From: Al Viro <viro@zeniv.linux.org.uk>
To: linux-fsdevel@vger.kernel.org
Cc: Theodore Ts'o <tytso@mit.edu>, linux-ext4@vger.kernel.org
Subject: [PATCH 12/22] ext4_add_entry(): ->d_name.len is never 0
Date: Wed, 20 Dec 2023 05:24:54 +0000 [thread overview]
Message-ID: <20231220052454.GK1674809@ZenIV> (raw)
In-Reply-To: <20231220051348.GY1674809@ZenIV>
That bogosity goes back to the initial merge of ext3. Once upon a time
ext2 used to have a similar check; that got taken out during the switch
to page cache (June 2001). ext3 got merged into mainline 5 months later,
still using buffer cache for directories; removal of the pointless check
in ext2 should've been done as a separate patch, but it hadn't been,
so that thing got missed...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/ext4/namei.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index d252935f9c8a..fa8b8dd841b5 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2388,8 +2388,6 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
sb = dir->i_sb;
blocksize = sb->s_blocksize;
- if (!dentry->d_name.len)
- return -EINVAL;
if (fscrypt_is_nokey_name(dentry))
return -ENOKEY;
--
2.39.2
next prev parent reply other threads:[~2023-12-20 5:24 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-20 5:13 [PATCHES] assorted fs cleanups Al Viro
2023-12-20 5:15 ` PATCH 01/22] hostfs: use d_splice_alias() calling conventions to simplify failure exits Al Viro
2023-12-20 5:16 ` [PATCH 02/22] /proc/sys: " Al Viro
2023-12-20 5:17 ` [PATCH 03/22] zonefs: d_splice_alias() will do the right thing on ERR_PTR() inode Al Viro
2023-12-20 7:09 ` Damien Le Moal
2023-12-20 5:18 ` [PATCH 04/22] udf: " Al Viro
2023-12-21 12:19 ` Jan Kara
2023-12-20 5:19 ` [PATCH 05/22] affs: d_obtain_alias(ERR_PTR(...)) will do the right thing Al Viro
2023-12-20 5:19 ` [PATCH 06/22] befs: " Al Viro
2023-12-20 5:20 ` [PATCH 07/22] ceph: d_obtain_{alias,root}(ERR_PTR(...)) " Al Viro
2023-12-21 0:35 ` Xiubo Li
2023-12-20 5:21 ` [PATCH 08/22] gfs2: d_obtain_alias(ERR_PTR(...)) " Al Viro
2023-12-20 5:22 ` [PATCH 09/22] kernfs: d_obtain_alias(NULL) " Al Viro
2023-12-20 5:23 ` nilfs2: d_obtain_alias(ERR_PTR(...)) " Al Viro
2023-12-20 14:46 ` Ryusuke Konishi
2023-12-20 5:23 ` [PATCH 11/22] udf: " Al Viro
2023-12-21 12:20 ` Jan Kara
2023-12-20 5:24 ` Al Viro [this message]
2023-12-20 5:25 ` [PATCH 13/22] bfs_add_entry(): get rid of pointless ->d_name.len checks Al Viro
2023-12-20 11:03 ` Tigran Aivazian
2023-12-20 5:26 ` [PATCH 14/22] __ocfs2_add_entry(), ocfs2_prepare_dir_for_insert(): namelen checks Al Viro
2023-12-20 5:27 ` [PATCH 15/22] reiserfs_add_entry(): get rid of pointless " Al Viro
2023-12-20 5:28 ` [PATCH 16/22] udf_fiiter_add_entry(): check for zero ->d_name.len is bogus Al Viro
2023-12-21 12:22 ` Jan Kara
2023-12-20 5:29 ` [PATCH 17/22] get rid of passing callbacks to ceph __dentry_leases_walk() Al Viro
2023-12-21 0:45 ` Xiubo Li
2023-12-21 1:12 ` Al Viro
2023-12-21 1:16 ` Xiubo Li
2023-12-20 5:30 ` [PATCH 18/22] nfsd: kill stale comment about simple_fill_super() requirements Al Viro
2023-12-20 14:22 ` Chuck Lever
2023-12-20 5:31 ` [PATCH 19/22] ocfs2_find_match(): there's no such thing as NULL or negative ->d_parent Al Viro
2023-12-20 5:31 ` [PATCH 20/22] gfs2: use is_subdir() Al Viro
2023-12-20 5:32 ` [PATCH 21/22] orangefs: saner arguments passing in readdir guts Al Viro
2023-12-27 12:05 ` Mike Marshall
2024-01-02 16:25 ` Mike Marshall
2023-12-20 5:33 ` [PATCH 22/22] apparmorfs: don't duplicate kfree_link() Al Viro
2023-12-20 12:16 ` [PATCHES] assorted fs cleanups Andreas Grünbacher
2023-12-20 17:15 ` Al Viro
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