Defined in 2 files as a function:
- include/linux/userfaultfd_k.h, line 207 (as a function)
- include/linux/userfaultfd_k.h, line 356 (as a function)
Referenced in 8 files:
- kernel/events/uprobes.c, line 441
- mm/huge_memory.c
- mm/hugetlb.c, line 5786
- mm/khugepaged.c, line 2599
- mm/memory.c
- mm/migrate_device.c
- mm/shmem.c, line 2503
- mm/userfaultfd.c, line 4032
Smatch caller information:
mm/huge_memory.c __do_huge_pmd_anonymous_page() -> userfaultfd_missing()
| 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 |
| PREEMPT_ADD | <- disables preempt | ||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | &pool->lock |
mm/huge_memory.c do_huge_pmd_anonymous_page() -> userfaultfd_missing()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| PREEMPT_ADD | <- disables preempt | ||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | &pool->lock |
mm/userfaultfd.c userfaultfd_unregister() -> userfaultfd_missing()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| PARAM_VALUE | 0 | vma->flags.__vma_flags | 4096-ptr_max |
| DATA_SOURCE | 0 | vma | r vma_find |
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_start | |
| LOCK2 | &mm->mmap_lock | ||
| TYPE_LOCK | (struct mm_struct)->mmap_lock |
mm/shmem.c shmem_get_folio_gfp() -> userfaultfd_missing()
| 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 |
mm/hugetlb.c hugetlb_no_page() -> userfaultfd_missing()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | &pool->lock |
mm/migrate_device.c migrate_vma_insert_huge_pmd_page() -> userfaultfd_missing()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| CAPPED_DATA | 0 | vma | 1 |
| CAPPED_DATA | 0 | vma->vm_start | 1 |
| PREEMPT_ADD | <- disables preempt | ||
| 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_policy->mode | |
| HALF_LOCKED2 | &drm->dmem->mutex |
mm/migrate_device.c migrate_vma_insert_page() -> userfaultfd_missing()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| CAPPED_DATA | 0 | vma | 1 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_end | |
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_policy->mode | |
| LOCK2 | ptl | ||
| HALF_LOCKED2 | &drm->dmem->mutex |
mm/memory.c do_anonymous_page() -> userfaultfd_missing()
| 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 |
| BIT_INFO | 0 | vma->vm_flags | 0x0,0xfffffffffffffff7 |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_pgoff | |
| LOCK2 | vmf->ptl | ||
| HALF_LOCKED2 | &mm->mmap_lock |
mm/memory.c do_anonymous_page() -> userfaultfd_missing()
| 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 |
| BIT_INFO | 0 | vma->vm_flags | 0x0,0xfffffffffffffff7 |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_pgoff | |
| LOCK2 | vmf->ptl | ||
| HALF_LOCKED2 | &mm->mmap_lock |
kernel/events/uprobes.c __uprobe_write() -> userfaultfd_missing()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| PARAM_VALUE | 0 | vma->flags.__vma_flags | 4096-ptr_max |
| CAPPED_DATA | 0 | vma->vm_end | 1 |
| CAPPED_DATA | 0 | vma->vm_start | 1 |
| DATA_SOURCE | 0 | vma | $0 |
| NOSPEC | 0 | vma->vm_pgoff | |
| NOSPEC | 0 | vma->vm_start | |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| USER_DATA | 0 | vma->shared.rb_subtree_last | 0-u64max[u] |
| USER_DATA | 0 | vma->vm_pgoff | 0-4503599627370495[c] |
| USER_DATA | 0 | vma->vm_start | 0-s32max,9223372036854775807[c] |
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_end | |
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_pgoff | |
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | &uprobe->register_rwsem |
mm/khugepaged.c collapse_file() -> userfaultfd_missing()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| PREEMPT_ADD | <- disables preempt | ||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| LOCK2 | &((&xas)->xa)->xa_lock | ||
| LOCK2 | &mapping->i_mmap_rwsem | ||
| LOCK2 | irq | ||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| TYPE_LOCK | (struct address_space)->i_mmap_rwsem |