From: Miklos Szeredi <mszeredi@xxxxxxx>
Move checking i_nlink from after ext4_get_first_dir_block() to before. The
check doesn't rely on the result of that function and the function only
fails on fs corruption, so the order shouldn't matter.
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
---
fs/ext4/namei.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index c9e38bd30e8b..94583a4bd875 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -3089,6 +3089,10 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
retval = -ENOTEMPTY;
if (!empty_dir(new.inode))
goto end_rename;
+ } else {
+ retval = -EMLINK;
+ if (new.dir != old.dir && EXT4_DIR_LINK_MAX(new.dir))
+ goto end_rename;
}
retval = -EIO;
old.dir_bh = ext4_get_first_dir_block(handle, old.inode,
@@ -3098,10 +3102,6 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
goto end_rename;
if (le32_to_cpu(old.parent_de->inode) != old.dir->i_ino)
goto end_rename;
- retval = -EMLINK;
- if (!new.inode && new.dir != old.dir &&
- EXT4_DIR_LINK_MAX(new.dir))
- goto end_rename;
BUFFER_TRACE(old.dir_bh, "get_write_access");
retval = ext4_journal_get_write_access(handle, old.dir_bh);
if (retval)
--
1.8.1.4
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
