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authorDavid Sterba <dsterba@suse.com>2020-07-07 19:30:06 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-07-20 17:15:40 +0300
commite00c01b74add2dfa6947c1cefc74760e560dbf55 (patch)
tree7f7910d3b8aeb8ea6944110d614065859e393545 /fs/btrfs
parentce3986380a1084e78f0831610b8d587d57642e43 (diff)
downloadlinux-e00c01b74add2dfa6947c1cefc74760e560dbf55.tar.xz
btrfs: clear defrag status of a root if starting transaction fails
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@vger.kernel.org # 4.4+ Reviewed-by: Qu Wenruo <wqu@suse.com> Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/transaction.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 1b52c960682d..049535115c9d 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1311,8 +1311,10 @@ int btrfs_defrag_root(struct btrfs_root *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);