btrfs_force_cow_block identifier - Linux source code next-20260811

Projects

linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

fs/btrfs/ctree.h, line 564 (as a prototype)

Defined in 1 files as a function:

fs/btrfs/ctree.c, line 465 (as a function)

Referenced in 2 files:

Smatch caller information:

fs/btrfs/defrag.c btrfs_realloc_node() -> btrfs_force_cow_block()

Type	Parameter	Key	Value
PARAM_VALUE	0	trans	4096-ptr_max
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->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	1	root	4096-ptr_max
PARAM_VALUE	1	root->fs_info->btree_inode->i_mapping->host->i_sb->s_export_op->encode_fh	0,2,1398972869330624512,1616549510479982592,2037984473558433792,2776440803454029824,3228746867770966016,3502492669594062848,3526768263295340544,3559173554394271744,5000850239487131648,5583386343686406144,5817357685191483392-s64max
PARAM_VALUE	1	root->fs_info->btree_inode->i_mapping->host->i_sb->s_export_op->fh_to_parent	0,4672,5297,4573560380487,148606482432692224,436469935444291584,467281172929331200,529780027764285440,1092893949038768128,1556959531105513472,1608953577475584000,1649536479961075712,2404761408063094784,2970908329832960000-s64max
PARAM_VALUE	1	root->fs_info->btree_inode->i_mapping->host->i_sb->s_export_op->get_parent	0,8931,264940071972966400,291591359766798336,565128213429456896,893189740598853632,1241177127089143808,1474696885321834496,1812477326828269568,1893665921928286208,2210088671756947456,2437012291923775488,2483979068402987008-s64max
PARAM_VALUE	1	root->node->lock.dep_map->name	0-255
PARAM_VALUE	1	root->node->lock.first_waiter->handoff_set	0-1
PARAM_VALUE	1	root->node->lock.first_waiter->list.next	2212933610777083904
PARAM_VALUE	1	root->node->lock.first_waiter->list.prev	2212933610777083904
PARAM_VALUE	1	root->node->lock.first_waiter->type	0-1
PARAM_VALUE	2	buf	4096-ptr_max
PARAM_VALUE	2	buf->lock.first_waiter->list.next	2624917664208203776
PARAM_VALUE	2	buf->lock.first_waiter->type	0-1
PARAM_VALUE	2	buf->lock.osq.tail.counter	0-s32max
PARAM_VALUE	3	parent	4096-ptr_max
PARAM_VALUE	4	parent_slot	1-s32max
PARAM_VALUE	5	cow_ret	8631598710037012480
PARAM_VALUE	5	*cow_ret	4096-ptr_max
PARAM_VALUE	7	empty_size	0-u32max
PARAM_VALUE	8	nest	1
BUF_SIZE	2	buf	(-1)-s32max
BUF_SIZE	2	buf	(-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	4	parent_slot	1
CAPPED_DATA	7	empty_size	1
DATA_SOURCE	0	trans	$0
DATA_SOURCE	1	root	$1
DATA_SOURCE	2	buf	r btrfs_read_node_slot
DATA_SOURCE	3	parent	$2
CAPABLE	0	21
UNITS	6	search_start	unit_byte
LOCK2	2	&buf->lock
TYPE_LOCK		(struct extent_buffer)->lock

fs/btrfs/ctree.c btrfs_cow_block() -> btrfs_force_cow_block()

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->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	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_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->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	4096-ptr_max
PARAM_VALUE	1	root->fs_info->btree_inode->i_mapping->host->i_sb->s_export_op->encode_fh	0,2,1398972869330624512,1616549510479982592,2037984473558433792,2776440803454029824,3228746867770966016,3502492669594062848,3526768263295340544,3559173554394271744,5000850239487131648,5583386343686406144,5817357685191483392-s64max
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	0,4672,5297,4573560380487,148606482432692224,436469935444291584,467281172929331200,529780027764285440,1092893949038768128,1556959531105513472,1608953577475584000,1649536479961075712,2404761408063094784,2970908329832960000-s64max
PARAM_VALUE	1	root->fs_info->btree_inode->i_mapping->host->i_sb->s_export_op->get_parent	0,8931,264940071972966400,291591359766798336,565128213429456896,893189740598853632,1241177127089143808,1474696885321834496,1812477326828269568,1893665921928286208,2210088671756947456,2437012291923775488,2483979068402987008-s64max
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->sb->s_cop->inode_info_offs	1632,1720,1808,2632,2648
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	2	buf	4096-ptr_max
PARAM_VALUE	2	buf->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	2	buf->lock.first_waiter->handoff_set	0-1
PARAM_VALUE	2	buf->lock.first_waiter->list.next	2624917664208203776
PARAM_VALUE	2	buf->lock.first_waiter->type	0-1
PARAM_VALUE	3	parent	0,4096-ptr_max
PARAM_VALUE	3	parent->fs_info->btree_inode->i_mapping->host->i_sb->s_export_op->encode_fh	0,2,1398972869330624512,1616549510479982592,2037984473558433792,2776440803454029824,3228746867770966016,3502492669594062848,3526768263295340544,3559173554394271744,5000850239487131648,5583386343686406144,5817357685191483392-s64max
PARAM_VALUE	3	parent->fs_info->btree_inode->i_mapping->host->i_sb->s_export_op->fh_to_parent	0,5297,148606482432692224,436469935444291584,467281172929331200,529780027764285440,1092893949038768128,1556959531105513472,1608953577475584000,1649536479961075712,2404761408063094784,2970908329832960000,3511613614414655488-s64max
PARAM_VALUE	3	parent->fs_info->btree_inode->i_mapping->host->i_sb->s_export_op->get_parent	0,8931,264940071972966400,291591359766798336,565128213429456896,893189740598853632,1241177127089143808,1474696885321834496,1812477326828269568,1893665921928286208,2210088671756947456,2437012291923775488,2483979068402987008-s64max
PARAM_VALUE	3	parent->lock.first_waiter->handoff_set	0-1
PARAM_VALUE	3	parent->lock.first_waiter->type	0-1
PARAM_VALUE	5	cow_ret	4096-ptr_max
PARAM_VALUE	5	*cow_ret	4096-u64max
PARAM_VALUE	6	search_start	0,1073741824-u64max
PARAM_VALUE	7	empty_size	0
PARAM_VALUE	8	nest	1,4-5
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
BUF_SIZE	2	buf	(-1)-s32max
BUF_SIZE	2	buf	(-1)-s32max
CAPPED_DATA	0	trans->transaction	1
CAPPED_DATA	0	trans->transid	1
CAPPED_DATA	3	parent	1
DATA_SOURCE	0	trans	$0
DATA_SOURCE	1	root	$1
DATA_SOURCE	2	buf	$2
DATA_SOURCE	3	parent	$3
DATA_SOURCE	4	parent_slot	$4
DATA_SOURCE	5	cow_ret	$5
DATA_SOURCE	8	nest	$6
BIT_INFO	6	search_start	0x0,0xffffffffc0000000
BIT_INFO	6	search_start	0x0,0xffffffffc0000000
HARD_MAX	8	nest	5
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
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->vfs_inode.i_bytes
NO_OVERFLOW_SIMPLE	1	root->dirty_log_pages.inode->vfs_inode.i_bytes
NO_OVERFLOW_SIMPLE	2	buf->len
NO_OVERFLOW_SIMPLE	2	buf->start
NO_OVERFLOW_SIMPLE	3	parent->len
NO_OVERFLOW_SIMPLE	3	parent->start
USER_PTR	0	trans->pending_snapshot->inherit
HALF_LOCKED2		&fs_info->cleaner_mutex
HALF_LOCKED2	2	&buf->lock