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authorTao Ma <boyu.mt@taobao.com>2012-12-10 14:06:01 -0500
committerTheodore Ts'o <tytso@mit.edu>2012-12-10 14:06:01 -0500
commit32f7f22c0b52e8189fef83986b16dc7abe95f2c4 (patch)
treec11441065aa244746f17bf0efd322fe6dd06c04c /fs/ext4/xattr.h
parent61f86638d8a656101bb0f9c41c55d9685f8a2357 (diff)
downloadop-kernel-dev-32f7f22c0b52e8189fef83986b16dc7abe95f2c4.zip
op-kernel-dev-32f7f22c0b52e8189fef83986b16dc7abe95f2c4.tar.gz
ext4: let ext4_rename handle inline dir
In case we rename a directory, ext4_rename has to read the dir block and change its dotdot's information. The old ext4_rename encapsulated the dir_block read into itself. So this patch adds a new function ext4_get_first_dir_block() which gets the dir buffer information so the ext4_rename can handle it properly. As it will also change the parent inode number, we return the parent_de so that ext4_rename() can handle it more easily. ext4_find_entry is also changed so that the caller(rename) can tell whether the found entry is an inlined one or not and journaling the corresponding buffer head. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/xattr.h')
-rw-r--r--fs/ext4/xattr.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/ext4/xattr.h b/fs/ext4/xattr.h
index 7747bbc..f6c3ca6 100644
--- a/fs/ext4/xattr.h
+++ b/fs/ext4/xattr.h
@@ -181,6 +181,9 @@ extern int ext4_delete_inline_entry(handle_t *handle,
struct buffer_head *bh,
int *has_inline_data);
extern int empty_inline_dir(struct inode *dir, int *has_inline_data);
+extern struct buffer_head *ext4_get_first_inline_block(struct inode *inode,
+ struct ext4_dir_entry_2 **parent_de,
+ int *retval);
# else /* CONFIG_EXT4_FS_XATTR */
static inline int
@@ -387,6 +390,14 @@ static inline int empty_inline_dir(struct inode *dir, int *has_inline_data)
{
return 0;
}
+
+static inline struct buffer_head *
+ext4_get_first_inline_block(struct inode *inode,
+ struct ext4_dir_entry_2 **parent_de,
+ int *retval)
+{
+ return NULL;
+}
# endif /* CONFIG_EXT4_FS_XATTR */
#ifdef CONFIG_EXT4_FS_SECURITY
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