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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-20 00:10:27 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-20 00:10:27 -0300
commitd0b2f91bede3bd5e3d24dd6803e56eee959c1797 (patch)
tree7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /Documentation/filesystems/porting
parente914f8eb445e8f74b00303c19c2ffceaedd16a05 (diff)
Linux-libre 4.8.2-gnupck-4.8.2-gnu
Diffstat (limited to 'Documentation/filesystems/porting')
-rw-r--r--Documentation/filesystems/porting7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index a5fb89cac..b1bd05ea6 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -585,3 +585,10 @@ in your dentry operations instead.
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.
+--
+[mandatory]
+ ->d_compare() doesn't get parent as a separate argument anymore. If you
+ used it for finding the struct super_block involved, dentry->d_sb will
+ work just as well; if it's something more complicated, use dentry->d_parent.
+ Just be careful not to assume that fetching it more than once will yield
+ the same value - in RCU mode it could change under you.