Merge tag 'f2fs-for-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeu...

[linux-2.6-microblaze.git] / ipc / util.h

diff --git a/ipc/util.h b/ipc/util.h
index 5766c61..2dd7ce0 100644 (file)
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -145,6 +145,9 @@ int ipcperms(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, short flg);
  * ipc_get_maxidx - get the highest assigned index
  * @ids: ipc identifier set
  *
+ * The function returns the highest assigned index for @ids. The function
+ * doesn't scan the idr tree, it uses a cached value.
+ *
  * Called with ipc_ids.rwsem held for reading.
  */
 static inline int ipc_get_maxidx(struct ipc_ids *ids)