Documented in 1 files:
Defined in 1 files as a prototype:
Defined in 1 files as a member:
Defined in 2 files as a function:
Referenced in 6 files:
- drivers/gpu/drm/drm_pagemap.c, line 1375
- drivers/gpu/drm/nouveau/nouveau_dmem.c, line 292
- include/linux/memremap.h
- lib/test_hmm.c, line 1868
- mm/huge_memory.c
- mm/truncate.c, line 189
Smatch caller information:
mm/huge_memory.c split_huge_pages_in_file() -> folio_split()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | folio | 4096-ptr_max |
| PARAM_VALUE | 0 | folio->mapping | 4096-ptr_max |
| PARAM_VALUE | 1 | new_order | 0-254 |
| PARAM_VALUE | 3 | list | 0 |
| CAPPED_DATA | 0 | folio->mapping | 1 |
| CAPPED_DATA | 1 | new_order | 1 |
| DATA_SOURCE | 0 | folio | r filemap_get_folio |
| PARAM_COMPARE | 0 | &folio->page | <= $2 |
| LOCK2 | &split_debug_mutex |
mm/huge_memory.c split_huge_pages_pid() -> folio_split()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | folio | 4096-ptr_max |
| PARAM_VALUE | 0 | folio->mapping | 1-u64max |
| PARAM_VALUE | 1 | new_order | 0-254 |
| PARAM_VALUE | 3 | list | 0 |
| CAPPED_DATA | 0 | folio | 1 |
| CAPPED_DATA | 0 | folio->mapping | 1 |
| CAPPED_DATA | 1 | new_order | 1 |
| DATA_SOURCE | 0 | folio | r folio_walk_start |
| PARAM_COMPARE | 0 | &folio->page | <= $2 |
| LOCK2 | &mm->mmap_lock | ||
| LOCK2 | &split_debug_mutex | ||
| TYPE_LOCK | (struct mm_struct)->mmap_lock |
mm/truncate.c folio_split_or_unmap() -> folio_split()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | folio | 4096-ptr_max |
| PARAM_VALUE | 0 | folio->mapping->i_mmap_rwsem.first_waiter->handoff_set | 0-1 |
| PARAM_VALUE | 0 | folio->mapping->i_mmap_rwsem.first_waiter->type | 0-1 |
| PARAM_VALUE | 0 | *folio->_mm_id | 0-4294967295 |
| PARAM_VALUE | 1 | new_order | 0-31 |
| PARAM_VALUE | 3 | list | 0 |
| CAPPED_DATA | 0 | folio->mapping | 1 |
| DATA_SOURCE | 0 | folio | $0 |
| DATA_SOURCE | 1 | new_order | $2 |
| DATA_SOURCE | 2 | split_at | $1 |
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| HALF_LOCKED2 | &inode->i_rwsem |