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Diffstat (limited to '')
| -rw-r--r-- | Documentation/mm/split_page_table_lock.rst | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/mm/split_page_table_lock.rst b/Documentation/mm/split_page_table_lock.rst index e4f6972eb6c0..581446d4a4eb 100644 --- a/Documentation/mm/split_page_table_lock.rst +++ b/Documentation/mm/split_page_table_lock.rst @@ -16,9 +16,13 @@ There are helpers to lock/unlock a table and other accessor functions: - pte_offset_map_lock() maps PTE and takes PTE table lock, returns pointer to PTE with pointer to its PTE table lock, or returns NULL if no PTE table; - - pte_offset_map_nolock() + - pte_offset_map_ro_nolock() maps PTE, returns pointer to PTE with pointer to its PTE table lock (not taken), or returns NULL if no PTE table; + - pte_offset_map_rw_nolock() + maps PTE, returns pointer to PTE with pointer to its PTE table + lock (not taken) and the value of its pmd entry, or returns NULL + if no PTE table; - pte_offset_map() maps PTE, returns pointer to PTE, or returns NULL if no PTE table; - pte_unmap() |