Defined in 4 files as a function:
- arch/arm64/include/asm/pgtable.h, line 358 (as a function)
- arch/riscv/include/asm/pgtable.h, line 426 (as a function)
- arch/x86/include/asm/pgtable.h, line 424 (as a function)
- include/asm-generic/pgtable_uffd.h, line 42 (as a function)
Referenced in 6 files:
- arch/arm64/include/asm/pgtable.h, line 599
- arch/riscv/include/asm/pgtable.h, line 921
- include/asm-generic/hugetlb.h, line 50
- mm/memory.c
- mm/mprotect.c, line 297
- mm/mremap.c, line 308
Smatch caller information:
mm/mprotect.c change_present_ptes() -> pte_clear_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pte | r pte_modify |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| LOCK2 | ptl | ||
| HALF_LOCKED2 | &mm->mmap_lock |
mm/hugetlb.c huge_pte_clear_uffd() -> pte_clear_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pte | $0 |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &mapping->i_mmap_rwsem | ||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | &oldmm->mmap_lock | ||
| HALF_LOCKED2 | &vma->vm_file->f_mapping->i_mmap_rwsem | ||
| HALF_LOCKED2 | src_ptl |
mm/mremap.c move_ptes() -> pte_clear_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| LOCK2 | &mm->mmap_lock | ||
| LOCK2 | old_ptl | ||
| LOCK2 | rcu_read | ||
| HALF_LOCKED2 | &tsk->signal->exec_update_lock | ||
| HALF_LOCKED2 | new_ptl | ||
| TYPE_LOCK | (struct mm_struct)->mmap_lock |
mm/memory.c __copy_present_ptes() -> pte_clear_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pte | $4 [m] |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| LOCK2 | &mm->mmap_lock | ||
| LOCK2 | &oldmm->mmap_lock | ||
| LOCK2 | dst_ptl | ||
| LOCK2 | rcu_read | ||
| LOCK2 | src_ptl | ||
| TYPE_LOCK | (struct mm_struct)->mmap_lock |
mm/memory.c do_uffd_rwp() -> pte_clear_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pte | r pte_modify |
| PREEMPT_ADD | <- disables preempt | ||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| LOCK2 | rcu_read | ||
| LOCK2 | vmf->ptl | ||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | &pool->lock |
mm/memory.c do_wp_page() -> pte_clear_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| LOCK2 | vmf->ptl | ||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | rcu_read |