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authorDaniel Vetter <daniel.vetter@ffwll.ch>2016-10-25 10:06:04 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-10-25 10:06:04 +0200
commit0fc4f78f44e6c6148cee32456f0d0023ec1c1fd8 (patch)
tree71c906207227dd8753a0191db9304035ec3471a4 /Documentation/filesystems/porting
parent78010cd9736ec571796f4404524ed575b81238b9 (diff)
parent5481e27f6fd06b7cb902072e81d6b083db8155eb (diff)
Merge remote-tracking branch 'airlied/drm-next' into topic/drm-misc
Backmerge latest drm-next to have a baseline for the s/fence/dma_fence/ patch from Chris. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'Documentation/filesystems/porting')
-rw-r--r--Documentation/filesystems/porting8
1 files changed, 6 insertions, 2 deletions
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index b1bd05ea66b2..bdd025ceb763 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -287,8 +287,8 @@ implementing on-disk size changes. Start with a copy of the old inode_setattr
and vmtruncate, and the reorder the vmtruncate + foofs_vmtruncate sequence to
be in order of zeroing blocks using block_truncate_page or similar helpers,
size update and on finally on-disk truncation which should not fail.
-inode_change_ok now includes the size checks for ATTR_SIZE and must be called
-in the beginning of ->setattr unconditionally.
+setattr_prepare (which used to be inode_change_ok) now includes the size checks
+for ATTR_SIZE and must be called in the beginning of ->setattr unconditionally.
[mandatory]
@@ -592,3 +592,7 @@ in your dentry operations instead.
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.
+--
+[mandatory]
+ ->rename() has an added flags argument. Any flags not handled by the
+ filesystem should result in EINVAL being returned.