diff options
Diffstat (limited to 'Documentation/filesystems/porting')
| -rw-r--r-- | Documentation/filesystems/porting | 8 |
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. |