don't pass nameidata to ->create()

[mirror_ubuntu-zesty-kernel.git] / Documentation / filesystems / porting

diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 690f573928b998426755ef735bd96bc69fc2cab9..2bef2b3843d1d4e09ead99fed121de4b2ab92db2 100644 (file)
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -436,3 +436,9 @@ d_make_root() drops the reference to inode if dentry allocation fails.
 [mandatory]
        The witch is dead!  Well, 2/3 of it, anyway.  ->d_revalidate() and
 ->lookup() do *not* take struct nameidata anymore; just the flags.
+--
+[mandatory]
+       ->create() doesn't take struct nameidata *; unlike the previous
+two, it gets "is it an O_EXCL or equivalent?" boolean argument.  Note that
+local filesystems can ignore tha argument - they are guaranteed that the
+object doesn't exist.  It's remote/distributed ones that might care...