Merge branch 'for-linus-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...

[cascardo/linux.git] / Documentation / filesystems / porting

diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 46f3bb7..a5fb89c 100644 (file)
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -578,3 +578,10 @@ in your dentry operations instead.
 --
 [mandatory]
        ->atomic_open() calls without O_CREAT may happen in parallel.
+--
+[mandatory]
+       ->setxattr() and xattr_handler.set() get dentry and inode passed separately.
+       dentry might be yet to be attached to inode, so do _not_ use its ->d_inode
+       in the instances.  Rationale: !@#!@# security_d_instantiate() needs to be
+       called before we attach dentry to inode and !@#!@##!@$!$#!@#$!@$!@$ smack
+       ->d_instantiate() uses not just ->getxattr() but ->setxattr() as well.