ext4_double_down_write_data_sem identifier - Linux source code next-20260811

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linux

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FIXME
- FIXME
  - next-20260811

Documented in 1 files:

fs/ext4/move_extent.c, line 25

Defined in 1 files as a prototype:

fs/ext4/ext4.h, line 3963 (as a prototype)

Defined in 1 files as a function:

fs/ext4/move_extent.c, line 33 (as a function)

Referenced in 2 files:

Smatch caller information:

fs/ext4/move_extent.c mext_move_extent() -> ext4_double_down_write_data_sem()

Type	Parameter	Key	Value
PARAM_VALUE	0	first	4096-ptr_max
PARAM_VALUE	0	first->i_sb	4096-ptr_max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_add_error_count	s32min-s32max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_addr_per_block_bits	s32min-s32max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_awu_max	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_awu_min	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_bdev_wb_err	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_blockfile_groups	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_cluster_bits	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_cluster_ratio	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_csum_seed	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_def_hash_version	s32min-s32max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_def_mount_opt	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_def_mount_opt2	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_desc_per_block_bits	s32min-s32max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_extent_max_zeroout_kb	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_fc_bytes	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_fc_debug_max_replay	s32min-s32max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_fc_ineligible_tid	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_first_error_code	s32min-s32max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_first_error_ino	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_first_error_line	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_first_ino	s32min-s32max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_flex_groups_allocated	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_group_info_size	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_groups_count	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_hash_unsigned	s32min-s32max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_inode_goal	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_inode_readahead_blks	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_inode_size	s32min-s32max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_jquota_fmt	s32min-s32max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_last_error_code	s32min-s32max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_last_error_ino	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_last_error_line	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_li_wait_mult	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_log_groups_per_flex	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_max_batch_time	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_max_dir_size_kb	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_max_folio_order	0-u16max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mb_best_avail_max_trim_order	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mb_group_prealloc	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mb_max_linear_groups	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mb_max_to_scan	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mb_min_to_scan	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mb_nr_global_goals	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mb_order2_reqs	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mb_prefetch	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mb_prefetch_limit	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mb_stats	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mb_stream_request	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_min_batch_time	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_min_folio_order	0-u16max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mount_opt	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mount_opt2	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_mount_state	0-u16max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_pad	0-u16max
PARAM_VALUE	0	first->i_sb->s_fs_info->s_sb_update_kb	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_sb_update_sec	0-4294967295
PARAM_VALUE	0	first->i_sb->s_fs_info->s_want_extra_isize	0-4294967295
PARAM_VALUE	1	second	4096-ptr_max
NOCHECK_CALL

fs/ext4/move_extent.c mext_move_extent() -> ext4_double_down_write_data_sem()

Type	Parameter	Key	Value
PARAM_VALUE	0	first	4096-ptr_max
PARAM_VALUE	0	first->i_sb	4096-ptr_max
PARAM_VALUE	1	second	4096-ptr_max
CAPPED_DATA	0	first	1
CAPPED_DATA	1	second	1
NOCHECK_CALL

fs/ext4/ioctl.c swap_inode_boot_loader() -> ext4_double_down_write_data_sem()

Type	Parameter	Key	Value
PARAM_VALUE	0	first	4096-ptr_max
PARAM_VALUE	0	first->i_mapping	4096-ptr_max
PARAM_VALUE	0	first->i_mapping->invalidate_lock.dep_map->name	0-255
PARAM_VALUE	0	first->i_mapping->invalidate_lock.first_waiter->list.next	2624917664208203776
PARAM_VALUE	0	first->i_mapping->invalidate_lock.first_waiter->list.prev	2624917664208203776
PARAM_VALUE	0	first->i_mapping->invalidate_lock.first_waiter->type	0-1
PARAM_VALUE	0	first->i_mapping->invalidate_lock.osq.tail.counter	0-s32max
PARAM_VALUE	0	first->i_mapping->nrpages	0-1
PARAM_VALUE	0	first->i_nlink	1
PARAM_VALUE	0	first->i_rwsem.dep_map->name	0-255
PARAM_VALUE	0	first->i_rwsem.first_waiter->list.next	2624917664208203776
PARAM_VALUE	0	first->i_rwsem.first_waiter->list.prev	2624917664208203776
PARAM_VALUE	0	first->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	first->i_rwsem.osq.tail.counter	0-s32max
PARAM_VALUE	0	first->i_sb	4096-ptr_max
PARAM_VALUE	1	second	4096-ptr_max
PARAM_VALUE	1	second->i_mapping->nrpages	0-1
PARAM_VALUE	1	second->i_rwsem.dep_map->name	0-255
PARAM_VALUE	1	second->i_rwsem.first_waiter->list.next	2624917664208203776
PARAM_VALUE	1	second->i_rwsem.first_waiter->list.prev	2624917664208203776
PARAM_VALUE	1	second->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	1	second->i_rwsem.osq.tail.counter	0-s32max
PARAM_VALUE	1	second->i_sb	4096-ptr_max
CAPPED_DATA	0	first->i_data.i_pages.xa_head	1
CAPPED_DATA	1	second->i_data.i_pages.xa_head	1
DATA_SOURCE	0	first	$2
DATA_SOURCE	1	second	r __ext4_iget
CAPABLE	0	21
BIT_INFO	0	first->i_flags	0x0,0xffffbef3
NOCHECK_CALL
LOCK2	0	&first->i_mapping->invalidate_lock
TYPE_LOCK		(struct address_space)->invalidate_lock