeof(u64);
@@ -196,15 +188,13 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
item = btrfs_item_nr(i);
btrfs_item_key_to_cpu(l, &key, i);
type = key.type;
- printk(KERN_INFO "\titem %d key (%llu %u %llu) itemoff %d "
- "itemsize %d\n",
+ pr_info("\titem %d key (%llu %u %llu) itemoff %d itemsize %d\n",
i, key.objectid, type, key.offset,
btrfs_item_offset(l, item), btrfs_item_size(l, item));
switch (type) {
case BTRFS_INODE_ITEM_KEY:
ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
- printk(KERN_INFO "\t\tinode generation %llu size %llu "
- "mode %o\n",
+ pr_info("\t\tinode generation %llu size %llu mode %o\n",
btrfs_inode_generation(l, ii),
btrfs_inode_size(l, ii),
btrfs_inode_mode(l, ii));
@@ -212,13 +202,13 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
case BTRFS_DIR_ITEM_KEY:
di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
btrfs_dir_item_key_to_cpu(l, di, &found_key);
- printk(KERN_INFO "\t\tdir oid %llu type %u\n",
+ pr_info("\t\tdir oid %llu type %u\n",
found_key.objectid,
btrfs_dir_type(l, di));
break;
case BTRFS_ROOT_ITEM_KEY:
ri = btrfs_item_ptr(l, i, struct btrfs_root_item);
- printk(KERN_INFO "\t\troot data bytenr %llu refs %u\n",
+ pr_info("\t\troot data bytenr %llu refs %u\n",
btrfs_disk_root_bytenr(l, ri),
btrfs_disk_root_refs(l, ri));
break;
@@ -227,10 +217,10 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
print_extent_item(l, i, type);
break;
case BTRFS_TREE_BLOCK_REF_KEY:
- printk(KERN_INFO "\t\ttree block backref\n");
+ pr_info("\t\ttree block backref\n");
break;
case BTRFS_SHARED_BLOCK_REF_KEY:
- printk(KERN_INFO "\t\tshared block backref\n");
+ pr_info("\t\tshared block backref\n");
break;
case BTRFS_EXTENT_DATA_REF_KEY:
dref = btrfs_item_ptr(l, i,
@@ -240,7 +230,7 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
case BTRFS_SHARED_DATA_REF_KEY:
sref = btrfs_item_ptr(l, i,
struct btrfs_shared_data_ref);
- printk(KERN_INFO "\t\tshared data backref count %u\n",
+ pr_info("\t\tshared data backref count %u\n",
btrfs_shared_data_ref_count(l, sref));
break;
case BTRFS_EXTENT_DATA_KEY:
@@ -248,17 +238,14 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
struct btrfs_file_extent_item);
if (btrfs_file_extent_type(l, fi) ==
BTRFS_FILE_EXTENT_INLINE) {
- printk(KERN_INFO "\t\tinline extent data "
- "size %u\n",
+ pr_info("\t\tinline extent data size %u\n",
btrfs_file_extent_inline_len(l, i, fi));
break;
}
- printk(KERN_INFO "\t\textent data disk bytenr %llu "
- "nr %llu\n",
+ pr_info("\t\textent data disk bytenr %llu nr %llu\n",
btrfs_file_extent_disk_bytenr(l, fi),
btrfs_file_extent_disk_num_bytes(l, fi));
- printk(KERN_INFO "\t\textent data offset %llu "
- "nr %llu ram %llu\n",
+ pr_info("\t\textent data offset %llu nr %llu ram %llu\n",
btrfs_file_extent_offset(l, fi),
btrfs_file_extent_num_bytes(l, fi),
btrfs_file_extent_ram_bytes(l, fi));
@@ -273,7 +260,7 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
case BTRFS_BLOCK_GROUP_ITEM_KEY:
bi = btrfs_item_ptr(l, i,
struct btrfs_block_group_item);
- printk(KERN_INFO "\t\tblock group used %llu\n",
+ pr_info("\t\tblock group used %llu\n",
btrfs_disk_block_group_used(l, bi));
break;
case BTRFS_CHUNK_ITEM_KEY:
@@ -287,38 +274,36 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
case BTRFS_DEV_EXTENT_KEY:
dev_extent = btrfs_item_ptr(l, i,
struct btrfs_dev_extent);
- printk(KERN_INFO "\t\tdev extent chunk_tree %llu\n"
- "\t\tchunk objectid %llu chunk offset %llu "
- "length %llu\n",
+ pr_info("\t\tdev extent chunk_tree %llu\n\t\tchunk objectid %llu chunk offset %llu length %llu\n",
btrfs_dev_extent_chunk_tree(l, dev_extent),
btrfs_dev_extent_chunk_objectid(l, dev_extent),
btrfs_dev_extent_chunk_offset(l, dev_extent),
btrfs_dev_extent_length(l, dev_extent));
break;
case BTRFS_PERSISTENT_ITEM_KEY:
- printk(KERN_INFO "\t\tpersistent item objectid %llu offset %llu\n",
+ pr_info("\t\tpersistent item objectid %llu offset %llu\n",
key.objectid, key.offset);
switch (key.objectid) {
case BTRFS_DEV_STATS_OBJECTID:
- printk(KERN_INFO "\t\tdevice stats\n");
+ pr_info("\t\tdevice stats\n");
break;
default:
- printk(KERN_INFO "\t\tunknown persistent item\n");
+ pr_info("\t\tunknown persistent item\n");
}
break;
case BTRFS_TEMPORARY_ITEM_KEY:
- printk(KERN_INFO "\t\ttemporary item objectid %llu offset %llu\n",
+ pr_info("\t\ttemporary item objectid %llu offset %llu\n",
key.objectid, key.offset);
switch (key.objectid) {
case BTRFS_BALANCE_OBJECTID:
- printk(KERN_INFO "\t\tbalance status\n");
+ pr_info("\t\tbalance status\n");
break;
default:
- printk(KERN_INFO "\t\tunknown temporary item\n");
+ pr_info("\t\tunknown temporary item\n");
}
break;
case BTRFS_DEV_REPLACE_KEY:
- printk(KERN_INFO "\t\tdev replace\n");
+ pr_info("\t\tdev replace\n");
break;
case BTRFS_UUID_KEY_SUBVOL:
case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
@@ -343,12 +328,13 @@ void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c)
btrfs_print_leaf(root, c);
return;
}
- btrfs_info(root->fs_info, "node %llu level %d total ptrs %d free spc %u",
- btrfs_header_bytenr(c), level, nr,
- (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr);
+ btrfs_info(root->fs_info,
+ "node %llu level %d total ptrs %d free spc %u",
+ btrfs_header_bytenr(c), level, nr,
+ (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr);
for (i = 0; i < nr; i++) {
btrfs_node_key_to_cpu(c, &key, i);
- printk(KERN_INFO "\tkey %d (%llu %u %llu) block %llu\n",
+ pr_info("\tkey %d (%llu %u %llu) block %llu\n",
i, key.objectid, key.type, key.offset,
btrfs_node_blockptr(c, i));
}
@@ -356,6 +342,13 @@ void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c)
struct extent_buffer *next = read_tree_block(root,
btrfs_node_blockptr(c, i),
btrfs_node_ptr_generation(c, i));
+ if (IS_ERR(next)) {
+ continue;
+ } else if (!extent_buffer_uptodate(next)) {
+ free_extent_buffer(next);
+ continue;
+ }
+
if (btrfs_is_leaf(next) &&
level != 1)
BUG();
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.