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Message-Id: <20210712060920.614910827@linuxfoundation.org>
Date: Mon, 12 Jul 2021 08:01:14 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Qu Wenruo <wqu@...e.com>,
Anand Jain <anand.jain@...cle.com>,
David Sterba <dsterba@...e.com>
Subject: [PATCH 5.13 051/800] btrfs: clear defrag status of a root if starting transaction fails
From: David Sterba <dsterba@...e.com>
commit 6819703f5a365c95488b07066a8744841bf14231 upstream.
The defrag loop processes leaves in batches and starting transaction for
each. The whole defragmentation on a given root is protected by a bit
but in case the transaction fails, the bit is not cleared
In case the transaction fails the bit would prevent starting
defragmentation again, so make sure it's cleared.
CC: stable@...r.kernel.org # 4.4+
Reviewed-by: Qu Wenruo <wqu@...e.com>
Reviewed-by: Anand Jain <anand.jain@...cle.com>
Signed-off-by: David Sterba <dsterba@...e.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
fs/btrfs/transaction.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1406,8 +1406,10 @@ int btrfs_defrag_root(struct btrfs_root
while (1) {
trans = btrfs_start_transaction(root, 0);
- if (IS_ERR(trans))
- return PTR_ERR(trans);
+ if (IS_ERR(trans)) {
+ ret = PTR_ERR(trans);
+ break;
+ }
ret = btrfs_defrag_leaves(trans, root);
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