Defined in 2 files as a function:
- include/linux/userfaultfd_k.h, line 262 (as a function)
- include/linux/userfaultfd_k.h, line 405 (as a function)
Referenced in 6 files:
- mm/khugepaged.c
- mm/madvise.c, line 1600
- mm/memory.c
- mm/mremap.c, line 1715
- mm/rmap.c
- mm/shmem.c, line 2051
Smatch caller information:
mm/madvise.c is_vma_lock_sufficient() -> userfaultfd_armed()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| CAPPED_DATA | 0 | vma->vm_mm | 1 |
| CAPPED_DATA | 0 | vma->vm_start | 1 |
| DATA_SOURCE | 0 | vma | $0 |
| RX_PATH | |||
| TASK_NOT_RUNNING |
mm/rmap.c try_to_migrate_one() -> userfaultfd_armed()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| DATA_SOURCE | 0 | vma | $1 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_start | |
| HALF_LOCKED2 | &anon_vma->root->rwsem | ||
| HALF_LOCKED2 | &folio->private->lock | ||
| HALF_LOCKED2 | &resv_map->rw_sema | ||
| HALF_LOCKED2 | 0 | &vma->vm_private_data->rw_sema |
mm/rmap.c try_to_unmap_one() -> userfaultfd_armed()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| DATA_SOURCE | 0 | vma | $1 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_start | |
| HALF_LOCKED2 | &anon_vma->root->rwsem | ||
| HALF_LOCKED2 | &folio->private->lock |
mm/shmem.c shmem_swap_alloc_folio() -> userfaultfd_armed()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_end | |
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_pgoff | |
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_start | |
| HALF_LOCKED2 | &inode->i_rwsem |
mm/mremap.c vma_multi_allowed() -> userfaultfd_armed()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| DATA_SOURCE | 0 | vma | $0 |
| LOCK2 | &mm->mmap_lock | ||
| TYPE_LOCK | (struct mm_struct)->mmap_lock |
mm/memory.c alloc_anon_folio() -> userfaultfd_armed()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| BUF_SIZE | 0 | vma | (-1),4,24,64,168-s32max |
| BUF_SIZE | 0 | vma | (-1),4,24,64,168-s32max |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_pgoff | |
| HALF_LOCKED2 | &mm->mmap_lock |
mm/memory.c finish_fault() -> userfaultfd_armed()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| BUF_SIZE | 0 | vma | (-1),4,24,64,168-s32max |
| BUF_SIZE | 0 | vma | (-1),4,24,64,168-s32max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_end | |
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_pgoff | |
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_start |
mm/memory.c thp_swapin_suitable_orders() -> userfaultfd_armed()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| BUF_SIZE | 0 | vma | (-1),1-s32max |
| BUF_SIZE | 0 | vma | (-1),1-s32max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &mm->mmap_lock |
mm/khugepaged.c collapse_max_ptes_none() -> userfaultfd_armed()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| DATA_SOURCE | 0 | vma | $1 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | pte_ptl | ||
| HALF_LOCKED2 | 0 | &vma->anon_vma->root->rwsem |
mm/khugepaged.c try_collapse_pte_mapped_thp() -> userfaultfd_armed()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| DATA_SOURCE | 0 | vma | r vma_lookup |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | &mm->mmap_lock |