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path: root/fs/btrfs/extent-tree.c
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Diffstat (limited to 'fs/btrfs/extent-tree.c')
-rw-r--r--fs/btrfs/extent-tree.c98
1 files changed, 93 insertions, 5 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index b0d9baf5b412..85ee5c79759d 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -75,6 +75,12 @@ int btrfs_lookup_data_extent(struct btrfs_fs_info *fs_info, u64 start, u64 len)
struct btrfs_key key;
BTRFS_PATH_AUTO_FREE(path);
+ if (unlikely(!root)) {
+ btrfs_err(fs_info,
+ "missing extent root for extent at bytenr %llu", start);
+ return -EUCLEAN;
+ }
+
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
@@ -131,6 +137,12 @@ search_again:
key.offset = offset;
extent_root = btrfs_extent_root(fs_info, bytenr);
+ if (unlikely(!extent_root)) {
+ btrfs_err(fs_info,
+ "missing extent root for extent at bytenr %llu", bytenr);
+ return -EUCLEAN;
+ }
+
ret = btrfs_search_slot(NULL, extent_root, &key, path, 0, 0);
if (ret < 0)
return ret;
@@ -436,6 +448,12 @@ static noinline int lookup_extent_data_ref(struct btrfs_trans_handle *trans,
int recow;
int ret;
+ if (unlikely(!root)) {
+ btrfs_err(trans->fs_info,
+ "missing extent root for extent at bytenr %llu", bytenr);
+ return -EUCLEAN;
+ }
+
key.objectid = bytenr;
if (parent) {
key.type = BTRFS_SHARED_DATA_REF_KEY;
@@ -510,6 +528,12 @@ static noinline int insert_extent_data_ref(struct btrfs_trans_handle *trans,
u32 num_refs;
int ret;
+ if (unlikely(!root)) {
+ btrfs_err(trans->fs_info,
+ "missing extent root for extent at bytenr %llu", bytenr);
+ return -EUCLEAN;
+ }
+
key.objectid = bytenr;
if (node->parent) {
key.type = BTRFS_SHARED_DATA_REF_KEY;
@@ -668,6 +692,12 @@ static noinline int lookup_tree_block_ref(struct btrfs_trans_handle *trans,
struct btrfs_key key;
int ret;
+ if (unlikely(!root)) {
+ btrfs_err(trans->fs_info,
+ "missing extent root for extent at bytenr %llu", bytenr);
+ return -EUCLEAN;
+ }
+
key.objectid = bytenr;
if (parent) {
key.type = BTRFS_SHARED_BLOCK_REF_KEY;
@@ -692,6 +722,12 @@ static noinline int insert_tree_block_ref(struct btrfs_trans_handle *trans,
struct btrfs_key key;
int ret;
+ if (unlikely(!root)) {
+ btrfs_err(trans->fs_info,
+ "missing extent root for extent at bytenr %llu", bytenr);
+ return -EUCLEAN;
+ }
+
key.objectid = bytenr;
if (node->parent) {
key.type = BTRFS_SHARED_BLOCK_REF_KEY;
@@ -782,6 +818,12 @@ int lookup_inline_extent_backref(struct btrfs_trans_handle *trans,
bool skinny_metadata = btrfs_fs_incompat(fs_info, SKINNY_METADATA);
int needed;
+ if (unlikely(!root)) {
+ btrfs_err(fs_info,
+ "missing extent root for extent at bytenr %llu", bytenr);
+ return -EUCLEAN;
+ }
+
key.objectid = bytenr;
key.type = BTRFS_EXTENT_ITEM_KEY;
key.offset = num_bytes;
@@ -1680,6 +1722,12 @@ static int run_delayed_extent_op(struct btrfs_trans_handle *trans,
}
root = btrfs_extent_root(fs_info, key.objectid);
+ if (unlikely(!root)) {
+ btrfs_err(fs_info,
+ "missing extent root for extent at bytenr %llu",
+ key.objectid);
+ return -EUCLEAN;
+ }
again:
ret = btrfs_search_slot(trans, root, &key, path, 0, 1);
if (ret < 0) {
@@ -1926,8 +1974,15 @@ static int cleanup_ref_head(struct btrfs_trans_handle *trans,
struct btrfs_root *csum_root;
csum_root = btrfs_csum_root(fs_info, head->bytenr);
- ret = btrfs_del_csums(trans, csum_root, head->bytenr,
- head->num_bytes);
+ if (unlikely(!csum_root)) {
+ btrfs_err(fs_info,
+ "missing csum root for extent at bytenr %llu",
+ head->bytenr);
+ ret = -EUCLEAN;
+ } else {
+ ret = btrfs_del_csums(trans, csum_root, head->bytenr,
+ head->num_bytes);
+ }
}
}
@@ -2379,6 +2434,12 @@ static noinline int check_committed_ref(struct btrfs_inode *inode,
int type;
int ret;
+ if (unlikely(!extent_root)) {
+ btrfs_err(fs_info,
+ "missing extent root for extent at bytenr %llu", bytenr);
+ return -EUCLEAN;
+ }
+
key.objectid = bytenr;
key.type = BTRFS_EXTENT_ITEM_KEY;
key.offset = (u64)-1;
@@ -3093,6 +3154,15 @@ static int do_free_extent_accounting(struct btrfs_trans_handle *trans,
struct btrfs_root *csum_root;
csum_root = btrfs_csum_root(trans->fs_info, bytenr);
+ if (unlikely(!csum_root)) {
+ ret = -EUCLEAN;
+ btrfs_abort_transaction(trans, ret);
+ btrfs_err(trans->fs_info,
+ "missing csum root for extent at bytenr %llu",
+ bytenr);
+ return ret;
+ }
+
ret = btrfs_del_csums(trans, csum_root, bytenr, num_bytes);
if (unlikely(ret)) {
btrfs_abort_transaction(trans, ret);
@@ -3222,7 +3292,11 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
u64 delayed_ref_root = href->owning_root;
extent_root = btrfs_extent_root(info, bytenr);
- ASSERT(extent_root);
+ if (unlikely(!extent_root)) {
+ btrfs_err(info,
+ "missing extent root for extent at bytenr %llu", bytenr);
+ return -EUCLEAN;
+ }
path = btrfs_alloc_path();
if (!path)
@@ -4939,11 +5013,18 @@ static int alloc_reserved_file_extent(struct btrfs_trans_handle *trans,
size += btrfs_extent_inline_ref_size(BTRFS_EXTENT_OWNER_REF_KEY);
size += btrfs_extent_inline_ref_size(type);
+ extent_root = btrfs_extent_root(fs_info, ins->objectid);
+ if (unlikely(!extent_root)) {
+ btrfs_err(fs_info,
+ "missing extent root for extent at bytenr %llu",
+ ins->objectid);
+ return -EUCLEAN;
+ }
+
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
- extent_root = btrfs_extent_root(fs_info, ins->objectid);
ret = btrfs_insert_empty_item(trans, extent_root, path, ins, size);
if (ret) {
btrfs_free_path(path);
@@ -5019,11 +5100,18 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans,
size += sizeof(*block_info);
}
+ extent_root = btrfs_extent_root(fs_info, extent_key.objectid);
+ if (unlikely(!extent_root)) {
+ btrfs_err(fs_info,
+ "missing extent root for extent at bytenr %llu",
+ extent_key.objectid);
+ return -EUCLEAN;
+ }
+
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
- extent_root = btrfs_extent_root(fs_info, extent_key.objectid);
ret = btrfs_insert_empty_item(trans, extent_root, path, &extent_key,
size);
if (ret) {
generated by cgit v1.2.3 (git 2.46.0) at 2026-04-02 18:48:27 +0000