Defined in 1 files as a macro:
Defined in 3 files as a function:
- arch/riscv/include/asm/pgtable.h, line 909 (as a function)
- arch/x86/include/asm/pgtable.h, line 529 (as a function)
- include/asm-generic/pgtable_uffd.h, line 27 (as a function)
Referenced in 5 files:
- fs/proc/task_mmu.c
- include/linux/userfaultfd_k.h
- mm/huge_memory.c
- mm/page_table_check.c, line 230
- mm/userfaultfd.c, line 2756
Smatch caller information:
mm/huge_memory.c __split_huge_pmd_locked() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pmd | r pmdp_invalidate |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &vma->vm_private_data->rw_sema |
mm/huge_memory.c __split_huge_zero_page_pmd() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pmd | r pmdp_huge_clear_flush |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| LOCK2 | rcu_read | ||
| HALF_LOCKED2 | &vma->vm_private_data->rw_sema | ||
| HALF_LOCKED2 | ptl |
mm/huge_memory.c __split_huge_zero_page_pmd() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pmd | r pmdp_huge_clear_flush |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| LOCK2 | rcu_read | ||
| HALF_LOCKED2 | &vma->vm_private_data->rw_sema | ||
| HALF_LOCKED2 | ptl |
mm/huge_memory.c change_huge_pmd() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &dst_mm->mmap_lock | ||
| HALF_LOCKED2 | &mm->mmap_lock |
mm/huge_memory.c change_huge_pmd() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &dst_mm->mmap_lock | ||
| HALF_LOCKED2 | &mm->mmap_lock |
mm/huge_memory.c copy_huge_pmd() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PREEMPT_ADD | <- disables preempt | ||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| LOCK2 | &mm->mmap_lock | ||
| LOCK2 | &oldmm->mmap_lock | ||
| LOCK2 | src_ptl | ||
| TYPE_LOCK | (struct mm_struct)->mmap_lock |
mm/huge_memory.c move_huge_pmd() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pmd | r move_soft_dirty_pmd |
| LOCK2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | &tsk->signal->exec_update_lock | ||
| HALF_LOCKED2 | new_ptl | ||
| TYPE_LOCK | (struct mm_struct)->mmap_lock |
mm/huge_memory.c set_pmd_migration_entry() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pmd | r pmdp_invalidate |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING |
mm/huge_memory.c userfaultfd_huge_pmd_wp() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pmd | $1 |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | ptl |
mm/userfaultfd.c userfaultfd_must_wait() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pmd | r pmdp_get_lockless |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING |
fs/proc/task_mmu.c pagemap_pmd_range_thp() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &mm->mmap_lock |
fs/proc/task_mmu.c pagemap_thp_category() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pmd | $3 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &mm->mmap_lock |
mm/page_table_check.c page_table_check_pmd_flags() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pmd | $0 |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | ptl | ||
| HALF_LOCKED2 | vmf->ptl |
mm/memory.c userfaultfd_huge_pmd_rwp() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pmd | $1 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | &pool->lock |
mm/memory.c userfaultfd_huge_pmd_wp() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pmd | $1 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &mm->mmap_lock | ||
| HALF_LOCKED2 | &pool->lock |
mm/gup.c userfaultfd_huge_pmd_wp() -> pmd_uffd()
| Type | Parameter | Key | Value |
|---|---|---|---|
| DATA_SOURCE | 0 | pmd | $1 |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| LOCK2 | ptl | ||
| HALF_LOCKED2 | &mm->mmap_lock |