percpu_counter_read_positive identifier - Linux source code next-20260811

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linux

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FIXME
- FIXME
  - next-20260811

Defined in 2 files as a function:

Referenced in 23 files:

Smatch caller information:

kernel/exit.c get_mm_counter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		global &system_transition_mutex

kernel/fork.c get_mm_counter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

mm/madvise.c get_mm_counter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&madv_behavior->mm->mmap_lock
HALF_LOCKED2		&mm->mmap_lock

kernel/tsacct.c get_mm_counter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING

mm/page-writeback.c wb_stat() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&pool->lock
HALF_LOCKED2		&wb->list_lock

fs/btrfs/space-info.c need_preemptive_reclaim() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
LOCK2		&space_info->lock
TYPE_LOCK		(struct btrfs_space_info)->lock

fs/btrfs/space-info.c need_preemptive_reclaim() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
LOCK2		&space_info->lock
TYPE_LOCK		(struct btrfs_space_info)->lock

fs/ext2/ialloc.c find_group_orlov() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

fs/ext2/ialloc.c find_group_orlov() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

fs/ext2/ialloc.c find_group_orlov() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

fs/quota/dquot.c dqcache_shrink_count() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
BUF_SIZE	0	fbc	208
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&m->lock

mm/backing-dev.c wb_stat() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
LOCK2		&m->lock
LOCK2		rcu_read
TYPE_LOCK		(struct seq_file)->lock

fs/proc/task_mmu.c get_mm_counter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
LOCK2		&mm->mmap_lock
TYPE_LOCK		(struct mm_struct)->mmap_lock

mm/rmap.c get_mm_counter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&anon_vma->root->rwsem
HALF_LOCKED2		&folio->private->lock

mm/util.c __vm_enough_memory() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	7602378050297823232
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&mm->mmap_lock
HALF_LOCKED2		&mm->mmap_lock
HALF_LOCKED2		&vma->anon_vma->root->rwsem
HALF_LOCKED2		global &swap_lock

fs/ext4/inode.c ext4_nonda_switch() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&mapping->invalidate_lock

fs/ext4/inode.c ext4_nonda_switch() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&mapping->invalidate_lock

net/core/dst.c dst_entries_get_fast() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		rcu_read

io_uring/wait.c current_pending_io() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max

fs/ext4/ialloc.c find_group_orlov() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

fs/ext4/ialloc.c find_group_orlov() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

fs/ext4/ialloc.c find_group_orlov() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

fs/file_table.c get_nr_files() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	6586958506563112960
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING

fs/proc/array.c get_mm_counter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
LOCK2		&m->lock
LOCK2		&task->signal->exec_update_lock
TYPE_LOCK		(struct seq_file)->lock
TYPE_LOCK		(struct signal_struct)->exec_update_lock

fs/ext4/extents_status.c ext4_es_count() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&m->lock

fs/ext4/extents_status.c ext4_es_scan() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		global &bch_register_lock

fs/ext4/extents_status.c ext4_es_scan() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		global &bch_register_lock

mm/vma.c get_mm_counter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&mm->mmap_lock
HALF_LOCKED2		&oldmm->mmap_lock

fs/xfs/xfs_iomap.c xfs_estimate_freecounter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&inode->i_rwsem

fs/xfs/libxfs/xfs_ialloc.c xfs_dialloc() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

fs/xfs/libxfs/xfs_ialloc.c xfs_estimate_freecounter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING

fs/xfs/libxfs/xfs_ialloc.c xfs_ialloc_ag_alloc() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

fs/jbd2/journal.c jbd2_journal_shrink_count() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&m->lock

fs/jbd2/journal.c jbd2_journal_shrink_scan() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		global &bch_register_lock

fs/jbd2/journal.c jbd2_journal_shrink_scan() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		global &bch_register_lock

fs/xfs/xfs_zone_gc.c xfs_estimate_freecounter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&m->lock
HALF_LOCKED2		&zi->zi_open_zones_lock

mm/memory.c get_mm_counter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&mapping->i_mmap_rwsem

kernel/sched/fair.c get_mm_counter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING

lib/flex_proportions.c fprop_fraction_percpu() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&(&mapping->i_pages)->xa_lock
HALF_LOCKED2		flags

lib/flex_proportions.c fprop_fraction_percpu() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	72,4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&(&mapping->i_pages)->xa_lock
HALF_LOCKED2		flags

net/core/sock.c sk_sockets_allocated_read_positive() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&kcm->tx_mutex
HALF_LOCKED2		&list->lock
HALF_LOCKED2		&psock->work_mutex
HALF_LOCKED2		&sk->sk_lock.slock
HALF_LOCKED2		sk

fs/ext2/balloc.c ext2_has_free_blocks() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&ei->truncate_mutex

drivers/md/dm-crypt.c crypt_alloc_buffer() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&cc->bio_alloc_lock

drivers/md/dm-crypt.c crypt_page_alloc() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

kernel/sys.c get_mm_counter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

fs/btrfs/super.c btrfs_nr_cached_objects() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&sb->s_umount

fs/xfs/xfs_ioctl.c xfs_estimate_freecounter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value

fs/xfs/xfs_ioctl.c xfs_ioctl_fs_counts() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max

fs/xfs/xfs_ioctl.c xfs_ioctl_fs_counts() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max

fs/ext4/balloc.c ext4_has_free_clusters() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
BUF_SIZE	0	fbc	104
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING

fs/ext4/balloc.c ext4_has_free_clusters() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
BUF_SIZE	0	fbc	104
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING

fs/exec.c get_mm_counter() -> percpu_counter_read_positive()

Type	Parameter	Key	Value
PARAM_VALUE	0	fbc	4096-ptr_max
PREEMPT_ADD
HALF_LOCKED2		&tsk->signal->exec_update_lock