Defined in 1 files as a function:
Referenced in 1 files:
Smatch caller information:
mm/memory.c alloc_anon_folio() -> folio_prealloc()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | vma | 4096-ptr_max |
| PARAM_VALUE | 1 | vma->anon_vma_chain.next | 4096-ptr_max |
| PARAM_VALUE | 1 | vma->vm_ops | 0 |
| PARAM_VALUE | 2 | addr | 0,4096-u64max |
| PARAM_VALUE | 3 | need_zero | 1 |
| BUF_SIZE | 1 | vma | (-1),4,24,64,168-s32max |
| BUF_SIZE | 1 | vma | (-1),4,24,64,168-s32max |
| CAPPED_DATA | 2 | addr | 1 |
| CAPPED_DATA | 2 | addr | 1 |
| NOSPEC | 2 | addr | |
| NOSPEC | 2 | addr | |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| USER_DATA | 2 | addr | 0,4096-u64max[c] |
| NO_OVERFLOW_SIMPLE | 1 | vma->vm_pgoff | |
| UNITS | 0 | src_mm | unit_byte |
| UNITS | 2 | addr | unit_byte |
| HALF_LOCKED2 | &mm->mmap_lock |
mm/memory.c copy_pte_range() -> folio_prealloc()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | src_mm | 4096-ptr_max |
| PARAM_VALUE | 1 | vma | 4096-ptr_max |
| PARAM_VALUE | 1 | vma->anon_name | 0,4096-ptr_max |
| PARAM_VALUE | 1 | vma->flags.__vma_flags | 4096-ptr_max |
| PARAM_VALUE | 1 | vma->pfnmap_track_ctx | 0,4096-ptr_max |
| PARAM_VALUE | 1 | vma->vm_file->f_inode->i_wb->dwork.wq->dfl_pwq | 0-s64max |
| PARAM_VALUE | 1 | vma->vm_file->f_inode->i_wb->dwork.wq->saved_max_active | s32min-s32max |
| PARAM_VALUE | 1 | vma->vm_file->f_inode->i_wb->dwork.wq->saved_min_active | s32min-s32max |
| PARAM_VALUE | 1 | vma->vm_mm | 4096-ptr_max |
| PARAM_VALUE | 1 | vma->vm_mm->iommu_mm->pasid | 0-4294967295 |
| PARAM_VALUE | 1 | vma->vm_mm->notifier_subscriptions->has_itree | 0-1 |
| PARAM_VALUE | 1 | vma->vm_ops->may_split | 0,4096-ptr_max |
| PARAM_VALUE | 1 | vma->vm_ops->open | 0,4096-ptr_max |
| PARAM_VALUE | 3 | need_zero | 0 |
| CAPPED_DATA | 1 | vma->vm_policy | 1 |
| DATA_SOURCE | 1 | vma | $1 |
| DATA_SOURCE | 2 | addr | $4 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| UNITS | 0 | src_mm | unit_byte |
| UNITS | 2 | addr | unit_byte |
| LOCK2 | &mm->mmap_lock | ||
| LOCK2 | &oldmm->mmap_lock | ||
| TYPE_LOCK | (struct mm_struct)->mmap_lock |
mm/memory.c do_cow_fault() -> folio_prealloc()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | vma | 4096-ptr_max |
| PARAM_VALUE | 1 | vma->vm_ops | 4096-ptr_max |
| PARAM_VALUE | 2 | addr | 0,4096-u64max |
| PARAM_VALUE | 3 | need_zero | 0 |
| BUF_SIZE | 1 | vma | (-1),4,24,64,168-s32max |
| BUF_SIZE | 1 | vma | (-1),4,24,64,168-s32max |
| CAPPED_DATA | 2 | addr | 1 |
| CAPPED_DATA | 2 | addr | 1 |
| NOSPEC | 2 | addr | |
| NOSPEC | 2 | addr | |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| USER_DATA | 2 | addr | 0,4096-u64max[c] |
| NO_OVERFLOW_SIMPLE | 1 | vma->vm_pgoff | |
| UNITS | 0 | src_mm | unit_byte |
| UNITS | 2 | addr | unit_byte |
| HALF_LOCKED2 | &mm->mmap_lock |
mm/memory.c wp_page_copy() -> folio_prealloc()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 1 | vma | 4096-ptr_max |
| PARAM_VALUE | 2 | addr | 0,4096-u64max |
| BUF_SIZE | 1 | vma | (-1),1-s32max |
| BUF_SIZE | 1 | vma | (-1),1-s32max |
| CAPPED_DATA | 2 | addr | 1 |
| CAPPED_DATA | 2 | addr | 1 |
| DATA_SOURCE | 3 | need_zero | r is_zero_pfn |
| NOSPEC | 2 | addr | |
| NOSPEC | 2 | addr | |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| USER_DATA | 1 | vma->swap_readahead_info.counter | 0-s64max[c] |
| USER_DATA | 2 | addr | 0,4096-u64max[c] |
| NO_OVERFLOW_SIMPLE | 1 | vma->vm_pgoff | |
| UNITS | 0 | src_mm | unit_byte |
| UNITS | 2 | addr | unit_byte |
| HALF_LOCKED2 | &mm->mmap_lock |