ext4_block_write_begin identifier - Linux source code next-20260811

Projects

linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

fs/ext4/ext4.h, line 4068 (as a prototype)

Defined in 1 files as a function:

fs/ext4/inode.c, line 1169 (as a function)

Referenced in 2 files:

Smatch caller information:

fs/ext4/inode.c ext4_block_page_mkwrite() -> ext4_block_write_begin()

Type	Parameter	Key	Value
PARAM_VALUE	0	handle	4096-ptr_max
PARAM_VALUE	1	folio	4096-ptr_max
PARAM_VALUE	2	pos	0
BUF_SIZE	0	handle	(-1),1-s32max
BUF_SIZE	0	handle	(-1),1-s32max
CAPPED_DATA	1	folio->mapping	1
DATA_SOURCE	0	handle	r __ext4_journal_start
DATA_SOURCE	1	folio	$1
DATA_SOURCE	4	get_block	$2

fs/ext4/inode.c ext4_da_write_begin() -> ext4_block_write_begin()

Type	Parameter	Key	Value
PARAM_VALUE	0	handle	0
PARAM_VALUE	1	folio	4096-ptr_max
PARAM_VALUE	4	get_block	8399888114700869632
DATA_SOURCE	1	folio	r write_begin_get_folio
DATA_SOURCE	2	pos	$2
DATA_SOURCE	3	len	$3 [m]
NOSPEC	2	pos
NOSPEC	3	len
RX_PATH
TASK_NOT_RUNNING
USER_DATA	1	folio->mapping->writeback_index	0-524287[c]
USER_DATA	2	pos	s64min-s64max
USER_DATA	3	len	0-s32max[c]
UNITS	2	pos	unit_byte
UNITS	3	len	unit_byte
HALF_LOCKED2		&inode->i_rwsem

fs/ext4/inode.c ext4_write_begin() -> ext4_block_write_begin()

Type	Parameter	Key	Value
PARAM_VALUE	0	handle	4096-ptr_max
PARAM_VALUE	0	handle->h_transaction->t_journal->j_superblock->s_errno	0-4294967187,4294967189-u32max
PARAM_VALUE	1	folio	4096-ptr_max
PARAM_VALUE	4	get_block	8366312295871995904
BUF_SIZE	0	handle	(-1),1-s32max
BUF_SIZE	0	handle	(-1),1-s32max
DATA_SOURCE	0	handle	r __ext4_journal_start
DATA_SOURCE	1	folio	r write_begin_get_folio
DATA_SOURCE	2	pos	$2
DATA_SOURCE	3	len	$3 [m]
NOSPEC	2	pos
NOSPEC	3	len
RX_PATH
TASK_NOT_RUNNING
USER_DATA	1	folio->mapping->writeback_index	0-524287[c]
USER_DATA	2	pos	s64min-s64max
USER_DATA	3	len	0-s32max[c]
UNITS	2	pos	unit_byte
UNITS	3	len	unit_byte
HALF_LOCKED2		&inode->i_rwsem

fs/ext4/inode.c ext4_write_begin() -> ext4_block_write_begin()

Type	Parameter	Key	Value
PARAM_VALUE	0	handle	4096-ptr_max
PARAM_VALUE	0	handle->h_transaction->t_journal->j_superblock->s_errno	0-4294967187,4294967189-u32max
PARAM_VALUE	1	folio	4096-ptr_max
PARAM_VALUE	4	get_block	4610956903071682560
BUF_SIZE	0	handle	(-1),1-s32max
BUF_SIZE	0	handle	(-1),1-s32max
DATA_SOURCE	0	handle	r __ext4_journal_start
DATA_SOURCE	1	folio	r write_begin_get_folio
DATA_SOURCE	2	pos	$2
DATA_SOURCE	3	len	$3 [m]
NOSPEC	2	pos
NOSPEC	3	len
RX_PATH
TASK_NOT_RUNNING
USER_DATA	1	folio->mapping->writeback_index	0-524287[c]
USER_DATA	2	pos	s64min-s64max
USER_DATA	3	len	0-s32max[c]
UNITS	2	pos	unit_byte
UNITS	3	len	unit_byte
HALF_LOCKED2		&inode->i_rwsem

fs/ext4/inline.c ext4_convert_inline_data_to_extent() -> ext4_block_write_begin()

Type	Parameter	Key	Value
PARAM_VALUE	0	handle	4096-ptr_max
PARAM_VALUE	0	handle->h_transaction->t_journal->j_abort_mutex.dep_map->name	0-255
PARAM_VALUE	0	handle->h_transaction->t_journal->j_abort_mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	handle->h_transaction->t_journal->j_abort_mutex.first_waiter->list.prev->prev	5159360019465732096
PARAM_VALUE	0	handle->h_transaction->t_journal->j_abort_mutex.first_waiter->task->blocked_on	0
PARAM_VALUE	0	handle->h_transaction->t_journal->j_abort_mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	handle->h_transaction->t_journal->j_list_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	handle->h_transaction->t_journal->j_revoke_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	handle->h_transaction->t_journal->j_state_lock.dep_map->name	0-255
PARAM_VALUE	0	handle->h_transaction->t_journal->j_state_lock.owner	(-1)
PARAM_VALUE	0	handle->h_transaction->t_journal->j_state_lock.owner_cpu	u32max
PARAM_VALUE	0	handle->h_transaction->t_journal->j_state_lock.raw_lock.cnts.counter	0-s32max
PARAM_VALUE	0	handle->h_transaction->t_journal->j_state_lock.raw_lock.wlocked	0
PARAM_VALUE	0	handle->h_transaction->t_journal->j_superblock->s_checksum_type	4
PARAM_VALUE	0	handle->h_transaction->t_journal->j_superblock->s_errno	0-4294967187,4294967189-u32max
PARAM_VALUE	1	folio	4096-ptr_max
PARAM_VALUE	2	pos	0
PARAM_VALUE	3	len	0-u16max
PARAM_VALUE	4	get_block	8366312295871995904
BUF_SIZE	0	handle	(-1),1-s32max
BUF_SIZE	0	handle	(-1),1-s32max
CAPPED_DATA	3	len	1
DATA_SOURCE	0	handle	r __ext4_journal_start
DATA_SOURCE	1	folio	r __filemap_get_folio
DATA_SOURCE	3	len	r ext4_get_inline_size
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&inode->i_rwsem

fs/ext4/inline.c ext4_convert_inline_data_to_extent() -> ext4_block_write_begin()

Type	Parameter	Key	Value
PARAM_VALUE	0	handle	4096-ptr_max
PARAM_VALUE	0	handle->h_transaction->t_journal->j_abort_mutex.dep_map->name	0-255
PARAM_VALUE	0	handle->h_transaction->t_journal->j_abort_mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	handle->h_transaction->t_journal->j_abort_mutex.first_waiter->list.prev->prev	5159360019465732096
PARAM_VALUE	0	handle->h_transaction->t_journal->j_abort_mutex.first_waiter->task->blocked_on	0
PARAM_VALUE	0	handle->h_transaction->t_journal->j_abort_mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	handle->h_transaction->t_journal->j_list_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	handle->h_transaction->t_journal->j_revoke_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	handle->h_transaction->t_journal->j_state_lock.dep_map->name	0-255
PARAM_VALUE	0	handle->h_transaction->t_journal->j_state_lock.owner	(-1)
PARAM_VALUE	0	handle->h_transaction->t_journal->j_state_lock.owner_cpu	u32max
PARAM_VALUE	0	handle->h_transaction->t_journal->j_state_lock.raw_lock.cnts.counter	0-s32max
PARAM_VALUE	0	handle->h_transaction->t_journal->j_state_lock.raw_lock.wlocked	0
PARAM_VALUE	0	handle->h_transaction->t_journal->j_superblock->s_checksum_type	4
PARAM_VALUE	0	handle->h_transaction->t_journal->j_superblock->s_errno	0-4294967187,4294967189-u32max
PARAM_VALUE	1	folio	4096-ptr_max
PARAM_VALUE	2	pos	0
PARAM_VALUE	3	len	0-u16max
PARAM_VALUE	4	get_block	4610956903071682560
BUF_SIZE	0	handle	(-1),1-s32max
BUF_SIZE	0	handle	(-1),1-s32max
CAPPED_DATA	3	len	1
DATA_SOURCE	0	handle	r __ext4_journal_start
DATA_SOURCE	1	folio	r __filemap_get_folio
DATA_SOURCE	3	len	r ext4_get_inline_size
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&inode->i_rwsem

fs/ext4/inline.c ext4_da_convert_inline_data_to_extent() -> ext4_block_write_begin()

Type	Parameter	Key	Value
PARAM_VALUE	0	handle	0
PARAM_VALUE	1	folio	4096-ptr_max
PARAM_VALUE	2	pos	0
PARAM_VALUE	3	len	0-u16max
PARAM_VALUE	4	get_block	8399888114700869632
DATA_SOURCE	1	folio	r __filemap_get_folio
DATA_SOURCE	3	len	r ext4_get_inline_size
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&inode->i_rwsem