Add comments for vm_operations_struct::close documenting locking
requirements for this callback and its callers.
Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
---
changes in v5
- Added Acked-by
include/linux/mm.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index a7e4a9e7d807..b9b88ba7564b 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -577,6 +577,10 @@ enum page_entry_size {
*/
struct vm_operations_struct {
void (*open)(struct vm_area_struct * area);
+ /**
+ * @close: Called when the VMA is being removed from the MM.
+ * Context: User context. May sleep. Caller holds mmap_lock.
+ */
void (*close)(struct vm_area_struct * area);
/* Called any time before splitting to check if it's allowed */
int (*may_split)(struct vm_area_struct *area, unsigned long addr);
--
2.34.1.173.g76aa8bc2d0-goog
