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Defined in 1 files as a prototype:

Defined in 1 files as a function:

Referenced in 2 files:

Smatch caller information:

fs/btrfs/ctree.c update_ref_for_cow() -> btrfs_block_can_be_shared()

Type Parameter Key Value
PARAM_VALUE 0 trans 4096-ptr_max
PARAM_VALUE 0 trans->fs_info->block_group_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->block_group_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->chunk_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->chunk_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->commit_root_sem.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->commit_root_sem.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->dev_replace.rwsem.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->dev_replace.rwsem.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->dev_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->dev_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->quota_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->quota_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->remap_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->remap_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->sb->s_umount.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->sb->s_umount.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->stripe_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->stripe_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->transaction_kthread->sched_class->uclamp_enabled 0-1
PARAM_VALUE 0 trans->fs_info->tree_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->tree_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->uuid_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->uuid_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 1 root 4096-ptr_max
PARAM_VALUE 1 root->fs_info->block_group_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 1 root->fs_info->block_group_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 1 root->fs_info->btree_inode->i_mapping->host->i_sb->s_export_op->encode_fh 0,2,1398972869330624512,1616549510479982592,2037984473558433792
PARAM_VALUE 1 root->fs_info->btree_inode->i_mapping->host->i_sb->s_export_op->fh_to_dentry 0,8684,447817974243774464,687732489194512384,742201802719268864,868497899885588480,1471448175530500096,2021658383390310400,2445877819203563520,2512819722689847296,2649270699546726400,2761259683714371584,2893332316235677696-s64max
PARAM_VALUE 1 root->fs_info->btree_inode->i_mapping->host->i_sb->s_export_op->fh_to_parent 0,4672,5297,4573560380487,148606482432692224,436469935444291584
PARAM_VALUE 1 root->fs_info->btree_inode->i_mapping->host->i_sb->s_export_op->get_parent 0,8931,264940071972966400,291591359766798336,565128213429456896
PARAM_VALUE 1 root->fs_info->chunk_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 1 root->fs_info->chunk_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 1 root->fs_info->commit_root_sem.first_waiter->handoff_set 0-1
PARAM_VALUE 1 root->fs_info->commit_root_sem.first_waiter->type 0-1
PARAM_VALUE 1 root->fs_info->dev_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 1 root->fs_info->dev_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 1 root->fs_info->flush_workers->thresh s32min-s32max
PARAM_VALUE 1 root->fs_info->quota_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 1 root->fs_info->quota_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 1 root->fs_info->running_transaction 4096-ptr_max
PARAM_VALUE 1 root->fs_info->sb->s_cop->inode_info_offs 1632,1720,1808,2632,2648,2704,2712
PARAM_VALUE 1 root->fs_info->stripe_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 1 root->fs_info->stripe_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 1 root->fs_info->tree_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 1 root->fs_info->tree_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 1 root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 1 root->node->lock.first_waiter->type 0-1
PARAM_VALUE 1 root->reloc_root->fs_info->tree_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 1 root->reloc_root->fs_info->tree_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 2 buf 4096-ptr_max
PARAM_VALUE 2 buf->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 2 buf->lock.first_waiter->type 0-1
BUF_SIZE 0 trans (-1),1-s32max
BUF_SIZE 0 trans (-1),1-s32max
BUF_SIZE 0 trans->block_rsv (-1),120
BUF_SIZE 0 trans->pending_snapshot (-1),208
BUF_SIZE 1 root (-1),2888
BUF_SIZE 1 root (-1),2888
BUF_SIZE 2 buf (-1),1-s32max
BUF_SIZE 2 buf (-1),1-s32max
CAPPED_DATA 0 trans->transaction 1
CAPPED_DATA 0 trans->transid 1
CAPPED_DATA 1 root 1
CAPPED_DATA 2 buf 1
CAPPED_DATA 2 buf->len 1
DATA_SOURCE 0 trans $0
DATA_SOURCE 1 root $1
DATA_SOURCE 2 buf $2
STR_LEN 0 trans (-1)-1010101
STR_LEN 0 trans (-1)-1010101
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE 0 trans->fs_info->chunk_root->dirty_log_pages.inode->disk_i_size
NO_OVERFLOW_SIMPLE 0 trans->fs_info->chunk_root->dirty_log_pages.inode->vfs_inode.i_size
NO_OVERFLOW_SIMPLE 0 trans->fs_info->tree_root->dirty_log_pages.inode->disk_i_size
NO_OVERFLOW_SIMPLE 0 trans->fs_info->tree_root->dirty_log_pages.inode->vfs_inode.i_size
NO_OVERFLOW_SIMPLE 0 trans->transaction->dirty_pages.inode->disk_i_size
NO_OVERFLOW_SIMPLE 0 trans->transaction->dirty_pages.inode->vfs_inode.i_bytes
NO_OVERFLOW_SIMPLE 0 trans->transaction->dirty_pages.inode->vfs_inode.i_size
NO_OVERFLOW_SIMPLE 0 trans->transaction->pinned_extents.inode->disk_i_size
NO_OVERFLOW_SIMPLE 0 trans->transaction->pinned_extents.inode->vfs_inode.i_bytes
NO_OVERFLOW_SIMPLE 0 trans->transaction->pinned_extents.inode->vfs_inode.i_size
NO_OVERFLOW_SIMPLE 1 root->dirty_log_pages.inode->vfs_inode.i_bytes
NO_OVERFLOW_SIMPLE 1 root->log_csum_range.inode->vfs_inode.i_bytes
NO_OVERFLOW_SIMPLE 1 root->node->start
NO_OVERFLOW_SIMPLE 2 buf->len
NO_OVERFLOW_SIMPLE 2 buf->start
USER_PTR 0 trans->pending_snapshot->inherit
HALF_LOCKED2 0 &trans->fs_info->commit_root_sem
HALF_LOCKED2 0 &trans->fs_info->fs_devices->device_list_mutex
HALF_LOCKED2 0 &trans->fs_info->fs_roots_radix_lock
HALF_LOCKED2 0 &trans->fs_info->qgroup_ioctl_lock
HALF_LOCKED2 0 &trans->fs_info->qgroup_lock
HALF_LOCKED2 0 &trans->fs_info->unused_bg_unpin_mutex
HALF_LOCKED2 0 &trans->transaction->delayed_refs.lock
HALF_LOCKED2 2 &buf->lock

fs/btrfs/backref.c handle_indirect_tree_backref() -> btrfs_block_can_be_shared()

Type Parameter Key Value
PARAM_VALUE 0 trans 4096-ptr_max
PARAM_VALUE 0 trans->block_rsv->failfast 0
PARAM_VALUE 0 trans->block_rsv->qgroup_rsv_reserved 0
PARAM_VALUE 0 trans->block_rsv->qgroup_rsv_size 0
PARAM_VALUE 0 trans->block_rsv->space_info 0,4096-ptr_max
PARAM_VALUE 0 trans->block_rsv->type 9
PARAM_VALUE 0 trans->fs_info 4096-ptr_max
PARAM_VALUE 0 trans->fs_info->block_group_cache_lock.dep_map->name 0-255
PARAM_VALUE 0 trans->fs_info->block_group_root->refs.refs.counter (-1073741824),0-s32max
PARAM_VALUE 0 trans->fs_info->chunk_mutex.first_waiter->list.prev->next 5159360019465732096
PARAM_VALUE 0 trans->fs_info->chunk_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->chunk_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->chunk_root->refs.refs.counter (-1073741824),0-s32max
PARAM_VALUE 0 trans->fs_info->commit_root_sem.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->commit_root_sem.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->dev_root->refs.refs.counter (-1073741824),0-s32max
PARAM_VALUE 0 trans->fs_info->fs_roots_radix.xa_flags 0,67108864-u32max
PARAM_VALUE 0 trans->fs_info->global_block_rsv.space_info->force_alloc 0,2
PARAM_VALUE 0 trans->fs_info->global_root_lock.dep_map->name 0-255
PARAM_VALUE 0 trans->fs_info->quota_root->refs.refs.counter (-1073741824),0-s32max
PARAM_VALUE 0 trans->fs_info->remap_root->refs.refs.counter (-1073741824),0-s32max
PARAM_VALUE 0 trans->fs_info->stripe_root->refs.refs.counter (-1073741824),0-s32max
PARAM_VALUE 0 trans->fs_info->tree_root->node->lock.first_waiter->handoff_set 0-1
PARAM_VALUE 0 trans->fs_info->tree_root->node->lock.first_waiter->type 0-1
PARAM_VALUE 0 trans->fs_info->tree_root->refs.refs.counter (-1073741824),0-s32max
PARAM_VALUE 0 trans->fs_info->uuid_root->refs.refs.counter (-1073741824),0-s32max
PARAM_VALUE 1 root 4096-ptr_max
PARAM_VALUE 2 buf 4096-ptr_max
BUF_SIZE 0 trans (-1),1-s32max
BUF_SIZE 0 trans (-1),1-s32max
BUF_SIZE 1 root (-1),2888
BUF_SIZE 1 root (-1),2888
DATA_SOURCE 0 trans $0
DATA_SOURCE 1 root r btrfs_get_fs_root
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE 0 trans->transaction->pinned_extents.inode->vfs_inode.i_bytes
LOCK2 &fs_info->cleaner_mutex
HALF_LOCKED2 &fs_info->reclaim_bgs_lock
TYPE_LOCK (struct btrfs_fs_info)->cleaner_mutex
TYPE_LOCK (struct btrfs_fs_info)->reclaim_bgs_lock