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authorTao Ma <boyu.mt@taobao.com>2012-07-09 16:29:05 -0400
committerTheodore Ts'o <tytso@mit.edu>2012-07-09 16:29:05 -0400
commitef58f69c3c34f6377f1e21d3533c806dbd980ad0 (patch)
treed70873af34e22a92988308a04ec1d5818bff8100 /fs/ext4
parent952fc18ef9ec707ebdc16c0786ec360295e5ff15 (diff)
downloadop-kernel-dev-ef58f69c3c34f6377f1e21d3533c806dbd980ad0.zip
op-kernel-dev-ef58f69c3c34f6377f1e21d3533c806dbd980ad0.tar.gz
ext4: use proper csum calculation in ext4_rename
In ext4_rename, when the old name is a dir, we need to change ".." to its new parent and journal the change, so with metadata_csum enabled, we have to re-calc the csum. As the first block of the dir can be either a htree root or a normal directory block and we have different csum calculation for these 2 types, we have to choose the right one in ext4_rename. btw, it is found by xfstests 013. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Acked-by: Darrick J. Wong <djwong@us.ibm.com>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/namei.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 5845cd9..0edaf18 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2918,8 +2918,15 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
PARENT_INO(dir_bh->b_data, new_dir->i_sb->s_blocksize) =
cpu_to_le32(new_dir->i_ino);
BUFFER_TRACE(dir_bh, "call ext4_handle_dirty_metadata");
- retval = ext4_handle_dirty_dirent_node(handle, old_inode,
- dir_bh);
+ if (is_dx(old_inode)) {
+ retval = ext4_handle_dirty_dx_node(handle,
+ old_inode,
+ dir_bh);
+ } else {
+ retval = ext4_handle_dirty_dirent_node(handle,
+ old_inode,
+ dir_bh);
+ }
if (retval) {
ext4_std_error(old_dir->i_sb, retval);
goto end_rename;
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