Defined in 1 files as a prototype:
Defined in 2 files as a function:
Referenced in 2 files:
Smatch caller information:
mm/huge_memory.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| HALF_LOCKED2 | &split_debug_mutex |
drivers/block/brd.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | rcu_read | ||
| HALF_LOCKED2 | &bio->bi_bdev->bd_queue->queue_lock |
mm/memory_hotplug.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | &dev->mutex | ||
| LOCK2 | global &pcp_batch_high_lock | ||
| HALF_LOCKED2 | &device->physical_node_lock | ||
| HALF_LOCKED2 | &of->mutex | ||
| HALF_LOCKED2 | global &device_hotplug_lock | ||
| TYPE_LOCK | (struct device)->mutex |
mm/hugetlb.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | global &hugetlb_lock | ||
| LOCK2 | irq | ||
| HALF_LOCKED2 | global &mf_mutex | ||
| HALF_LOCKED2 | global &pcp_batch_high_lock |
mm/ksm.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | global &ksm_thread_mutex | ||
| HALF_LOCKED2 | &of->mutex |
mm/filemap.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | rcu_read |
mm/compaction.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | page | unit_page |
| HALF_LOCKED2 | &lruvec->lru_lock | ||
| HALF_LOCKED2 | flags | ||
| HALF_LOCKED2 | rcu_read |
mm/migrate_device.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | page | unit_page |
mm/vmscan.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | &lruvec->lru_lock | ||
| LOCK2 | irq | ||
| LOCK2 | rcu_read | ||
| TYPE_LOCK | (struct lruvec)->lru_lock |
mm/truncate.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| HALF_LOCKED2 | &inode->i_rwsem |
mm/memory.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| HALF_LOCKED2 | &mm->mmap_lock |
mm/memory-failure.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | global &mf_mutex | ||
| HALF_LOCKED2 | &attr->mutex | ||
| HALF_LOCKED2 | global &pcp_batch_high_lock |
mm/gup.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 1 | v | unit_page |
| LOCK2 | flags | ||
| HALF_LOCKED2 | rcu_read |
mm/damon/ops-common.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| HALF_LOCKED2 | &ctx->walk_control_lock |
mm/migrate.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | page | unit_page |
mm/khugepaged.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | rcu_read | ||
| HALF_LOCKED2 | &mm->mmap_lock |
mm/page_idle.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | &of->mutex | ||
| HALF_LOCKED2 | &of->prealloc_mutex | ||
| HALF_LOCKED2 | &pool->lock | ||
| TYPE_LOCK | (struct kernfs_open_file)->mutex |
mm/swap_state.c page_ref_add_unless_zero() -> __page_ref_mod_unless()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | page | 4096-ptr_max |
| PARAM_VALUE | 0 | page->_refcount.counter | 0-s32max |
| PARAM_VALUE | 1 | v | 1 |
| DATA_SOURCE | 0 | page | $0 |
| DATA_SOURCE | 1 | v | $1 |
| DATA_SOURCE | 2 | u | r atomic_add_unless |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| HALF_LOCKED2 | &ctx->map_changing_lock | ||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | rcu_read |