We get lock inversion with umount if we allow iputs from sync_fs, so use the
delay iput flag to keep this from happening. Thanks,
Reported-by: David Sterba <dsterba@xxxxxxx>
Signed-off-by: Josef Bacik <jbacik@xxxxxxxxxxxx>
---
fs/btrfs/super.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 41d81be..14d2be0 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -862,7 +862,7 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
return 0;
}
- btrfs_wait_all_ordered_extents(fs_info, 0);
+ btrfs_wait_all_ordered_extents(fs_info, 1);
trans = btrfs_attach_transaction_barrier(root);
if (IS_ERR(trans)) {
--
1.7.7.6
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