Defined in 2 files as a function:
- include/linux/userfaultfd_k.h, line 244 (as a function)
- include/linux/userfaultfd_k.h, line 387 (as a function)
Referenced in 3 files:
Smatch caller information:
mm/huge_memory.c can_change_pmd_writable() -> userfaultfd_huge_pmd_wp()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| DATA_SOURCE | 0 | vma | $0 |
| DATA_SOURCE | 1 | pmd | $2 |
| BIT_INFO | 0 | vma->vm_flags | 0x2,0xffffffffffffffff |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| USER_DATA | 0 | vma->vm_end | 1-u64max[c] |
| USER_DATA | 0 | vma->vm_start | 1-u64max[c] |
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_file->f_mapping->host->i_size | |
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_start | |
| HALF_LOCKED2 | &mm->mmap_lock |
mm/memory.c wp_huge_pmd() -> userfaultfd_huge_pmd_wp()
| 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/gup.c can_follow_write_pmd() -> userfaultfd_huge_pmd_wp()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | vma | 4096-ptr_max |
| DATA_SOURCE | 0 | vma | $2 |
| DATA_SOURCE | 1 | pmd | $0 |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NO_OVERFLOW_SIMPLE | 0 | vma->vm_file->f_mapping->host->i_size | |
| HALF_LOCKED2 | &mm->mmap_lock |