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-rw-r--r--Documentation/filesystems/porting10
1 files changed, 7 insertions, 3 deletions
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 6e29954851a2..0eeb3954dea3 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -400,10 +400,14 @@ a file off.
--
[mandatory]
-
---
-[mandatory]
->get_sb() is gone. Switch to use of ->mount(). Typically it's just
a matter of switching from calling get_sb_... to mount_... and changing the
function type. If you were doing it manually, just switch from setting ->mnt_root
to some pointer to returning that pointer. On errors return ERR_PTR(...).
+
+--
+[mandatory]
+ ->permission(), generic_permission() and ->check_acl() have lost flags
+argument; instead of passing IPERM_FLAG_RCU we add MAY_NOT_BLOCK into mask.
+ generic_permission() has also lost the check_acl argument; if you want
+non-NULL to be used for that inode, put it into ->i_op->check_acl.