From: Yun Zhou <yun.zhou@windriver.com>
To: <tytso@mit.edu>, <adilger.kernel@dilger.ca>,
<libaokun@linux.alibaba.com>, <jack@suse.cz>,
<ojaswin@linux.ibm.com>, <ritesh.list@gmail.com>,
<yi.zhang@huawei.com>
Cc: <linux-ext4@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<yun.zhou@windriver.com>
Subject: [RFC PATCH 1/9] ext4: add deprecation warning for inline_data feature
Date: Mon, 27 Jul 2026 18:54:33 +0800 [thread overview]
Message-ID: <20260727105441.3213095-2-yun.zhou@windriver.com> (raw)
In-Reply-To: <20260727105441.3213095-1-yun.zhou@windriver.com>
Emit a mount-time warning when the inline_data feature is enabled,
directing users to convert their filesystems with tune2fs.
Signed-off-by: Yun Zhou <yun.zhou@windriver.com>
---
fs/ext4/super.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 6c18b5adffca..9913e30b7040 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3145,6 +3145,12 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
ext4_msg(sb, KERN_WARNING,
"warning: checktime reached, "
"running e2fsck is recommended");
+ if (ext4_has_feature_inline_data(sb))
+ ext4_msg(sb, KERN_WARNING,
+ "warning: inline_data feature is deprecated and "
+ "will be removed in a future kernel release. "
+ "Use 'tune2fs -O ^inline_data' to convert.");
+
if (!sbi->s_journal)
es->s_state &= cpu_to_le16(~EXT4_VALID_FS);
if (!(__s16) le16_to_cpu(es->s_max_mnt_count))
--
2.43.0
next prev parent reply other threads:[~2026-07-27 10:55 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-27 10:54 [RFC PATCH 0/9] ext4: phase out inline data write paths for regular files Yun Zhou
2026-07-27 10:54 ` Yun Zhou [this message]
2026-07-27 10:54 ` [RFC PATCH 2/9] ext4: stop creating inline data for new " Yun Zhou
2026-07-27 10:54 ` [RFC PATCH 3/9] ext4: use safe convert path for inline data write overflow Yun Zhou
2026-07-27 10:54 ` [RFC PATCH 4/9] ext4: remove inline data write paths for regular files Yun Zhou
2026-07-27 10:54 ` [RFC PATCH 5/9] ext4: remove dead inline data write code Yun Zhou
2026-07-27 10:54 ` [RFC PATCH 6/9] ext4: allocate block before destroying inline data in conversion Yun Zhou
2026-07-27 10:54 ` [RFC PATCH 7/9] ext4: remove DA convert path for regular file inline data Yun Zhou
2026-07-27 10:54 ` [RFC PATCH 8/9] ext4: document inline_data deprecation Yun Zhou
2026-07-27 10:54 ` [RFC PATCH 9/9] ext4: populate extent entry atomically during inline data destroy Yun Zhou
2026-07-27 15:03 ` [RFC PATCH 0/9] ext4: phase out inline data write paths for regular files Theodore Tso
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