f2fs_available_free_memory identifier - Linux source code next-20260811

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linux

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FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

fs/f2fs/f2fs.h, line 3972 (as a prototype)

Defined in 1 files as a function:

fs/f2fs/node.c, line 51 (as a function)

Referenced in 4 files:

Smatch caller information:

fs/f2fs/segment.c f2fs_balance_fs_bg() -> f2fs_available_free_memory()

Type	Parameter	Key	Value
PARAM_VALUE	0	sbi	4096-ptr_max
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->type	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	1	type	4
BUF_SIZE	0	sbi	1-s32max
BUF_SIZE	0	sbi	1-s32max
DATA_SOURCE	0	sbi	$0
RX_PATH
TASK_NOT_RUNNING
UNITS	0	sbi	unit_byte
HALF_LOCKED2	0	&sbi->cp_rwsem.internal_rwsem

fs/f2fs/segment.c f2fs_balance_fs_bg() -> f2fs_available_free_memory()

Type	Parameter	Key	Value
PARAM_VALUE	0	sbi	4096-ptr_max
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->type	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	1	type	5
BUF_SIZE	0	sbi	1-s32max
BUF_SIZE	0	sbi	1-s32max
DATA_SOURCE	0	sbi	$0
RX_PATH
TASK_NOT_RUNNING
UNITS	0	sbi	unit_byte
HALF_LOCKED2	0	&sbi->cp_rwsem.internal_rwsem

fs/f2fs/segment.c f2fs_balance_fs_bg() -> f2fs_available_free_memory()

Type	Parameter	Key	Value
PARAM_VALUE	0	sbi	4096-ptr_max
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->type	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	1	type	1
BUF_SIZE	0	sbi	1-s32max
BUF_SIZE	0	sbi	1-s32max
DATA_SOURCE	0	sbi	$0
RX_PATH
TASK_NOT_RUNNING
UNITS	0	sbi	unit_byte
HALF_LOCKED2	0	&sbi->cp_rwsem.internal_rwsem

fs/f2fs/segment.c f2fs_balance_fs_bg() -> f2fs_available_free_memory()

Type	Parameter	Key	Value
PARAM_VALUE	0	sbi	4096-ptr_max
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->type	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	1	type	0
BUF_SIZE	0	sbi	1-s32max
BUF_SIZE	0	sbi	1-s32max
DATA_SOURCE	0	sbi	$0
RX_PATH
TASK_NOT_RUNNING
UNITS	0	sbi	unit_byte
HALF_LOCKED2	0	&sbi->cp_rwsem.internal_rwsem

fs/f2fs/segment.c f2fs_balance_fs_bg() -> f2fs_available_free_memory()

Type	Parameter	Key	Value
PARAM_VALUE	0	sbi	4096-ptr_max
PARAM_VALUE	0	sbi->alloc_valid_block_count.lock.dep_map->name	0-255
PARAM_VALUE	0	sbi->alloc_valid_block_count.lock.owner	(-1)
PARAM_VALUE	0	sbi->alloc_valid_block_count.lock.owner_cpu	u32max
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->error_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->iostat_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	sbi->nm_info	4096-ptr_max
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->raw_super->feature	0,2-u32max
PARAM_VALUE	0	sbi->rf_node_block_count.lock.dep_map->name	0-255
PARAM_VALUE	0	sbi->rf_node_block_count.lock.owner	(-1)
PARAM_VALUE	0	sbi->rf_node_block_count.lock.owner_cpu	u32max
PARAM_VALUE	0	sbi->s_error_work.entry.next->prev	4096-ptr_max
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->type	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	*sbi->page_eio_cnt	s32min-s32max
PARAM_VALUE	1	type	1
BUF_SIZE	0	sbi	1-s32max
BUF_SIZE	0	sbi	1-s32max
DATA_SOURCE	0	sbi	$0
RX_PATH
TASK_NOT_RUNNING
UNITS	0	sbi	unit_byte
HALF_LOCKED2	0	&sbi->cp_rwsem.internal_rwsem

fs/f2fs/segment.c f2fs_balance_fs_bg() -> f2fs_available_free_memory()

Type	Parameter	Key	Value
PARAM_VALUE	0	sbi	4096-ptr_max
PARAM_VALUE	0	sbi->alloc_valid_block_count.lock.dep_map->name	0-255
PARAM_VALUE	0	sbi->alloc_valid_block_count.lock.owner	(-1)
PARAM_VALUE	0	sbi->alloc_valid_block_count.lock.owner_cpu	u32max
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->error_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->iostat_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	sbi->nm_info	4096-ptr_max
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->raw_super->feature	0,2-u32max
PARAM_VALUE	0	sbi->rf_node_block_count.lock.dep_map->name	0-255
PARAM_VALUE	0	sbi->rf_node_block_count.lock.owner	(-1)
PARAM_VALUE	0	sbi->rf_node_block_count.lock.owner_cpu	u32max
PARAM_VALUE	0	sbi->s_error_work.entry.next->prev	4096-ptr_max
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->type	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	*sbi->page_eio_cnt	s32min-s32max
PARAM_VALUE	1	type	3
BUF_SIZE	0	sbi	1-s32max
BUF_SIZE	0	sbi	1-s32max
DATA_SOURCE	0	sbi	$0
RX_PATH
TASK_NOT_RUNNING
UNITS	0	sbi	unit_byte
HALF_LOCKED2	0	&sbi->cp_rwsem.internal_rwsem

fs/f2fs/segment.c issue_discard_thread() -> f2fs_available_free_memory()

Type	Parameter	Key	Value
PARAM_VALUE	0	sbi	4096-ptr_max
PARAM_VALUE	0	sbi->gc_mode	0-3,5-u32max
PARAM_VALUE	0	sbi->meta_inode->i_sb->s_cop->inode_info_offs	1632,1720,2632,2648
PARAM_VALUE	0	sbi->node_inode->i_sb->s_cop->inode_info_offs	1632,1720,2632,2648
PARAM_VALUE	1	type	6
BUF_SIZE	0	sbi	128
BUF_SIZE	0	sbi	128
DATA_SOURCE	0	sbi	$0
TASK_NOT_RUNNING

fs/f2fs/data.c __f2fs_write_data_pages() -> f2fs_available_free_memory()

Type	Parameter	Key	Value
PARAM_VALUE	0	sbi	4096-ptr_max
PARAM_VALUE	0	sbi->sb	4096-ptr_max
PARAM_VALUE	0	sbi->sb->s_bdi	4096-ptr_max
PARAM_VALUE	1	type	2
BUF_SIZE	0	sbi	1-s32max
BUF_SIZE	0	sbi	1-s32max
RX_PATH
TASK_NOT_RUNNING
UNITS	0	sbi	unit_byte
HALF_LOCKED2		&mapping->invalidate_lock

fs/f2fs/node.c __f2fs_build_free_nids() -> f2fs_available_free_memory()

Type	Parameter	Key	Value
PARAM_VALUE	0	sbi	4096-ptr_max
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_global_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->io_order_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->nm_info->nid_cnt	4096-ptr_max
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_change.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->node_write.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->quota_sem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb->s_umount.first_waiter->type	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->sb_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	*sbi->next_victim_seg	0-4294967295
PARAM_VALUE	1	type	0
BUF_SIZE	0	sbi	(-1),1-s32max
BUF_SIZE	0	sbi	(-1),1-s32max
BUF_SIZE	0	sbi->nm_info	(-1),992
DATA_SOURCE	0	sbi	$0
RX_PATH
TASK_NOT_RUNNING
UNITS	0	sbi	unit_byte
HALF_LOCKED2	0	&sbi->gc_lock.internal_rwsem

fs/f2fs/node.c f2fs_alloc_nid_failed() -> f2fs_available_free_memory()

Type	Parameter	Key	Value
PARAM_VALUE	0	sbi	4096-ptr_max
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->cp_rwsem.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->gc_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->nm_info	4096-ptr_max
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	sbi->nm_info->nat_tree_lock.internal_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	sbi->nm_info->nid_list_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	*sbi->page_eio_cnt	s32min-s32max
PARAM_VALUE	1	type	0
BUF_SIZE	0	sbi	1-s32max
BUF_SIZE	0	sbi	1-s32max
DATA_SOURCE	0	sbi	$0
PREEMPT_ADD			<- disables preempt
RX_PATH
TASK_NOT_RUNNING
UNITS	0	sbi	unit_byte
LOCK2		&nm_i->nid_list_lock
TYPE_LOCK		(struct f2fs_nm_info)->nid_list_lock

fs/f2fs/compress.c f2fs_cache_compressed_page() -> f2fs_available_free_memory()

Type	Parameter	Key	Value
PARAM_VALUE	0	sbi	4096-ptr_max
PARAM_VALUE	1	type	7
DATA_SOURCE	0	sbi	$0
RX_PATH
TASK_NOT_RUNNING
UNITS	0	sbi	unit_byte
HALF_LOCKED2		&pool->lock