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From: Zhang Yi <yi.zhang@huaweicloud.com>
To: linux-ext4@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	tytso@mit.edu, adilger.kernel@dilger.ca, jack@suse.cz,
	ritesh.list@gmail.com, yi.zhang@huawei.com,
	yi.zhang@huaweicloud.com, chengzhihao1@huawei.com,
	yukuai3@huawei.com
Subject: [PATCH v3 03/10] ext4: warn if delalloc counters are not zero on inactive
Date: Wed,  8 May 2024 14:12:13 +0800	[thread overview]
Message-ID: <20240508061220.967970-4-yi.zhang@huaweicloud.com> (raw)
In-Reply-To: <20240508061220.967970-1-yi.zhang@huaweicloud.com>

From: Zhang Yi <yi.zhang@huawei.com>

The per-inode i_reserved_data_blocks count the reserved delalloc blocks
in a regular file, it should be zero when destroying the file. The
per-fs s_dirtyclusters_counter count all reserved delalloc blocks in a
filesystem, it also should be zero when umounting the filesystem. Now we
have only an error message if the i_reserved_data_blocks is not zero,
which is unable to be simply captured, so add WARN_ON_ONCE to make it
more visable.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
---
 fs/ext4/super.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 044135796f2b..440dd54eea25 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1343,6 +1343,9 @@ static void ext4_put_super(struct super_block *sb)
 
 	ext4_group_desc_free(sbi);
 	ext4_flex_groups_free(sbi);
+
+	WARN_ON_ONCE(!ext4_forced_shutdown(sb) &&
+		     percpu_counter_sum(&sbi->s_dirtyclusters_counter));
 	ext4_percpu_param_destroy(sbi);
 #ifdef CONFIG_QUOTA
 	for (int i = 0; i < EXT4_MAXQUOTAS; i++)
@@ -1473,7 +1476,8 @@ static void ext4_destroy_inode(struct inode *inode)
 		dump_stack();
 	}
 
-	if (EXT4_I(inode)->i_reserved_data_blocks)
+	if (!ext4_forced_shutdown(inode->i_sb) &&
+	    WARN_ON_ONCE(EXT4_I(inode)->i_reserved_data_blocks))
 		ext4_msg(inode->i_sb, KERN_ERR,
 			 "Inode %lu (%p): i_reserved_data_blocks (%u) not cleared!",
 			 inode->i_ino, EXT4_I(inode),
-- 
2.39.2


  parent reply	other threads:[~2024-05-08  6:22 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-08  6:12 [PATCH v3 00/10] ext4: support adding multi-delalloc blocks Zhang Yi
2024-05-08  6:12 ` [PATCH v3 01/10] ext4: factor out a common helper to query extent map Zhang Yi
2024-05-08  6:12 ` [PATCH v3 02/10] ext4: check the extent status again before inserting delalloc block Zhang Yi
2024-05-08 15:02   ` Markus Elfring
2024-05-09  8:26     ` Zhang Yi
2024-05-08  6:12 ` Zhang Yi [this message]
2024-05-12 15:10   ` [PATCH v3 03/10] ext4: warn if delalloc counters are not zero on inactive Jan Kara
2024-05-13 14:17     ` Zhang Yi
2024-05-08  6:12 ` [PATCH v3 04/10] ext4: trim delalloc extent Zhang Yi
2024-05-08 15:21   ` Markus Elfring
2024-05-09  8:27     ` Zhang Yi
2024-05-08  6:12 ` [PATCH v3 05/10] ext4: drop iblock parameter Zhang Yi
2024-05-08  6:12 ` [PATCH v3 06/10] ext4: make ext4_es_insert_delayed_block() insert multi-blocks Zhang Yi
2024-05-12 15:19   ` Jan Kara
2024-05-08  6:12 ` [PATCH v3 07/10] ext4: make ext4_da_reserve_space() reserve multi-clusters Zhang Yi
2024-05-08  6:12 ` [PATCH v3 08/10] ext4: factor out check for whether a cluster is allocated Zhang Yi
2024-05-12 15:40   ` Jan Kara
2024-05-14  2:37     ` Zhang Yi
2024-05-08  6:12 ` [PATCH v3 09/10] ext4: make ext4_insert_delayed_block() insert multi-blocks Zhang Yi
2024-05-12 21:47   ` Jan Kara
2024-05-08  6:12 ` [PATCH v3 10/10] ext4: make ext4_da_map_blocks() buffer_head unaware Zhang Yi
2024-05-12 21:51   ` Jan Kara

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