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authorJan Kara2023-06-01 12:58:21 +0200
committerGreg Kroah-Hartman2023-07-19 16:22:12 +0200
commit6aaa22ec7310d0fe1aec1ef9297230b3210b8083 (patch)
treeed62bd146990cdb7287f32996afd6288a4cbafaa /fs/ext4
parent606e463eefeddf1c425940e6d71387bef8265035 (diff)
ext4: Remove ext4 locking of moved directory
commit 3658840cd363f2be094f5dfd2f0b174a9055dd0f upstream. Remove locking of moved directory in ext4_rename2(). We will take care of it in VFS instead. This effectively reverts commit 0813299c586b ("ext4: Fix possible corruption when moving a directory") and followup fixes. CC: Ted Tso <tytso@mit.edu> CC: stable@vger.kernel.org Signed-off-by: Jan Kara <jack@suse.cz> Message-Id: <20230601105830.13168-1-jack@suse.cz> Signed-off-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/namei.c17
1 files changed, 2 insertions, 15 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 5a3dbbabe23a..0e1aeb9cb4a7 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -3834,19 +3834,10 @@ static int ext4_rename(struct user_namespace *mnt_userns, struct inode *old_dir,
return retval;
}
- /*
- * We need to protect against old.inode directory getting converted
- * from inline directory format into a normal one.
- */
- if (S_ISDIR(old.inode->i_mode))
- inode_lock_nested(old.inode, I_MUTEX_NONDIR2);
-
old.bh = ext4_find_entry(old.dir, &old.dentry->d_name, &old.de,
&old.inlined);
- if (IS_ERR(old.bh)) {
- retval = PTR_ERR(old.bh);
- goto unlock_moved_dir;
- }
+ if (IS_ERR(old.bh))
+ return PTR_ERR(old.bh);
/*
* Check for inode number is _not_ due to possible IO errors.
@@ -4043,10 +4034,6 @@ release_bh:
brelse(old.bh);
brelse(new.bh);
-unlock_moved_dir:
- if (S_ISDIR(old.inode->i_mode))
- inode_unlock(old.inode);
-
return retval;
}