X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=Documentation%2Ffilesystems%2Fporting;h=fe2b7ae6f96224b7110b3576080d2aef4b7fef31;hb=d320e203bad4cfcef3613e83a52f8c70a77e8a60;hp=f0890581f7f65a14d8451e85dcb2f59912db1d3d;hpb=d24fec3991076124e069c889c530cdc69cd43fb8;p=cascardo%2Flinux.git

diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index f0890581f7f6..fe2b7ae6f962 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -455,3 +455,11 @@ in your dentry operations instead.
 	vfs_follow_link has been removed.  Filesystems must use nd_set_link
 	from ->follow_link for normal symlinks, or nd_jump_link for magic
 	/proc/<pid> style links.
+--
+[mandatory]
+	iget5_locked()/ilookup5()/ilookup5_nowait() test() callback used to be
+	called with both ->i_lock and inode_hash_lock held; the former is *not*
+	taken anymore, so verify that your callbacks do not rely on it (none
+	of the in-tree instances did).  inode_hash_lock is still held,
+	of course, so they are still serialized wrt removal from inode hash,
+	as well as wrt set() callback of iget5_locked().